--- title: "Design System Agency for B2B SaaS | Donux" description: "Scalable design systems for B2B SaaS: Figma component libraries, design tokens, dev handoff docs, and team training. Book a discovery call with Donux." url: "https://donux.com/use-cases/design-system" language: "en" --- # B2B SaaS Design System One system. Every product. A design system for complex B2B SaaS products: tokens, accessible components and patterns your designers, developers and AI agents share. Then carried to web, email and video. [Talk to Donux](https://donux.com/contact-us) [**4.9/5** on Clutch 9 client reviews](https://clutch.co/profile/donux#reviews) Selected product design clients - 4DEM - Fluida - La Marzocco - Blue.ai [The Donux build system](https://images.donux.com/website/videos/donux-build-system-v3.mp4) One unified design system powers an agent-ready digital product and coordinated tools for web, email, social and video. ## Start with the product. Extend the system. [Product ↓](https://donux.com/use-cases/design-system#channel-product)[Web ↓](https://donux.com/use-cases/design-system#channel-web)[Email ↓](https://donux.com/use-cases/design-system#channel-email)[Social ↓](https://donux.com/use-cases/design-system#channel-social)[Video ↓](https://donux.com/use-cases/design-system#channel-video) Product ### The foundation. Tokens, accessible components, interaction patterns and documentation. The system begins where your customers do their work. Web ### Every page belongs. Reusable page sections, CMS structures and agent instructions turn the product’s visual language into a website your team can evolve. Email ### Recognizable in the inbox. Responsive email components and templates for lifecycle messages, campaigns and product updates. Adapted for the constraints of email clients. Social ### A consistent presence. Editable layouts, type rules and asset guidance help your team create announcements and campaigns without reinventing the brand. Video ### Your brand, in motion. Motion rules, title treatments and reusable video templates carry the same character into demos, launches and release communication. ## Shared decisions. Purpose-built tools. ### One source of direction. Tokens, typography, spacing, voice and interaction rules are documented and versioned. Agents and people have a clear reference for creating and reviewing changes. ### Adapted to each surface. A product screen, an email and a video have different constraints. Shared brand decisions travel through the right components and templates for each channel. ### Consistency you can maintain. Ownership, contribution rules, release notes and a review process make the system usable after handover. We define how updates reach the relevant templates. ### A scope you can see. The assessment names the component families, channels and templates you receive. Your team gets working tools and examples, not an unlimited content-production promise. > Working with Donux enabled us to iterate much faster, and as a result, we increased the adoption of a key product feature from 17% to 66%. **Mario** CTO @ 4Dem [Our work with 4DEM](https://donux.com/case-studies/4dem) ## F.A.Q. ### Do you build the design system in Figma only, or also in code? Both. We deliver the agreed Figma library, tokens, implemented components and documentation. Product, web and channel templates use the same brand decisions, with implementations adapted to each surface. ### How long does a design system take to build? A first conversation defines the relevant scope, dependencies and investment. For an existing product transformation, we confirm what fits the 90-day delivery window before kickoff. A focused supporting engagement is scoped separately. ### What if we already have a design system that's broken or outdated? We audit what you have, clean it up, and rebuild it the right way. It's often faster than starting from scratch. We learn from your existing patterns. ### Can the design system grow with our product? Yes. That's the whole point. We set up the system so your team can add components, patterns, and tokens as your product evolves. We also provide a maintenance playbook. ### What happens after we launch the design system? We hand over full ownership and provide training. You're not dependent on us for updates or maintenance. We stay available for ongoing support if needed. ### Do you work with our developers to ensure integration? Yes. We work closely with your dev team during implementation. Smooth handoff, design tokens set up correctly for your tech stack. ### Can I build my design system through Magic Team? Yes! Magic Team is a managed team of AI agents and senior humans that ships real code. Connect your repo and get features, MVPs, or bug fixes delivered as PRs, reviewed by Donux senior designers and developers. ## One system. Real product families. [4Dem product preview](https://images.donux.com/website/videos/case-studies/02-4dem-tablet-tilt.mp4) Marketing & Sales ### How 4Dem decreased development time by 50% through the Donux design system approach [Explore the project](https://donux.com/case-studies/4dem) [Fluida product preview](https://images.donux.com/website/videos/case-studies/05-fluida-product-fan.mp4) HR Tech ### How Fluida accelerated its acquisition through a scalable design system across four products [Explore the project](https://donux.com/case-studies/fluida) ## Keep exploring. [Understanding design tokens](https://donux.com/blog/introduction-to-design-tokens) [Build the foundation in context](https://donux.com/90-day-transformation)