Are you lacking leads and opportunities, despite having a solid product?
The problem rarely stems from the underlying problem. It often stems from outsourced prospecting . A good B2B prospecting agency transforms a traditional process into a meeting machine. Provided you choose the right one.
The 7 best B2B prospecting agencies compared
1. Scalability
4.9/5 ⭐⭐⭐⭐⭐(42 reviews)
Description
Scalability is a French agency specializing in multi-channel B2B prospecting. It supports startups, SMEs, and agencies in implementing scalable lead generation systems.
The agency also integrates artificial intelligence into its workflows: predictive scoring, dynamic personalization, automated enrichment... Each campaign is continuously optimized to maximize conversion rates.
Benefits
- High-end, ROI-oriented positioning
- Perfectly suited to Startups, SaaS and Tech sectors
- Expertise in cold email, LinkedIn, scraping, enrichment
- Advanced automation and proprietary internal tools
- Regular monitoring, clear reporting, continuous optimization
Disadvantages
- Not suitable for companies looking only for basic execution or volume without strategy
2. Growth Room
5/5 ⭐⭐⭐⭐⭐ ( 19 reviews )

Description
Growth Room is an agency specializing in B2B lead generation via LinkedIn and outbound email. Their strength lies in the quality of their writing, refined targeting, and integration of sales automation tools.
Benefits
- Quality content on prospecting
- Well-scripted LinkedIn campaigns
Disadvantages
- More Growth Marketing oriented, less outreach
- Less suitable for traditional SMEs and more mature startups
- No channels other than LinkedIn and email
3. Bulldozer
5/5 ⭐⭐⭐⭐⭐ ( 1 review )
Description
Bulldozer is a French outbound agency focused on volume and speed of execution. It stands out for its industrialized approach to inbound and prospecting, relying on automated sequences and simple but straightforward copywriting.
Their main target: companies looking to generate inbound and outbound appointments.
Benefits
- Rapid operational deployment
- Varied expertise in several areas of acquisition (Growth, SEO, cold emailing, etc.)
Disadvantages
Limited strategic support : by focusing on rapid implementation and large-scale management, the agency offers less optimization on long-term strategy (precise targeting, qualitative adjustments) than other more consultancy-oriented agencies.
4. 11x.ai
(No opinion yet)
Description
11x.ai isn't a B2B prospecting agency in the traditional sense, but a technology platform offering autonomous digital agents to automate sales prospecting. Its flagship agent, "Alice," acts as a virtual SDR.
Benefits
- Complete automation of prospecting, reducing the need for a dedicated SDR team.
- AI-powered message personalization.
- Continuous operation.
- Seamless integration with existing CRM tools.
Disadvantages
- Less human expertise in the prospecting process, which may not be suitable for all businesses.
- Requires precise initial configuration to align the agent with business goals.
- May not be suitable for niche markets where a highly personalized approach is essential.
5. Leadactiv
4.8/5 ⭐⭐⭐⭐⭐ ( 88 reviews )
Description
LeadActiv is a French outsourced prospecting agency that supports SMEs and mid-sized businesses in generating leads via email and LinkedIn. Their strength lies in their turnkey campaigns, scripts already tested across several sectors, and rigorous execution.
Benefits
- Good understanding of SME/ETI issues
- Clear frameworks, well-oiled process
- Campaigns that can be quickly deployed and adapted to French B2B
Disadvantages
- Less strategic personalization
- Little technological differentiation
6. Captain Prospect
(No opinion yet)
Description
Captain Prospect is an agency specializing in large-scale full-funnel operations. It combines database enrichment, intelligent segmentation, and highly targeted campaigns. It primarily targets SMEs and service companies.
Benefits
- Very good sourcing of leads and enriched data
- Large volume of messages sent
- Extensive experience in French-speaking markets
Disadvantages
- Very email-centric, not very multichannel
- Less personalization in messages
- Limited strategic support
7. Lalaleads
4.7/5 ⭐⭐⭐⭐⭐(41 reviews)
Description
Lalaleads offers a modern approach to outbound prospecting, combining cold email and LinkedIn. It highlights the quality of its sequence creation and a high level of automation. The agency works in particular with scale-ups and B2B tech companies.
Benefits
- Multi-channel approach and personalized sequences
- Accurate prospect tracking
- Startup-friendly positioning
Disadvantages
- Less suited to traditional sectors or the mid-market
- Pricing is difficult to read online
- Less human support throughout the campaign
Conclusion: Which B2B prospecting agency should you choose?
- Scalability stands out for its multi-channel strategy, rigor, and ROI focus. It's the most comprehensive agency for startups and more mature businesses.
- Growth Room is ideal for smaller startups looking for visibility.
- Bulldozer is suitable for structures that want volume without worrying about finesse.
- 11x is all about experimentation and automation, provided you have some time to iterate.
- LeadActiv stands out for its operational efficiency for SMEs/ETIs, with solid and quick-to-deploy campaigns.
FAQ
What is a prospecting agency?
It's a company that handles lead generation for its clients, through channels like email, LinkedIn, phone, or advertising. It can help with strategy, message writing, automation, and reporting.
How to choose a B2B prospecting agency?
Check these criteria:
- Multi-channel expertise
- AI Integration
- Tools used
- Personalization of messages
- Customer references
- Reporting methodology and process
Should you choose an agency or a freelancer?
A freelancer may be enough to test a market or a persona. But a structured agency like Scalability ensures more lasting results and better management.