10 of the Best Sales Outsourcing Companies in 2026

Sales outsourcing companies handle lead generation, appointment setting, and deal closing on behalf of US businesses, giving companies access to sales capacity without building an internal team from scratch.

The need usually surfaces at a predictable moment: Pipeline is stalling, headcount is frozen, or a new market needs coverage faster than internal hiring allows. The immediate fix looks obvious: Outsource the function and keep moving.

But the model you choose shapes the outcome more than most companies expect. Traditional outsourcing providers assign shared reps who split their attention across multiple clients and products. Offshore vendors save money but introduce time zone gaps that slow conversations and stall deals. And agencies focused on top-of-funnel only hand off leads without owning the full cycle.

In this guide, I cover ten of the best sales outsourcing companies in 2026, from full-cycle agencies to SDR-only firms, plus an alternative worth considering: Building a dedicated remote sales team with LatAm talent that works your hours and represents only your product.

What Are Sales Outsourcing Companies?

Sales outsourcing companies are third-party providers that handle some or all of your sales function on your behalf.

Instead of building an internal team, you hire an outside firm to run those activities using their people, tools, and processes.

These companies can handle a wide range of sales functions, including:

• Lead generation and qualification
• Outbound prospecting and cold outreach (email, phone, LinkedIn)
• SDR-as-a-service (top-of-funnel pipeline building)
• Appointment setting with qualified decision-makers
• Full-cycle sales and account management
• Inside sales and sales management outsourcing

The category spans a wide range of service models. Some providers assign you a shared rep who works across multiple client accounts simultaneously. Others run managed SDR programs with dedicated teams. 

There's also a different approach: Rather than outsourcing the function, some companies hire dedicated full-time sales professionals who work exclusively for them, embedded in their team and culture. Near sits in this second camp.

Understanding the difference between these models is the first step to choosing the right provider.

When Should You Outsource Sales?

You should consider outsourcing sales when your team lacks the bandwidth or expertise to build a pipeline internally, you need to test a new market without long-term commitment, or your current sales performance isn't delivering the results your business requires. 

Outsourcing can cut your pipeline build time significantly and reduce the cost per hire.

Here are the most common scenarios:

• Limited in-house expertise: If your team lacks certain sales expertise, such as experience in inside sales, hiring an external team of sales professionals with proven success in your industry might be more efficient and effective.
• Rapid scaling needs: If you need to scale quickly, outsourcing is a faster path to expanded sales reach without the time and expenses required for recruiting and training a large in-house team.
• Trialing new markets: Partnering with outsourced sales teams can help you test a new market or customer segment without committing extensive company resources.
• Inefficient current sales performance: If your in-house sales team isn't hitting targets, bringing in an external partner with specialized expertise, including outsourced sales management, can introduce fresh processes and approaches that internal teams often can't develop on their own.

{{offshore-talent}}

What Sales Processes Should You Outsource?

Outsourcing doesn't have to mean handing over your entire sales operation. Many companies keep a core team in-house while outsourcing specific functions to fill gaps or free up capacity. The key is identifying which parts of the sales funnel are slowing your team down and delegating those strategically.

Here are the most commonly outsourced sales processes:

Sales development (SDR work)

Sales development is one of the most commonly outsourced functions, particularly in B2B. SDRs handle cold outreach via email, LinkedIn, and phone, along with follow-ups to move prospects toward a meeting. It's a high-activity role that benefits from strong systems and dedicated focus, which makes it a natural candidate for outsourcing when internal bandwidth is limited.

Appointment setting 

Appointment setters schedule qualified meetings so your sales team can focus on closing rather than prospecting. Outsourced appointment setters handle outreach, qualification, and calendar coordination, ensuring every meeting on your sales team's calendar is worth their time.

Inside sales 

Inside sales specialists conduct the full sales conversation remotely, via phone or email, on behalf of your company. Outsourcing this function lets you expand your sales reach without adding headcount, provided the provider has relevant industry and product knowledge.

Lead qualification 

Lead qualification specialists filter your prospect pool using predefined criteria, separating high-potential leads from lower-priority ones before they reach your sales team. This keeps your closers focused on the opportunities most likely to convert.

