# Companies API Won't Filter **URL:** \ **Category:** English\ **Tags:** api\ **Created:** [Janvier 26, 2026, 7:44 UTC](https://community.brevo.com/t/companies-api-wont-filter/6933 "2026-01-26T07:44:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![WomderWare](https://avatars.discourse-cdn.com/v4/letter/w/df705f/32.png) [@WomderWare](https://community.brevo.com/u/WomderWare)\ **Post date:** [Janvier 26, 2026, 7:44 UTC](https://community.brevo.com/t/companies-api-wont-filter/6933/1 "2026-01-26T07:44:45Z")
I am currently trying to use an API call in [Make.com](http://Make.com) (because the Make app is very very thin and omits what looks like more than half of the endpoints). I want to try to match a company based on either the company name, or an external ID but I am unable to get the filter to work. I have tried multiple variations of the filter but it gets ignored every time. I’ve also been unable to get it to work in Postman. ![Screenshot 2026-01-26 at 18.43.16](https://europe1.discourse-cdn.com/flex013/uploads/brevo/original/2X/2/2afa54965c099baa80b81c2faac03b34a4ebd548.png) What am I doing wrong? ---
**Author:** ![adam](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/adam/32/1337_2.png) [@adam](https://community.brevo.com/u/adam)\ **Post date:** [Février 21, 2026, 5:11 UTC](https://community.brevo.com/t/companies-api-wont-filter/6933/2 "2026-02-21T17:11:37Z")
Hi @WomderWare! I can see the issue in your screenshot. In the Query String section, instead of using `attributes.companynumber` as the **key** , you need to wrap it inside a `filters` JSON object: - **Key:** `filters` - **Value:** `{"attributes.companynumber": "your_value_here"}` The `/v3/companies` endpoint only accepts filters through the `filters` parameter as a JSON string — individual attribute keys passed directly as query params are ignored. [Make.com](http://Make.com) will handle the URL encoding automatically. Can you let me know if that helps?