What Firmable is
Firmable sits in the lead generation APIs corner of the B2B go-to-market stack. In the vendor's own words: “Largest ANZ AI-powered B2B database.” Put plainly, a tool in this category serves leads and contact data over an API instead of a UI.
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. Firmable sits in the lead generation APIs 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 Firmable with M for Mercury
Firmable 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 Firmable is set up to do next.
Questions people ask about Firmable
What is Firmable?
Firmable is one of the lead generation APIs used by B2B sales, marketing and recruiting teams. In the vendor's own words: Largest ANZ AI-powered B2B database.
What category does Firmable fall into?
Firmable is listed under Lead Generation APIs in this directory.
What are the alternatives to Firmable?
The closest tools in the same categories are M for Mercury, Clay, Relevance AI, Apollo, Instantly. All 28 lead generation APIs listings sit on the Lead Generation APIs category page.
Can I use Firmable alongside M for Mercury?
Yes. Mercury runs the LinkedIn side — audiences, journeys, message writing, safe pacing across every sender and one shared inbox — and connects out through HubSpot, Salesforce, Zoho CRM, Attio, Slack, Zapier, Make, n8n, webhooks and its own API, so Firmable can stay exactly where it is in the stack.
Listed for reference. M for Mercury is not affiliated with Firmable, and no listing here is paid for. Product names and logos belong to their owners.
