7 Best B2B Cold Calling Companies in 2025

Cold calling has been declared “dead” for years. Yet in 2025, it’s quietly becoming one of the most effective outbound channels for B2B companies. What was once old is now new, and that counts especially for B2B brands selling complex products.

Why?

Because as inboxes fill with automated emails and AI-generated LinkedIn messages, live conversations have become rare and therefore valuable. Today’s buyers want clarity, relevance, and trust. A real conversation delivers all three.

Modern cold calling has evolved far beyond boiler rooms or script-reading call centers. The best firms operate as specialized SDR units, equipped with data, strategy, qualification frameworks, and experienced sales talent capable of handling nuanced, technical discussions.

In this guide, we highlight the 10 best B2B cold calling companies in 2025, explain how the landscape has changed, and help you choose the right partner for predictable pipeline growth.

TL;DR: our top picks are:

1. Profitbl: for B2B SaaS and cybersecurity companies looking to penetrate English and French-speaking European markets.
2. Remote Aids: for B2B companies who place an emphasis on cost efficiency.
3. Abstrakt: Companies looking for an outbound partner that blends their outreach efforts with content marketing.
4. MemoryBlue: Enterprise teams that want to engage a partner with a global presence.
5. Belkins: B2B companies looking for a global partner with broad industry coverage.
6. Whistle: teams looking for a partner who integrates AI into their outbound efforts.
7. The Sales Factory: Business focusing specifically on penetrating US and Canadian markets.

Why is cold calling thriving again?

As AI automates more of the top-of-funnel process, channels like cold email have become saturated. Response rates continue to fall, and buyers are increasingly immune to mass outreach.

Cold calling, however, cuts through that noise.

A well-executed cold call has 3 - 5x higher engagement than email-based outreach, particularly for decision-makers evaluating high-ticket software or services. It offers immediate discovery, instant trust-building, and faster qualification than any digital channel can provide.

And unlike traditional telemarketing, modern cold calling is:

• Data-driven
• Multichannel-supported
• Strategically aligned
• Operated by senior SDRs
• Focused on revenue, not call volume

That’s why companies struggling with inconsistent pipeline or underperforming SDR teams are turning to outsourced cold calling partners to bring structure, expertise, and predictable results.

💡 At Profitbl, cold calling isn’t a stand-alone activity. It’s part of a strategic GTM system supported by LinkedIn, email, and messaging frameworks, ensuring every call is contextual, relevant, and BANT-qualified.

What should you look for in a B2B cold calling partner?

Not all cold calling companies operate at the same level. The best partners share seven essential qualities:

• Experienced SDRs: Look for agencies with experienced reps, but also those with deep experience in your target industry, vertical and geography.
  
• Go-to-Market alignment: Their strategy should demonstrate alignment on ICP clarity, messaging, and positioning.
  
• Qualification frameworks: Skip agencies that don’t clearly offer some lead qualification framework. Examples include BANT, SPICED or MEDDIC.
  
• Speed to value: Give priority to agencies with faster onboarding. Anything less than two weeks is great. Onboarding that’s done within a week is phenomenal.
  
• Transparency: Finally, choose someone who’ll give you access to call recordings, dashboards, and conversion metrics from your campaign.

Choosing an agency based on these criteria will help separate modern SDR-driven cold calling firms from outdated call centers that rely on scripts, volume, and junior staff.

The 10 Best B2B Cold Calling Agencies (2025 Edition)

1. Profitbl

Best for: SaaS and cybersecurity companies seeking bilingual cold calling and pipeline generation across English and French speaking European markets.

Profitbl delivers high-precision, multilingual cold calling for B2B software companies expanding across European markets. Every campaign begins with a defined GTM framework, ensuring SDRs fully understand ICPs, value propositions, and messaging before dialling. Unlike traditional telemarketing providers, Profitbl employs only senior SDRs (5–7+ years’ experience) capable of engaging in nuanced, technical conversations with senior decision-makers. Their bilingual English/French team leads contextual, research-backed calls supported by coordinated LinkedIn and email sequences. With a 7-day onboarding process, strict qualification (BANT), and measurable ROI tracking, Profitbl consistently generates revenue-ready meetings and not just call volume.

Strengths:

• Senior SDRs with 5–7+ years of technical selling experience
• Bilingual English/French callers with European market expertise
• 7-day onboarding and GTM creation
• Deep specialization in Cybersecurity, Fintech, HR Tech, and SaaS
• Multichannel framework supporting contextual calling
• Focus on BANT-qualified meetings, not volume

Website

2. Remote Aids

Best for: B2B companies seeking offshore cold calling teams with strong cost efficiency and rapid scaling capability.

Remote Aids provides outsourced cold calling and SDR support through an offshore talent model designed for high-volume outreach at competitive rates. Their SDRs execute structured calling scripts supported by basic multichannel outreach to generate qualified appointments for SaaS, IT, and service-based businesses. While their SDRs typically have less technical specialization than enterprise-focused agencies, Remote Aids stands out for affordability, fast deployment, and flexibility. It is particularly suitable for companies looking to ramp up call activity quickly without the cost burden of recruiting or training internal SDRs.

