Turn your target market into researched prospects and coordinated LinkedIn and email outreach. Cluster combines sourcing, enrichment, signals, and native sequencing in one place, with LinkedIn actions that run automatically. Your team can focus on reviewing the audience, improving the message, and handling the conversations that follow.
| Feature | Cluster | |
|---|---|---|
| Company and people sourcing | Yes | Yes |
| AI research and custom qualification | Yes | Yes |
| Contact enrichment across data sources | Yes | Yes |
| Buying Signals | Yes | Company level only |
| Hiring, funding and job-change data | Yes | Yes |
| LinkedIn post-engagement sourcing | Yes | No |
| Automated LinkedIn sequences | Yes | No |
| Scrape LinkedIn SalesNavigator | Yes | No |
| Automated email sequences | Yes | Yes |
| AI agent access through MCP | Yes | Yes |
| Campaign and reply analytics | Yes | Yes |
| Built-in call dialer | No | Yes |
Apollo sequences can include LinkedIn, but those steps create tasks for a rep to complete. Cluster can run LinkedIn invitations and follow-up messages automatically alongside email. Once you approve the campaign, scheduled LinkedIn touches can progress without someone working through a queue of manual social tasks.
Start with the companies and people who match your market, then ask the questions that reveal fit. Cluster can research hiring activity, business priorities, and relevant public evidence before you write. Apollo also offers AI research and enrichment; Cluster connects that preparation directly to automated outreach on both channels.
A relevant LinkedIn post can surface people already discussing the problem you solve. Cluster can source both commenters and reactors, check their company and role, and prepare personalized outreach. Combine that context with hiring, funding, or job changes to build a campaign around a concrete event.
Describe the audience in Claude or Codex, inspect the research, and turn the selected leads into a draft campaign. Cluster keeps sourcing, enrichment, sequencing, and inbox actions available to your agent. Apollo also has MCP and CLI access; the practical difference here is Cluster’s native automated LinkedIn execution.
Cluster’s campaign inbox combines LinkedIn and email history, so you can see the conversation and answer on the right channel. Classify replies and focus on the people who need attention. This keeps the response workflow connected to the same product that researched the prospects and sent the campaign.
“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 accounts, your ideal buyer, or a timely signal. Cluster helps you find and qualify the people, prepare the messages, and run LinkedIn and email outreach in one place. Review the work before launch, then focus on the replies.