Best Sales Outsourcing Companies for B2B Growth in 2026

According to Grand View Research’s 2025 analysis, the global sales outsourcing market is on track to nearly double from $28.65 billion in 2022 to $57.46 billion by 2030, growing at a 9.4% compound annual rate. That trajectory tells you something important: outsourcing sales functions is no longer a stopgap measure for companies that can’t afford full-time reps. It has become a deliberate growth strategy. The question isn’t whether to outsource, but which sales outsourcing company can actually execute. The landscape is crowded with providers claiming they’ll fill your pipeline fast. Most focus on top-of-funnel activity. Some cover the full cycle. A few genuinely understand your industry well enough to represent your brand credibly in front of executive buyers. This guide compares 10 leading sales outsourcing companies to help you find the right fit for your revenue goals, team structure, and budget.

Top 10 Best Sales Outsourcing Companies for 2026: Comparison

Top 10 Best Sales Outsourcing Companies: Overview

#1 Helpware

Full-service BPO partner with 19 global locations delivering outbound sales support, lead generation, and customer success across regulated industries

Helpware is a global BPO provider headquartered in Lexington, Kentucky, offering outbound and inbound sales support as part of a broader suite of customer experience operations. Founded in 2015, the company has grown to 4,000 team members across 19 locations on four continents, supporting more than 400 clients in industries ranging from telehealth and SaaS to fintech and ecommerce. What makes Helpware a distinctive option in the sales outsourcing space is the operational depth behind every engagement: dedicated teams that don’t rotate, multilingual capability across 45+ languages, and compliance certifications, including SOC 2, HIPAA, and GDPR, that matter when you’re selling into regulated verticals. Looking for a reliable inbound and outbound call center partner that combines sales execution with customer success? Helpware is structured to handle both sides of the revenue equation.

The company’s operational metrics reflect a genuine commitment to retention and quality. A 2.8% monthly attrition rate, compared to the 6-8% industry average, means your outsourced team develops real institutional knowledge of your product and buyers over time. Clients average 5-year partnerships, which is rare in an industry where vendor churn is common.

Why we picked it

Recognized by Clutch as a top BPO provider, Helpware has demonstrated the operational maturity to support complex sales environments, not just volume prospecting. Its healthcare vertical depth and compliance infrastructure give it a credible edge for companies selling into enterprise accounts where data handling requirements eliminate most vendors.

• Services offered: Outbound sales support (calls, email, multi-channel), inbound sales and qualification, appointment setting, lead generation, customer success management, CX consulting, back-office operations, data operations.
• Pros: 45+ languages with native-speaker model; 19 global offices enabling 24/7 coverage; 2.8% monthly attrition vs. 6-8% industry average; SOC 2, HIPAA, GDPR, PCI-DSS certified; 5-year average client partnerships; 90% CSAT; industry-specific playbooks for healthcare, fintech, SaaS, and ecommerce.
• Cons: Consultative onboarding usually takes more time than plug-and-play SDR solutions, and it can feel like overkill for early-stage companies that only need simple top-of-funnel support.
• Industry expertise: Healthcare and telehealth, SaaS and software, ecommerce and retail, fintech and banking, gaming and entertainment, logistics, and public sector.
• Best for: Mid-market to enterprise companies ($50M-$500M revenue) that need sales support integrated with customer success and compliance-ready operations, particularly in regulated industries.
• Pricing: Starting at $8-$15 per hour, depending on service complexity, location, and engagement model.
• Rating: 4.8 stars (Clutch)
• Year established: 2015
• Location: Lexington, Kentucky (HQ); USA, Mexico, Philippines, Ukraine, Georgia, Puerto Rico, Poland, Germany, Albania, Uganda.

#2 Belkins

Appointment-setting specialist with a track record of 300,000+ meetings booked and a proprietary email deliverability platform

Belkins has built a strong reputation as an outbound appointment-setting firm since its founding in 2017, primarily serving SaaS, consulting, healthcare, financial services, and tech companies. The company operates with a core team of 201-300 professionals based largely in Kyiv, Ukraine, with US legal headquarters in Dover, Delaware. Their approach centers on cold email and LinkedIn outreach, backed by a research-driven targeting process that prioritizes account fit before any outreach begins.

