1
Aqueduct, Inc.
United States
ApiOverflow uses cutting edge generative AI technology to learn how to use APIs and convert your questions into usable code.
- Revenue
- $8.5M
- Customers
- -
- Year founded
- -
- Funding
- -
- Team size
- -
- Growth
- -
Top 28 API Generation Software SaaS Companies in May 2026
As of May 2026, there are 28 SaaS companies in API Generation Software. They have combined revenues of $64.2M and employ 490 people. They have raised $19.4M and serve - customers combined.
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Sorting: Highest -> Lowest
Top API Generation Software Companies
Showing 10 of 6 companies ranked by annual revenue.
2
Ozone API
London, England, United Kingdom
Ozone API is the leading standards based platform that handles the complexity of open banking, making it easy for any financial institution to meet both regulatory and commercial requirements for an open API. Banks using the Ozone API can accelerate their implementation of open APIs, and bring new commercial services to market ahead of the competition.
- Revenue
- $7.2M
- Customers
- -
- Year founded
- 2017
- Funding
- -
- Team size
- 65
- Growth
- -
3
Buf
Toronto, Ontario, Canada
The Protobuf developer platform Accelerate API development with Buf, the only end-to-end developer platform for Protocol Buffers, gRPC, and Kafka.
- Revenue
- $5.4M
- Customers
- -
- Year founded
- -
- Funding
- -
- Team size
- 49
- Growth
- -
4
APIMatic
Auckland, New Zealand
Provider of a developer experience platform intended to make developers productive through automatic code generation. The company's platform offers an automatic software development kit generator for stack development and application delivery of APIs, enabling API providers to generate SDKs for their APIs within minutes and at a fraction of the cost.
- Revenue
- $5.1M
- Customers
- -
- Year founded
- 2014
- Funding
- -
- Team size
- 38
- Growth
- 221.53%
5
Stainless
New York, New York, United States
Stainless is a company that specializes in generating software development kits for APIs.
- Revenue
- $5.1M
- Customers
- -
- Year founded
- 2022
- Funding
- -
- Team size
- 64
- Growth
- -
6
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
- Customers
- -
- Year founded
- 2022
- Funding
- -
- Team size
- 46
- Growth
- -