Sales representatives 

Some companies outsource their entire sales representative function, handing off the full cycle from initial outreach to close. These reps manage relationships, conduct demos, handle objections, and close deals on your behalf. Providers typically structure this as a base fee plus commission, aligning their incentives with your revenue.

Sales training 

Outsourcing sales training brings external expertise and proven methodologies to your team: Prospecting, negotiation, objection handling, and closing techniques. It's useful when you want to upskill an existing team without building an internal training function from scratch.

How to Choose a Sales Outsourcing Company

The right sales outsourcing partner depends on more than price. Here are the criteria that matter most when evaluating your options:

1. Relevant industry expertise

The company should have documented experience in your specific industry. Generic outbound tactics rarely translate across verticals; a provider with SaaS case studies won't necessarily perform in manufacturing or healthcare. 

Ask for examples from companies with a similar deal size, sales cycle, and buyer profile.

2. Track record of success

Look for documented case studies, client reviews on verified platforms (G2, Clutch, or Trustpilot), and references that show measurable outcomes, not just activity metrics. 

Appointment volume is useful, but pipeline-to-close data is better. Ask what their average client ROI looks like and how they measure it.

3. How they structure their teams

This is where providers differ most. Some run shared-rep models where your account is one of several a rep manages at any time. Others assign dedicated teams. 

There is also a different approach altogether: Rather than outsourcing the sales function to a third party, some companies hire full-time remote sales professionals who work exclusively for them. Near helps companies take this route.

The model determines how much product knowledge your sales team builds, how accountable they are to your results, and how integrated they become with your internal operations. 

{{hiring-remotely}}

4. Types of sales outsourcing services offered

Not every provider covers the full sales funnel. Some specialize in appointment setting only, while others run full-cycle sales programs from prospecting to close. 

Be specific about which stages you need covered: Top-of-funnel pipeline, outbound SDR programs, business development outsourcing, account management, or all of the above. 

Misaligned scope is one of the most common reasons outsourcing engagements underdeliver.

5. Communication and transparency

Clear and frequent communication is non-negotiable for a successful partnership. The best providers offer call recordings, custom reporting, and direct access to the team running your campaigns. If a provider is vague about what you'll see and how often, that’s a signal.

6. Technology and CRM integration

The best sales outsourcing companies use current sales technology for CRM management, lead generation, analytics, and outreach automation. Confirm they can integrate their workflows with your existing CRM and reporting systems before you sign.

7. Scalability and flexibility

The company should be able to scale up or down as your business needs change. Look for providers with flexible contract terms and the capacity to add resources quickly. Month-to-month options are worth asking about, especially if you're in an evaluation phase.

Sales Outsourcing vs. Building Your Own Remote Team: Which Strategy Is Right for You?

Traditional sales outsourcing means hiring a third-party company to handle your sales processes. You're essentially renting access to their team and systems, often sharing resources with other clients.

Building your own remote sales team means hiring dedicated professionals who work exclusively for you. They just happen to be based in another country. These team members integrate into your company culture, use your systems, and grow with your business.

When evaluating your options, the key isn't just finding the cheapest or fastest solution. The best approach is to find what aligns with your long-term growth strategy and company culture.

Consider traditional sales outsourcing companies if:

• You need to test markets quickly with minimal commitment
• Your sales process is standardized and doesn't require deep product knowledge
• You prefer predictable monthly costs over building internal infrastructure
• You're looking for short-term support during peak periods

Consider building your own remote sales team if:

• You want team members who grow with your business long-term
• Your sales process requires deep product understanding and customer relationships
• You value cultural fit and team integration over pure cost savings
• You're willing to invest in building something sustainable rather than renting capacity

The choice comes down to whether you're solving an immediate capacity problem or building a strategic asset for long-term growth.

Why LatAm is worth considering before you sign with an agency?

If you've defaulted to outsourcing to save on the cost of building a US-based team, building your own sales team with Latin American talent is a compelling alternative. 

This approach, known as nearshore hiring, gives you the same cost savings as outsourcing while keeping your sales professionals fully dedicated to your product.

