Most early-stage startups should start from an existing open-source component library in code and only commission a custom design system once several people are shipping UI at the same time. When you reach that threshold, your eight routes by stage are: starting from shadcn/ui, hiring a full-time design systems designer or design engineer, bringing in a freelance specialist through Toptal, or working with Waveup, Bricx, Beew Studio, Humbleteam, or Gev Design.
Does a startup need a design system yet?
Before evaluating external vendors or hires, founders must diagnose whether they actually need a custom design system right now. In many cases, the answer is no.
Signs you do not need a custom design system yet include being pre-product-market fit, where your team is still testing whether the core workflow solves a real problem and changing product direction frequently. If you have one designer or a technical founder keeping all patterns consistent in their head and in a single file, you do not need a system. Similarly, if you have one product with a small surface area where screens can still be updated directly without slowing down releases, a custom system is unnecessary overhead.
However, there are clear signs that you do need a design system now. If several people are shipping UI concurrently across engineering and design, causing visual and behavioral drift from sprint to sprint, a system becomes critical. You need one when the same component has been built three ways in production, resulting in modals, tables, or form inputs with different spacing, states, and keyboard behaviors. Finally, if a rebrand or a second product is coming (such as adding a mobile app alongside a web platform, or preparing a B2B SaaS interface for enterprise scrutiny before a raise), changing one screen at a time is no longer viable.
Routes Comparison Table
| Option | Model | Right when | Watch out for |
|---|---|---|---|
| 1. Start from an existing library (shadcn/ui) | Open-source components and code distribution platform | You are pre-product-market fit, shipping one product with a small team, and need accessible UI primitives in code today. | Gives you raw components in your repo, not product-specific UX patterns, brand direction, or cross-team governance. |
| 2. Hire a full-time design systems designer or design engineer | Permanent in-house hire | Several product teams ship UI every week and the system needs daily internal maintenance, advocacy, and roadmap ownership. | Slow recruiting cycle and permanent headcount overhead; overkill if you only need an initial foundation built. |
| 3. A freelance specialist through Toptal | Vetted freelance talent network with a trial period of up to two weeks | You have a defined, bounded systems problem, such as cleaning up one component library or organizing existing tokens, and someone internal to direct the scope. | A solo specialist executes the brief you hand them rather than reshaping your broader product UX, brand, or positioning. |
| 4. Waveup | Agency offering month-to-month engagements ("No 6-month lock-in") | You are a funded startup closing seed through Series B with a clear product scope and want a system shipped in 2-4 weeks alongside a pilot project. | The 2-4 week pace depends on already having a clear product scope rather than still figuring out what the product is. |
| 5. Bricx | Design studio operating month-to-month with no lock-in and daily updates | You are a venture-backed AI startup that wants design systems as a standalone service. | Built specifically around the needs of venture-backed AI startups. |
| 6. Beew Studio | Custom project or design subscription | You run a scaling SaaS product or multi-product company that needs a design system audit, Figma variables, patterns, and developer handoff. | Its page lists deliverables through Figma variables and developer handoff and gives no timeline; confirm whether coded components are in scope. |
| 7. Humbleteam | Product design agency | You need one set of components and one product voice unified across both a web platform and a mobile app. | An agency engagement; confirm how closely the team will work inside your engineering workflow. |
| 8. Gev Design | Embedded senior partner on a monthly retainer scoped per engagement | Your design system cannot be separated from fixing the product UX, brand, and positioning, or you also need production front-end code in your own codebase. | Deliberately small roster working with a small number of companies at a time; not fit for teams that only want a standalone Figma token cleanup. |
1. Start from an existing library (shadcn/ui)
Model: Open-source components and code distribution platform adopted directly by your engineers.
Best For: Pre-product-market-fit teams where one designer or founding engineers are building a single product and need accessible, consistent components immediately without pausing feature delivery to invent a bespoke system. Many startups should stop here for now.
Considerations: shadcn/ui describes itself as "a set of beautifully-designed, accessible components and a code distribution platform." Starting from an existing open-source library gives you accessible building blocks in code, but it does not decide your product's information architecture, domain-specific workflows, or visual differentiation. Once multiple people ship UI and customize those components independently without shared rules, visual drift still creeps in.
2. Hire a full-time design systems designer or design engineer
Model: Permanent in-house full-time employee, either a dedicated design systems designer or a design engineer bridging Figma and production code.
