Companies that use Plain
34 companies use Plain, as of October 2026.
Plain: API-first support. We've found 34 companies using Plain, most often in Software (39%) and Engineering, Product and Design (13%), typically with 11–50 employees and 68% based in United States.
Plain customers also use
How much more likely Plain customers are to use each tool than the average company.
PylonSupport & Docs259×more likely
AttioSales & CRM145×more likely
RemotePeople & HR102×more likely
GitHubDev Tools82×more likely
LinearDev Tools74×more likely
RudderStackAnalytics63×more likely
SafeBaseSecurity & Compliance60×more likely
MintlifySupport & Docs58×more likely
WorkOSAuth & Identity56×more likely
LoomCollaboration55×more likely
incident.ioMonitoring53×more likely
HackerOneSecurity & Compliance49×more likely
What kind of companies use Plain
Segments where Plain customers are more common than among all the companies we track.
- Software39% of customers6.5×more likely
- 1–10 employees18% of customers3.2×more likely
- 11–50 employees32% of customers1.8×more likely
Industry
Company size
Country
Breakdowns cover the 32 customers with company details so far.
Alternatives to Plain
Other tools in the same category, by how many companies use them.