Here are some main advantages:

• Time zone compatibility: Your LatAm team works during your hours, enabling real-time collaboration that is impossible with teams in India or the Philippines. Research from Harvard Business School and INFORMS found that each additional hour of time zone difference reduces real-time communication by 11%. 
• Cultural alignment: Latin American professionals understand US business culture, communication styles, and market dynamics in ways that distant offshore teams often don't.
• True team integration: Instead of being “the outsourcing vendor,” your LatAm hires become actual team members who attend your meetings, understand your product deeply, and care about your success because it's directly tied to theirs.
• Quality without compromise: You can hire senior sales professionals with US company experience for what you'd pay junior-level talent domestically. According to Near's 2026 State of LatAm Hiring Report, companies save 30–70% compared to equivalent US hires, without sacrificing expertise or English proficiency.
  
  

‍

For a full breakdown, visit our salary guide.

This is about accessing great talent in markets where your budget goes further.

According to Near's research on why US companies are hiring in Latin America, 30% of companies exploring LatAm hiring are specifically switching from offshore to nearshore, driven by time zone gaps that prevent real-time collaboration with their sales and operations teams. Sales is the single most common department for that switch, representing 38% of all offshore-to-nearshore movers.

One of our clients put it plainly: 

We're prioritizing LatAm now because, for the roles we need at the moment, we want them to work in tandem with our US hires as opposed to off hours. We'd rather they work at the same time.

‍

Another client described the difference between an outsourcing vendor and a true team member this way: 

It ends up not feeling like they're part of the team. They're an agency that works with us. We really want to bring in people that are part of the team but that are just based somewhere else.

‍

When done right, both sides win: You get exceptional sales professionals at better rates, and LatAm talent gets competitive compensation plus opportunities to work with fast-growing US companies.

How AvantStay Added $20M in ARR With a LatAm Sales Team

When AvantStay's VP of Sales, Jake Breuner, was tasked with driving $20M in new ARR (a 30% year-over-year growth target), he needed to scale his team fast. His initial plan was to hire offshore, but concerns about quality, cultural fit, and whether remote sales reps could really perform made him hesitate.

What he found instead was a different model entirely: a dedicated LatAm sales team built through Near, working his hours, representing only his product, and ramping faster than he expected.

The result: $20M in new ARR added in 12 months. And more:

• Added $20M in ARR within 12 months
• Reduced new hire ramp time from 6 months to 2 months
• Cut attrition rate from 70% to 20%
• Achieved 65% cost savings compared to US hires

“Hiring from Latin America was our backup plan, now it's our primary plan.” 

— Jake Breuner, VP of Sales

Read the complete AvantStay case study to see exactly how they built a sales team that drives real revenue growth.

{{banner}}

Top 10 Sales Outsourcing Companies to Consider

The sales outsourcing market is crowded, and most providers look similar on paper. This list of the best outsourcing companies explains the differences so you can match the right model to your actual situation.

I only included companies with at least 50 verified client reviews at 4.5+ on G2, Clutch, Trustpilot, GoodFirms, or ClearlyRated, or a verifiable enterprise client track record. From there, I evaluated service models, specialization depth, supported roles, and pricing transparency.

The goal is to give you a solid shortlist, not to pick a winner. The right fit depends on your situation, and the best way to find it is through direct conversations with the providers on your list.

1. DMT Business Development

Website: dmtcorp.io 

Headquarters: Ottawa, Canada

Rating: 5.0/5 on Clutch (75+ reviews) as of April 2026

Services: Lead generation, appointment setting, SDR services, outbound email management

Focus Regions: North America

DMT Business Development earned a spot on this list through a combination of a perfect Clutch rating across 79 verified reviews and a focused, high-output approach to B2B appointment setting. 

The Canadian agency specializes in lead identification and appointment setting for SaaS, software development, recruitment, and biotech companies. Their teams handle everything from building ICP-matched prospect lists to managing email outreach infrastructure, delivering clients an average of 10 to 42 booked meetings per month. 

With over six years of experience in high-complexity B2B verticals and transparent, package-based pricing, DMT offers a structured entry point for companies that want consistent pipeline output without building an in-house SDR function.

Key features:

• ICP-led targeting and outreach: DMT builds prospect lists based on your Ideal Customer Profile, manages the full outreach process from email infrastructure setup to message sequencing, and provides real-time progress updates throughout each campaign.
• Appointment setting focus: The agency focuses on appointment setting and lead generation, consistently booking qualified meetings on behalf of clients. Clients receive call recordings and clear reporting, so pipeline quality can be verified directly.
• Package-based pricing model: Pricing is structured in tiers with defined deliverables per package, which makes it easier to set expectations and budget predictably from the start.

