Best UI/UX Design Agencies for SaaS Startups (2026)

Eleken is a UI/UX design agency for B2B SaaS, founded in 2015, with a distributed design team from Kyiv. Clients get a dedicated product designer, typically starting inside a week. Hubble Network came to Eleken as a Series A startup building a data-heavy geospatial SaaS tool with a detailed product requirements document but no designer. Eleken delivered the main dashboard three days after starting and designed separate flows so admins could manage alerts while other employees subscribed to them. It later revised the data import flow after the client's user testing exposed problems.

Cieden is a product design studio with a dedicated SaaS design service that covers customer-facing platforms from MVP to scale. Sitenna, a UK B2B SaaS startup backed by Y Combinator, set out to cut the time needed to set up 5G network sites, a process that had involved paperwork and dozens of separate tools. Cieden began with a brand sprint and research into user needs and competitors, then designed an interactive dashboard with filters for location, rental price, search area and distance. The product also gained a map view of sites and a complete workflow for each user role.

Lazarev.agency is a product design agency founded in 2015 that focuses on AI and B2B products and runs dedicated pages for SaaS companies and startups. Its services span UX research, UI/UX design, design systems, product design and web design. One of its SaaS cases is Accern, a natural language processing company, for which Lazarev.agency designed Rhea, an AI research product for financial analysts and investors, over a partnership that lasted years. The agency pitches that case to fintech startups and enterprise SaaS teams that work with large data sets and complex research workflows. Its other AI clients include the voice-first AI video editor Elva and the news aggregator VTnews.ai.

UX Studio is a UX design company established in 2013 and built by its founder, David Pasztor. OverseeAI envisioned a platform that would help insurance companies monitor the AI models they use in underwriting and claims. UX Studio helped conceptualize the product and built it from scratch with OverseeAI's developers, starting with a proof of concept and then an MVP that could be shown to investors. Discovery produced an executive persona and a claims manager persona and mapped the claims and underwriting processes. The team then designed the core dashboard around model health indicators and anomaly rates, plus a review page where users mark anomalies as false positives and send feedback that helps train the models.

Raw.Studio is a Sydney studio that designs brands and digital products. Snappr, a platform for finding and booking photographers, approached the studio after a funding round for help with conversions and user retention. Raw.Studio flew to San Francisco to run design thinking workshops on the mobile experience, then moved through rapid wireframes to final interfaces. Competitor analysis and market research pointed to room to grow with high-end customers, so the studio repositioned the brand toward them. It also built a design system for future features. For Maqro, an investing platform, it ran a branding workshop and user interviews before designing the brand and the app.