---
ref: tool:lemlist/search-companies
name: Search companies
company: company:lemlist
workflows: []
access: [cli, api]
tags: [capability:find-prospects, category:sales-engagement, has:api, has:cli]
docs: https://developer.lemlist.com/api-reference/endpoints/people-database/search-companies-database
updated: 2026-09-27
---

# Search companies

Returns companies from lemlist's database that match filters such as industry, company size or technologies used, with their location, employee count and technologies.

Note: Filter ids come from `GET /database/filters`. Pages hold up to 500 companies, 100 by default.

## Set up

Use the first option your agent supports.

### CLI (official)

Install the command and sign in with it, then confirm it runs.

```sh
npm install -g @lemlist-official/cli
lemlist --version
```

Run `lemlist api POST /database/companies`.

### API (official)

- Base URL: https://api.lemlist.com/api
- Endpoint: `POST /database/companies`
- Auth: send the header `Authorization: Basic $LEMLIST_API_KEY`
- Get a key: https://app.lemlist.com/settings/integrations
- Docs: https://developer.lemlist.com/api-reference/getting-started/authentication

Note: `LEMLIST_API_KEY` holds the base64 of `:<api key>`, an empty username and the key; 20 requests every 2 seconds per key.

Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.

## Rules

- Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
- Never print API keys.