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Design system development · 2026

Design system development agencies

Firms that ship the system as working code — tokens that compile, versioned components your team can install, a Storybook, and a release process. Not just Figma files.

Every firm on this page ships the system as working code: tokens that compile, versioned components in a package your team can install, a Storybook or equivalent, and a release process. That's the line for inclusion. Studios that hand over a polished Figma library and stop, however good the design, aren't here — because a system that lives only in design files drifts from production within a quarter. These are the firms that close that gap.

Ships as code

Seven firms that deliver systems in production

Each ships tokens, versioned components, and a release process — the deliverable is a codebase, not a handoff. Ordered by depth of systems-in-code work, not scored.

01Bitovi logo
Bitovi
Coded systems built next to the engineers, governance included.

Overview

Bitovi is an enterprise software consultancy where the design system arrives as a real, versioned component library rather than a static file, because front-end engineering is the core of the firm, not an add-on. An official Figma Service Partner, it treats the design-to-code pipeline as the actual deliverable.

Services

Design tokens, coded component libraries, Storybook, versioning and release process, front-end engineering, governance.

Notable work

Design-system modernization for a Fortune 500 financial-services company, plus enterprise work for clients including Yum! and Coinbase.

Ideal client

Enterprises that want a governed, code-backed system built and maintained alongside their own engineers.

Distributed, US-based · Independent · Figma Service Partnerbitovi.com
02Sparkbox logo
Sparkbox
An engineer-founded studio that builds systems to ship.

Overview

Founded by software engineers, Sparkbox has spent more than 15 years building for the web, and its systems come as production code with the tooling to maintain them. It publishes its own design-system starter and Storybook tooling openly, which is a fair preview of how it delivers: components in code, tokens, and a real repository.

Services

Design systems, coded components, Storybook, design tokens, front-end development, testing.

Notable work

Long-running design-system and front-end engagements with complex organizations; open-source design-system and Storybook starters on GitHub.

Ideal client

Teams that want a system implemented in maintainable front-end code, not just design files.

US-based, 15+ years · Independentsparkbox.com
03Rangle.io logo
Rangle.io
Enterprise systems shipped as governed, versioned code.

Overview

Rangle treats a design system as a product with an operating model, and the deliverable is coded: component architecture, multi-brand tokens, versioning, and the front-end engineering to make it real across many teams. The governance is built into the code pipeline, not written as a separate PDF.

Services

Design systems, component architecture, multi-brand tokens, front-end engineering, DesignOps, versioning.

Notable work

Enterprise systems shipped for UNIQLO, Sanofi, and Staples, among other large enterprises.

Ideal client

Enterprises with multiple product teams that need a coded, governed, multi-brand system in production.

Toronto, Canada · Independentrangle.io
04thoughtbot logo
thoughtbot
Systems that live in code, from a development-first consultancy.

Overview

Well known in the engineering community, thoughtbot builds design systems as shared, code-backed foundations maintained by the same team that ships the product. Design and development sit together, so the system is versioned code from day one rather than a handoff that drifts.

Services

Design systems, coded components, product design, software development, strategy.

Notable work

Product design and development across a broad startup and SaaS client base, with systems delivered as maintained code.

Ideal client

Teams that want the system to be real, installable code, maintained alongside the product.

Distributed, US-based · Independentthoughtbot.com
05Netguru logo
Netguru
A system designed and engineered by the same partner, at scale.

Overview

A sizable European firm, Netguru pairs product design with substantial engineering, so a system is built and maintained in production rather than only designed. The design-and-build-under-one-roof model reduces the handoff where a coded system usually starts diverging from its design source.

Services

Design systems, coded components, product design, web and mobile development, consulting.

Notable work

Long-running product and system work across SaaS, fintech, and enterprise clients, delivered with engineering.

Ideal client

Enterprises that need a system designed and shipped as production code by one team, at real scale.

Founded 2008, Poznań, Poland, publicly listed · Independentnetguru.com
06Pixelmatters logo
Pixelmatters
Documented, engineering-aligned systems as standard.

Overview

Pixelmatters builds a coded, documented system into every product engagement by default, structured around tokens, components, and the connective rules it calls glue, all handed off in a form its engineers actually consume. It publishes its own system template openly, a fair preview of the structure clients receive.

Services

Design systems, coded components, design tokens, product design, web development.

Notable work

Systems created and maintained across its product clients, plus a public design-system template used widely by designers.

Ideal client

Product teams that want a well-documented, engineering-aligned system delivered as code by default.

Porto, Portugal, distributed · Independentpixelmatters.com
07frog logo
frog
Enterprise systems as a coded ecosystem, at global scale.

Overview

A global consultancy inside Capgemini Invent, frog treats a design system as a living ecosystem of code, tooling, people, and process, built for organizations with thousands of developers consuming it. The scale is the point: systems engineered to be adopted across many teams and platforms at once.

Services

Enterprise design systems, coded components, DesignOps, cross-platform tooling, engineering.

Notable work

Large-scale system programs across global enterprises, on the back of decades of product design history.

Ideal client

Very large organizations that need a coded system engineered to scale across many teams and platforms.

Founded 1969, global studios · Part of Capgemini Inventfrog.co

Questions

Buying a coded system

What does a “development” agency deliver that a design studio doesn't?

A working codebase. Design tokens that compile to your platforms, versioned components in a package your team installs, a Storybook or live component explorer, and a release and deprecation process. A design-only studio hands over a Figma library and leaves the code to you, which is real, unbudgeted work and the most common reason systems drift.

Design tokens in code — why does it matter who owns the pipeline?

Because tokens are the single source of truth, and if they only live in Figma, your engineers translate them by hand and the two sides diverge. The firms here export tokens as JSON, CSS, Tailwind, or platform-native formats through an automated pipeline, so one change propagates everywhere. Ask to see how a firm moves tokens from design into code before you compare quotes.

Should we hire a development agency or have our own engineers build it?

If you have engineers with genuine design-system experience and protected time, in-house is often better because ownership is built in. Hire a development agency when you lack that experience, need it faster than you can staff it, or want the pipeline and governance set up correctly the first time so your team can take it over cleanly.

Do these firms work in our framework?

Most work across React and the common front-end stacks, and several handle multi-platform (web, iOS, Android) token pipelines. Framework fit matters for maintainability, so confirm it early. A firm strong in React may not be the right pick for a Vue or native-heavy environment, and the wrong framework choice is expensive to unwind.

How is a coded system priced versus a design-only one?

Higher up front, because engineering is included, but it removes the separate build phase and the drift-repair work that design-only systems generate later. Expect a foundational coded system with tokens, a core component set, and a repository to sit in the mid five to low six figures, and more for multi-brand or multi-platform scope.

How long does it take to ship a coded design system?

A foundational coded system is commonly three to five months, including the token pipeline and a core component library in production. Multi-brand or multi-platform systems take longer because the token architecture and release process carry more weight. Anyone quoting a few weeks is scoping a Figma library, not shipping code.