Tresor

Tresor is a product design and development studio founded in 2021, HQ based in Kyiv, Ukraine with a second office in Chicago. We work with gaming operators, esports organisations Agencies and SaaS teams whose product has outgrown the interface it launched with. One senior team owns the work end to end — UI/UX design in Figma, then WordPress, React or Next.js development, then launch. Designers and developers sit in the same team, which is the entire reason nothing is lost in handoff. 20+ senior specialists, no juniors on client work. Across 400+ projects: a 248-screen CS2 marketplace delivered end to end, a streamer rewards platform live 17+ months with $38M+ in deposits processed, a US rewards platform with $350K+ paid out to members. ⭐️ Top Rated on Upwork · 100% Job Success · $300K+ earned · 4,562 tracked hours ⭐️ 5.0 rating on Clutch · 6 verified client reviews 💬 "They were the best design company we've ever worked with by far." 💬 "We're impressed with Tresor's honesty, dedication, and the quality of their work." — verified reviews on Clutch 📩 Tell us what you're building and where it's underperforming — we'll come back in one reply with whether we're the right fit and what we'd change first.