Key facts
- It has raised $43.9M; the latest was Grant ($1.3M) in Mar 2025.
- Notable investors include Innovate UK, Parkwalk Advisors, University of Oxford, Goldman Sachs Growth Equity, Oxford Science Enterprises — 16 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 16 names
- ·Watchlist + deal alerts for Diffblue
- ·The full record, as it builds
Funding rounds
No funding rounds for Diffblue are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Diffblue
Developer of an automated testing software designed to improve error-prone manual coding, with fully autonomous unit test writing. The company's software uses artificial intelligence to write unit tests for an entire application, find bugs, maintain and run regression unit tests automatically, and generate human-readable code, enabling clients with insights into test coverage, code testability, complexity, dependencies, and code churn.
- Sector
- Information Technology
- HQ
- London, United Kingdom
- Founded
- 2016
- Employees
- 53
- Website
- diffblue.com/
- Ownership
- Privately Held (backing)
Diffblue doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Diffblue shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Diffblue in its N-PORT filings yet. We sweep new filings monthly.