The best LinkedIn lead generation agencies for B2B companies include Infinite, Cleverly, Belkins, Stop The Scroll, and several specialized firms that each bring different strengths to outbound campaigns. The right choice depends on your budget, target market, and whether you need LinkedIn-only outreach or a multi-channel approach.
At Infinite, we’ve scheduled 25,000+ meetings for B2B clients since 2021 and maintain a 47% conversion rate from initial outreach to active sales conversations. That experience has given us a clear view of what separates effective LinkedIn lead generation from campaigns that waste time and money.
This guide breaks down the top agencies in this space, including what each does best, typical pricing, and who they’re suited for. We’ll cover both full-service agencies and automation platforms so you can evaluate all your options.
Why LinkedIn Lead Generation Works for B2B Companies
LinkedIn generates roughly 80% of all B2B social media leads. The platform’s professional user base and detailed filtering by job title, industry, company size, and seniority make it possible to reach decision-makers with precision that other channels can’t match.
But effective LinkedIn outreach requires more than sending connection requests. Messages need to be personalized, sequenced properly, and sent within LinkedIn’s daily limits. Most companies don’t have the internal bandwidth to run consistent outreach while also managing sales conversations.
This is where specialized agencies come in. A good LinkedIn lead gen partner handles:
- Prospect research and list building
- LinkedIn profile optimization
- Custom message sequences for each target persona
- Daily campaign management and follow-ups
- Lead qualification before handoff to your sales team
The result is a predictable pipeline of qualified conversations without your team spending hours on cold outreach.
What to Look for in a LinkedIn Lead Generation Agency
Before comparing specific agencies, here are the criteria that matter most:
Targeting methodology. The best agencies spend significant time on research. At Infinite, roughly 50% of campaign development time goes into prospect research and segmentation. This upfront work determines whether you reach the right people.
Message personalization. Generic templates get ignored. Look for agencies that write custom sequences for each of your ideal customer profiles rather than using the same script for everyone.
Transparency and reporting. You should have real-time visibility into connection rates, response rates, and meetings booked. Agencies that hide this data often have something to hide.
Multi-channel capability. LinkedIn-only campaigns work, but combining LinkedIn with email outreach can increase reach by 40-60%. Consider whether you want a single-channel specialist or a partner who can coordinate across multiple touchpoints.
Industry experience. Agencies with experience in your sector will write better messages and target more accurately from day one.
Top LinkedIn Lead Generation Agencies Compared
| Agency | Core Services | Best For | Starting Price |
| Infinite | LinkedIn outreach, email campaigns, prospect research, lead qualification | Tech and B2B companies wanting data-driven targeting with minimal effort | $1,697/month |
| Cleverly | Managed LinkedIn campaigns, copywriting, analytics | SMBs needing turn-key LinkedIn outreach | Custom pricing |
| Belkins | Multi-channel outbound (LinkedIn + email + phone), appointment setting | Companies seeking quality leads via multi-touch outreach | $2,000-4,000/month |
| Stop The Scroll | LinkedIn content creation, strategy, engagement | B2B brands focused on content-driven lead generation | Custom pricing |
| Impactable | LinkedIn prospecting + LinkedIn Ads, CRM integration | Companies wanting paid + organic campaigns together | Custom pricing |
| Martal Group | Outsourced SDR teams, LinkedIn + email, lead nurturing | Tech companies needing dedicated outbound teams | Custom pricing |
| Callbox | Full-service lead gen (LinkedIn + email + phone), appointment setting | Enterprise B2B with complex sales cycles | Custom pricing |
| CIENCE | Scalable B2B outreach with AI-driven platform | Mid-to-large organizations needing scale | Custom pricing |
Infinite: Data-Driven Outreach for Tech and B2B Firms
Infinite specializes in LinkedIn lead generation and email outreach with a strong track record in technology, SaaS, fintech, and cybersecurity.
What makes Infinite different: We achieve a 47% conversion rate from initial outreach to active sales conversations. Nearly half of the prospects we contact end up engaging in real dialogue. Clients also report closing deals at 3x higher rates compared to their previous lead gen methods.
This comes from rigorous targeting. Our team spends roughly half of campaign development time on prospect research and segmentation, achieving 97% targeting accuracy in reaching relevant decision-makers.
