# Stainless Software

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/stainless-software

- Industry: Software
- Headquarters: New York, US
- Website: www.stainlessapi.com
- Total disclosed funding: $25M
- Latest round: Series A (Dec 10, 2024)
- Investors on record: 6

## About

Established in 2022 and based in New York, US, Stainless Software, Inc. operates as a software company. The company was founded by Alex Rattray. In December 2024, Stainless Software, Inc. raised USD 25 million in a Series A funding round led by Andreessen Horowitz, Sequoia Capital, The General Partnership, Felicis Ventures, Zapier, Inc., and MongoDB Ventures.

Stainless Software specializes in the automated generation of software development kits (SDKs) tailored for APIs, utilizing OpenAPI specifications. The company’s primary offering includes a unique SDK generation service that creates idiomatic, type-safe client libraries across multiple programming languages, including Node.js, Python, Go, Java, Kotlin, and Ruby. Its client base includes OpenAI, Lithic, Modern Treasury, Cloudflare, and Mux.

The company generates revenue by offering its services on a subscription-based pricing plan. The plans include free, startup (USD 250/month per live SDK), business (USD 2,500/month), and enterprise.

The company plans to utilize the funding raised in December 2024 to bolster its product offerings and enhance market expansion.

## Funding rounds

- Series A, Dec 10, 2024, $25M — Hong Shan, Andreessen Horowitz, Felicis Ventures, Zapier, Inc., The General Partnership, MongoDB Ventures

## Investors

- Hong Shan — Series A
- Andreessen Horowitz (https://capitalatlas.ai/funds/andreessen-horowitz) — Series A
- Felicis Ventures (https://capitalatlas.ai/funds/felicis-ventures) — Series A
- Zapier, Inc. — Series A
- The General Partnership (https://capitalatlas.ai/funds/the-general-partnership) — Series A
- MongoDB Ventures — Series A