Top 10 Lead Generation Companies for Marketing Agencies

Getting consistent leads is one of the biggest challenges for any marketing agency. Even agencies that deliver great campaigns often struggle to keep their own pipelines full. That is why lead generation for marketing agency growth has become such an important focus today.

Instead of relying only on referrals or slow inbound traffic, many agencies now partner with lead generation companies that specialise in finding the right businesses, reaching decision-makers, and starting real conversations. These companies help agencies focus on what they do best, marketing, while lead generation runs in the background with a clear system.

Top 10 Lead Generation Companies for Marketing Agencies

The companies listed below are trusted by agencies that need reliable lead generation services. Each one supports B2B sales teams and marketing agencies with different outreach and demand-generation approaches.

Let’s take a closer look.

1. Virtual Sales Limited

Virtual Sales Limited is a UK-based company that helps marketing agencies and B2B brands to generate qualified leads through a structured outreach. They work closely with clients and understand the target audience before launching campaigns. Their approach solely focuses on quality conversations, and not just mere volume.

Why the Company Stands Out: Virtual Sales Limited puts strong emphasis on understanding buyer intent. At the same time, they align closely with agency sales goals. That’s why marketing teams like working with this company.

Key Services: 

B2B lead generation campaigns: Virtual Sales Limited designs outbound campaigns that focus on reaching decision-makers who match the client’s ideal profile.

Appointment setting: Their team qualifies prospects and books meetings directly into sales calendars.

Account-based marketing support: With Virtual Sales Limited, campaigns are tailored to specific companies instead of broad lists, improving relevance.

Sales pipeline support: Lastly, they also help agencies maintain steady deal flow through consistent outreach.

Revenue: $5 Million to $7 Million, Annually

Location: United Kingdom

Company Size: 10 to 49 employees

Pricing: $100 to $149 per hour

2. A-SALES AB

A-SALES AB is a sales outsourcing and lead generation company working with B2B marketing agencies across Europe and the UK. They help agencies scale outreach without building internal sales teams. Their process is structured and repeatable.

Why the Company Stands Out: A-SALES AB focuses on long-term sales partnerships. So agencies receive consistent support instead of one-off campaigns. And that’s why marketing agencies like to work with this company.

Key Services: 

Outbound lead generation: A-SALES AB runs outbound campaigns across email, phone, and LinkedIn to reach decision-makers.

Sales development teams: They also provide trained SDRs who represent the agency professionally.

Market entry support: The company also helps agencies enter new industries or regions with structured outreach.

Performance reporting: Lastly, with this company, agencies receive clear reports showing lead quality and campaign results.

Revenue: Their revenue is not disclosed

Location: London, United Kingdom

Company Size: 50 to 249 employees

Pricing: Less than $25 per hour

3. SalesAR

SalesAR is a lead generation agency that helps marketing agencies and B2B companies book qualified meetings. They focus on personalised outreach rather than generic messaging. Their campaigns are built around real prospect research.

Why the Company Stands Out: SalesAR emphasises personalization. As a result, outreach feels relevant and respectful, and that’s why marketing agencies like to work with them.

Key Services: 

Custom lead research: SalesAR builds prospect lists based on job roles, industries, and company size, helping teams to create customized marketing approaches.

Cold email outreach: The agency also helps marketing teams to create personalized campaigns to start genuine conversations.

Lead qualification: SalesAR also reviews prospects before passing to sales teams and that increases the chance of conversion.

Meeting scheduling: With this company, qualified leads are converted into booked meetings.

Revenue: The company revenue is not disclosed

Location: London, United Kingdom

Company Size: 50 to 249 employees

Pricing: Less than $25 per hour

4. novi.digital

novi.digital is a B2B-focused digital marketing agency that also offers lead generation services. They support marketing agencies that want to combine outreach with content and digital campaigns. Their work blends strategy with execution.

Why the Company Stands Out: novi.digital easily connects lead generation with broader digital marketing. So campaigns feel more aligned, and that’s why marketing teams like working with this company.

Key Services:

Lead generation strategy: novi.digital efficiently designs campaigns based on audience research and goals.

Content marketing: They also create content that attracts and nurtures leads over time, making long-term campaign goals easy.

Account-based marketing: novo.digital targets outreach toward specific high-value accounts, helping agencies to make impactful business relationships.

Campaign optimisation: the company also uses performance data to refine messaging and targeting for the marketing teams.

Revenue: $1 to $5 Millions annually

Location: Keele, United Kingdom

Company Size: 10 to 49 employees

Pricing: $150 to $199 per hour

5. Paragon Sales Solutions

Paragon Sales Solutions works with marketing agencies and B2B companies to generate qualified leads. They focus on outbound sales support and appointment setting. Their approach is hands-on and process-driven.

Why the Company Stands Out: Paragon Sales Solutions focuses on sales execution. At the same time, they adapt campaigns to each client. That’s why marketing teams like to work with this company.

