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use.design logo - UX agency in Paris

use.design

Paris, France

10-49€125-175/hrResponds in 24h

About

Specialized product design and UX/UI agency focusing on professional software and AI-integrated interfaces.

Who They Work With

B2B software, industrial-HMI and medical-device teams needing senior UX on complex professional interfaces—Thales, Suez, Theraclion.

Engagements:Project-basedEmbedded teams

Based on 25 documented clients · verified Jul 2026

Our Take

use.design publishes 31 project pages concentrated in professional and embedded software—Thales air-traffic and cockpit interfaces, Suez and JRI supervision tools, Xerox and Eddyfi industrial HMIs, Scality and MEGA enterprise SaaS, and medical devices for Theraclion and Yseop.

The case studies that open into detail (Theraclion Sonovein, Yseop Copilot, Thales TopSky) run 600–900 words and describe a real process—field observation, co-creation workshops, Figma prototyping, and qualitative testing—but none publish quantitative outcomes, and the portfolio listing is otherwise screenshot-driven.

The AI positioning is visible but thin in evidence: the Yseop page is the clearest example, devoting roughly 80 words to symbolic AI versus LLM reliability, so buyers expecting deep AI-interface case work should ask for more.

Uniquely deep on safety-critical and industrial interfaces—air-traffic (Thales), water and IoT supervision (Suez, JRI), medical devices (Theraclion, Axigate)—with documented field research and co-design; the gap is published quantitative outcomes, and the 'AI' framing rests mostly on one real case (Yseop).

Key strengths

  • 31 project pages spanning regulated and technical domains—aerospace (Thales x4), water and IoT supervision (Suez, JRI), industrial HMI (Xerox, Eddyfi), enterprise SaaS (Scality, MEGA), and medical devices (Theraclion)—with recognizable client names
  • Detailed case studies document field observation, co-creation workshops, prototyping, and qualitative testing rather than visuals alone, with senior designers cited at 15–25 years of experience
  • Transparent productized pricing (Audit UX/AI from €5,400, Quick wins from €10,800, Project from €21,600) and French Innovation Tax Credit (CII) accreditation make budgeting and legitimacy easy to verify

Good to know

  • No case study publishes quantitative outcomes such as adoption, time-savings, or error reduction—ask for measurable results from comparable engagements before committing
  • The AI Design offering carries limited visible case evidence (one substantive AI example); request specifics on AI-interface deliverables and prior AI work if that is your priority
  • Exact team size and the split between in-house and distributed contributors are not disclosed—confirm who staffs your project and their domain experience
Gabor Kiss

Reviewed by Gabor Kiss

Founder of UX Agencies · UX Lead at SAP · May 30, 2026

Based on the agency's publicly available portfolio. Own this agency? Claim your profile to provide additional context or request a review update.


How we evaluate agencies

Notable Clients

Every engagement documented in a published case study

ThalesAir-traffic flow management (TopSky): friction analysis, stakeholder co-design, KPI/forecast UI, Agile specs; four aerospace projectsSource ↗
SuezDesign system across six Aquadvanced water-supervision apps, with front-end implementation and governanceSource ↗
XeroxRialto 900 industrial-printer HMI—remote-reading and navigation concepts and prototypes; two joint patentsSource ↗
FranfinanceSociété Générale leasing arm; Flashlease redesign—audits, personas, co-design, design-sprint testing, design systemSource ↗
HagerWitty EV-charging fleet-config interface; rapid prototyping and testing with French and German installer electriciansSource ↗
SNCFS2R future semi-autonomous train-cabin concepts; a driver-workstation study and three HMI concepts (InnoTrans 2022)Source ↗
Ville de ParisEnergy supervision of 1,500 heating centres (Design Thinking, co-creation) plus a social-aid mobile pivotSource ↗
MEGAHopex EA/BPM modernization—in-depth enterprise-architect interviews, realistic prototypes, a robust design systemSource ↗
TheraclionHIFU medical-device UX (Sonovein, Echopulse); OR field observation, co-creation workshops, safety-driven flowsSource ↗
YseopAI/NLG clinical-report Copilot; work with the founder and POs, pharma-lab interviews, 1,000+ screens, qualitative testingSource ↗
ScalityArtesca cloud-storage app; a US field study and a product-strategy pivot from a three-product mergeSource ↗
InvokeFinancial/tax-reporting editor (now Regnology); Uloa tax-filing SaaS—expert interviews, iterative prototyping, trainingSource ↗

Services

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