Best for: SaaS, software, biotech, and recruitment companies that want a defined number of qualified meetings per month without managing an internal SDR team.

Client perspective: “The first thing that came to mind was their expertise. It's clear that DMT Business Development knows what they're doing and why.” — Verified reviewer, Clutch

Limitations: Pricing details are not publicly listed beyond package tiers, and the model is best suited for outbound appointment setting rather than full-cycle sales management. For very large enterprise programs requiring significant scale, the team size may be a constraint.

2. Belkins

Website: belkins.io 

Headquarters: Global

Rating: 4.9/5 on Clutch (225+ reviews) as of April 2026

Services: B2B appointment setting, outbound lead generation, email outreach, LinkedIn outreach, cold calling

Focus Regions: Global

Belkins earned a place on this list with one of the strongest review profiles in the B2B appointment-setting category: 229 verified Clutch reviews at 4.9/5, ranked #5 on Clutch's 2025 Global 1000. 

The agency provides a dedicated team of researchers, copywriters, and outreach specialists who handle every layer of the prospecting process on behalf of clients, from ICP-matched list building to appointment booking. 

With a reported 95% client retention rate and documented delivery of 200,000+ appointments for nearly 1,000 clients, Belkins has a track record that holds up to scrutiny. They serve a wide range of B2B companies, from startups through Fortune 500 enterprises.

Key features:

• Omnichannel outbound model: Belkins runs integrated campaigns combining cold email, LinkedIn outreach, and phone outreach so prospects encounter the client's brand across multiple channels. Intent-based calling, which targets prospects after they show signals like email opens, improves connection rates and reduces wasted outreach.
• Full-team model: Clients get a dedicated team of researchers, copywriters, and outreach specialists rather than a single rep. This model distributes the workload across specialist functions, which means each component of the outreach campaign is owned by someone whose job is that specific task.
• Results at scale: Belkins reports delivering 100 to 400+ qualified appointments per year per client, 30+ monthly meetings on average, and an annual ROI of 599% for clients based on documented engagement data. Campaigns typically launch in around 14 business days.

Best for: SMBs and mid-market companies that want a fully managed outbound pipeline function with multi-channel coverage and dedicated specialist teams handling each component of the campaign.

Client perspective: “Their deliverability expertise made a difference, and campaigns performed better than we expected. We are satisfied with the collaboration. The team handled everything quickly and stayed flexible.” — Verified reviewer, Clutch

Limitations: Belkins' starting engagement typically runs $10,000+ per month, which puts it outside the range for early-stage companies with limited sales budgets. Pricing is not publicly listed; exact costs require a consultation. Best suited for companies that already have a defined ICP and can support follow-through on booked meetings.

3. Near

Website: hirewithnear.com

Headquarters: San Antonio, Texas

Rating: 4.9/5 on G2 (130+ reviews) as of April 2026

Services: Full-service nearshore staffing and recruiting, direct hire, RPO, staff augmentation, and executive search

Focus Regions: LatAm only

Near isn't an outsourcing company, but I think we offer something valuable. When you're evaluating sales outsourcing, consider this: Most agencies assign your company to shared sales reps who juggle multiple clients. That means split attention, surface-level product knowledge, and no long-term commitment to your growth.

Near helps you build your own dedicated sales team with experienced Latin American professionals who work exclusively for you, use your tools, and build the kind of institutional knowledge that shared-rep models never develop.

For example, in our experience, companies hiring LatAm SDRs save $20,000 to $48,000 per hire annually (30–70%) compared to US equivalents, and LatAm hires stay 66% longer.

We help you hire across your entire sales function, including:

• Inbound sales representative
• Outbound sales representative
• Sales development representative (SDR)
• Business development representative (BDR)
• Account executive
• Salesforce manager

If SDR pipeline development is your primary focus, read our detailed guide on hiring SDRs in Latin America for role-specific benchmarks and hiring criteria.