Best For: Growth-stage startups where several product teams ship UI every week. When you have this volume of work, it creates continuous demand for new component variants, token updates, code reviews, documentation maintenance, and internal governance across squads.
Considerations: Recruiting a senior systems specialist or design engineer takes time, commits permanent headcount, and requires enough ongoing system work to justify a dedicated role. If your startup only has one or two squads and needs the initial system stood up alongside a product redesign, a full-time systems hire will either be underutilized once the library stabilizes or pulled into general feature work. Founders weighing whether they need a permanent hire or part-time technical execution can compare this against engaging a fractional design engineer for startups.
3. A freelance specialist through Toptal
Model: Vetted freelance talent marketplace matching startups with an individual design systems specialist. Toptal states that engagements begin with a trial period of up to two weeks.
Best For: Startups that already have an established visual direction and a product manager or lead designer who can write a tight brief, and only need tactical execution on a bounded asset. This includes consolidating duplicate Figma components, setting up token variables, or documenting an existing library. If you need one component library cleaned up, hire a specialist and stop reading here.
Considerations: A freelance specialist from Toptal is hired to execute a defined systems task, not to rethink your product flows, reposition your brand, or push back on roadmap decisions. You still own product direction, engineering adoption, and long-term governance after the contract ends. For evaluation, Toptal says fewer than 3% of applicants are accepted, and the platform claims "Average time to match is under 24 hours."
4. Waveup
Model: Design system agency operating month-to-month with "No 6-month lock-in."
Best For: Funded startups closing seed through Series B that already have a clear product scope and want a fast, structured rollout. Waveup delivers tokens in Figma Variables, React component code, Storybook documentation, and a governance model. They aim to ship a pilot project with the system and state a full system in 2-4 weeks for funded startups with a clear product scope. Named design system clients on its page include LuxeFactor.ai and Hesytech.
Considerations: Achieving a full system in 2-4 weeks depends heavily on already having a clear product scope. If your core product UX, user flows, or positioning are still unsettled and need to be discovered through iteration, a compressed sprint will lock in components before the product underneath them is ready.
5. Bricx
Model: Design studio offering design systems as a standalone service on a month-to-month basis with no lock-in and daily updates. It has teams in San Francisco and Delhi.
Best For: Venture-backed AI startups that want to commission a design system as a standalone service from a studio focused specifically on their category. Bricx calls itself an "Award-winning design studio for venture-backed AI startups." Named clients include Writesonic and Sybill.
Considerations: Bricx positions itself tightly around venture-backed AI companies. If you are outside that focus or need a single partner to overhaul brand positioning, product architecture, and production front-end code inside your repository simultaneously, you must evaluate whether a standalone design system engagement covers your full problem. Founders comparing broader pre-Series A UI improvements can also review who to hire to redesign B2B SaaS UI before Series A for alternative studio models.
6. Beew Studio
Model: Design studio offering either a custom project or a design subscription.
Best For: Scaling SaaS products and multi-product companies whose UI has fragmented across features. Beew Studio is well-suited for organizations that need a structured design system audit, foundations, tokens in Figma variables, components, patterns, documentation, governance, and developer handoff. Named clients include MetaMask / Consensys and Scania Group.
Considerations: Beew Studio's page gives no timeline for delivery, and the deliverables it lists run through a design system audit, Figma variables and developer handoff. If you need coded components in your own repository, confirm that they are in scope, or plan for your engineering team to have bandwidth to translate the handoff into code.
7. Humbleteam
Model: Product design agency with offices in Prague and Dubai.
Best For: Startups expanding across platforms, specifically when a web product and a mobile app have drifted apart and need to be unified under a single system. Humbleteam illustrates this with its design system case for Afternoon, a Glasgow startup, which established "One set of components and one product voice across a web platform and a mobile app."
Considerations: An agency engagement suits teams that want an external team to unify a cross-platform design language. If you want someone working inside your engineering repository and channels day to day, ask how closely the team will embed before you start.
8. Gev Design
Model: Embedded senior partner on a monthly retainer scoped per engagement, with 48-72 hour activation and unlimited requests within scope.
Best For: Startups where the design system cannot be separated from the product UX, brand, and positioning, or where the team needs a product design partner that integrates with engineering to deliver design engineering alongside the system. For example, on Blitzy, Gev Design did flows, UX, UI and a design system the product consumes, working with Blitzy's founders and their engineers. For Syzl, a marketplace that puts food entrepreneurs into certified commercial kitchens, the work covered brand, product and website, "with the design system fixed and the whole thing tested on a phone."
