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Top 25 API Documentation Management Software Companies (August 2026)

As of August 2026, Latka tracks 25 API documentation management software companies. They have combined revenues of $364.6M and employ 3.7K people. They have raised $440.7M and serve 510.2K customers combined.

Every company below sells API documentation management software to other businesses and is ranked by its most recent annual revenue. Revenue, funding, headcount and customer figures come from CEO interviews on the Latka podcast, public company filings, and Latka estimates where a company has not disclosed a number.

Companies
25
Revenue
$364.6M
Funding
$440.7M
Employees
3.7K

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Sorting: Highest -> Lowest

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Top API Documentation Management Software Companies by revenue

Showing 10 of 25 companies ranked by annual revenue.

1Postman logo
Postman

San Francisco, California, United States

a collaboration platform for API development, allowing users to design, develop, and test APIs more efficiently.

Revenue
$313.1M
Customers
500K
Year founded
2014
Funding
$433M
Team size
3.3K
2ReadMe logo
ReadMe

San Francisco, California, United States

Beautiful, personalized, interactive developer hubs

Revenue
$10.7M
Year founded
2015
Team size
71
3Chills logo
Chills

Oslo, Oslo, Norway

Chills enables safe and secure data management, understandable for both business and IT. Customers own their backend, graphically showing all data flows in a structured manner, without additional data storage. The simplicity allows less skilled programmers to make integrations, automation and data processing flows. Documentation is provided with one click, clarifying the work done for other developers, auditors and GDPR authorities. Revised data flows run in a test environment parallel to the operation using the same data. Chills is delivered from a secure cloud of your choice.

Revenue
$7.7M
Year founded
2019
Team size
70
4Gram by Speakeasy logo
Gram by Speakeasy

San Francisco, California, United States

Speakeasy is a platform that provides developers with the tools they need to craft exceptional API experiences. You can use Speakeasy to generate SDKs, build MCP servers, create Terraform providers and automate documentation.

Revenue
$5.1M
Year founded
2022
Team size
46
5Escape logo
Escape

San Francisco, California, United States

Escape is the only DAST that works with your modern stack and tests business logic instead of missing headers. It fits right into your modern stack, supporting modern web frameworks, APIs, CI/CD, and Wiz without hassle. With Escape, you can: 1. Document all your APIs & Web Apps in minutes and enrich your inventory with seamless integrations. 2. Discover vulnerabilities even at a business logic level with our proprietary AI-powered algorithm. 3. Remediate issues efficiently with code snippets tailored to each framework

Revenue
$4.4M
Funding
$6M
Team size
40
6API7.ai logo
API7.ai

United States

API7.ai is the leading infrastructure company that empowers API Management and Analysis. In 2019, API7.ai donated the fattest and most feature-rich open-source API Gateway (APISIX) to the Apache Software Foundation and supports FinTech, Insurance, Telecoms, and Banks in confidently managing API transactions.

Revenue
$4.1M
Year founded
2019
Team size
37
7Theneo logo
Theneo

San Francisco, California, United States

Stripe-like API Docs in just a few clicks

Revenue
$3.5M
Year founded
2022
Team size
23
8Fern logo
Fern

New York, New York, United States

Input OpenAPI. Output SDKs and API documentation.

Revenue
$3.3M
Year founded
2022
Team size
22
9i4i logo
i4i

Toronto, Ontario, Canada

Developer of structured content application designed to specialize in the delivery of XML or SGML document processing software. The company's structured content application is based on its patented S4 Technology which synchronizes applications and data to provide the delivery of enterprise data, enabling businesses with all forms of data to be available to all processes in the enterprise.

Revenue
$3.2M
Year founded
1993
Team size
39
10TeejLab logo
TeejLab

Burnaby, British Columbia, Canada

TeejLab is an Information Technology & Services company that offers API management solutions. They provide services such as company profile and funding, valuation and investors, overview, news and competitors, and information technology and services. TeejLab has achieved a revenue of $1.1M and has a team of 13 people in 2023.

Revenue
$2.6M
Year founded
2017
Team size
15

Frequently asked questions about API Documentation Management Software Companies

How many API documentation management software companies are there?

Latka tracks 25 API documentation management software companies with reported revenue. Together they generate $364.6M in annual revenue and employ 3.7K people.

Which API documentation management software company is the largest?

Postman is the largest, with $313.1M in annual revenue, founded in 2014.

How much revenue does a typical API documentation management software company make?

The average API documentation management software company in this list makes $14.6M a year, across 25 companies with reported revenue. They serve 510.2K customers combined.

Who are the leading API Documentation Management software vendors?

Ranked by annual revenue, the leaders are Postman, ReadMe, Chills, Gram by Speakeasy and Escape.

How much funding have API documentation management software companies raised?

The 25 API documentation management software companies tracked here have raised $440.7M in disclosed funding between them.

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