Key Services: 

Outbound prospecting: Paragon helps the marketing team to reach decision-makers through a structured outreach.

Appointment setting: The company also converts qualified prospects into booked meetings.

Sales process alignment: They also align the campaign with the client’s sales stages, making conversion really easy for their clients.

Ongoing campaign management: Paragon also monitors campaigns and improves them continuously.

Revenue: Less than $5 Million per year

Location: Countesthorpe, United Kingdom

Company Size: 10 to 49 employees

Pricing: $25 to $49 per hour

6. Spring Drive

Spring Drive is a B2B lead generation company that works closely with marketing agencies and sales teams. They focus on building demand through clear positioning and targeted outreach. Their campaigns are designed to support long sales cycles.

Why the Company Stands Out: Spring Drive takes a thoughtful approach to outreach. Instead of rushing volume, they focus on relevance and clarity. And that’s the reason why agencies like to work with this company.

Key Services: 

B2B lead generation strategy: Spring Drive thoroughly builds outreach plans that are based on industry research and buyer needs.

Account-based marketing: The company’s campaigns target specific companies and roles to improve response quality.

Sales enablement support: They also align lead generation with sales messaging and positioning.

Campaign performance reviews: With this company, results are reviewed regularly to improve engagement and conversions.

Revenue: The revenue is not disclosed

Location: London, United Kingdom

Company Size: 2 to 9 employees

Pricing: $5,000 per project

7. Quantanite

Quantanite is a business services company that supports lead generation through managed teams. They work with marketing agencies that need scale and consistency. So their strength lies in process management and execution.

Why the Company Stands Out: Quantanite focuses on operational reliability. So agencies can scale lead generation without stress, and that’s why they prefer working with this company.

Key Services: 

Managed lead generation teams: Quantanite easily provides trained teams to handle outreach and qualification.

Data handling and research: The company also supports prospect research and list management, helping clients to generate only quality leads.

Multi-channel outreach support: Quantanite also runs campaigns across email, phone, and digital channels. 

Process optimisation: With this agency, workflows are improved over time to increase efficiency.

Revenue: $250 to $500 Million annually

Location: London, United Kingdom

Company Size: 1000 to 9,999 employees

Pricing: $25 per hour

8. Abacus Cambridge Partners

Abacus Cambridge Partners supports marketing agencies with data-driven lead generation and analytics. They help agencies make better decisions using insights rather than assumptions. Their work often supports enterprise clients.

Why the Company Stands Out: Abacus Cambridge Partners combines data and marketing expertise. As a result, campaigns are more informed, and agencies prefer working with them.

Key Services: 

Data-led lead generation: Abacus Cambridge Partners build campaigns using data insights and segmentation, generating only sales qualified leads.

Marketing analytics: The company also analyzes Performance data to improve targeting and messaging for their clients.

Customer journey mapping: They also help agencies to understand how prospects move through the funnel. This helps to create long-term business relations for their clients.

Strategic consulting: Abacus Cambridge Partners also advises their agencies on long-term growth and optimization.

Revenue: Less than $5 Million every year

Location: London, United Kingdom

Company Size: More than 3,000 employees, if counted with Abacus Consulting

Pricing: They offer custom pricing, contact them for your quote

9. Friday Solved

Friday Solved is a B2B sales and lead generation consultancy that works with marketing agencies and startups. They help businesses to design outbound systems that feel natural and effective. Their work blends strategy with execution.

Why the Company Stands Out: Friday Solved focuses on practical sales systems. So that agencies get clarity, and not complexity. That’s the reason why it is popular among its clientele.

Key Services: 

Outbound sales strategy: Friday Solved designs accurate outreach systems that match the client’s goals. 

Lead qualification frameworks: The company also filters Prospects to improve sales efficiency of their client agencies.

Sales messaging development: With this agency, messaging is refined to sound human and relevant.

Pipeline support: Friday Solved also provides guidance to Agencies on managing leads through the funnel, so that conversion process is smoother.

Revenue: The revenue is disclosed

Location: London, United Kingdom

Company Size: 2 to 9 employees

Pricing: $300 per hour

10. Lead Pronto

Lead Pronto is a lead generation company that connects marketing agencies with ready-to-talk prospects. They focus on delivering leads quickly while maintaining quality. That;s why their services are often used to supplement existing campaigns.

Why the Company Stands Out: Lead Pronto focuses on speed and accessibility. At the same time, they also maintain clear lead standards. That’s the reason why it’s liked by several marketing agencies.

Key Services: 

Pay-per-lead generation: Lead Pronto offers Agencies leads based on customized and agreed payment criteria.

Prospect matching: The company also matches Leads to the agency’s target audience, delivering more qualified leads to their clients.

Campaign setup support: Lead Pronto also helps to define lead requirements before launch, so that they can fish more sales qualified leads.

Delivery reporting: With this agency, agencies truly receive visibility into lead flow and campaign performance.

