7 Proven B2B Outsourced Sales Partners That Doubled Client Revenue

Belkins

Belkins has revolutionized the B2B outsourced sales world since 2017. The company uses multiple channels and detailed customer profiling. Their all-encompassing approach has helped over 1,000 businesses in more than 50 industries grow their sales pipeline.

Belkins Key Services

The company's specialized sales experts provide these B2B lead generation services:

• Appointment Setting: Their core service connects you with decision-makers and builds a stable pipeline

• Cold Email Outreach: Individual-specific campaigns that cut through inbox noise and secure calls

• Cold Calling: Direct phone outreach that boosts appointment bookings by 30%

• LinkedIn Lead Generation: Ways to expand reach and connect with prospects on professional networks

• Lead Research: Dedicated specialists manually verify prospects. They analyze roles, challenges, tech stack, and decision-making processes

• Account-Based Marketing: Targeted approaches for high-value accounts

Belkins stands out because of their careful approach to creating ideal customer profiles (ICP). These profiles shape outreach channel choices, personalization levels, meeting cost estimates, and projected volumes. The company refines these profiles through engagement metrics, conversion rates, and direct client feedback.

Belkins Client Results

The results show how well Belkins works:

Their clients close 25% more deals with their target accounts. A startup investment platform got 346 appointments over 15 months. They secured 285 through email, 40 via LinkedIn, and 21 from calls. This is a big deal as it means that the ROI reached 125%, beating the industry average of 107-110%.

GoHealth Urgent Care saw amazing results with Belkins. They got 376 scheduled meetings and 10 solid appointments weekly. The email open rate hit 80%. This led to 4 major deals worth about $100,000 each in just 3 months.

Belkins doubled their sales efforts each year after using Pipedrive. The core team now saves 50 hours weekly. They cut email creation time from 15 minutes to 2 minutes through streamlined processes.

Belkins Pricing

Belkins uses a clear monthly retainer model with three main packages:

1. Growth: Perfect for companies that want wider reach and expandable growth through multi-channel communication. It targets 100+ yearly appointments

2. Growth Plus: Built for organizations heading toward extensive market penetration with 200+ yearly appointments

3. Enterprise: Made for teams that need custom growth strategies with fully tailored approaches across all channels

Packages start at $5,500 monthly. Final costs change based on market specifics and channel numbers. Each package includes sales audit and strategy mapping, total addressable market calculation, manual lead research, clear reporting, and appointment scheduling with no-show recovery.

Small businesses can work with Belkins through their partner agencies. This option provides at least 30 annual appointments at a lower cost.

Belkins Best Fit

Belkins works great with:

• Industry Specialization: Technology, manufacturing, marketing agencies, construction, consulting, recruitment, logistics, healthcare, SaaS, and financial services

• Company Size: From startups to enterprise-level organizations that need major pipeline growth

• Target Markets: Companies looking to enter new markets or regions, as shown by their work helping YorkTest enter the U.S. market

• Specific Challenges: Businesses that don't deal very well with revenue projections lagging 2-3 times behind targets, long sales cycles (6-12 months), or gaps between marketing and sales teams

Belkins helps companies reduce meeting costs from $5,000 to $1,000 through faster learning and optimization. They work best with organizations that know optimization needs consistency rather than quick testing periods.

Their client list includes Cisco, GE HealthCare, Berkeley College, Sekisui, Citcon, and Columbus Chamber of Commerce. This shows they can help a variety of businesses across multiple sectors.

SalesRoads

SalesRoads has grown into a premier outsourced sales partner over the last 17 years in B2B sales. The company stands out from volume-focused competitors by delivering exceptional lead quality through meaningful customer conversations.

SalesRoads Key Services

SalesRoads creates custom B2B outsourced sales solutions that match your business goals:

• Full SDR Appointment Setting: Their main service books qualified appointments right on your calendar, starting at $9,950 per 4-week cycle. You get a dedicated Sales Development Representative (SDR) backed by a complete team.

• Market Research Lead Generation: The service provides deeply qualified leads with complete qualification research, also starting at $9,950 per 4-week cycle.

• Opportunity Scheduling Programs: The company builds custom outsourced sales development teams and handles everything from hiring to training and coaching.

SalesRoads' methodology sets them apart. They create a custom demand generation playbook for each client that defines ideal customer profiles, messaging, qualification criteria, and objection handling. Their strategy combines phone-first outreach with custom email campaigns and CRM integration.

The company has strengthened its market position by acquiring VSA Prospecting, which solidifies its leadership in lead generation.

