Fastbase

What Fastbase is

Fastbase is a visitor identification tool in the B2B go-to-market stack. In the vendor's own words: “Turn your web visitors into real company names and the people behind them.” Put plainly, a tool in this category names the companies already visiting your site.

Where it sits in an outbound stack

Most outbound stacks are four layers: the data that decides who you talk to, the channel that carries the message, the writing that earns a reply, and the system of record that remembers what happened. Fastbase sits in the visitor identification layer. Tools beside it are worth comparing on coverage and price; tools in the other layers are worth wiring to it rather than replacing it with.

Using Fastbase with M for Mercury

Fastbase covers a slice of go-to-market that sits next to outbound rather than inside it. Mercury handles the LinkedIn half: audience, journey, message, pacing across senders, and one inbox for every reply. Where the two meet is usually the hand-off — Mercury pushes contacts and events out over webhooks, Zapier, Make, n8n or its own API, so a warm reply can trigger whatever Fastbase is set up to do next.

Questions people ask about Fastbase

Listed for reference. M for Mercury is not affiliated with Fastbase, and no listing here is paid for. Product names and logos belong to their owners.