8 Best B2B Telemarketing Agencies in 2025

In an era where inboxes overflow with cold emails and LinkedIn messages feel increasingly automated, one channel has quietly made a comeback. Can you guess what it is? The phone.

What’s old is now new, and B2B telemarketing has evolved far beyond the outdated image of call centers reading from scripts.

Today’s best firms blend data, strategy, and human connection, creating conversations that convert complex products into qualified pipeline.

Modern telemarketing offers something simple but powerful: real dialogue with real decision-makers.

In this article, we’ll compare the 10 best B2B telemarketing firms for 2025, explaining what makes each stand out, who they’re best suited for, and how they stack up in a market where conversation quality matters more than call volume.

What Makes a Great B2B Telemarketing Firm?

Before we dive into our vendor overviews, it’s worth asking: what actually separates the best telemarketing partners from the rest?

• Deep B2B understanding: The best agencies don’t just dial numbers. They speak your buyer’s language. B2B sales are complex and salespeople need to communicate value with authority.
  
• Multichannel integration: Just dialing numbers alone isn’t enough to deliver qualified pipeline. In the modern era, the best telemarketing companies support their phone phone efforts by supporting them with LinkedIn and email touchpoints.
  
• Senior callers, not interns: There are a lot of intangible benefits that experience SDRs deliver. One of those is knowing the language of your buyers, what makes them tick, and the ability to be confident as they deliver your message to your ICP. Overall, senior SDRs are able to deliver higher quality conversations.
  
• Qualification frameworks: Agencies that don’t employ some sort of qualification framework like BANT or SPICED aren’t worth your time. Why? Because they’re not delivering conversations with prospects who are more likely to actually become a customer.
  
• Transparency: The absolute best companies won’t be shy about sharing call recordings, real time data, and clear reporting about each the leads they’ve delivered, as well as your campaign status. 

💡Profitbl combines strategic GTM planning, senior SDR talent, and multichannel execution to help software companies build predictable outbound revenue.

Now, Who are the 10 Best B2B Telemarketing Companies?

1. Profitbl

Best for: B2B tech companies looking to break into English and French speaking European markets.

Profitbl is a specialist B2B telemarketing provider that helps tech companies break into European markets. With an omnichannel approach, they combine traditional cold calling, with data driven outreach through LinkedIn and email. Their senior SDRs all have 5+ years experience, and have successfully delivered pipeline for SaaS, Fintech, HR Tech and Cybersecurity brands. Profitbl’s multilingual team is perfect for companies looking to drive sales across English and French-speaking European markets. 

Profitbl combines traditional telemarketing with cold email and LinkedIn outreach to deliver BANT-qualified meetings for B2B tech companies. With a minimum of 5+ years experience, their senior SDRs have successfully delivered pipeline for SaaS, Fintech, HR Tech and Cybersecurity brands. Offering a rapid 7-day onboarding process, Profitbl helps their clients break into English and French-speaking markets in Europe. 

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2. Callbox Inc

Best for: B2B companies that want telemarketing tightly integrated into global, multi-channel lead generation and ABM.

Callbox is a global B2B marketing and sales support provider that treats telemarketing as one pillar in a wider, multi-touch demand generation engine. Their B2B telemarketing services focus on reinforcing activity from other channels, qualifying prospects, uncovering pain points, and setting appointments as part of an account-based campaign. They deliver calling programs through their own multi-channel CRM and automation platform (Callbox Pipeline), which combines data, call activity, and reporting into one environment for clients targeting North America, Europe, APAC, and LATAM.

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3. Calling Agency

Best for: Businesses that want a specialist cold-calling and telemarketing partner to create a steady flow of SQLs and appointments across multiple industries.

Calling Agency is a telemarketing and cold-calling specialist focused on scaling outbound while maintaining conversation quality. Their services cover B2B telemarketing, B2B appointment setting, and lead generation, supported by targeted data, ICP-driven scripts, and CRM-integrated reporting. They emphasize solving common telemarketing challenges such as poor targeting, scripted or pushy calls, inconsistent lead flow, and lack of transparency, using empathy-driven conversations, structured dialing cadences, and detailed call metrics to deliver sales-qualified leads and booked meetings rather than raw call volume.

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4. Intelemark

Best for: B2B organizations that want US-based agents focused on appointment setting and telemarketing-driven pipeline.

