Product design agency
Product design agency for startups growing past their first version
One senior team for research, UX, UI, design systems and build support, so your product grows without turning into a patchwork of quick fixes.
In short
A product design agency plans, designs and tests digital products from strategy to release. Our team at ui-ux.agency, part of tkxel, covers user research, user experience (UX) design, user interface (UI) design, design systems and build support for web and mobile products, with projects from $25,000 and a senior designer on every engagement.
Trusted by teams at
- Senior designers only
- NDA before the first call
- Reply within 1 business day
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What does a product design agency do?
A product design agency decides what a product should do, how it should work and how it should look, then stays with the team until it ships. It joins strategy, research and design in one place.
After the first release, a startup's product grows fast and unevenly. Features arrive from sales requests, investor feedback and the founders' own ideas. Without a product design partner, each feature looks and works a little differently. Our designers keep a single view of the whole product: who uses it, which jobs matter most and which screens need work next. Founders who still need a minimum viable product (MVP) start with our MVP design agency package.
- Product design loop around a product screen
- Stage 1 — Research
- Stage 2 — UX design
- Stage 3 — UI design
- Stage 4 — Build support, then back to research
- Investment
- $25,000–$180,000
- Deliverables
- 6 included
What services does our product design agency cover?
Our product design agency covers 6 services in one team:
Product strategy
Workshops that turn business goals into a clear product roadmap and design priorities.
User research
Interviews, surveys and analytics reviews that show what users need and where they struggle.
UX design
Information architecture, user flows and wireframes tested with real users.
UI design
Final screens for web, iOS and Android with motion and accessibility built in.
Design systems
Components, tokens and documentation shared by designers and engineers.
Build support
Sprint reviews, design QA and quick answers while engineers build.
How does our product design agency plan the work?
Our product design agency plans the work in 4 stages, and each stage has a fixed scope and a clear output.
- 1–3 weeks
Discovery
Stakeholder workshops, user interviews and a product audit that ends in a ranked list of problems.
- 2–4 weeks
Concept and validation
Flows and prototypes for the top problems, tested with 5 to 8 users.
- 3–8 weeks
Detailed design
Final screens, edge cases, empty states and the design system.
- ongoing
Delivery
Our designers stay in your sprints until the new design is live and measured.
Product design agency vs a UI design studio
A product design agency owns outcomes such as activation and retention; a UI design studio owns the look of the screens.
| Criterion | Product design agency | UI design studio |
|---|---|---|
| Starting point | Business goals and user research | Brand and visual direction |
| Scope | Strategy, UX, UI, testing and delivery | Visual design of screens |
| Measured by | Product metrics after launch | Design approval |
| Stays during build | Yes | Rarely |
| Best for | Products with growth targets | Brand refreshes and marketing sites |
Why startups choose our product design agency
Startups choose our product design agency for 4 reasons.
Senior people only
Every project is led by a senior product designer who stays from discovery to release.
Design and engineering in one company
As part of tkxel, our designers work next to engineers who build what we design.
Built for SaaS and AI
Deep pattern knowledge from our SaaS design agency and AI work.
Flexible models
Fixed-scope projects or a monthly team that grows and shrinks with your roadmap.
How much does a product design agency cost?
Product design with our agency costs $25,000 to $180,000 per project, or $15,000 to $40,000 per month for an embedded team.
A discovery and concept phase for one product area sits near $25,000. A full product with a design system, web and mobile apps and build support sits near $180,000. Teams that want designers inside their sprints instead of a fixed project can hire UI UX designers monthly. Every cost factor is explained in the UI UX design cost guide.
FAQ
Product design agency FAQs
Answers to common questions about working with a product design agency.
Still have a question?
A design lead answers every message within one business day.
Talk to a design leadDoes your product design agency also build the product?
Yes. ui-ux.agency is the design team of tkxel, a software engineering company, so design and development run in one contract when you need both.
How quickly can a product design project start?
Most projects start within 1 to 2 weeks of a signed proposal.
Which tools does your product design team use?
Figma for design and prototypes, FigJam for workshops, Maze for remote tests and Storybook for design system documentation.
Can you work with our in-house designers?
Yes. We often lead research and the design system while in-house designers own day-to-day feature work.
Not sure where your design loses users?
Book a 45-minute product review. A senior designer walks through your product and names the three changes with the biggest effect.
Book a product review
Ready to launch faster and convert more users?
Send us your project. A design lead reviews it and schedules a call within one business day. We sign an NDA before the first technical discussion if you prefer.