Services include:
- Complete LinkedIn profile optimization
- Custom message sequences for each ideal customer profile
- Advanced prospect research using a database of 300+ million verified contacts
- Real-time campaign analytics and lead scoring
- Hot lead notifications via WhatsApp and email
- Fundraising campaigns for startups seeking investors
Results from actual campaigns:
- CyVers (Web3 security): 692 warm leads in 12 months at $23 cost per lead
- Aurora Labs (automotive software): 110 qualified meetings in 3 months at $60 per lead
- BridgerPay (fintech): 163 warm leads in 6 months with 62% conversion to opportunities
Pricing: LinkedIn lead generation starts at $1,697/month with a 3-month minimum. Email outreach starts at $1,199/month. These include full managed service with strategy, copywriting, automation, and reporting.
Time commitment: We handle 95% of the work. Clients spend 15-20 minutes daily responding to qualified leads we deliver.
Best for: B2B tech companies, SaaS firms, fintech, cybersecurity companies, and IT services that want a hands-off solution with measurable ROI.
Cleverly: Turn-Key LinkedIn Outreach for SMBs
Cleverly focuses exclusively on LinkedIn outreach for B2B clients. They handle targeting, messaging, and lead delivery as a fully managed service.
What makes Cleverly different: Their team writes copy in your voice, which helps messages feel authentic rather than templated. They’ve run campaigns for over 10,000 clients and showcase 100+ case studies on their site.
Services include:
- Prospect list building via LinkedIn Sales Navigator
- Personalized connection requests and follow-up sequences
- LinkedIn profile optimization
- Campaign reporting and analytics
Pricing: Custom pricing based on campaign volume and complexity.
Best for: Small to mid-sized B2B companies that need LinkedIn leads without hiring internal SDRs. Works well for startups, agencies, and service providers.
Belkins: Multi-Channel Outbound and Appointment Setting
Belkins is a full-service B2B lead generation agency with a strong reputation for appointment setting. They’ve served 1,000+ clients across 50+ industries and maintain a 4.9/5 rating on Clutch.
What makes Belkins different: They emphasize quality over quantity with manual lead research and verification. Their specialists individually verify every contact before outreach begins.
Services include:
- Targeted list building across multiple data sources
- LinkedIn outreach and messaging
- Cold email campaigns
- Cold calling and teleprospecting
- Appointment setting directly on your calendar
Results: Under optimal conditions, Belkins can deliver up to 400 qualified appointments per client per year through their multi-channel approach.
Pricing: Packages typically range from $2,000-4,000/month for limited engagements, up to $8,000+/month for higher volumes. Contracts usually run 6-12 months.
Best for: Mid-sized to large B2B companies that want an outsourced team handling the entire top-of-funnel, especially if you need LinkedIn combined with phone and email outreach.
Stop The Scroll: LinkedIn Content and Engagement Specialists
Stop The Scroll is a boutique agency focused exclusively on LinkedIn marketing for B2B brands. They concentrate on building LinkedIn presence through content rather than traditional cold messaging.
What makes Stop The Scroll different: They focus 100% on LinkedIn. Every client works directly with senior strategists rather than junior staff. Their approach centers on thought leadership content, LinkedIn native video, and audience engagement to generate inbound interest.
Services include:
- LinkedIn ghostwriting for posts
- Personal profile optimization
- Engagement strategies and networking
- LinkedIn ad campaigns
Pricing: Custom pricing based on scope.
Best for: B2B companies that believe in content-driven lead generation. Particularly suited for founders and executives who want to build visibility and credibility among LinkedIn’s professional audience.
Impactable: Combining LinkedIn Ads with Outreach
Impactable (based in San Antonio, Texas) manages both paid LinkedIn advertising and organic outreach strategies. Their approach coordinates ad campaigns with personal outreach for a multi-touch effect.
What makes Impactable different: They run targeted LinkedIn ads to warm up audiences while simultaneously sending connection requests from personal profiles. This coordination can significantly increase response rates.
Services include:
- LinkedIn prospecting and messaging
- LinkedIn ad campaign management
- CRM integration
- Campaign strategy and analytics
Pricing: Custom pricing based on scope and ad budget.
Best for: Companies with resources to invest in LinkedIn ads who want paid and organic efforts managed together. Works well for B2B firms with longer sales cycles where multiple touches are needed.
Martal Group: Outsourced SDR Teams for Tech Companies
Martal Group provides dedicated teams that function as an extension of your own sales organization. When you hire Martal, you get a project manager, SDRs, researchers, and copywriters assigned to your account.
