16 Best B2B Sales Outsourcing Companies in 2026

Last Refreshed: March 2026. Updated company rankings and Quincy Berg’s practical framework for evaluating B2B sales outsourcing partners.

The best B2B sales outsourcing companies for 2026 are CIENCE, Belkins, Martal Group, SalesRoads, Callbox, and Operatix. We evaluated 40+ providers on SDR quality, multi-channel capabilities, pricing transparency, technology stack, and verified client reviews to rank the top 16. CIENCE leads the list for its proprietary data platform, 2,500+ client track record across 195 industries, and hybrid human + AI outreach model.

B2B sales outsourcing is the practice of hiring a specialized external company to handle part or all of your sales development process — including prospecting, lead qualification, appointment setting, and pipeline management. Global spending on outsourced sales teams is projected to reach $905 billion by 2027. Typical costs range from $3,000–$15,000/month, roughly one-third the cost of hiring equivalent in-house SDRs.

From Quincy Berg, SDR Operations Lead at CIENCE: The question I get most often is: “How do we know if outsourcing is right for us?” The answer depends less on company size and more on internal readiness. If you don’t have a solid ICP, clean CRM data, and AEs ready to close qualified meetings — outsourcing will accelerate your existing problems, not solve them. If you do have those foundations, outsourcing your SDR function is one of the fastest ways to scale pipeline without full-time hire overhead.

Quick Comparison: Top 5 B2B Sales Outsourcing Companies

Company	Best For	Channels	Starting Price	G2 Rating
CIENCE	Full-service, any industry	Email, phone, direct mail, LinkedIn	$5K setup + $2,499/mo	4.6/5
Belkins	SMB appointment setting	Email, LinkedIn	$5,000/mo	4.7/5
Martal Group	SaaS & tech companies	Email, phone, multilingual	$3,000-$10,000/mo	4.6/5
SalesRoads	Enterprise high-volume	Phone, email	Custom	4.8/5
Callbox	Multi-channel automation	Email, phone, social, chat	$2,500/mo	4.4/5

Top 16 B2B Sales Outsourcing Agencies [by Categories]

Below, each company is categorized by specialization with detailed overviews, key features, pricing, and verified client reviews.

Full-Service Sales Outsourcing Providers

These companies offer comprehensive B2B outsourcing solutions, handling everything from lead generation to closing deals.

1. CIENCE

CIENCE is a leading provider of B2B sales outsourcing services, combining advanced technology and expert human resources to deliver unmatched results. With a focus on outbound and inbound sales development, CIENCE specializes in generating qualified leads, setting high-quality appointments, and ensuring sustainable pipeline growth. Trusted by over 2,500 companies across 195+ industries, CIENCE empowers businesses to scale efficiently while reducing overhead costs.

Whether you’re a startup, SMB, or enterprise, CIENCE’s customizable solutions align with your goals, helping you penetrate new markets, build a predictable pipeline, and maximize ROI. Our hybrid approach—powered by the proprietary graph8’s data platform—ensures every campaign is strategic, data-driven, and results-oriented.

Best For: Companies seeking scalable B2B sales outsourcing solutions tailored to their specific needs.

Key Features:

• Real-time analytics to validate ICP and optimize SDR activities.
• Qualified, held appointments tailored to your Ideal Customer Profile (ICP).
• Multi-channel campaigns: email, phone, and direct mail.
• End-to-end sales process support for all industries.
• Expertise in visitor tracking and content syndication.

The CIENCE Advantage

• Performance-Based Metrics: Transparent reporting and measurable outcomes for every campaign.
• Time to Market: Shorten your sales cycle with rapid deployment and proven strategies.
• Market Penetration: Effectively target new audiences and regions with CIENCE’s research-driven approach.
• Sustainability: Consistent pipeline growth with repeatable, scalable processes.