What separates Belkins from many outbound firms is its investment in deliverability infrastructure. The company built Folderly, a standalone email deliverability platform, to address a problem that plagues most cold outreach programs: messages landing in spam. That technical focus translates into measurably higher open rates and more consistent meeting volumes for clients.

Why we picked it

Belkins has worked with 2,000+ clients across 50+ industries and maintains a 95% client retention rate, which is about as close to proof of consistent delivery as you’ll find in this space. Recognized as the #1 B2B lead generation company on Clutch multiple years running, the firm has earned a credible reputation among growth-stage tech companies that need predictable meeting volume quickly.

• Services offered: Appointment setting, outbound cold email campaigns, LinkedIn lead generation, lead research and list building, outsourced SDR programs, email deliverability consulting (Folderly).
• Pros: 300,000+ appointments set across client history; 95% client retention; Folderly deliverability platform addresses a common pain point; 50+ industry verticals covered; strong track record with SaaS and B2B services companies.
• Cons: Primarily top-of-funnel focus; full-cycle sales execution is outside their core model; best fit for companies with strong closing teams in place.
• Industry expertise: SaaS, IT consulting, healthcare, financial services, IoT, blockchain, professional services.
• Best for: Growth-stage to mid-market B2B companies that need a reliable pipeline of qualified meetings and have internal AEs to handle discovery and closing.
• Pricing: Custom pricing based on outreach scope and volume. Contact vendor for quotes.
• Rating: 4.9 stars (Clutch)
• Year established: 2017
• Location: Dover, Delaware (HQ); core operations in Kyiv, Ukraine

#3 CIENCE Technologies

People-as-a-Service model combining AI-powered prospecting tools with dedicated SDR teams across six countries

CIENCE Technologies operates at an unusual intersection for this category: it functions as both a services company and a technology provider. Founded in 2015 and headquartered in Denver, Colorado, the company has grown to 1,102 employees across the USA, Mexico, Brazil, Ukraine, Germany, and the Philippines. Its proprietary CIENCE GO platform handles data enrichment, campaign orchestration, and pipeline visibility, while dedicated human SDRs execute outreach under a People-as-a-Service model that aims to make outsourced sales development feel like an embedded team rather than a vendor handoff.

With 2,500+ clients ranging from seed-stage startups to Fortune 500 companies, CIENCE has enough cross-industry volume to develop refined playbooks across verticals. The range of services is broader than most competitors, covering both inbound qualification and outbound prospecting, along with CRM migration support that helps clients extract clean data from the engagement.

Why we picked it

CIENCE earned recognition as a Major Contender on Everest Group’s B2B Sales Services PEAK Matrix 2024, which reflects institutional validation beyond review aggregators. The company’s ability to handle both top-of-funnel and mid-funnel activity, combined with its technology platform, suits companies that want more than a meeting-booking service.

• Services offered: Outbound SDR programs, inbound lead qualification, appointment setting, lead research and list building, data enrichment, CRM migration, sales consulting, and account-based marketing support.
• Pros: 2,500+ clients across company sizes and sectors; proprietary CIENCE GO platform; 10 languages supported; strong inbound/outbound hybrid capability; Everest Group PEAK Matrix recognition.
• Cons: Large client roster can mean less individualized attention; technology-first approach may feel impersonal for companies seeking a more advisory engagement.
• Industry expertise: SaaS, technology, cybersecurity, healthcare, financial services, manufacturing, professional services.
• Best for: Mid-market companies that want SDR outsourcing combined with proprietary sales intelligence tools and data infrastructure.
• Pricing: Typically $4,200-$9,000/month depending on scope; ranges up to $50,000 for enterprise engagements.
• Rating: 4.7 stars (Clutch)
• Year established: 2015
• Location: Denver, Colorado (HQ); also Irvine, CA, and Miami, FL; operations in Mexico, Brazil, Ukraine, Germany, Philippines

#4 Callbox

Multi-channel B2B lead generation firm with over 10,000 campaigns executed since 2004 and a proprietary AI engagement platform

Callbox has been running B2B sales outsourcing programs since 2004, making it one of the more tenured providers in this comparison. Headquartered in Encino, California, with primary operations in the Philippines and additional offices in Australia, Singapore, and Malaysia, the company serves technology, SaaS, cybersecurity, fintech, healthcare tech, and manufacturing clients. The firm fields a team of 700+ marketing and sales professionals and has executed more than 10,000 campaigns across its history.

