UX/UI design agency for SaaS and B2B products

A UX/UI design agency researches how people use a product, designs the flows and structure, and builds the visual interface. At 90five that covers user interviews, audits, wireframes, prototypes, UI design, design systems, usability testing and handover to your engineers.

UX is the structure, flow and logic of a product: how someone moves through it and what happens when they act. UI is the visual layer: buttons, typography, color and components. We treat them as one system, because a clear layout cannot fix a confusing flow.

Yes, most of our product work is for SaaS and B2B teams. That means onboarding, dashboards, data-heavy tables, settings, roles and permissions. These interfaces have to serve new users and power users at once, and that tension shapes most of our design decisions.

Both. For an existing product we usually begin with a UX audit and user interviews, so we change what is actually causing problems instead of redrawing everything. For a new product we start from research and a prototype before any engineering begins.

Yes. We work next to your team, in the tools you already use. We can lead the design or support your designers, and we hand over specs, states and component documentation so your engineers know exactly what to build.

It depends on scope. Product design engagements start at $35k. Send us a short description of what you are building and where it hurts, and we will come back with an estimate based on your actual product, not a generic package.

We put a clickable prototype in front of people from your target group and watch them try to complete real tasks. We note where they hesitate or get lost, then refine the flows. We test early with the prototype and again on the finished design.

We can. Many teams hand our designs to their own engineers. If you want us to build, we work in code with Astro and Next.js and manage content with Sanity. For a lean first version, see our MVP development service.

You receive the final screens, a clickable prototype, a design system with documented components, and specs for engineering. You also get the research findings behind the decisions, so your team can keep building without starting from scratch.