SalesRoads Client Results

The company's track record shows impressive results for clients of all sizes:

• Clean Energy jumped from 16 meetings monthly to 83 meetings per month after teaming up with SalesRoads.

• Kuebix beat their conversion goals for paid users. CEO Dave Lemont called SalesRoads "an integral part of our go-to-market strategy".

• Protecht booked 807 appointments through their SalesRoads partnership. The partnership proved so successful that Protecht changed their internal team structure to invest more in it.

Clients give the company 4.9/5 stars on average, with most ratings being perfect 5/5. Reviews highlight how well SalesRoads works with internal teams while driving better sales numbers.

SalesRoads Pricing

The company uses a retainer-based pricing model with these programs:

1. Full SDR Appointment Setting: Starting at $9,950 per 4-week cycle

2. Market Research Lead Generation: Starting at $9,950 per 4-week cycle

3. Flexible Appointment Setting: Entry-level option with AI-powered dialing and fractional SDRs starting at $6,950 per 4 weeks

Each program has a complete demand generation playbook, dedicated team members, multi-channel outreach capabilities, and CRM integration. External sources show SalesRoads' minimum project size starts at $5,000+, making them available to mid-market businesses with enough budget for quality lead generation.

SalesRoads Best Fit

SalesRoads works best for:

• B2B organizations with complex, high-value sales cycles: This includes SaaS, technology, manufacturing, industrial tech, logistics, transportation, construction, healthcare, and public sector.

• Quality-focused companies: Organizations that value well-qualified leads over simple numbers will appreciate SalesRoads' focus on meaningful conversations and prospect qualification.

• Businesses needing brand-aligned representation: Your outsourced department will sound like you and work as part of your team, protecting your brand's reputation.

• Companies with clear product-market fit: The starting price point makes SalesRoads ideal for businesses ready to invest in a premium outbound engine.

SalesRoads shines when working with companies that know optimization takes time rather than quick tests. They excel at booking appointments with decision-makers who are ready to buy, which helps businesses struggling with inconsistent lead generation.

Leadium

A 8-year old company, Leadium has become a revolutionary force in the B2B outsourced sales ecosystem. The company has generated over $1 billion in revenue pipeline for more than 1,200 organizations. This full-service appointment setting agency stands out by combining human-sourced data with multichannel outreach strategies.

Leadium Key Services

Leadium streamlines processes through three core services:

• Appointment Setting: Their signature service runs fully-managed outbound sales campaigns that book qualified appointments directly to your calendar. The team takes care of everything from strategy development to email creation and prospect outreach.

• Data Sourcing: Leadium takes a different approach from traditional databases. Their dedicated researchers manually confirm contact information for each record. This method delivers channel-optimized lead data with a 100% accuracy guarantee, something unique in the industry.

• Inbound Lead Qualification: The company transforms marketing qualified leads (MQLs) into sales qualified leads (SQLs) by acting as your on-demand inbound sales team. This service speeds up lead qualification by 40% and boosts overall SDR efficiency.

The team works through multiple channels such as outbound email campaigns, cold calling (with a 15% average connect rate), LinkedIn prospecting, strategic gifting, and marketing events. They examine 17 points of every outbound sequence to ensure data quality and enhance future campaigns.

Leadium Client Results

The company's effect on client revenue shows impressive numbers:

• They helped propel development by contributing to 76 acquisitions. Their clients received $6.5+ billion in funding and achieved 5 IPOs

• Results showed a 200% increase in leads per quarter and 4x more meetings booked with Director+ level marketing executives

• Rydoo, a global expense management software provider, saw their enterprise pipeline grow by 30% while deal sizes jumped 3-4x compared to inbound channels

• PayEm's first quarter brought a 75% increase in lead volume along with a 30% conversion rate from meetings to qualified opportunities

• Goodyear achieved remarkable results with 24% of cold calls turning into meetings and a 30% cold call connection rate

Kevin Warner, Leadium's CEO, attributes their success to "prioritizing client revenue goals and hyper-personalizing outreach". This strategy helped Leadium triple its annual revenue after optimizing their own sales processes.

Leadium Pricing

The company provides flexible options with these key features:

• Contract Structure: Clients can assess performance through month-to-month contracts without long-term commitments

• Free Trial: A 30-day trial comes with an optional 30-minute onboarding call to speed up implementation

• Cost Efficiency: Clients save 67% in weighted costs compared to building an in-house team

While specific package prices aren't public, external sources mention average project costs between $10,000 to $49,000. The value comes from reducing the $150,000 average annual cost of an in-house SDR, including salary, benefits, training, and technology.