What distinguishes Callbox from straightforward cold-calling shops is its SMART Engage AI platform, which manages contact data, sequences, and engagement tracking across phone, email, LinkedIn, social media, and web channels simultaneously. That multi-channel orchestration is a genuine operational advantage for campaigns targeting enterprise accounts where a single-channel approach rarely reaches key decision-makers reliably.

Why we picked it

Callbox’s combination of longevity, geographic scale in APAC, and technology infrastructure makes it a strong consideration for companies targeting international markets or running account-based programs that require coordinated touches across multiple channels and contacts within the same organization.

• Services offered: Multi-channel lead generation, appointment setting, outsourced SDR programs, account-based marketing support, event marketing, webinar registration campaigns, and database management.
• Pros: 22 years of B2B campaign experience; SMART Engage AI platform for multi-channel orchestration; strong APAC presence for companies targeting Asia-Pacific markets; 10,000+ campaigns executed.
• Cons: Primary delivery hub in the Philippines may introduce time-zone friction for US-only campaigns requiring real-time responsiveness; pricing is less transparent than some competitors.
• Industry expertise: IT and software, SaaS, cybersecurity, fintech, healthcare technology, manufacturing, logistics.
• Best for: Mid-market to enterprise companies running account-based programs or targeting APAC markets alongside North American expansion.
• Pricing: Custom pricing based on campaign scope. Contact the vendor for quotes.
• Rating: 4.7 stars (Clutch)
• Year established: 2004
• Location: Encino, California (HQ); Philippines, Australia, Singapore, Malaysia

#5 Martal Group

North American onshore SDR model focused on B2B tech and SaaS companies, with 2,000+ clients across 50+ verticals

Martal Group takes a different geographic bet than most firms in this category. Rather than offshoring SDR work to reduce cost, the company, founded in 200,9 operates primarily with onshore North American and European sales representatives, targeting B2B technology and SaaS companies that sell into enterprise accounts where buyer skepticism about overseas call centers is a real consideration. Headquartered in Oakville, Ontario, with offices in San Francisco and a presence across Europe and Latin America, Martal serves 2,000+ clients across 50+ verticals.

The company grew 922% over a three-year period, enough to rank as Canada’s 43rd fastest-growing company according to The Globe and Mail. That growth trajectory reflects demand for its onshore model, and the firm has recently invested in a proprietary AI SDR platform that handles initial outreach sequencing while human reps manage live conversations and relationship development.

Why we picked it

Martal Group holds a Global Leader designation from Clutch for Spring 2024 and has been ranked among the top three sales outsourcing firms worldwide on that platform. For tech companies selling into North American enterprise accounts, the onshore team model is a legitimate differentiator.

• Services offered: B2B lead generation, appointment setting, outbound marketing, customer onboarding support, account management, AI-assisted prospecting.
• Pros: Onshore North American and European SDR teams; 922% three-year revenue growth; 2,000+ client track record; Clutch Global Leader designation; AI SDR platform for sequencing automation.
• Cons: Smaller team size (74-85 employees) may limit capacity for high-volume programs; retainer pricing starts around $5,000/month, which is above entry-level options.
• Industry expertise: B2B technology, SaaS, software, IT services, professional services, fintech.
• Best for: Tech and SaaS companies targeting North American enterprise accounts that prefer onshore sales representatives for buyer credibility.
• Pricing: Retainer-based, typically starting around $5,000/month. Contact the vendor for custom quotes.
• Rating: 4.9 stars (Clutch)
• Year established: 2009
• Location: Oakville, Ontario, Canada (HQ); San Francisco, CA; additional presence in Europe and LATAM.