Key features:

• Elite talent for sales positions: We place BDRs, SDRs, Account Executives, and sales operations professionals every week, with specialist sales recruiters screening beyond resumes for real-world impact. Our recruiters understand pipeline metrics, CRM proficiency, and what it takes to consistently hit quota. As Lucia Atensia, Recruiter, Sales at Near explains: 

LatAm sales professionals are highly adaptable and familiar with international business practices. A lot of our candidates have already been working with US clients. They know the business, they know the markets. That makes them much easier to integrate into global teams.

‍

• Quality-first approach: Our 97% placement rate and 9.1+ client satisfaction score come from obsessing over the skills, the drive, readiness, and cultural match to contribute from day one. We screen for communication style, work ethic, and the hustle that helps sales professionals close deals in competitive environments.
• One partner, one process: Scale across functions with one dedicated team and a repeatable hiring cadence. First candidates in 3 to 5 days with video introductions, most hires in under 3 weeks. We remember what worked last time, and we adapt based on your feedback so hiring gets easier and more effective over time.
• 180-day replacement guarantee: Most staffing agencies offer 90 days. We offer 180. If a hire doesn't work out in the first six months, we find a replacement at no additional cost.

Best for: US companies that want dedicated LatAm sales professionals who work exclusively for them, not a shared-rep outsourcing model. Particularly strong for companies frustrated with offshore time zone misalignment or agency models where reps juggle multiple clients.

Client perspective: “Near not only helped us navigate the hiring process but fundamentally changed our approach to building our team. Their ability to connect us with high-quality, dedicated talent has been invaluable.” — Drew Prescott, Co-Founder & CEO at R\nd

Limitations: Near is a nearshore staffing and recruiting agency, not a traditional sales outsourcing provider. If you want a fully managed shared-rep outsourcing arrangement rather than hiring dedicated team members, another provider on this list will be a better fit. Near serves LatAm markets only.

4. SalesRoads

Website: salesroads.com

Headquarters: Boca Raton, Florida

Rating: 4.9/5 on Clutch (60+ reviews) as of April 2026

Services: B2B appointment setting, outbound lead generation, outsourced SDR programs

Focus Regions: US only

What stood out about SalesRoads is their narrow focus and long track record in exactly that focus: 17+ years of B2B appointment setting, entirely US-based, and entirely phone-first. 

Founded in 2007 in Boca Raton, Florida, the agency has set over 100,000 appointments across 500+ clients by building what they call “fit-to-purpose” outsourced SDR teams: Custom-built for each client's specific goals, then managed and coached on an ongoing basis. 

SalesRoads operates on month-to-month contracts with no long-term commitment, which makes them a practical option for companies that want to test outsourced outbound before committing to a larger program.

Key features:

• Phone-first methodology: SalesRoads centers their outreach on phone calls rather than email-first sequences, which fits well for high-complexity B2B categories like manufacturing, logistics, construction, and technology, where decision-makers often require a real conversation to engage.
• US-only team with month-to-month contracts: Every SDR is US-based and their month-to-month engagement is a flexibility that stands out in a category where many providers ask for 6- to 12-month minimums.
• Transparent reporting: Clients receive custom scripts, call recordings, and campaign-level reporting throughout each engagement, providing full visibility into what outreach looks like on their behalf.

Best for: Companies in complex B2B verticals (manufacturing, industrial SaaS, logistics, construction, technology, government) that want a proven phone-first SDR team on flexible terms.

Client perspective: "They have exceeded our goal of 100% ROI. Salesroads is hands down the best outsourced sales organization I have worked with.” — Verified reviewer, Clutch

Limitations: SalesRoads is a US-only operation, which is a significant consideration for companies wanting coverage in international markets. Their phone-first focus also means they aren’t set up for enterprise ABM campaigns or multi-channel programs that require heavy LinkedIn or paid media integration. 

5. Martal Group

Website: martal.ca 

Headquarters: Oakville, Ontario, Canada

Rating: 4.8/5 on Clutch (105+ reviews) as of April 2026

Services: AI-powered lead generation, appointment setting, outsourced inside sales, full-cycle sales outsourcing

Focus Regions: North America (serves US market from Canadian headquarters)

Martal Group caught my attention for their combination of scale, AI integration, and verified Clutch performance across a large review sample. 

Founded over 16 years ago, SalesRoads now operates a team of 200+ onshore sales professionals across North America, the EU, and Latin America, serving companies in 50+ verticals. In 2025, the agency ranked #91 on Financial Times' Americas' Fastest-Growing Companies list.