Intelemark is a US-based B2B telemarketing provider that builds sales pipelines “one call at a time,” with a strong emphasis on experienced U.S. callers and industry-specific campaigns. Their telemarketing offering spans appointment setting, lead generation, lead qualification, and campaign follow-up (e.g., direct mail/email, event support), along with telesales and customer reactivation/retention programs. Intelemark’s content leans heavily into campaign strategy, consistent outreach, and lead nurturing across complex B2B industries such as healthcare, technology, logistics, and manufacturing, positioning telemarketing as a core component of a full-funnel lead generation approach.

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5. Morise Marketing

Best for: Engineering, industrial, and manufacturing companies seeking experienced telemarketing agents to generate high-quality B2B leads and appointments.

Morise Marketing positions telemarketing as a practical, ROI-focused way for B2B organizations—particularly in engineering and product manufacturing—to reach relevant prospects and accelerate sales cycles. Their offering centers on experienced telecalling professionals who focus on pitching only to qualified audiences, building brand awareness, and securing appointments for high-ticket sales discussions. With more than 18 years of sales and marketing experience, the agency emphasizes reliable execution, real-time lead reporting, access to call recordings, and consistent delivery of marketing- and sales-qualified leads. Morise’s telemarketing services are designed for companies needing a straightforward, results-driven calling partner rather than a broad outbound engine.

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6. Blue Donkey

Best for: UK-based and international B2B brands that care about unscripted, high-quality conversations and brand-sensitive telemarketing.

Blue Donkey is an award-winning UK B2B telemarketing specialist that has focused exclusively on outbound B2B calling for more than 25 years. They differentiate themselves by rejecting heavily scripted call-centre methods and instead emphasize “intelligent,” unscripted conversations that protect and amplify clients’ brands. The agency positions its team as an extension of leading B2B brands, supported by granular reporting, quality management, and specialist training, making them a strong fit for organizations that prioritize relationship-building and brand integrity over high-volume dialing.

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7. Direct B2B

Best for: Canadian and North American businesses that want a telemarketing partner combining outbound calls, inbound handling, and wider business development.

Direct B2B is a Canada-based B2B telemarketing and business development provider offering proactive business development, telemarketing, cold calling, LinkedIn prospecting, and inbound call handling. Their telemarketing service is framed around the idea that the phone remains central to B2B interactions, with structured outreach used to secure first appointments and generate feedback from prospects. Direct B2B also highlights options like pilot projects, call-center style customer service, and AI-powered solutions, positioning the firm for companies that want both outbound prospecting and support for inbound customer calls from a single vendor.

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8. Lead Hunter

Best for: Companies selling into the DACH and wider European markets that need a telemarketing partner focused on high-value deals and complex B2B sales.

Lead Hunter is a European B2B telemarketing and lead generation agency that explicitly targets industries such as IT, healthcare, telecoms, finance, and automotive. Their proposition centers on acting as an extension of clients’ sales teams across Europe, handling address generation, CRM data management, lead qualification, and appointment setting for pre-qualified, “warmed-up” prospects. They emphasize advisory-style conversations over hard selling, long-term relationship building, and detailed reporting, positioning themselves as a fit for businesses with higher deal sizes and a need for experienced agents who speak the language of decision-makers.

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How to Choose the Right Telemarketing Partner

Now that you have a detailed overview of the best B2B telemarketing agencies, let’s discuss how to choose the best-fit partner for your brand. Below, we take you through some of the most crucial criteria you should consider:

• What’s their specialty? It goes without saying that your partner should specialize in B2B sales, but go a step further. Evaluate whether they have experience across the industries, verticals and geographies / languages you’d like to target as well.
  
• How do they measure meeting quality? Steer clear of vendors who don’t employ a lead qualification methodology. Two of the most common methods are BANT and SPICED. Another is MEDDIC. If your partner uses one of these methods then they’re more likely to deliver leads that will actually become paying customers.
  
• What’s their onboarding speed? Onboarding is fairly important, however, you don’t want to be stuck in admin forever. A one-week onboarding period is phenomenal, and two-week onboarding periods are great as well. If onboarding will take a month then you might want to look elsewhere.
  
• Do they provide full campaign transparency? The best b2b telemarketing providers will give you access to call recordings, live campaign data and more. Call recordings in particular will provide very useful insight for you as a client. You’ll be able to review conversations and provide feedback to your partner.

Conclusion: From Cold Calls to Consistent Revenue

Today’s best agencies blend strategic planning, experienced sales talent, and multichannel execution to deliver meaningful conversations that drive revenue.

If you’re a B2B software company looking to scale across Europe then consider partnering with a team that turns calls into conversations.

At Profitbl, we do just that. Book a 30-minute discovery call to see how our senior SDRs build predictable outbound pipelines across Europe.