What your product says about your science before you say a word.
We build design systems for Series A sustainability tech companies with complex data products.
Focused sprints. No retainers. Permanent ownership.
- Science that reads clearly
- Enterprise-ready from day one
- Developers ship faster
- Teams that stay consistent
- Infrastructure you own permanently
The problem
The product is working. The design isn't.
At Series A, the pressure shifts.
Enterprise buyers scrutinise what your product looks like, not just what it does. New hires ask uncomfortable questions about consistency. Developers rebuild the same components sprint after sprint. The science hasn't changed. But the gap between what you've built and how it reads is starting to cost you. Design determines who gets access to what you've built. Right now, it might be getting in the way.
How we work
Focused sprints. Clear ownership. No dependencies.
Most design work creates ongoing dependency. We work differently. One focused sprint, a defined end date, and a system your team owns and runs without us. We come back only if you want to go deeper.
Week 1-2
Listen and map
We map your product, your team, and the specific patterns your scientific data needs. No designing before the problem is named.
Week 3-4
Build and refine
We build the foundation. Components, tokens, data visualisation patterns built specifically for your domain, not generic templates.
Week 5-6
Hand over and train
We hand over a system your team knows how to use. Training included. Thirty days after handoff, we check adoption is working.
Who this is for
You have the science. You have the product. You have paying clients.
Ocean tech. Biodiversity. Climate data. Carbon and ESG platforms. Series A, with a growing team and design starting to slow you down.
If that sounds like you:
Let's talk
The solution
Complete infrastructure. Permanent ownership.
(01)
A complete design system your team runs without us
(02)
Components and patterns built for complex scientific data, not generic templates
(03)
Documentation and training so the handoff is real, not theoretical
(04)
A governance framework that keeps the system consistent as your product grows
How we compare
Fast infrastructure.
No dependencies.
Mistaek
4-6 weeks, clear timeline
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Built for complex scientific data
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You own the system permanently
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One project at a time, full attention
Other agencies
3-6 months or longer
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Generic component libraries
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Ongoing retainers, no exit
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Multiple projects, divided attention
Pricing
Clear Pricing. No surprises
One focused sprint. Everything your team needs to ship consistently. No hidden costs.
Unlock Sprint
Your design system, built for complex scientific data
10k €
50% upfront, 50% at handoff
Get started
What you’ll get
Complete design infrastructure your team owns permanently. Built specifically for your data. No retainers, no dependencies.
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Complete design system your team runs without us
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Components and patterns built for scientific data
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Documentation and training so the handoff sticks
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Governance framework for long-term consistency
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2-3 training sessions included
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4-6 weeks, clear timeline
Find Sprint
Clarify your positioning before you build
3-4 weeks, from €6,000
Enter Sprint
Expand your system as the product grows
2-3 weeks, from €4,000
Open Sprint
Bring your website and product up to system quality
3-4 weeks, from €5,000
Testimonials
Built on a decade of complex data systems.
We've built design systems for fintech, insurance, and education. Environments where data accuracy isn't optional and design debt has real consequences.
Sustainability tech has the same demands. Complex data, institutional buyers, high stakes. That's exactly what we built for.
“Mistaek blends creativity with clear thinking — Every solution is user-centred and grounded in strategy. Their work consistently elevates the quality of the project, and their reliability makes them someone you want on your team. If you’re looking for experienced UX designers who truly make a difference, they're the ones.”
Beatriz Botão
Co-Founder & Strategy Lead @ The Eggwhite
“Mistaek brings a rare blend of creativity and technical skill — they are both exceptional designers and capable developers. Their dedication, passion, and quality of work stand out in every stage, from brand strategy to execution. I’d recommend them to anyone looking for someone who can deliver both vision and results.”
Carlos Quadrado
Data Lead @ Comon
Mistaek stands out in high-stakes environments with a rare mix of creativity, strategic thinking, and focus on real results. They work with autonomy, bring clarity to complex challenges, and always keeps business goals in sight. If you need someone who delivers great UX and elevates the whole team — Mistaek is that team.”
Michael Nunes
Chied Design Officer @ Monday
The door is there. Let's open it.
If you're a Series A sustainability tech company and design is starting to slow you down, let's talk. We'll tell you honestly whether a sprint makes sense for where you are.