#6 SalesRoads

US-based boutique appointment-setting firm with a 17-year track record, 500+ clients, and a fully remote team of primarily military spouses

SalesRoads is a smaller, deliberately boutique firm that has operated in the B2B appointment-setting space since 2007. Headquartered in Boca Raton, Florida, the company runs a fully remote team of approximately 50 professionals, with a distinctive recruitment model that prioritizes military spouses. That workforce composition reflects an intentional commitment to employee stability and retention, which translates into lower rep turnover and more consistent client experiences.

The firm’s approach emphasizes human-to-human outbound: phone-first, no LinkedIn automation, no mass email sequences. That philosophy suits industries where buyers are skeptical of templated outreach and respond better to personalized, conversational prospecting.

Why we picked it

With 100,000+ appointments set across 500+ clients and flexible month-to-month contracts starting as low as $250/month, SalesRoads is worth evaluating for mid-market companies in industrial, logistics, or manufacturing tech that need US-based reps with a disciplined phone-first methodology.

• Services offered: B2B appointment setting, outbound lead generation, outsourced SDR programs.
• Pros: 17+ years of focused appointment-setting experience; 100% US-based remote team; month-to-month contracts with no long-term commitment; flexible pricing starting at $250/month; strong phone-first methodology.
• Cons: Small team limits capacity for large-scale programs; no LinkedIn or multi-channel capability; not suited for enterprise-level ABM campaigns.
• Industry expertise: SaaS, manufacturing technology, industrial SaaS, logistics, construction, transportation, state and local government.
• Best for: SMB to mid-market companies that need US-based appointment setting with flexible engagement terms and a preference for phone-first outreach.
• Pricing: $250-$5,000/month on month-to-month contracts.
• Rating: 4.9 stars (G2)
• Year established: 2007
• Location: Boca Raton, Florida (HQ); fully remote.

#7 memoryBlue

Enterprise tech SDR specialist formed by the 2023 merger of memoryBlue (est. 2002) and Operatix (est. 2012), covering four global regions with 650+ professionals

The July 2023 merger of memoryBlue and Operatix created one of the largest dedicated sales development firms in the market, combining memoryBlue’s two-decade US presence with Operatix’s established EMEA and APAC reach. The combined entity fields 650+ sales professionals across nine offices in North America, Europe, Asia-Pacific, and Latin America. Operating in 20+ languages, the firm serves B2B software vendors from early-stage startups through Fortune 500 accounts, with clients including Google, Adobe, and Oracle.

Beyond SDR execution, memoryBlue runs a formal sales development Academy that trains and certifies reps, which feeds both client programs and a direct hire placement service for companies that want to convert outsourced SDRs into full-time employees. That hire-to-train pipeline is a structural differentiator for companies thinking beyond the immediate campaign.

Why we picked it

For enterprise B2B technology vendors with global ambitions, the combined memoryBlue/Operatix footprint delivers genuine regional coverage rather than centralized offshore delivery. The Academy and direct hire models add long-term workforce value that most competitors don’t offer.

• Services offered: Outsourced SDR programs, sales development, channel partner acceleration, sales training (Academy), direct hire recruiting, marketing support.
• Pros: 650+ professionals across 9 global offices; 20+ languages; direct hire pipeline via Academy; proven with enterprise tech clients (Google, Adobe, Oracle); strong EMEA and APAC coverage through Operatix heritage.
• Cons: Enterprise and tech-sector focus limits relevance for non-tech B2B companies; pricing reflects enterprise-grade positioning.
• Industry expertise: Enterprise software, cybersecurity, cloud computing, data management, marketing technology, fintech.
• Best for: B2B software vendors targeting enterprise accounts globally who want SDR programs with the option to hire proven reps directly.
• Pricing: Custom pricing for enterprise engagements. Contact the vendor for quotes.
• Rating: 4.8 stars (Clutch)
• Year established: 2002 (memoryBlue); combined entity formed 2023.
• Location: Tysons, Virginia (HQ); 9 offices across USA, UK, Germany, Australia, and additional LATAM presence.