“The CIENCE team is aggressive in generating leads and continuously fine-tunes campaigns for success. Their expertise has been a game-changer for us.” — Russell DeSalvo, VP of Sales

Pricing

CIENCE offers transparent, month-to-month pricing with no long-term contracts — making it a cost-effective alternative to building an in-house sales team at roughly one-third the cost.

• $5,000 one-time GTM System Setup: Complete setup in a 5-day sprint.
• $2,499/mo Strategic Execution: Dedicated GTM team and campaign management.
• $499/mo graph8 Infrastructure: Platform license with 75K monthly credits.
• Optional SDR Marketplace: Hire SDRs at cost ($1,500–$5,500/mo depending on level).

See full pricing details →

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Still evaluating outsourced sales partners? Our GTM team can show you exactly how CIENCE compares for your specific use case.

Talk to a GTM Strategist →

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2. Belkins

Belkins provides top-tier B2B outsourcing services, specializing in appointment setting and relationship-driven lead generation. Belkins excels at personalized email marketing and follow-up strategies, ensuring that clients consistently meet their sales KPIs. Their commitment to relationship-driven outreach has made them a trusted partner for companies prioritizing business development.

Best For: SMBs and mid-market companies looking for a reliable sales outsourcing partner.

Key Features:

• Personalized email outreach campaigns.
• Guaranteed qualified appointments.
• A focus on relationship-building and long-term sales growth.

Pricing: Belkins offers a transparent pricing structure tailored to each client’s specific needs. While exact figures may vary, their monthly retainer model starts from $5,000, providing comprehensive lead generation and appointment-setting services.

Latest review:

“Belkins carefully studied each segment we targeted and crafted messages that matched our tone and their best practices. They delivered a comprehensive market segment analysis, customized outreach messages, and steady campaign management.” - Patric B.

3. Martal Group

Martal Group delivers tailored B2B outsourcing services with a focus on tech companies. It offers multilingual sales support and specialized lead generation campaigns, enabling businesses to expand their reach in global markets. With dedicated sales teams and expertise in SaaS and technology sectors, Martal Group ensures seamless execution of sales strategies.

Best For: Tech companies seeking a trusted B2B sales outsourcing provider.

Key Features:

• Dedicated sales teams for seamless execution.
• Expertise in SaaS and technology markets.
• Global outreach with multilingual capabilities.

Pricing: Martal Group offers customized pricing based on the specific needs and goals of each client. Service pricing ranges from $3,000 to $10,000 per month.

Latest review:

“Everyone that we’ve interacted with at Martal has shown a high level of expertise in their area of knowledge.” - G2

Lead Generation and B2B Sales Outsourcing Specialists

These companies focus on generating high-quality leads and managing outreach efforts to help businesses scale through effective outsourcing.

4. Salesroads

A leader in lead generation and appointment setting, Salesroads helps businesses build predictable pipelines through tailored outreach strategies. Their experienced SDR teams focus on high-volume lead qualification and appointment setting, ensuring businesses consistently meet their sales targets.

Best For: Enterprises looking for high-volume, qualified leads.

Key Features:

• Sales development representative (SDR) services.
• Predictable pipeline building.
• Advanced reporting and analytics.

Pricing: Salesroads offers customized pricing based on the specific needs and goals of each client. For detailed pricing information, it is recommended to contact Salesroads directly.

Latest review:

“Speed to market, quality of the process, and people. David the CEO, personally stayed engaged during the project.” - Mike R.

5. LevelUp Leads

LevelUp Leads provides scalable lead generation services, specializing in email outreach and personalized lead engagement. The company is perfect for SMBs seeking outsourced sales teams that specialize in tailored cold email outreach and sales training. Their ability to scale services ensures small businesses can grow efficiently.

Best For: SMBs looking for affordable, scalable lead generation.

Key Features:

• Scalable lead generation tailored to client needs.
• Customized cold email campaigns.
• Affordable pricing for small businesses.

Pricing: LevelUp Leads offers customized pricing based on the specific needs and goals of each client. For detailed pricing information, it is recommended to contact LevelUp Leads directly.