Their recent push to integrate AI into the outbound process, including an AI SDR platform for scaling the pipeline at higher volume, reflects how the agency has kept up with the changing B2B sales environment while keeping consistent client ratings.

Key features:

• AI-augmented outbound at scale: Martal combines human SDR execution with AI-driven intent data and real-time targeting to identify high-value prospects and personalize outreach across cold email, LinkedIn, and phone. Their “Sales-as-a-Service” model is designed for companies that want a fully managed outbound function they can scale without adding headcount.
• 50+ verticals, with deep B2B tech specialization: While Martal serves a broad range of industries, their deepest experience is in SaaS, cloud, AI, cybersecurity, and IT services, making them a strong fit for B2B tech companies with longer, more complex sales cycles.
• Fractional sales leadership included: Beyond SDR execution, Martal assigns fractional sales managers who oversee campaign strategy, coach the outbound team, and report directly to your leadership. For companies outsourcing sales without a dedicated internal sales leader, this means the management layer is covered without adding headcount.

Best for: B2B tech and SaaS companies that want a scalable, fully managed outbound function with AI-assisted targeting and multi-channel coverage, particularly those in North American markets.

Client perspective: “The most impressive part of working with Martal was their ability to get up to speed on our value proposition and market quickly. Their SDRs and campaign strategists felt like an extension of our team — not just a vendor executing tasks.”  — Verified reviewer, Clutch

Limitations: Martal is strongest in B2B tech verticals. Companies in non-tech industries may find the messaging frameworks require more customization.

6. Pearl Lemon Leads

Website: pearllemonleads.com 

Headquarters: London, UK (serves US and global clients)

Rating: 4.8/5 on Clutch (70+ reviews) as of April 2026

Services: B2B lead generation, appointment setting, cold outreach, LinkedIn lead generation

Focus Regions: UK and Global

I included Pearl Lemon Leads on the best sales outsourcing list because of their verified Clutch performance and their emphasis on multi-channel outbound with direct CRM integration. 

Part of Pearl Lemon Group, the agency specializes in B2B appointment setting and cold outreach across email, LinkedIn, and phone, with campaigns designed specifically around each client's product and value proposition. 

Their reported performance data shows that 72% of clients see three times more replies within 45 days, and their workflow integrations with Salesforce, HubSpot, Pipedrive, and Zoho connect appointment data directly into client CRMs.

Key features:

• Multi-channel outreach with CRM sync: Pearl Lemon Leads runs cold email, LinkedIn outreach, and calling in parallel, with all appointment data flowing into the client's existing CRM in real time. No-show rates for their clients have been reduced by up to 34% for teams using their system-integrated workflows.
• Performance-driven messaging: Their outreach copy is tested and rewritten based on reply and conversion data throughout each campaign. On average, 1 in 4 replies converts to a meeting, and the agency tracks this conversion rate at the campaign level.
• B2B appointment-setting focus: Pearl Lemon Leads focuses on setting qualified meetings directly with decision-makers, handling initial outreach and qualification so client sales teams spend time closing rather than prospecting.

Best for: B2B companies that want multi-channel outbound (email, LinkedIn, phone) with direct CRM integration and a results-oriented approach to qualifying meetings before handoff.

Client perspective: “They've been great at managing our expectations and meeting the deadline. They put in a lot of due diligence- checking if the project is working smoothly. They have good communication and never fail to update us.” — Verified reviewer, Clutch

Limitations: Pearl Lemon Leads operates as part of a broader group (Pearl Lemon Group), so clients should clarify the specific team and focus area when engaging. UK-based operations may be a fit consideration for US companies that prefer domestic account management.

7. memoryBlue

Website: memoryblue.com 

Headquarters: Tysons, Virginia

Rating: 4.6/5 on G2 (300+ reviews) as of April 2026

Services: Outsourced SDR and AE teams, sales development, sales training, recruiting, marketing services

Focus Regions: Global

I chose memoryBlue for the list based on their depth of verified review data and their track record in a specific category: B2B tech and cybersecurity sales development. 