Leadium Best Fit

The company shines as a B2B sales outsourcing partner for:

• Industry Versatility: Organizations in 35+ industries, from SaaS to healthcare, finance, manufacturing, logistics, and cybersecurity

• Growth-Stage Organizations: Businesses from startups to enterprise level that want to scale without internal SDR team costs

• Companies with Defined ICPs: Organizations with clear ideal customer profiles that need to reach high-value prospects through personalized outreach

• Results-Focused Teams: Businesses looking for measurable metrics like their typical 5X ROI compared to internal teams

Leadium works best for companies that want to eliminate sales process redundancies. They serve as a "single source of truth" for outbound sales activities and help clients boost conversion rates while staying profitable as they grow.

LevelUp Leads

LevelUp Leads emerged in 2021 as a fresh face among B2B sales outsourcing partners. This California-based agency works with clients worldwide through its remote team. The company has grown faster to achieve $3.50M in annual revenue, making its mark in the competitive sales development world.

LevelUp Leads Key Services

LevelUp Leads acts as your team's detailed sales development extension by offering:

• Multi-Channel Outbound Campaigns: Their core service blends email, phone, and LinkedIn outreach to generate qualified meetings. They stand out by running all three channels at once instead of one after another.

• Fractional & Full-Service SDR Teams: You can choose anything from part-time support to dedicated representatives based on your pipeline needs.

• B2B Appointment Setting: The team crafts powerful cold-calling campaigns that target prospects who haven't heard of your brand.

• List Building & Data Sourcing: They build custom contact lists using your ideal customer profile with confirmed data from eight premium databases.

• GTM Strategy: They provide market research, competitive analysis, and audience identification for new product launches.

• LinkedIn Lead Generation: Your professional networking presence grows to build brand awareness and generate qualified leads.

The team's integrated approach sets them apart. They handle everything from data sourcing to copywriting and campaign execution, so your team can focus on closing deals.

LevelUp Leads Client Results

Though newer than some competitors, LevelUp Leads has achieved remarkable results:

Their team helped an IoT solutions provider exceed sales targets by booking over 10 monthly appointments. This created more than $1.20 million in pipeline and $280,000 in closed revenue within six months.

The company's own SEO success story shows a stunning 169% increase in website visitors in just 2.5 months. Their Domain Rating jumped from 7 to 26.

A client praised them for delivering "high-quality leads perfectly aligned with our target market". This shows their commitment to quality over quantity.

The team communicates well and suggests improvements while adjusting strategies when needed. Their adaptable approach has helped them complete over 850 projects and serve 590+ clients with an average ROI of 11:1.

LevelUp Leads Pricing

The company offers clear, tier-based pricing:

1. Fractional SDR: Part-time SDR support and simple outreach volume starts at $5,000 monthly.

2. Full-Service SDR: Dedicated SDR support, higher volume outreach, and full CRM integration costs $8,000–$10,000 monthly.

3. Growth Package: Multiple SDRs, maximum volume, and strategic account management begins at $12,000+ monthly.

Specialized cold-calling packages start at $3,500 monthly for teams that prefer phone-focused campaigns.

Each package includes access to premium tools, professional team support, and ongoing campaign optimization.

LevelUp Leads Best Fit

The company works best with:

• Small to mid-sized B2B companies that sell higher-ticket products or services.

• Organizations with clear product-market fit and defined ideal customer profiles ready to scale outbound efforts.

• Companies of all sizes in technology, SaaS, IT services, and other complex B2B sectors.

• Businesses targeting senior decision-makers who need targeted, customized outreach.

Companies with average deal sizes in the mid-five-figures or higher benefit most from their services. Their approach helps organizations that lack resources to build internal prospecting teams but want steady pipeline growth through expert outsourcing.

SalesAR

SalesAR has earned a 4.9/5 rating from more than 100 clients. The company helps businesses turn their regular outreach into a reliable source of revenue. They blend human expertise with automation to make every client interaction count.

SalesAR Key Services

SalesAR excels in multichannel lead generation and sales development. They combine human touch with automation:

• Omnichannel Approach: Their campaigns bring together email, LinkedIn outreach, and phone calls to keep in touch with prospects consistently

• B2B Appointment Setting: They run campaigns that turn conversations into meetings with decision-makers

• Sales Development Representative (SDR) Services: A complete SDR-as-a-Service package that qualifies and connects with prospects

• Deep Persona Research: Every campaign begins with detailed ideal customer profile analysis and buyer psychology to target the right prospects

SalesAR stands out from other B2B sales companies because they put quality first. They create each campaign from scratch based on their client's market conditions and buyer behaviors. Their worldwide team reaches out to decision-makers with messages that strike a chord.