Latest review:

“Their expertise is second to none, and they are communicative and very easy to work with.” - Nate M.

6. Leadium

Leadium offers data-driven lead generation services, emphasizing personalized campaigns and audience segmentation. They focus on delivering CRM-ready data to streamline the sales process for startups and mid-sized businesses.

Best For: Startups and mid-sized businesses seeking affordable, data-backed leads.

Key Features:

• Tailored lead generation strategies.
• CRM-ready data.
• High-quality lead research.

Pricing: Leadium offers customized pricing based on the specific needs and goals of each client. For detailed pricing information, it is recommended to contact Leadium directly.

Latest review:

“I appreciated their approach to using modern technologies for outreach.” - G2

Technology-Driven B2B Sales Outsourcing Companies

Companies leveraging AI, analytics, or automation to supercharge sales efforts.

7. Operatix

Operatix focuses on tech-driven B2B sales outsourcing solutions, offering tailored strategies for SaaS and technology companies. By leveraging AI-driven analytics and a results-oriented approach, Operatix excels in accelerating market penetration and improving ROI for tech-focused businesses. Their expert teams ensure each campaign is designed to generate maximum impact.

Best For: SaaS companies seeking analytics-backed strategies.

Key Features:

• AI-driven lead scoring.
• Market penetration strategies for tech companies.
• ROI-focused sales campaigns.

Pricing: Operatix offers custom pricing based on the complexity of the campaign. Pricing typically starts at $5,000/month.

Latest review:

“Operatix are a helpful and dedicated lead generation partner who work as an extension of the team” - Ben R.

8. Callbox

Callbox is a multi-channel sales outsourcing provider specializing in AI-powered lead nurturing and integrated marketing campaigns. Their seamless buyer journey approach combines email, phone, and social media outreach, ensuring businesses reach and engage with the right prospects at the right time. Callbox uses advanced cold calling techniques combined with integrated campaigns for a seamless customer journey. With their focus on sales reps and potential customers, they ensure high-quality interactions that drive conversions.

Best For: Companies needing a multi-channel approach with automation.

Key Features:

• AI-driven lead nurturing.
• Integrated email, phone, and social campaigns.
• Real-time campaign analytics.

Pricing: Callbox offers flexible pricing packages starting from $2,500/month, depending on the scope and scale of services.

Latest review:

“People from Callbox are very friendly, responsive and process-oriented.” - G2

9. CloudTask

CloudTask provides multilingual B2B sales outsourcing services, offering global businesses the ability to expand into new markets. Their data-driven approach incorporates advanced analytics to deliver actionable insights, ensuring high-quality customer interactions and sales conversions.

Best For: Global businesses with multilingual needs.

Key Features:

• Multilingual sales teams.
• Advanced sales tracking and analytics.
• Customer success outsourcing.

Pricing: CloudTask offers pricing tailored to the client’s needs, with packages starting at $3,500/month.

Latest review:

“CloudTask gives a curated list of all the best candidates that fit your needs and all of the candidates have so much information to offer up front.” - Roman P.

SMB and Startup-Focused B2B Sales Outsourcing Providers

Providers catering specifically to the needs of smaller businesses and startups.

10. SalesHive

SalesHive delivers budget-friendly B2B sales outsourcing solutions with a focus on email and phone-based outreach. Their scalable services are designed to help startups and SMBs build and maintain a consistent sales pipeline while keeping costs low.

Best For: Startups and SMBs on a budget.

Key Features:

• Scalable email outreach.
• Phone-based lead engagement.
• Transparent pricing.

Pricing: SalesHive pricing starts at $2,000/month, with options to scale services based on business needs.

Latest review:

“They were also great about helping us set realistic expectations around being a newer product and what we may get as results and the timeline around it. We’ve learned a lot from the outreach done so far and are starting to get traction with a subset of our market we hadn’t considered before.” - Nancy H.

