When was Diffblue founded?

Diffblue was founded in 2016 and raised its 1st funding round within a year of its incorporation.

Where is Diffblue located?

Diffblue is headquartered in London, United Kingdom.

Which legal entities is Diffblue associated with?

Diffblue is associated with DIFFBLUE LIMITED.

How many employees does Diffblue have?

As of Jun 30, 2026, the latest employee count at Diffblue is 24.

Is Diffblue a funded company?

Diffblue is a funded company, having raised a total of $46M across 7 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Mar 03, 2016.

How much is Diffblue worth?

The latest valuation of Diffblue is £***** as of Oct 22, 2024. This marks a decline of 51% from its peak valuation of £47.3M in Mar, 2016. This marks a decline of 51% from its peak valuation of £47.3M in Mar, 2016.

When was the latest funding round of Diffblue?

Diffblue's latest funding was a $***** Grant (prize money) round on Mar 31, 2025, with participation from 1 investor. Its primary sector is Software Testing Tools. In United Kingdom, the Software Testing Tools sector has seen $52M in funding in 2026 to date.

What is the annual revenue of Diffblue?

Annual revenue of Diffblue is less than £1M as on Dec 31, 2018

Where does Diffblue rank among its competitors?

Diffblue ranks 4th amongst 356 active competitors, of which 64 are funded. It stands 7th in terms of total funding among its competitors. The most recent competitor to raise funding was Antithesis, which secured $105M in Dec, 2025.

Who are the top competitors of Diffblue?

Diffblue's top competitors include TestMu AI, mabl and Opkey. Among them, Antithesis secured the most recent funding round in December, 2025.

Diffblue - 2026 Company Profile, Team, Funding, Competitors & Financials

Company Details

Developer of AI-powered autonomous unit testing tools for Java applications. The company provides an agent designed for generating high-quality Java unit tests. It delivers coverage with minimal developer effort, updating or removing tests as application logic changes. The agent analyzes code, generates JUnit tests, and tracks coverage.

Website: www.diffblue.com/
Social
Email ID: *****@diffblue.com

Key Metrics

Founded Year

2016

Location

London, United Kingdom

Stage

Series A

Total Funding

$46M in 7 rounds

Latest Funding Round

Grant (prize money), Mar 31, 2025, $*****

Post Money Valuation

£***** as on Oct 22, 2024

Investors

IP Group & 18 more

Ranked

4^th among 356 active competitors

Annual Revenue

£0 - £1M as on Dec 31, 2018

Employee Count

24 as on Jun 30, 2026

Similar Companies

Vercel & 1579 more

View Diffblue's full profile

Diffblue is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
DIFFBLUE LIMITED CIN: 09958102 , United Kingdom, Active	Jan 18, 2016	£0 - £1M (As on Dec 31, 2018)	54 (As on Dec 31, 2023)

Diffblue has raised a total funding of $46M over 7 rounds. Its first funding round was on Mar 03, 2016. Its latest funding round was a Grant (prize money) round on Mar 31, 2025 for $*****. 1 investor participated in its latest round. Diffblue has 11 institutional investors and 8 angel investors.

Here is the list of recent funding rounds of Diffblue:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Mar 31, 2025	9079065	Grant (prize money)	2492374	4164627	5233766	7845277
Oct 30, 2024	5590130	Series A	5304589	1312417	9531959	1666921
Dec 12, 2023	3897956	Series A	8060424	4713175	4628965	Citi

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View details of Diffblue's funding rounds and investors

The founders of Diffblue are Daniel Kroening and Peter Schrammel.

Here are the details of Diffblue's key team members:

Daniel Kroening: Co-Founder of Diffblue. They serve on the board of 1 company.
Contact Info: 1 email address
Peter Schrammel: Co-Founder & CTO of Diffblue.
Contact Info: 1 email address

Diffblue's Board of Directors

Diffblue's board has 4 active members. Daniel Kroening, Daniel Kroening and Jane Silber are part of team and Somerset William Gabriel Pheasant is independent board member.

Here is the list of Diffblue's board of directors:

Name	Type	Representing	Status	Duration
Daniel Kroening	Team	-	Current	10y 6m
eihfsoi	Team	-	Current	4y 6m
Daniel Kroening	Investor	University of Oxford	Current	10y 6m
Somerset William Gabriel Pheasant	Independent board member	-	Current	9y 1m
cqebwcr	Independent board member	-	Past	5y 9m

View details of Diffblue's Founder profiles and Board Members

Diffblue's employee count trend

Diffblue has 24 employees as of Jun 26. Here is Diffblue's employee count trend over the years:

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Top competitors of Diffblue include TestMu AI, mabl and Opkey. Here is the list of Top 10 competitors of Diffblue, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	TestMu AI 2018, San Francisco (United States), Series D	AI-native quality engineering and software testing platform	$108M	Peak XV Partners, Blume Venture & 16 others	64/100
2nd	mabl 2016, Boston (United States), Series C	AI-native test automation platform empowering software teams to deliver quality experiences	$76.1M	Google Ventures, CRV & 3 others	63/100
3rd	Opkey 2015, Dublin (United States), Series B	Provider of AI-powered test automation platform for enterprise resource planning	$58.2M	YourNest, PeakSpan Capital & 5 others	62/100
4th	Diffblue 2016, London (United Kingdom), Series A	Developer of AI-powered autonomous unit testing tools for Java applications	$46M	Goldman Sachs, Citi & 17 others	62/100
5th	Evinced 2011, Los Altos (United States), Series C	Developer of AI-powered tools for website and mobile app accessibility	$112M	Insight Partners, M12 & 6 others	62/100
6th	TestSprite 2023, Seattle (United States), Seed	AI-powered autonomous software testing platform for validating logic and functionality in code written by artificial intelligence tools	$9.66M	Hat-Trick Capital, Techstars & 6 others	60/100
7th	Antithesis 2018, Vienna (United States), Series A	Provider of autonomous software testing platform for bug detection and reproduction	$182M	Amplify Partners, Jane Street & 17 others	58/100
8th	Functionize 2014, San Francisco (United States), Series B	Cloud based platform offering software for automated testing	$67M	Mumford Investments, LHH Investments & 4 others	58/100
9th	Adaptive ML 2023, New York City (United States), Acquired	Cloud-based platform for building and testing large language models	$20M	Index Ventures, Financiere Saint James & 5 others	58/100
10th	Appvance.ai 2013, Santa Clara (United States), Series C	Platform offering AI based automated testing software	$24.2M	Staenberg Venture Partners, Javelin Venture Partners ... & 14 others	57/100