Revenue: less than $5 Million

Location: WIRRAL, England, United Kingdom

Company Size: 2 to 9 employees

Pricing: It’s usually $50 to $99 per hour. But they also offer a pay-per-lead model

Selection Criteria

To create this list, we did not simply look at company size or popularity. Instead, we focused on how well each company supports lead generation for marketing agency growth in real, everyday situations. The goal was to highlight companies that marketing agencies can rely on long term.

Depth of Lead Qualification

First, we evaluated how each company qualifies leads. Strong lead generation companies do more than pass names and email addresses. 

They take time to understand who the ideal client is, what problems they face, and whether there is real intent to talk. Companies that prioritise meaningful conversations over raw numbers ranked higher in our chart.

Experience with Marketing Agencies

Next, we looked closely at whether these companies have experience working with marketing agencies specifically. Lead generation for agencies is different from lead generation for SaaS or ecommerce. 

So the agencies need leads that understand services, retainers, and long sales cycles. So we selected companies that are familiar with this environment better.

B2B Marketing and Sales Alignment

Another key factor we focused on was alignment with B2B sales processes. That’s why we favored companies that understand account based marketing, multi-touch outreach, and longer decision timelines. 

The companies in the list know that B2B lead generation requires patience, follow-up, and relevance.

Scalability of Campaigns

Apart from all these, we also assessed whether each company can scale campaigns without losing quality. 

Agencies grow over time, and so the lead generation partners should be able to support that growth with repeatable systems, trained teams, and consistent delivery.

Transparency and Reporting

Finally, we reviewed how clearly companies communicate results. Reliable partners will always provide visibility into outreach activity, lead flow, and performance trends. 

Transparency helps agencies make better decisions and improve campaigns continuously.

Best Practices to Choose a Lead Generation Company

See, choosing the right partner is just as important as choosing the right clients. So you should always take a careful approach when you’re selecting a lead generation company for your marketing agency or teams.

Clearly Define Your Ideal Client First

Before reaching out to any provider, you should clearly define who you want to work with. This will include the industry, company size, budget range, and decision-maker roles of your prospects. When expectations are clear, lead generation campaigns perform far better.

Ask How Leads Are Generated and Qualified

Moreover, you should always ask how leads are sourced, contacted, and approved. A good partner will clearly explain their outreach process, research methods, and qualification steps. Vague answers on the other hand are often a red flag.

Look for Long-Term Thinking

Lead generation works best as an ongoing system, not a one-time push. That’s why you should choose partners who focus on steady pipeline growth rather than quick wins. Long-term thinking will usually lead you to better-quality clients, and strong business relationships.

Start Small and Measure Results

It is always smart to begin with a pilot campaign. This will help you to evaluate lead quality, communication, and overall fit before committing fully. That’s why a short test phase will prevent you from making costly mistakes.

Maintain Regular Feedback Loops

Once campaigns are running, you should share your feedback regularly. Good lead generation partners will adjust targeting, messaging, and volume based on real-world responses. Always remember that good collaboration will improve results over time.

How Manyreach Helps

Behind many lead generation campaigns is a strong outreach system. That’s why tools like Manyreach help lead generation companies and marketing agencies to manage outreach safely and efficiently.

It supports structured outreach by helping teams organize leads, manage inboxes, and send emails responsibly. It also includes a spam checker that reviews both the subject line and email body before campaigns go live. This helps identify risky words and patterns that could hurt deliverability.

In addition, Manyreach also provides an overall email health score, giving teams a clear view of how safe and effective their messages are. With these checks in place, agencies can focus on strategy and conversations while Manyreach handles outreach hygiene.

FAQs

1. What does lead generation for a marketing agency really involve?

Lead generation for marketing agencies involves identifying potential clients, and reaching out through targeted channels. This eventually turns into conversations that can turn into long-term agency relationships. The focus is on relevance, not just volume.

2. How do lead generation companies help digital marketing agencies grow?

They handle prospect research, outreach, and qualification so agencies can focus on delivering results for clients. This creates a more predictable sales pipeline.

3. Are lead generation services suitable for B2B marketing agencies?

Yes, B2B agencies often benefit the most because B2B sales require structured outreach, clear messaging, and patience throughout the outreach and buying process.

4. How can the agencies tell if a lead generation company is doing a good job?

Good performance always shows up in lead quality, responsiveness, and clear reporting. If a lead matches the target audience and conversations feel relevant, that means the partnership is working right.

5. Should agencies rely only on lead generation companies for growth?

No. Lead generation works best alongside content marketing, referrals, social media, and other digital marketing efforts. A balanced approach usually delivers the strongest results.

Conclusion

Strong lead generation for marketing agency growth does not happen by chance. It requires the right partners, clear systems, and reliable execution.

The companies listed in this guide help marketing agencies attract the right clients, start meaningful conversations, and build predictable pipelines. By choosing carefully and using the right outreach support, agencies can grow with confidence and consistency.