11. SalesPanel

SalesPanel is a platform-focused B2B sales outsourcing provider that specializes in lead qualification and behavior-based tracking. By leveraging detailed analytics and CRM integrations, SalesPanel helps businesses improve their sales pipeline efficiency and conversion rates.

Best For: Small businesses focused on digital tracking.

Key Features:

• Behavior-based lead tracking.
• CRM integrations.
• Affordable solutions for SMBs.

Pricing: SalesPanel offers pricing packages starting at $1,000/month.

Latest review:

“The simplicity to install and get the results and overvieiw every business owner can use.” - Bruno D.

12. VisitorQueue

VisitorQueue specializes in identifying website visitors and converting them into actionable leads. Their real-time notification system ensures sales teams can engage prospects immediately, maximizing the potential of website traffic.

Best For: SMBs with significant website traffic looking to uncover hidden leads.

Key Features:

• Website visitor identification.
• Real-time lead notifications.
• Integration with marketing platforms.

Pricing: VisitorQueue offers plans starting at $79/month, with scalable options for larger businesses.

Latest review:

“VQ assists our sales team to guage interest for potential customers who are ready to re-order product” - Erik R.

Boutique B2B Sales Outsourcing Agencies

Smaller agencies offering highly personalized services.

13. Aloware

Aloware combines call tracking and SMS automation to deliver a tailored approach to lead engagement. Their user-friendly platform makes it easy for SMBs to manage and track communications, ensuring consistent and personalized customer interactions.

Best For: SMBs focused on call-based sales.

Key Features:

• Call tracking and SMS automation.
• Personalized outreach.
• User-friendly platform.

Pricing: Aloware offers pricing starting at $30/month per user, with scalable options for larger teams.

Latest review:

“Aloware is great for remote sales teams. I have members in different cities and countries and it was super easy to set up and use.” - J. Peter S.

14. Cleverly

Cleverly is a LinkedIn-focused B2B sales outsourcing provider, helping businesses connect with decision-makers through targeted outreach campaigns. Their expertise in crafting compelling LinkedIn messages ensures high response rates and meaningful engagement with prospects.

Best For: Businesses leveraging LinkedIn for B2B sales.

Key Features:

• LinkedIn prospecting and messaging.
• Performance tracking.
• Affordable for small teams.

Pricing: Cleverly offers packages starting at $297/month.

Latest review:

“What I like best about Cleverly is its ability to deliver targeted leads with minimal effort on our part. As a small firm, we appreciate the efficiency it provides in managing outreach campaigns.” - Zain K.

15. FiveRings Marketing

FiveRings Marketing is a boutique agency that provides personalized B2B lead generation campaigns for small and mid-sized businesses. Their high-touch approach ensures campaigns are tailored to each client’s unique needs, focusing on relationship-building and long-term growth.

Best For: SMBs prioritizing relationship-building.

Key Features:

• Custom campaigns.
• High-touch lead management.
• Focus on smaller businesses.

Pricing: Pricing starts at $4,000/month, depending on the complexity of services.

Latest review:

“They are very responsive and have a remarkably organized and efficient lead development process.” - Clutch

16. SalesNash

SalesNash specializes in B2B sales development for startups, providing rapid lead generation and qualification services. Their startup-friendly pricing and dedicated SDR support make them an excellent choice for businesses looking to scale quickly.

Best For: Startups needing fast results.

Key Features:

• Quick lead turnaround.
• Startup-friendly pricing.
• Dedicated SDR support.

Pricing: SalesNash pricing starts at $2,500/month, with flexible options for scaling.

Latest review:

“They communicated effectively through various channels and stayed within the project scope. Their ability to establish the right contacts and deliver projects has led us to refer them to other companies.” - Olha B.

CIENCE: The #1 Sales Outsourcing Company

Trusted by over 2,500 companies across 195+ industries, CIENCE delivers unmatched results in B2B sales outsourcing. With expertise in lead generation, appointment setting, and multi-channel campaigns, CIENCE combines cutting-edge technology and a dedicated team to drive sales performance and business growth.