What makes Martal Group different: They’ve operated for over a decade with a focus on the technology sector. Their team of 100+ senior sales executives and internal database of over 100 million B2B contacts power their campaigns.
Services include:
- Fully managed LinkedIn and email outbound campaigns
- Dedicated SDR teams assigned to your account
- Prospect research and targeted list building
- Lead qualification and nurturing
- Ongoing campaign optimization
Pricing: Custom pricing based on scope and team size.
Best for: B2B tech and IT companies that need to ramp up outbound leads quickly and want a partner deeply familiar with technical sales. Works well as a long-term outsourced SDR operation.
Callbox: High-Touch Multi-Channel Campaigns for Enterprise
Callbox is a veteran B2B lead generation company operating since 2004 with presence in the US and Asia-Pacific. They combine LinkedIn outreach with phone and email for companies with complex, enterprise-level sales processes.
What makes Callbox different: They assign dedicated outreach teams that engage prospects in live conversations, not just through text. Their specialists might initiate contact on LinkedIn, then follow up with phone calls to qualify leads in real time.
Services include:
- LinkedIn outreach and messaging
- Email marketing drip campaigns
- Cold calling and teleprospecting
- Account-based marketing targeting multiple stakeholders
- Lead management platform for tracking interactions
Pricing: Custom pricing based on campaign scope and channels.
Best for: Enterprise and mid-market B2B companies, especially in tech, consulting, or telecom with higher-value deals and longer sales cycles. Works well when you need persistence and multiple channels to reach senior decision-makers.
CIENCE: Tech-Enabled Outreach at Scale
CIENCE is a globally recognized B2B lead generation provider known for blending human expertise with technology. They have over 1,000 employees worldwide and use their proprietary platform (CIENCE GO) for real-time analytics and AI-driven optimization.
What makes CIENCE different: They can deploy large SDR teams quickly and leverage machine learning to continuously improve campaign performance.
Services include:
- Multi-channel sequences (LinkedIn, email, phone, chat)
- Proprietary AI-driven analytics platform
- Large SDR team capacity
- Pay-per-appointment pricing options
Pricing: Custom pricing based on scope. Fully managed services typically start in the thousands per month.
Best for: Mid-to-large B2B organizations that need a scalable lead generation engine with sophisticated analytics and the ability to handle high volumes.
How to Choose the Right Agency for Your Business
The right LinkedIn lead generation partner depends on several factors:
Budget: Entry-level managed services typically start around $1,500/month, while comprehensive multi-channel campaigns with dedicated teams can run $4,000/month or more. Get quotes from multiple agencies to compare value.
Internal capacity: If you want true done-for-you service with minimal time investment, agencies like Infinite, Cleverly, or Belkins are good fits. For enterprise needs with dedicated teams, consider Martal Group or Callbox.
Channel requirements: For LinkedIn-only outreach, Cleverly or Stop The Scroll specialize in that channel. For multi-channel campaigns combining LinkedIn with email and phone, consider Infinite, Belkins, Callbox, or CIENCE.
Industry focus: Ask about experience in your sector. Agencies with relevant case studies will write better messages and target more accurately from day one.
Metrics transparency: Before signing, understand exactly what reporting you’ll receive. Connection rates, response rates, meetings booked, and cost per lead should all be trackable.
Questions to Ask Before Hiring a LinkedIn Lead Gen Agency
When evaluating potential partners, these questions can reveal a lot:
- What’s your average connection acceptance rate and response rate across campaigns?
- How do you research and build prospect lists?
- Who writes the outreach messages and how are they personalized?
- What does your reporting dashboard include?
- How quickly do most clients see their first qualified leads?
- Do you have case studies in my industry?
- What’s the minimum commitment period and why?
Strong agencies will have specific answers with data to back them up. Vague responses are a red flag.
Start Filling Your Pipeline
LinkedIn remains one of the most effective channels for B2B lead generation. The right agency or tool can turn it into a consistent source of qualified conversations.
At Infinite, we’ve helped 200+ B2B companies build predictable pipelines through precision-targeted outreach. Our clients typically see qualified leads within the first few days of campaign launch, with an average 10:1 ROI across campaigns.
If you’re ready to stop chasing cold leads and start closing real deals, contact us to discuss your campaign strategy.