#8 EBQ

Full-cycle sales outsourcing firm for software and tech companies, with month-to-month contracts and Salesforce/HubSpot implementation expertise

EBQ, legally EB Quickstart LLC, has operated in the B2B sales outsourcing space since 2006 and focuses almost exclusively on software and technology companies. Headquartered in Austin, Texas, the company has grown to approximately 379 employees and operates across North America, South America, and Europe. In 2024, EBQ acquired Acquirent, a firm with its own history including the LeadJen and Vorsight brands, which expanded the company’s scale and methodology depth.

Where EBQ differentiates from SDR-only firms is coverage of the entire buyer journey: CRM support, data management, marketing, appointment setting, sales execution, and customer experience all fall under the same managed service. Month-to-month contracts with no setup fees and 15-day scaling notice give clients operational flexibility that longer-commitment providers don’t offer.

Why we picked it

EBQ is particularly well-suited for software companies that need to build or clean their CRM infrastructure alongside scaling outbound, since the firm’s Salesforce and HubSpot expertise means the same partner handles both the tooling and the execution.

• Services offered: Full-cycle sales outsourcing, CRM implementation and support (Salesforce, HubSpot), B2B data management, marketing execution, appointment setting, sales development, customer experience.
• Pros: End-to-end buyer journey coverage; month-to-month contracts with no setup fees; CRM expertise integrated with sales execution; acquired Acquirent’s methodology and client base; flexible scaling on 15-day notice.
• Cons: Software-sector focus limits fit for non-tech B2B categories; full-cycle pricing ($2,500-$200,000) spans a wide range and requires careful scoping.
• Industry expertise: Software, SaaS, technology, IT services.
• Best for: Software and tech companies that want integrated CRM management and full-cycle sales outsourcing under one contract.
• Pricing: $2,500-$200,000 depending on scope. Month-to-month contracts.
• Year established: 2006
• Location: Austin, Texas (HQ); operations in North America, South America, and Europe.

#9 Revnew

Account-based SDR firm specializing in enterprise technology and SaaS, with proprietary calling and email deliverability tools

Revnew positions itself specifically around enterprise technology and SaaS account-based sales development. Two proprietary tools define the firm’s technical differentiation: TeleIntent, a calling solution designed to identify genuine buying intent from conversation patterns, and Land Inbox, an email platform that achieves an 87% inbox placement rate. The combination targets a common failure mode in outbound: high activity, low results because messaging reaches spam or hits prospects who aren’t genuinely evaluating.

The firm’s philosophy extends beyond immediate pipeline generation to long-cycle nurturing, explicitly aiming to influence the 95% of target accounts that aren’t ready to buy in any given quarter.

Why we picked it

For enterprise tech companies running ABM programs where long sales cycles require persistent, multi-touch engagement over 6-18 months, Revnew’s intent-based approach and nurturing framework address challenges that meeting-booking services aren’t designed to solve.

• Services offered: Outsourced SDR programs, LinkedIn outreach, email outreach, content syndication, demand generation, webinar promotion, multi-channel nurturing.
• Pros: Proprietary TeleIntent and Land Inbox platforms; 87% inbox placement rate; account-based methodology; long-cycle nurturing capability for enterprise programs; competitive pricing around $2,900/month.
• Cons: Focused on enterprise tech; limited track record visibility compared to larger firms; client review volume is smaller than category leaders.
• Industry expertise: Enterprise technology, SaaS, B2B software.
• Best for: Enterprise tech and SaaS companies running ABM programs targeting 6-18 month sales cycles who need multi-touch nurturing beyond initial meeting generation.
• Pricing: Approximately $2,900/month. Contact the vendor for custom quotes.
• Year established: Not publicly disclosed
• Location: USA

#10 UnboundB2B

Intent-based demand generation company combining account-based marketing with content syndication for B2B pipeline acceleration

UnboundB2B operates at the intersection of demand generation and sales outsourcing, focusing on intent signals and account-based marketing rather than cold outbound alone. With offices in the USA and India, the firm targets B2B marketers and sales teams that want to shorten sales cycles by reaching buyers already displaying purchase intent. Their end-to-end approach covers audience targeting, content syndication, lead qualification, and handoff to internal sales teams.