Considerations: Founded by Gev Marotz, former Director of Product Design at Wealthsimple, who also spent six years running creative at a global agency, the Toronto-based studio works with companies worldwide. Gev Design delivers design systems as part of product work, plus design engineering scoped to what the team needs: production front-end code in the client's own codebase, prototypes in code, and marketing sites. Product design, brand, and positioning happen in one engagement; positioning is never a standalone service. The studio keeps a deliberately small roster, working with a small number of companies at a time. It is not the right choice if all you want is an isolated Figma library cleanup.
What a Good Design System Engagement Delivers
A successful project separates a working design system from an abandoned Figma file by delivering these core assets:
- Design Tokens Connected Between Design and Code: Semantic variables for color, typography, spacing, radius, and elevation structured in Figma Variables and mirrored in CSS variables or token files so visual changes propagate cleanly without manual hex hunting.
- Coded Components in Your Actual Stack: Interactive components built in the framework your engineers ship every day, covering keyboard navigation, focus states, empty states, loading states, and error states.
- Practical Documentation Engineers and Designers Actually Read: Clear usage guidelines regarding when to use a component, prop definitions, state variations, and do/don't examples. This should be hosted where the team works, such as Storybook or living repository docs, rather than a static PDF deck.
- A Lightweight Governance Model: Clear rules for who approves new tokens, when a one-off pattern graduates into the shared library, and how design and engineering keep Figma and production in sync without creating a bureaucracy that blocks weekly shipping.
- A Real Feature or Pilot Shipped With the System: Proving the system on a live product surface (such as a pilot project, core workflow, or mobile-tested flow) ensures edge cases, responsive behavior, and data density are stress-tested before the engagement ends.
- Handover to Your Internal Team: Walkthroughs, repository integration, and pairing with your developers and designers so your in-house team can maintain and extend the system independently after the external partner steps back.
Conclusion
Deciding who builds your component library comes down to your current scale and what is actually broken. If you are pre-product-market fit with one product and a small team, start from shadcn/ui and keep shipping features. If you have one messy component library to consolidate, hire a specialist via Toptal. If several squads ship UI weekly, hire full-time. And if you need an external studio, match the partner's operating model (Waveup, Bricx, Beew Studio, Humbleteam, or an embedded senior partner like Gev Design) to whether your problem is a standalone library sprint, a multi-platform alignment, or a product, brand, and codebase overhaul.
Frequently Asked Questions
How do we decide who can build a design system for our startup?
Match the builder to your stage and what is actually broken. Pre-product-market-fit startups should start in code with an open-source library like shadcn/ui. Startups with a single messy Figma library should hire a freelance specialist through Toptal, while multi-squad organizations shipping UI weekly should hire a full-time design systems designer or design engineer. For studio partnerships, choose Waveup for a 2-4 week scoped rollout with React and Storybook, Bricx for venture-backed AI startups wanting a standalone service, Beew Studio for scaling SaaS audits and Figma variables, Humbleteam to unify web and mobile under one voice, or Gev Design when the design system must be built alongside product UX, brand, positioning, and production front-end code.
When does a startup need a design system?
A startup needs a custom design system when several people are shipping UI in parallel, engineers have built the same component three different ways, or a rebrand or second product is on the roadmap. If you are still pre-product-market fit with one designer and one product, you do not need a custom system yet; start from an existing component library and focus on product-market fit.
Should our startup build a Figma library only, or coded components too?
A Figma library alone often drifts from production unless your engineers have dedicated time to translate tokens and states into code. Engagements that include coded components, such as Waveup's React components and Storybook docs or Gev Design's design engineering in the client's own codebase, close the gap where Figma and production stop matching.
When is a full-time design systems hire better than an agency or fractional partner?
A full-time design systems designer or design engineer is the right choice once several product teams ship UI every week and the system requires daily governance, component updates, and internal advocacy. Before that stage, an external studio or embedded senior partner can establish the foundation and hand it over to your team without permanent headcount overhead.
When does it make sense to combine product design, brand, and a design system in one engagement?
When your UI inconsistency is a symptom of deeper product UX or brand drift, such as preparing a first enterprise product or fixing a marketplace app that is hard to use on mobile. In those cases, cleaning up buttons in isolation just codifies broken flows; an embedded senior partner like Gev Design addresses product design, brand, positioning, the design system, and front-end code together.