StackHawk, a Denver, CO-based shift-left API security platform, has secured $12 million in funding, bringing its total raised to $47.3 million.
Investors
The round was led by Sapphire and Costanoa Ventures.
Sapphire is a global venture capital firm with over $11 billion in assets under management (AUM) and offices in Austin, London, Menlo Park, and San Francisco. With a track record of investing in over 170 companies, Sapphire has supported over 30 public listings and 45 acquisitions. Its investment strategies—Sapphire Ventures, Sapphire Partners, and Sapphire Sport—focus on scaling companies to become category leaders.
Costanoa Ventures is a Palo Alto-based early-stage venture capital firm founded in 2012, managing over $2 billion in assets. The firm focuses on seed and Series A investments in sectors such as fintech, AI, cybersecurity, and data infrastructure. Known for its hands-on, founder-centric approach, Costanoa provides operational support through its BuilderOps team to help startups grow.
StackHawk Use of Funds
The company will use the funds to accelerate the delivery of security products and features designed for teams adopting AI-driven development, especially in sensitive industries like healthcare and fintech.
About StackHawk
Founded in 2019 and led by CEO Joni Klippert, StackHawk is a SaaS company that integrates API and application security testing into the software delivery process. It automates security testing for web applications and APIs by identifying vulnerabilities through testing of running applications. The StackHawk platform offers engineering teams the ability to find and fix application bugs at any stage of software development and gives security teams insight into the security posture of applications and APIs being developed. StackHawk supports testing across REST, GraphQL, and gRPC APIs and integrates seamlessly into CI/CD pipelines.
Funding Details
Company: StackHawk, Inc.
Raised: $12.0M
Round: Unknown
Funding Date: May 2025
Lead Investors: Sapphire, Costanoa Ventures
Additional Investors:
Company Website: https://www.stackhawk.com/
Software Category: API Security / Application Security / DevSecOps
Source: https://www.prnewswire.com/news-releases/stackhawk-raises-12-million-in-strategic-funding-to-help-security-teams-keep-up-with-ai-driven-development-302463293.html