Founded in 2002 and ranked #1 among outsourced sales providers on G2 across 302 verified reviews, the agency has built outsourced SDR operations for tech companies for over two decades. Following its 2023 acquisition of Operatix, memoryBlue now operates six offices globally, supports 30+ languages, and fields a team of 600+ dedicated sales professionals. 

In 2025, the company reported 12% year-over-year growth in SDaaS revenues, 23% improved client retention, and 38% growth in lifetime customer revenue.

Key features:

• SMART framework: memoryBlue packages its services under a SMART model: Sales (outsourced SDR and AE teams), Marketing (demand generation), Academy (sales training), Recruiting (talent acquisition), and Technology (sales tech stack support). This framework means clients can engage for SDR services alone or layer in adjacent support as their needs evolve.
• Scale and global coverage: With 600+ professionals across six offices and support for 30+ languages, memoryBlue is one of the larger dedicated outsourced sales development operations in the market. In 2025, the agency generated more than 50,000 qualified meetings for clients globally.
• Tech and cybersecurity specialization: memoryBlue's core client base is B2B technology and cybersecurity companies, which means their SDR teams are trained on the language, sales cycles, and buyer profiles specific to those verticals.

Best for: B2B tech and cybersecurity companies that need outsourced SDR capacity at scale, with the option to add sales training, marketing, or recruiting services under the same provider.

Client perspective: “I really appreciate how memoryBlue made an instant positive impact on our field sellers with their speed to market and high-volume outbound sales activity. The professionalism and production of their campaign were impressive.”  — Verified reviewer, G2

Limitations: memoryBlue's deepest strength is B2B tech and cybersecurity. Companies outside these verticals may find the team's native knowledge base requires additional context. The SMART platform adds meaningful infrastructure, but early-stage companies running smaller campaigns may not need that level of complexity.

8. Callbox

Callbox

Website: callboxinc.com 

Headquarters: Encino, California (delivery hubs in the Philippines)

Rating: 4.6/5 on Clutch (115+ reviews) as of April 2026

Services: Multi-channel B2B lead generation, appointment setting, account-based marketing, event promotion, market entry support

Focus Regions: Global

Callbox made this list because of their multi-channel reach and documented enterprise client relationships in competitive B2B verticals. 

Founded in 2004, the company is one of the largest outsourced B2B marketing and lead generation providers globally, with delivery hubs in the Philippines and offices across the US, Australia, Singapore, and Malaysia. 

Their Smart Engage platform connects CRM data, automation, and analytics to coordinate outreach across phone, email, social, and direct mail channels, supporting enterprise clients including Microsoft and Google.

Key features:

• Multi-channel outbound at enterprise scale: Callbox runs integrated campaigns across phone, email, LinkedIn, social, and direct mail, coordinated through their proprietary Smart Engage platform. This surround-sound approach is built for complex sales cycles that require multiple touchpoints across multiple channels to engage senior decision-makers.
• Industry specialization in competitive verticals: Callbox has documented experience serving technology and healthcare companies, including enterprise-level clients. They’ve earned 14 Clutch awards across healthcare, IT, and financial services categories.
• Global delivery: With hubs in the Philippines and offices across the US and Asia-Pacific, Callbox can execute campaigns simultaneously across North America, APAC, EMEA, and Latin America.

Best for: Enterprise tech and healthcare companies that need multi-channel B2B lead generation at scale, with global delivery capability and a track record in complex, long-cycle sales environments.

Client perspective: “They consistently delivered items on time and demonstrated flexibility in accommodating changes. Their team promptly addressed our needs, ensuring clear and open communication throughout the project.” — Verified reviewer, Clutch

Limitations: Callbox's delivery model relies heavily on Philippines-based teams, which may be a fit consideration for companies that want US-based reps or real-time collaboration with local cultural context. Their model is built for enterprise-scale campaigns, which may mean higher minimum engagements than smaller companies need.

9. UnboundB2B

Website: unboundb2b.com 

Headquarters: San Jose, California

Rating: Enterprise clients include Cisco, Google Cloud, and Dell (no verified third-party review platform meets threshold)

Services: Account-based marketing, demand generation, content syndication, intent-based marketing, appointment setting, SDR-as-a-service, brand strategy

Focus Regions: Global

UnboundB2B is included on this list because of their verifiable client roster rather than third-party review platform ratings. Their clients include Cisco, Google Cloud, and Dell Technologies, which reflects a level of enterprise procurement validation that carries independent weight. 