SalesAR Client Results

SalesAR has delivered great results across different industries:

Akridata, a U.S.-based platform that helps enterprises handle large-scale AI/ML workloads data, needed global B2B lead generation across the U.S., EU, and India. The campaign achieved:

• 55,000+ contacts researched

• 297+ meetings booked

• 7% reply rate across all campaigns

These results came from their multichannel approach. They used enriched contact data, customized outreach, and location-specific messages to reach decision-makers in data-heavy industries.

Their clients can track performance through live dashboards. Weekly feedback sessions help both teams stay on the same page.

SalesAR Pricing

SalesAR uses a mix of base fees and performance rewards:

• Base Price Range: USD 2,500 to USD 15,000+ monthly, depending on what the campaign needs

• Pricing Structure: Monthly retainer with bonus payments to reward good results

• Long-term Value: Companies that stay for over six months see 2.4x better ROI than short-term clients

This pricing approach works well. The base fee covers strategy, research, and prospect nurturing. Performance bonuses keep the team focused on results. This balance works especially well for complex B2B campaigns across multiple channels.

SalesAR Best Fit

SalesAR works best with:

• Industry Focus: SaaS companies, tech providers, IT services, manufacturers, and professional service firms

• Business Stage: Growing companies that need steady deal flow and predictable revenue

• Sales Process Maturity: Companies with established sales processes that want marketing and sales to work together

• Ideal Client Mindset: Businesses looking for trusted advisors, not just vendors

SalesAR does its best work with clients who know that outsourced sales needs true partnership, not just execution. Their ideal clients think big and focus on opportunities rather than just cutting costs.

The company's focus on deep research and data enrichment helps businesses reach decision-makers in complex buying situations where generic approaches don't work. They get high reply rates (up to 7%) and meeting acceptance rates (over 30% in top campaigns), which makes them perfect for companies that need qualified opportunities instead of just leads.

Lunas Consulting

Lunas Consulting partners with startups as their B2B outsourced sales specialist. This women-led consultancy equips small and medium-sized businesses with tools and expertise they need to expand sustainably.

Lunas Consulting Key Services

Lunas Consulting offers an integrated suite of revenue-generating services:

• Intent-Based Lead Generation: Dedicated SDR teams conduct personalized outreach and appointment setting, supported by customized analytics dashboards

• Strategic Consulting: Expert guidance on product market research, sales process development, and detailed revenue growth planning

• Sales Training: Detailed SaaS sales bootcamps from novice to expert levels, including live virtual coaching and lead generation fundamentals

• Digital Marketing: Complete services that cover SEO, social media strategy, paid advertising, and website development

Lunas stands out with their 360-degree methodology. The team analyzes business goals and studies data from customer touchpoints to develop personalized full-funnel strategies based on desired outcomes.

Lunas Consulting Client Results

Though newer than some competitors, Lunas has achieved remarkable results:

A client saw their monthly leads grow by 15%, customer involvement improve by 20%, and overall revenue increase by 10%. Another client experienced a 30% boost in lead-to-customer conversion rates, 25% growth in recurring revenue, and 35% better marketing campaign ROI.

Lunas has helped many clients secure meetings with potential leads while improving click-through rates, open rates, response rates, and conversion metrics by a lot.

Their clients praise their responsive approach: "Lunas has been incredibly responsive to our needs and keeps an open dialog as we learn together," notes Zach G., a CEO client.

Lunas Consulting Pricing

Lunas Consulting uses a consulting fee structure. Market rates for similar financial consulting services range between $25-$49 per hour.

Their services match business strategy consulting rates, which typically cost between $100-$149 hourly.

Lunas Consulting Best Fit

Lunas Consulting works best with:

• Early-Stage Businesses: Startups that need essential tools and expertise to grow sustainably

• Companies Needing Integration: Organizations looking to coordinate their sales and marketing functions

• Clients Seeking Personalization: Businesses wanting analytical, tailored strategies instead of generic approaches

• Industry Versatility: The company serves staffing and recruiting sectors along with B2B industries of all types

Lunas's excellence earned them "Startup of the Year" in Business Services at the 19th Annual Stevie Awards for Women in Business. The Manifest also named them among the Top Lead Generation Companies in Canada 2023.