Strengths:

• Cost-effective offshore SDR teams
• Fast deployment and easy scalability
• High calling volume and predictable cadence
• Suitable for companies testing or supplementing outbound

Services:

• Cold calling and appointment setting
• Lead generation and qualification
• Multichannel outreach support (email + phone)
• CRM logging and basic reporting

Website

3. Abstrakt

Best for: B2B service companies needing structured cold calling paired with marketing-driven lead generation.

Abstrakt Marketing Group is a US-based outbound provider known for blending cold calling with marketing and content-driven lead nurturing. Their SDRs run consistent, high-quality calling programs designed to qualify prospects and feed the pipeline for companies across multiple industries, including commercial services, and professional services. Abstrakt emphasizes long-term pipeline development rather than quick-win dialling, making them an ideal partner for businesses wanting a steady stream of conversations supported by marketing assets and brand-driven messaging.

Strengths:

• Cold calling supported by marketing and content assets
• Strong focus on long-term pipeline development
• Broad industry expertise across B2B services
• Scalable calling teams with structured workflows

Services:

• Cold calling and appointment setting
• Lead nurturing and follow-up programs
• Content marketing support
• CRM and reporting integration

Website

4. MemoryBlue

Best for: Global SaaS and tech companies needing large-scale, process-driven calling teams.

MemoryBlue is one of the largest outbound sales development organizations in the world, with 650+ SDRs operating across 30+ countries. Their cold calling programs are supported by MemoryBlue’s internal academy, where SDRs receive structured, ongoing sales training before being deployed on client accounts. The company specializes in enterprise technology, ensuring callers are prepared for sophisticated and technical conversations. With strong management processes, global reach, and the recent integration of Operatix, MemoryBlue is a top choice for companies needing high-volume, professionalized calling operations.

Strengths:

• 650+ SDRs with global multilingual coverage
• Internal academy with structured SDR training
• Deep specialization in complex B2B tech
• Global presence across 30+ countries
• Strong enterprise processes and analytics
  

Services:

• Cold calling and inside sales
• SDR outsourcing
• Sales training and SDR academy
• Marketing-supported outbound campaigns

Website

5. Belkins

Best for: SaaS and B2B companies wanting cold calling integrated into a broader lead-gen engine.

Belkins is a global lead generation agency combining cold calling with email, LinkedIn outreach, and marketing enablement. Their SDRs use a research-driven approach supported by Belkins’ proprietary deliverability tools (Folderly, Frostbite), ensuring outreach sequences warm up prospects effectively before calls. While Belkins is not exclusively a cold calling agency, their SDRs are trained to run consultative conversations that qualify prospects and hand off ready-to-buy leads. With multi-time-zone teams and 2,000+ clients served, Belkins is a strong choice for B2B companies seeking a hybrid outbound partner.

Strengths:

• Strong global brand with 2,000+ clients
• Proprietary tools improve outreach and call conversions
• Multichannel outreach supporting warm calling
• Flexible programs for SMBs and mid-market SaaS
• Broad industry coverage

Services:

• Cold calling and appointment setting
• Multichannel lead generation (email + LinkedIn)
• Account-based marketing
• Data enrichment and list building
• Deliverability and infrastructure optimization

Website

6. Whistle

Best for: B2B companies seeking high-velocity calling powered by AI-enhanced coaching and analytics.

Whistle combines traditional cold calling with AI-driven performance improvement tools. Their SDRs use live call analytics, conversation intelligence, and scripted frameworks enhanced by AI prompts to improve call quality and consistency. This makes Whistle effective for organizations needing high call throughput with improved coaching and message alignment. Though not as specialized in enterprise tech as some competitors, Whistle excels at delivering structured, measurable calling programs supported by real-time coaching technology.

Strengths:

• AI-powered coaching and conversation intelligence
• High call volume with consistent quality
• Strong reporting and analytics infrastructure
• Scalable SDR teams with predictable workflows
  

Services:

• Cold calling and appointment setting
• Conversation intelligence and call analytics
• Multichannel outbound support
• SDR coaching and performance optimization

Website

7. The Sales Factory

Best for: North American B2B SaaS and service companies needing professionally trained callers and structured outbound processes.

The Sales Factory delivers strategy-led cold calling supported by SDRs trained in its internal academy. Their reps focus on consultative conversations, strong discovery, objection handling, and qualification, making them effective for companies needing more than scripted calling. With operations across Canada and the U.S., The Sales Factory also offers AE support and broader outbound programs, enabling clients to build full-cycle outbound systems without hiring internally. They are especially suitable for North American firms wanting dependable, high-skill callers.

Strengths:

• SDR academy ensures consistent calling quality
• Strong discovery and consultative approach
• Supports both SDR and AE functions
• Robust playbook creation and outbound strategy

Services:

• Cold calling and appointment setting
• SDR outsourcing
• AE outsourcing and customer success support
• Outbound strategy and sales playbooks

Website

Conclusion: Cold Calling That Converts

Cold calling isn’t dying. It’s evolving.

And for companies selling complex B2B solutions, it’s becoming one of the most reliable channels for generating a qualified pipeline.

The firms in this list represent the best of what modern cold calling can achieve: smart targeting, experienced SDRs, and structured outbound systems that produce real opportunities.

If you want European coverage, predictable revenue, and conversations that actually convert, you need more than a call center. You need a partner who understands your market and your buyers.

👉 Book a 30-minute discovery call with Profitbl to see how our senior SDRs deliver BANT-qualified meetings in as little as seven days.

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