The company operates as a “brand-to-demand growth partner” rather than a traditional lead generation agency, integrating brand strategy, content, media, and sales activation into one proprietary performance framework called BrandGen (designed to connect brand awareness directly to lead conversion and pipeline results).

Unlike most providers on this list, whose primary output is booked meetings, UnboundB2B is positioned upstream: Building market awareness, driving intent, and delivering sales-ready demand at the bottom of that pipeline.

Key features:

• Full-funnel demand generation: UnboundB2B runs programs across the entire B2B demand curve, from account-based brand building and content syndication through intent-driven targeting, lead qualification, and SDR-as-a-service handoff.
• Global audience reach: UnboundB2B provides access to 100M+ verified B2B decision-makers for precise audience targeting across global markets.
• AI-driven intent targeting: The company uses AI to identify buyers showing active purchase intent signals and delivers those accounts to clients at the moment they are most engaged, reducing wasted outreach.

Best for: Mid-market to enterprise B2B technology companies that want a demand generation partner integrating brand, content, and sales activation, particularly those with longer buying cycles and accounts that involve multiple decision-makers.

Client perspective: “UnboundB2B is a true partner that genuinely cares about our success.” — Ron Samuels, Demand Generation Strategist, Dell Technologies

Limitations: Their integrated brand-to-demand model is a significant scope expansion compared to pure appointment setting providers. Not the right fit for companies wanting a simple, transactional SDR-as-a-service engagement.

10. The Sales Factory

Website: thesalesfactory.com 

Headquarters: Canada

Rating: 4.5/5 on G2 (75+ reviews) as of April 2026

Services: SDR and BDR services, GTM engineering, GTM team building, go-to-market strategy

Focus Regions: North America

The Sales Factory earned a place on this list because of their G2 category leadership in outsourced sales and the clarity of their model. 

Recognized as a G2 Leader in Outsourced Sales and Lead Generation across multiple consecutive quarters, and ranked as the 11th fastest-growing company in Canada in 2024, The Sales Factory runs a human-led, AI-augmented SDR and BDR operation built around a documented outbound playbook. 

Their model is designed to function as a turnkey outsourced GTM team rather than a single-service lead gen vendor.

Key features:

• Human-led AI-augmented model: The Sales Factory combines human SDR and BDR execution with AI tools to accelerate list building, personalize messaging, and track performance. Clients report that The Sales Factory reduced their time to book qualified meetings by over 50% compared to prior outbound processes.
• Full GTM build, not just outbound: Beyond SDR/BDR execution, The Sales Factory builds the outbound playbook with the client, including ICP definition, persona mapping, strategic messaging frameworks, and prospect list construction. This makes them a stronger fit for companies that need the infrastructure.
• Dedicated rep model: Each client is assigned a dedicated SDR or BDR who works exclusively on their account, rather than a shared pool of reps splitting attention across multiple clients. This means your rep builds genuine product knowledge and develops a consistent outbound voice that reflects your brand over time.

Best for: Companies that want a full-service outsourced GTM partner to build and run their outbound engine, including strategy and playbook development alongside SDR/BDR execution.

Client perspective: “Their services have significantly improved our speed to lead and overall conversion rate, reducing the time by over 50%, and in some cases, they're at least 60% faster in booking meetings with qualified leads than our previous processes.” — Verified reviewer, G2

Limitations: Their Canadian-headquartered team model may be a fit consideration for US companies wanting domestic account management. Full-cycle sales execution isn’t their primary scope.

Final Thoughts

No comparison article can tell you which of the best sales outsourcing companies is right for your situation. That depends on your product, your sales cycle, your ICP, and whether you want a managed outsourcing relationship or a dedicated team you build and own.

The distinction is worth thinking through. Most providers on this list run shared-rep or managed SDR programs where their team works across multiple client accounts simultaneously. Near is different: We help you hire dedicated LatAm sales professionals who work exclusively for you. Same cost profile, different model, different long-term outcome.

A 20-minute call is enough time to walk through your requirements, share salary benchmarks for the roles you need, and give you a straight answer on whether our model or another option on this list fits your situation better.

Schedule a free, no-commitment recruiting call today, or learn more about building dedicated sales teams with Latin American talent.