A-SALES AB

A-SALES AB, a year old Swedish company, ranks as Europe's leading B2B growth partner. They help companies create expandable sales strategies. Their expertise covers more than 50 industries, and they know how to reach the right audience for each client's unique needs.

A-SALES AB Key Services

A-SALES AB accelerates revenue through multiple channels:

• Appointment Setting: Their B2B appointment booking service delivers high-quality leads with strong conversion potential. Clients can generate new business opportunities within weeks.

• Cold Email Outreach: Their analytical campaigns achieve 15% reply rates. These campaigns improve appointment attendance and boost deal conversion.

• Intent-Based Cold Calling: Their approach builds stronger connections and relationships that help close high-ticket deals.

• Account Based Marketing: They run hyper-targeted and tailored outreach campaigns to build strong partnerships with high-value accounts.

• LinkedIn Lead Generation: Their professional networking strategies achieve 15% higher sales closing rates. They develop brand image and reach prospects directly.

Their Outsourced SDR service costs about 4 times less than expanding an in-house department.

A-SALES AB Client Results

A-SALES AB has achieved remarkable results in many industries:

They secured 20 Fortune 500 meetings and closed 2 enterprise deals for a Technology/Enterprise SaaS client. A Marketing sector client received 180+ meetings in just 30 days.

One SaaS client received an impressive 600+ meetings while maintaining 100% average KPIs. This client closed a six-figure annual deal within 90 days.

Client satisfaction shows in their ratings. They earned 4.9/5 on Clutch from 52 reviews and a similar 4.9/5 on Trustpilot from 75 reviews.

A-SALES AB Pricing

A-SALES AB creates custom pricing based on campaign scope and complexity. They provide native-speaking SDRs who understand local sales etiquette in Nordic and DACH regions.

A-SALES AB Best Fit

A-SALES AB works best with:

• Companies looking to expand internationally, especially into European markets

• Businesses that need cultural alignment and localized value propositions

• Organizations targeting C-suite executives

• Companies in a variety of sectors including SaaS, technology, consulting, healthcare, and more

They excel at helping businesses build a strong European presence through their deep understanding of regional market dynamics.

Comparison Table

Conclusion

The right B2B outsourced sales partner will revolutionize your revenue growth and substantially cut operational costs. These seven providers each bring unique strengths that match specific business needs. Your company might need appointment setting, multi-channel outreach, or full-funnel lead generation. These proven partners consistently deliver qualified opportunities that convert.

Numbers tell the real story. Companies working with these outsourced sales teams get up to speed 40% faster and save up to 30% in sales costs compared to internal teams. You'll get specialized expertise at a fraction of the cost, instead of spending $150,000+ yearly on one in-house SDR or paying big agency retainers.

Several factors determine your ideal outsourced sales partner. Your budget limits, target market details, sales cycle complexity, and growth goals all play a role. SalesRoads might be your best fit if quality appointments matter most. Belkins stands out with detailed customer profiling. Leadium backs their data accuracy with guarantees, while A-SALES AB brings specialized European market knowledge.

Great partnerships need strategies that line up, not just tactical execution. Top results come when you treat these providers as team members rather than vendors. Many clients saw their best outcomes after six months of working together, which gave time to refine and optimize strategies.

Outsourcing your B2B sales development is an investment in steady pipeline growth. You can position your company for sustainable growth without massive overhead by teaming up with experts who have doubled their client's revenue. These partnerships help scale sales teams efficiently.

Key Takeaways

These seven proven B2B outsourced sales partners demonstrate how strategic partnerships can accelerate revenue growth while reducing operational costs by up to 30% compared to in-house teams.

• Quality over quantity drives results: Top performers like SalesRoads and Belkins focus on deeply qualified leads rather than volume metrics, achieving 25% more deal closures and converting prospects at higher rates.

• Multi-channel approaches maximize reach: Companies using simultaneous email, LinkedIn, and phone outreach see 200% increases in lead generation and 7% reply rates versus single-channel strategies.

• Data accuracy is non-negotiable: Leadium's 100% accuracy guarantee on contact data and manual verification processes eliminate wasted outreach efforts and improve conversion rates significantly.

• Strategic partnerships require 6+ months: The most impressive client results emerge after sustained collaboration, allowing time for ICP refinement, strategy optimization, and consistent pipeline development.

• Pricing transparency enables better decisions: Monthly retainers ranging from $2,500-$15,000 provide predictable costs versus the $150,000+ annual expense of hiring internal SDRs with benefits and training.

The key to success lies in viewing these providers as strategic extensions of your team rather than tactical vendors, focusing on long-term partnership alignment over short-term cost savings.