Harness Raises $240M Series E at $5.5B Valuation Led by Goldman Sachs
In brief
- Harness closed $240M Series E ($200M primary, $40M tender) led by Goldman Sachs Alternatives on December 11, 2025
- Valuation reached $5.5B, representing 22x projected 2025 ARR of $250M+
- Platform processes 128M deployments annually, optimized $1.9B in customer cloud spend
- Enterprise customers include United Airlines, Morningstar, Keller Williams, National Australia Bank
- Company operates 1,200 employees across 14 offices serving 1,000+ enterprise customers
Funding structure and valuation
The round splits into $200 million in primary capital plus a planned $40 million tender offering. The $5.5 billion valuation puts Harness at roughly 22 times projected 2025 ARR, a premium justified by the company's scale and growth trajectory. Previous backers include Menlo Ventures and IVP.
The "outer loop" market
Harness focuses on what the company calls the "outer loop" of software engineering, covering testing, security scanning, governance, compliance checks, and cost optimization. This positioning addresses a critical gap. AI code-generation tools have meaningfully accelerated how fast development teams produce code, creating urgent demand for downstream tooling that validates, secures, and governs that output.
The company has doubled down on security through acquisitions. Harness acquired Traceable, a security platform, and Qwiet AI, adding capability layers in security and AI-assisted code analysis.
Scale and growth
Harness reported 128 million deployments processed in the past 12 months and optimized $1.9 billion in customer cloud spend over the same period. The company is projected to surpass $250 million in Annual Recurring Revenue in 2025, representing more than 50% year-over-year growth.
Enterprise adoption spans multiple verticals. Its customer base includes United Airlines, Morningstar, Keller Williams, and National Australia Bank. More than 1,000 enterprise customers rely on the platform, supported by 1,200 employees across 14 offices.
The funding validates a market thesis: as AI accelerates code production, enterprises need robust infrastructure to manage deployment risk, compliance, and cost at scale.
Frequently asked questions
What does Harness do?
Harness is an AI-native software delivery platform that focuses on the 'outer loop' of software engineering, covering testing, security scanning, governance, compliance checks, and cost optimization. It helps enterprises manage deployment risk and validate code produced by AI tools.
Why is this funding round significant?
The $240M Series E pushed Harness to a $5.5B valuation with 50%+ year-over-year ARR growth and 128M annual deployments. It reflects enterprise demand for automated deployment and compliance solutions as AI code-generation tools accelerate development cycles.
Who are Harness's customers?
Harness serves more than 1,000 enterprise customers, including United Airlines, Morningstar, Keller Williams, and National Australia Bank. The platform has optimized $1.9B in customer cloud spend over the past 12 months.
