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Postman, Inc.
Postman makes software that helps developers build, test, and share the programming interfaces that let apps talk to each other.
Postman is a private software company. It sells tools that help programmers work with APIs. An API is the connector that lets one piece of software ask another for data or action, like a waiter carrying your order to the kitchen and bringing back your food. Every time you check the weather in an app, pay with a credit card online, or log in with Google, an API is doing the work behind the scenes. Postman's main product is an app where developers write, test, and organize those connectors instead of doing it by hand with messy code. The company makes money by selling paid plans to teams and businesses, with a free version that hooked most of its early users.
Think of Postman as a workshop bench for APIs. A single developer can use it for free to poke at an API and see what comes back. But when a whole company has hundreds of APIs, teams need to share them, track changes, test them automatically, and keep them secure. That is where the paid tiers come in, and that is where the real business lives. Postman says millions of developers use it, and its customers include most of the biggest tech companies, which gives it a strong grip on a daily habit.
The company started in 2012 as a small side project by Abhinav Asthana, who was frustrated by how tedious it was to test APIs. It grew through word of mouth among developers before raising venture money, and it now finds itself in a crowded field. Rivals like GitHub, which Microsoft owns, and newer API tools compete for the same developers. Postman has also pushed into AI features that help write and debug API code, plus tools for managing APIs across large organizations. Because it is private, its exact revenue and valuation are not public, though it has been valued in the billions in past funding rounds and is watched as a possible future IPO.
Saved answer · last researched 10 Oct 2026