Discover why CIENCE is the leader in outsourced sales management—offering tailored solutions, transparency, and proven success to help you scale efficiently.

Get a Free Pipeline Assessment →

What Are the Benefits of B2B Sales Outsourcing?

The six core benefits of B2B sales outsourcing are cost savings, access to trained teams, flexibility to scale, market expansion, process control, and immediate infrastructure. Here’s how each one works.

1. Cost savings

Outsourcing your SDR function costs roughly one-third of hiring equivalent in-house reps. You eliminate overhead for recruiting, onboarding, benefits, and management while getting a team that’s already trained and productive.

Outsourced B2B sales firms also bring their own tech stack — CRM, dialers, email tools, and data enrichment — so you don’t need to license and maintain those separately.

2. Access to high-performing teams

Instead of spending 3-6 months hiring and ramping new SDRs, outsourcing gives you immediate access to experienced sales professionals with proven track records across multiple industries. These reps already know how to prospect, handle objections, and qualify leads.

3. Increased flexibility

Outsourced sales teams let you scale up or down based on demand. Entering a new market? Add reps. Seasonal slowdown? Reduce scope. This flexibility eliminates the risk of overhiring or laying off full-time employees when conditions change.

4. Target new or underserved markets

Sales outsourcing partners bring market research capabilities and regional expertise that help you penetrate new geographies and verticals without building local teams from scratch. This is especially valuable for companies expanding internationally or testing new ICPs.

5. Greater control over the sales process

Reputable outsourcing partners provide real-time dashboards, call recordings, and transparent reporting. You get more visibility into pipeline activity than most companies have with their own internal teams — without managing the day-to-day operations yourself.

6. Immediate infrastructure

When you outsource, you skip the 6-12 month ramp period of building an internal sales org. From day one, you get trained reps, established processes, proven playbooks, and the technology stack to support them.

How to Evaluate a B2B Sales Outsourcing Partner: Checklist

From David Dulany, Founder, Tenbound (a graph8 company): Most companies evaluate outsourced sales providers the wrong way — they lead with price and end with fit. That’s backwards. Start by asking: does this provider have a repeatable playbook for my ICP, and can they show me verified results from accounts like mine? If they can’t answer that with specifics, price doesn’t matter.

Finding the right B2B sales outsourcing partner can transform your sales strategy. A good provider should bring expertise, innovation, and measurable results to the table. This checklist outlines the key factors to consider to ensure you make the best choice for your business.

1. Assess Industry Expertise

• Do they have experience in your niche or target market? Example: CIENCE specializes in 195+ B2B industries, delivering tailored solutions for tech, healthcare, SaaS, and more.

2. Test Multi-Channel Capabilities

• Can they handle outreach across multiple channels (email, phone, LinkedIn, direct mail)? Example: CIENCE integrates direct mail with email and call campaigns to maximize engagement across touchpoints.

3. Evaluate Technology Usage

• Do they use innovative tools like AI-driven lead scoring or visitor tracking? Example: CIENCE’s proprietary graph8 data platform optimizes SDR activities in real time for higher efficiency.

4. Review Proven Success Through Case Studies

• Do they have a proven track record supported by case studies? Example: CIENCE showcases 150+ successful case studies, highlighting how their tailored approaches help clients achieve measurable growth in lead generation and pipeline building.

5. Assess Scalability

• Can they scale up their services as your business grows? Example: CIENCE supports clients from 1 SDR team to 25+, with seamless transitions for rapid scaling.

6. Verify Transparent Pricing

• Is the pricing clear and performance-driven? Example: CIENCE offers custom pricing models tailored to your goals, ensuring you pay only for what delivers results.

7. Confirm Accountability

• Do they provide reporting and quality assurance? Example: CIENCE delivers real-time analytics dashboards so clients can monitor campaign progress and adjust strategies.

