Employee Number Lookup

Headcount tells you what you're dealing with before you spend a minute on it. A ten-person startup and a ten-thousand-person enterprise don't buy the same way, don't talk the same way, and rarely fit the same playbook.

Sales uses it to filter target lists and prioritize inbound. Research uses it to size markets, then tracks it over time to see who's hiring, who's flat, and who's shedding people.

This is a free preview of the Enrich Layer Company API. The full API returns headcount with industry, location, founded year, and funding signals for one company or your entire CRM.

Most teams build their ICP on industry and revenue and call it done. Headcount is the missing axis. A fifty-person SaaS and a fifty-thousand-person SaaS run different ops, buy different tools, and report to different people, even when they share a vertical.

Filter your target list by company size and you stop burning rep hours on accounts that were never going to close. The right band cuts more noise than any other firmographic on the list.

Generic outreach gets generic replies. A pitch about saving the one ops hire ten hours a week lands at a twelve-person startup. That same pitch dies at a twelve-thousand-person enterprise that wants to hear about uptime, SOC 2, and named support.

Pull headcount before the first line and you're writing to the actual buyer instead of an imaginary one. Reply rates follow.

In the US, every business that hires anyone has an Employer Identification Number — a nine-digit code from the IRS. It ties the entity to its tax filings, payroll runs, and business bank accounts. You see it on W-2s, on loan paperwork, on every form a state agency cares about.

For sales prospecting, the EIN is the wrong handle. EINs are private, often deliberately shielded, and tell you nothing about size, shape, or buying behavior. Domain, LinkedIn URL, and headcount move you forward faster — which is what this lookup uses, and what the full Enrich Layer Company API is built around.