Engineering a category-defining brand for autonomous software development.

What we did

Brand positioning and messaging strategy
Visual, verbal, and motion identity
Web design, content, and development
Real-time UI animations and product storytelling
Scalable design system for product and marketing
Ongoing design partnership

Overview

Diffblue is redefining how enterprise engineering teams maintain and scale complex codebases. Spun out of Oxford University’s AI research group in 2016, Diffblue quickly closed one of Europe’s largest Series A funding rounds, with Albion Capital, IP Group, and Citigroup among investors. Its AI automatically writes Java unit tests, strengthening code quality and accelerating delivery.

Yet the previous brand and website didn’t communicate this sophistication to technical or commercial audiences. We partnered with their team to articulate Diffblue’s market position, clarify product messaging, and create a website that drives adoption and enterprise growth.

diffblue.com

Newsworthy

Moderne and Diffblue Announce Strategic Partnership to Accelerate Enterprise Application Modernization
Meet the startup using AI to automate code for Citi and JPMorgan
Diffblue Receives £1 Million Grant from Innovate UK to Advance AI-Driven Software Engineering
New Look, Who Diff?
Together’s brand for Diffblue embodies the AI coding tool’s potential
Diffblue Resources

In focus

01

Clearer positioning for commercial traction.

Diffblue operates in a fast-moving category: AI for code. We refined the brand positioning to reflect product maturity, differentiate from competitors, and signal leadership in autonomous testing. The new brand platform was created around the idea of supercharging both the process and impact of software development, ensuring that every communication, from investor decks to enterprise proposals, supports Diffblue’s go-to-market objectives.
Diffblue Stage

02

4x faster than GitHub Copilot. 10x more tests generated.

Many prospects didn’t fully understand Diffblue’s autonomous testing capabilities or the operational impact of the platform. We prioritised product clarity, using interactive demos, real-time UI animations, and structured messaging to show tangible outcomes. Now, decision-makers can quickly see what Diffblue does and — crucially — what makes it unique in the space.
Code Screen

03

A brand concept rooted in code.

Many prospects didn’t fully understand Diffblue’s autonomous testing capabilities or the operational impact of the platform. We prioritised product clarity, using interactive demos, real-time UI animations, and structured messaging to show tangible outcomes. Now, decision-makers can quickly see what Diffblue does and — crucially — what makes it unique in the space.
Illustrations
Messaging
Diffblue Dash
Gradient

04

A scalable design system for product, marketing, and future launches.

Diffblue’s teams needed a flexible system to move quickly across channels. We built reusable visual and verbal building blocks that can evolve with new products, campaigns, and market requirements. From sales decks to website updates, the design system ensures consistency without slowing execution.
Diffblue Tote
Diffblue Lanyard

05

A website engineered for clarity, credibility, and enterprise conversion.

The website was rebuilt from the ground up as a product-led sales and marketing tool. Every section guides visitors through core outcomes, builds trust with proof points, and encourages action. It serves multiple audiences — individual developers, small engineering teams, global banks — all in a clear, scalable experience.
Cover

Finally our brand and website represent where our company and product is today — a mature player in the ever-advancing AI for Code category.

1601356229872

Cassy Locke

Head of Marketing, Diffblue

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With thanks to

Cassy Locke, Lee Hoosein, Zoe Laycock and Lisa Raynaud.