Strategy & Design
We challenge assumptions, sharpen product direction and design intuitive experiences that solve real user and business problems.
Product Design For B2B Startups
Ship better software,
without the design bottleneck
We help early-stage B2B SaaS teams design better products, bridge the gap between design and development, and turn ideas into production-ready software.
What We Do
We’re Onyx. We help startups
build the right things.
With over a decade of experience in London tech, we take your product from strategy, through design, to a working React prototype in a focused, 2–6 week sprint.
Design-to-Code
We convert the final designs into a working coded prototype, giving your engineers a clearer foundation to build from.
Interactive Demo
See our work in action
Explore a live example built by Onyx. We deliver working React prototypes like this alongside Figma designs, so your engineers spend less time rebuilding and more time shipping.
Pricing
Ways to work with us
No junior designers or hourly rates. Just senior expertise delivered through a focused sprint with a clear scope, fixed price and defined timeline.
Launch a New Product
Fixed price
£10,000
Turn an idea into a clearly defined, fully designed MVP with a working React prototype. From product direction to developer-ready handover.
Includes
- Onyx founder, full-time
- Product strategy, UX and core workflows
- Design system foundations
- High-fidelity UI in Figma
- Working React prototype
- Developer-ready handoff
- 4-6 week delivery
Improve an Existing Product
Starting from
£6,000*
Redesign an existing product, improve key workflows or extend what you’ve already built, including products developed with AI tools.
Includes
- Onyx founder, full-time
- UX review & product direction
- UX improvements, new workflows and features
- High-fidelity UI in Figma
- Working React prototype
- Developer-ready handoff
- 2-6 week delivery
* Fixed priced based on product scope.
Not ready to commit?
Get a free product review
Get a fresh perspective on your product, with a personalised video review covering UX issues, workflow improvements and what to prioritise next.
The Studio
Why I built Onyx
Liam MorrisFounder & Design Lead
After more than a decade working in London’s tech industry delivering for high growth startups, tier 1 banks and big tech, I’ve seen the same two problems repeatedly slow early-stage teams down.
The first is capacity. A team raises, grows, or commits to a big deadline, and suddenly the product needs more design depth than it has in-house. A full-time hire is often the right long-term move, but finding and onboarding quality designers takes months the roadmap doesn't have.
The second shows up when design hits development. Engineers are there to ship reliable software, not to recreate every detail of a Figma file. Fair enough. But over time that gap becomes design drift, UI defects, and avoidable rework.
Onyx exists to close both gaps. Product design when you need it, then a design-to-code workflow that hands your engineers something to build from, not interpret.
FAQs
Common questions
A senior product designer in London typically costs £80k–£100k a year, plus a 20% recruitment fee. Hiring and onboarding can take several months.
In that time, Onyx can deliver a complete Sprint covering product direction, high-fidelity design and a developer-ready handover, without the long-term cost of a full-time hire.
Yes. AI tools make it easier to get an MVP off the ground, but products often need more considered UX, consistent design and robust handling of edge cases before they can scale. We improve what you already have, turning it into a more coherent, credible product without starting from scratch.
Somewhat. Our React prototypes use real components, layouts and interactions, giving your engineers a working frontend they can build on from day one. Instead of starting with static Figma files, they get a functioning interface with the key screens and interactions already implemented.
This accelerates development, reduces duplicated effort and keeps the finished product closer to the original design. Your engineers can focus on connecting backend services, integrating live data and getting the product ready for release, rather than rebuilding the interface from scratch.
Onyx works alongside your existing product and engineering team, taking technical constraints and delivery priorities into account when defining the scope. The goal is to give your team clearer designs and a practical implementation starting point without introducing unnecessary complexity.
Your engineers remain responsible for production integration, testing and deployment.
Every project is led by Liam Morris, Onyx's founder and design lead. With over a decade of experience in London's tech industry, he brings product design expertise from high-growth startups, tier-one banks and big tech.
Onyx doesn't outsource design work or pass projects to junior designers. Liam takes on one client at a time, working exclusively with that client from start to finish.
You'll work directly with Liam Morris, Onyx's founder and design lead, throughout the Sprint. Expect weekly reviews, open communication and full visibility into the work as it develops. Key product decisions are made together, not handed over at the end. That's the point.
Handover isn't a file drop. We walk your engineers through the coded prototype, design files, code repository and implementation guidance, so everyone understands how the product should be built.
Liam is available for follow-up questions for two weeks after handover. If you need further support, we can scope another Sprint.
Yes. Many teams start with one Sprint and continue with another for the next phase of the product. We work one project at a time, with a clear scope agreed before each Sprint. No retainers or ongoing commitments.
Yes. We work alongside agencies and studios as an embedded or white-label design partner, supporting client projects with product strategy, design and working React prototypes. Get in touch to discuss what your team needs.
Let's build something
worth shipping.
Tell us what you're building and where you're stuck. We'll work out how Onyx can help.