8. Check Ratings and Reviews

• What do clients say about their experience? Are there credible ratings on platforms like G2, Clutch, or Trustpilot? Example: CIENCE has consistently high ratings, with 4.6/5 on Capterra and positive reviews praising its lead quality, SDR expertise, and data-driven campaigns.

Focus on these 8 key areas to make your evaluation straightforward and impactful. Real-world examples like CIENCE’s 150+ case studies, advanced technology, and multi-channel mastery highlight what sets exceptional providers apart.

Whether or not you decide to work with us, you’ll walk away with a clear picture of where your pipeline is leaking and what it would take to fix it.

FAQs on B2B Sales Outsourcing

1. What is B2B Sales Outsourcing?

B2B sales outsourcing is the process of hiring an external company to manage some or all aspects of your sales operations, such as lead generation, appointment setting, or closing deals. These providers use their expertise, tools, and resources to drive sales and help businesses scale without the overhead of building an in-house team.

2. What is a Sales Outsourcing Company?

A sales outsourcing company is a third-party organization that specializes in providing businesses with sales support services. These companies handle tasks like prospecting, lead nurturing, and closing deals, leveraging their trained teams and advanced technologies to optimize the sales process and deliver measurable results.

3. Who Needs Sales Outsourcing?

Sales outsourcing is ideal for:

• Startups needing to scale quickly without hiring a full in-house team.
• SMBs with limited resources or expertise in managing sales.
• Enterprises looking to penetrate new markets or offload specific sales functions.
• B2B companies seeking to boost lead generation and pipeline growth while focusing on their core business activities.

4. When Should You Outsource Sales?

Outsourcing sales is the perfect solution when your business is scaling rapidly or exploring new markets. It provides access to exceptional sales representatives who can focus on generating qualified sales opportunities, closing new deals, and improving overall efficiency.

A professional sales outsourcing partner ensures smooth operations with a strong management approach, prompt responses, and transparent communication. By keeping clients informed about updates and communicating well via email, they reduce misunderstandings and decrease disputes.

If you’re looking to retain more customers, test market potential, or gain the flexibility to scale without long-term commitments, sales outsourcing offers the expertise and responsiveness needed for success.

5. Is Outsourcing Sales a Good Idea?

Yes, outsourcing sales can be a great strategy for businesses looking to:

• Save on costs associated with hiring, training, and managing in-house teams.
• Access specialized expertise and advanced sales technologies.
• Quickly scale operations without significant investment.

However, success depends on choosing the right provider and ensuring alignment with your business goals.

6. What is the Cost of Sales Outsourcing?

The cost of sales outsourcing varies based on the provider’s methodology, scope of work, and level of sales expertise offered. For example, outsourced sales teams specializing in cold calling and email marketing typically charge between $2,000–$5,000/month, while inside sales or full-service solutions may range from $5,000 to $15,000/month.

Many providers offer transparent pricing and set minimum spend levels to align with your project budget ranges. For businesses with specific needs, such as outsourced sales management, pricing may also depend on hourly rates or tailored packages designed to optimize sales performance within your client budget.

Here are typical pricing brackets:

• Lead Generation: $2,000–$5,000/month for basic services.
• Appointment Setting: $3,000–$10,000/month, depending on volume.
• Full-Service Sales Outsourcing: $5,000–$15,000/month or more for comprehensive business development solutions.

Clear communication with your provider ensures that costs align with your expectations and deliver measurable ROI.

Here’s what happens when you reach out: A GTM strategist reviews your ICP, current pipeline, and growth goals. You’ll get a diagnostic of where outsourced sales development fits your model — and a concrete plan for what the first 90 days would look like. No commitment required, and there’s zero pressure to sign anything on the call.


“Thanks to CIENCE, we’ve seen a 500% monthly increase in new sales appointments.” — Bryce Garoutte, Sr. VP of Business Dev & Marketing, Silicon Valley Insight