The firm’s methodology suits organizations that want to generate an inbound-qualified pipeline from targeted outbound content, rather than traditional cold prospecting. That distinction matters for companies whose buyers respond better to content-led nurturing than direct cold outreach.

Why we picked it

UnboundB2B brings a differentiated demand generation perspective to sales outsourcing that few competitors in this list offer. For B2B marketers who want a pipeline influenced by intent data and content engagement rather than volume cold-calling, it fills a specific and underserved need.

• Services offered: Account-based marketing, intent-based lead generation, demand generation, content syndication, lead qualification, B2B data services.
• Pros: Intent data-driven targeting; strong content syndication network; ABM methodology reduces wasted outreach on unqualified accounts; combines marketing and sales development.
• Cons: Less suited for companies that need pure SDR execution or phone-first outreach; intent data quality varies by industry and geography.
• Industry expertise: Technology, SaaS, cloud computing, cybersecurity, fintech, marketing technology.
• Best for: B2B marketing and sales teams that want to generate an intent-qualified pipeline through content syndication and ABM rather than cold outbound programs.
• Pricing: Custom pricing based on campaign scope. Contact the vendor for quotes.
• Year established: Not publicly disclosed
• Location: USA and India

Helpware Takes the Top Spot

Among the ten companies reviewed here, Helpware stands out for a specific type of buyer: mid-market to enterprise companies that need sales support integrated with customer success and compliance infrastructure, not just a team booking discovery calls. Where most firms in this list operate as pure-play SDR or appointment-setting shops, Helpware’s BPO model means your outsourced sales function sits alongside technical support, back-office operations, and CX consulting, all managed by the same team with shared institutional knowledge of your product and customers.

The operational metrics are credible and specific: 90% CSAT, a 2.8% monthly attrition rate, and 5-year average client partnerships that reflect something most SDR firms can’t demonstrate, which is long-term delivery at scale. When you’re selling into healthcare, fintech, or other regulated sectors, the SOC 2, HIPAA, and GDPR certifications remove a procurement obstacle that eliminates most competitors automatically.

Helpware’s pricing runs higher than offshore-only outbound shops, and the consultative onboarding process takes longer than plug-and-play SDR programs. For companies that view sales outsourcing as a short-term top-of-funnel fix, there are cheaper options on this list. For companies treating it as a strategic revenue infrastructure decision, the partnership model and compliance depth are worth the investment.

How to Choose a Sales Outsourcing Company

Choosing between dedicated SDR shops, full-cycle providers, and BPO partners comes down to what part of your revenue motion needs the most support.

If your internal team closes well but can’t build enough pipeline, a focused appointment-setting firm like Belkins or SalesRoads delivers faster time-to-value. If your CRM is a mess and you need simultaneous data, prospecting, and sales execution, a full-cycle provider like EBQ reduces handoff friction. If you’re selling into enterprise accounts with long cycles and complex buying committees, memoryBlue or Revnew brings account-based methodology and enterprise-sector credibility. And if compliance, regulatory certification, and customer success integration matter as much as pipeline volume, a BPO partner like Helpware is worth the longer evaluation process.

Before you sign any contract, ask about rep attrition rates within the team assigned to your account, how performance is measured beyond meeting volume, and whether you retain ownership of the data and contact lists built during the engagement. Those three questions tend to reveal more about operational quality than any pitch deck.

Final Thoughts

The sales outsourcing market will keep growing as companies face pressure to generate a pipeline without scaling fixed headcount. That demand has produced a wide range of providers, from boutique phone-first appointment setters to technology-enabled platforms running multi-channel ABM programs at enterprise scale. The right choice isn’t the one with the most impressive client logos or the lowest monthly rate. It’s the one whose operating model, industry experience, and sales methodology align with how your buyers actually purchase. Take the time to evaluate rep quality, attrition data, and contract flexibility before committing, and treat the first 90 days as a structured test, not a passive wait for results.