Design partner for Dev Agencies

You build the code. We bring the design.

Partner with us on a project and deliver beautiful, usable, and on-brand products—without hiring in-house creatives.
4.9
from 20+ reviews on Google
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Design partner for Dev Agencies

You build the code. We bring the design.

Partner with us on a project and deliver beautiful, usable, and on-brand products—without hiring in-house creatives.

4.9
from 20+ reviews on Google
Stop project delays

The Cost of Going Without a Design Partner

You’re turning down design work—or worse, delivering it underwhelmingly. Without a reliable design partner, you risk project delays, client churn, and a growing to-do list of “we’ll figure that out later.”

Meet Your Design Team

We’ve partnered with independent Dev Agencies to deliver design that delights users and impresses stakeholders. Our Utah-based team brings a decade of experience in product design, UI/UX, branding, and visual systems for fast-growing startups and enterprise clients alike.

Schedule a free consultation
Trusted by top dev teams
Benefits

Why Dev Teams Choose Underbelly

Underbelly partners with development-only agencies to deliver high-quality design that feels like an extension of your team. No flaky freelancers. No bloated overhead. Just clean, collaborative creative that ships.

Seamless Design Integration

We speak developer. Our designers integrate smoothly into your workflow—be it dual-track agile sprints, GitHub comments, or Figjam boards.

Elevated Client Deliverables

We help you win and retain more clients with polished branding, UX/UI, and product design that matches the quality of your code.

Flexible Partnership Models

From project-based support to embedded design teams, we scale to your project’s needs—no long-term contracts required.

What our clients say

Testimonials from some of our amazing customers.

Partner With Us on a Project
Product Owner
I can’t speak highly enough about the Underbelly team! Not only are they a blast to work with, but they helped us clarify and articulate complex business processes, engage our internal stakeholders and users, and put us on track to deliver great value back to the organization. They are highly responsive, maintain clear and consistent communication, and go above and beyond in their delivery. The work they have done will have a long-lasting impact on our organization. I wouldn’t hesitate to work with them again!
Seth McKnight
The Seed Company
Chief Design Officer
I worked with Underbelly on a complex project involving rapid iteration and a complex design.  They performed wonderfully and were great to work with.  Very professional, open to brainstorming ideas, and always worked hard to make sure they understood our vision.  In the end the product was an awesome mix of the best ideas from our merged teams and a solid delivery of the original design concept.  I'd love to work with them again.
Elan Lee
XBOX
Senior Product Manager
This is the only design shop I’ve worked with that has been able to shed the agency/client dynamic enough to help drive a real dual-track discovery and development approach to building software.
Mark Parrett
Experticity
Founder
Underbelly is the rare team talented and nimble enough to move at the pace of ambitious, fast-moving companies. Hire them!
Chelsea Allison
CMAND
Product Design Manager
It has been a pleasure working with Underbelly for 9+ months. The quality of product design work was excellent, and Underbelly integrated directly with our team, working with product and engineering to understand goals and requirements. Underbelly has felt like an extended part of our design team.
Chelsea Klukas
Facebook

Highlights from our impact

We don’t just create brands that look good—we build brands that perform. Here’s what strategy-led branding has done for our clients:

16%
Increase in conversion rates
After simplifying the user experience and updating the entry point, the conversion rate increased from 2.8% to 19%!
Facebook
109%
increase in store trafic
Through this long-term collaboration, they were able to release a series of updates that increased traffic to their store.
Vivint
48,000
New visitors in 2 weeks
The new website received over 48,000 visitors during the launch with 21% of users opting in for future communications.
BibleProject

Partner With Us on a Project

Join over 900+ companies already working with Underbelly.

  • 1

    Discover What Matters. We dig deep into your business, audience, and goals so every creative decision is rooted in strategy, not guesswork.

  • 2

    Design With Purpose. From concepts to final assets, we craft solutions that are both beautiful and built to work in the real world.

  • 3

    Launch and Elevate. We help you roll out your new brand, product, or campaign — then continue refining to keep you ahead of the curve.

Case Studies

Case Studies

Design & Development collaborations that took off.

Let’s Make Something Great Together

You're already delivering top-tier development.Now, offer design that matches—without the hassle of hiring.

Partner With Us on a Project

Why Dev Agencies Partner with Underbelly for Design

Many development-only agencies struggle to offer design without overextending their team or relying on unreliable freelancers. At Underbelly, we fill that gap. As a trusted design partner for dev agencies, we embed seamlessly into your workflow to deliver thoughtful, high-quality design—on time, on brand, and built to scale. Whether you need UX/UI for a product, visual polish for a pitch, or an entire brand system, we’re here to help you expand your offering, impress your clients, and grow your business—without the overhead of hiring in-house.

Recognition

CSSDA Best UI Design 06.23.25
Special Kudos is a professional 'pat on the back' for exemplary work that deserves recognition irrespective of winning WOTD
The Webby Awards
The Webby Awards are awards for excellence on the Internet presented annually by the International Academy of Digital Arts and Sciences.
Webby Honoree - Best User Experience
Honored for Best User Experience - Websites and Mobile Sites

Frequently asked questions

Answers to some common questions about our branding services.

How soon can we start?

Project start dates are set once the agreements are signed and initial payments

are received. Our typical kickoff is about 3 weeks out from signed contracts. Reach out for current availability.

Do you work under NDA or white-label?

Absolutely. We're happy to work behind the scenes under your brand if needed.

What tools do you use to collaborate?

We adapt to your stack—Figma, Slack, Notion, GitHub, whatever you need.

Do you require long-term contracts?

Nope. We’re flexible and happy to start with a single project.

Still have questions?

Let’s build a brand your market won’t forget.

Contact us