Find the right prospects, research why they’re a fit, and reach them on LinkedIn and email from one place. Cluster brings AI prospecting, enrichment, signals, sequencing, and reply management together, so your team can spend less time moving leads between tools and more time starting useful conversations.
| Feature | Cluster |  |
|---|---|---|
| Prospect sourcing across data sources | Yes | LinkedIn search + imports |
| AI web research and custom qualification | Yes | No |
| Verified work email finding | Yes | Yes |
| Hiring, funding and job-change signals | Yes | No |
| LinkedIn post-engagement sourcing | Reactions + comments | Reactions |
| Automated LinkedIn sequences | Yes | Yes |
| Native email sequences | Yes | No |
| LinkedIn + email in one sequence | Yes | Via integrations |
| Unified LinkedIn + email inbox | Yes | No |
| AI agent access through MCP | Yes | Yes |
| Campaign and reply analytics | Yes | Yes |
| Sender rotation within a campaign | One sender per channel | Yes |
| Agency white-label | No | Yes, on agency plans |
HeyReach is built to scale LinkedIn outreach. Cluster also handles the work that comes before the first message: finding companies and buyers, enriching contact details, and researching fit. Describe your target customer, review the qualified prospects, and turn the result into a campaign without rebuilding the audience in another system.
Cluster has both a LinkedIn sequencer and an email sequencer, with mixed-channel campaigns in the same product. Set the message order and delays once. HeyReach connects to separate email platforms for multichannel outreach; Cluster keeps both channels in its own campaign workflow.
Use hiring, funding, job changes, or LinkedIn engagement to find relevant prospects. Cluster’s research agents can check company and persona fit, record supporting evidence, and create personalized copy. HeyReach can import post reactors and find emails; broader research and signal coverage come through connected tools.
Work through Claude or Codex to source leads, run custom research, prepare campaigns, and review replies. Cluster’s shared tables keep the work auditable, so you understand how agents are finding high intent leads. Both products support MCP; Cluster’s agent capabilities span prospecting, enrichment, signals, and outreach.
Cluster brings LinkedIn and email campaign conversations into one inbox, with a merged timeline and reply classification. Review the history and respond on the right channel without piecing it together across separate sending tools. HeyReach’s native unified inbox focuses on LinkedIn conversations only across its connected accounts.
“We created highly targeted campaigns that have ripped for us - all directly in Claude. I just wispr flow into Claude and it does all the work”
Alejandro Zaniolo
Co-founder @ Signals
“Cluster has helped us scale our top of funnel through lead research and management.”
Austin Mao
CEO @ Modern Industrials
“Cluster helps me run highly targeted outbound campaigns through Claude. It's unlocked this new channel for us”
Max Werner
Founder & CEO @ Chambas AI
Bring your target market and your outreach idea. Cluster helps you find the people, research the context, and run LinkedIn and email outreach in one workspace. You set the direction, review the work, and take over when the conversation starts.