What User Interface Design does

User Interface Design GmbH (UID) is a German user experience design agency founded in 1998 in Darmstadt and operating as a subsidiary within the BAYOONET Group (~400 experts). The company delivers end-to-end UX services spanning user research, UX design, UX enablement, frontend development, and software development, supplemented by UX strategy, innovation consulting, experience design, service design, HMI design, sustainable UX, design system development, and training/coaching programs such as UID Live masterclasses. It serves enterprise clients across five verticals — Consumer, Enterprise, Industry (including industrial HMI), Medical, and Mobility — and cites 5,000+ completed projects, ISO 9001, ISO 13485, ISO 9241-210, and IEC 62366 certifications, and core system-partner status with Bosch Rexroth for the ctrlX AUTOMATION platform.

Technically, UID's delivery is built around the human-centered design process per ISO 9241-210 and IEC 62366, layered with proprietary methodologies including the Sustainable UX 6Rs framework (Rethink, Research, Reflect, Reduce, Repair, Reuse), compressed Discovery and Design Sprint formats, the Sustainability Opportunity Canvas, and a MatchMAXing approach for UX strategy alignment. Delivery is supported by an in-house research lab (UIDlabs), a sub-brand for organizational change management (Changitors), a network of partner companies within BAYOONET AG, and external research collaborations (e.g., with KIT on HoloMed AR for neurosurgery and with PLRI/DSI Aerospace on DR. BEAT ballistocardiography).

Commercially, UID operates a fully bespoke, sales-led, quote-driven professional services model managed by a named sales leadership team (CEO Ralph Siegert, Director Sales Franz Koller, Manager Sales Ka Hoa Lam). All engagements — consulting, training, coaching, and masterclasses — are scoped per project, with multi-year contracts typical for enterprise accounts and no publicly disclosed pricing. Go-to-market combines direct enterprise sales with content marketing (Insights blog, newsletter, whitepapers), events (UID Live masterclasses, speaker bureau, conferences), earned media (design awards: IUX Award 2024, UX Design Award 2024, Innovationspreis NEO 2024; Top UX/UI in Germany 2023 and 2025), SEO across German and English websites, and intra-group cross-referral via the BAYOONET, YOOme, VDMA, and VDE networks.

Name

User Interface Design

Legal name

UID GmbH

Website

https://uid.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

UID (UID GmbH) is a German UX design agency founded in 1998 that provides user research, UX design, UX strategy, and frontend and software development services to enterprise clients across five verticals: Consumer, Enterprise, Industry, Medical, and Mobility.

Ownership category

akta.pro rank

Product category

User Experience (UX) Design Consulting Services

NAICS

Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Graphic Design Services (54143)

SIC

Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370), Services-Management Consulting Services (8742)

akta.pro primary industry

UI/UX Engineering & Front-End Modernization (BPAEAFAH)

akta.pro secondary industries

Custom Application Development (Web/Mobile/Desktop) (BPAEAFAA), Enterprise Application UX, Portals & Low-Code Extensions (BPAEAGAM), Digital Creative & Experience Design Agencies (Web/App/UX) (MPAAAAAD)

Keywords

• UX design services
• User research consulting
• HMI design
• UX strategy consulting
• Design systems

Headquarters

HQ city

Munich

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. UX Consulting and Design Services: UID generates revenue primarily through bespoke consulting engagements covering the full product lifecycle: user research, UX design, frontend development, and software development. Services are priced per engagement or project, with named sales contacts managing enterprise accounts. Engagements range from individual UI designs to complete product families.
2. UX Training and Education: UID offers structured training programs including live masterclasses (in-person with 1:1 coaching), operational UX training sessions, and management workshops. Training is sold as packaged offerings and bespoke in-house programs for enterprise clients.
3. UX Coaching Services: Individualized coaching packages for UX professionals, including 'Team of One' and 'UX Lead' programs. Each package includes a kick-off and 8 coaching sessions, available remote or on-site, long or short term.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

UID is a German UX agency providing end-to-end user experience consulting services across the full product lifecycle. Core offerings span User Research, UX Design, UX Enablement (including Frontend and Software Development), complemented by solution areas in Innovation, Experience Design, and UX Strategy. The firm serves enterprise clients in five verticals — Consumer, Enterprise, Industry (HMI/automation), Medical, and Mobility — delivering bespoke, quote-based engagements from product ideation through frontend implementation and organizational UX embedding.

Product overview

UID is a UX agency offering a comprehensive portfolio of user experience design services. The core offering spans five integrated service areas: User Research, UX Design, UX Enablement (including Frontend Development and Software Development), organized under solution areas of Innovation, Experience Design, and UX Strategy. Supporting offerings include specialized services such as Service Design, HMI Design for industrial applications, Design Systems development, and Sustainable UX consulting. UID also provides enablement products including Expert Reviews, UX Coaching packages (Team of One, UX Lead, Non-Design Manager), Discovery Sprints, and training programs (UID Live Masterclasses, UX Training & Schulung). The company operates across five industry verticals: Consumer, Enterprise, Industry (including HMI/industrial applications), Medical, and Mobility.UID functions as a full-service agency delivering end-to-end solutions from product ideation through frontend implementation, complemented by organizational change and capability-building services.

Differentiator

Problem solved

Functional benefit

Brands

• UIDlabs: Research and innovation laboratory focused on cutting-edge UX research projects

Products and services

• User Research

Quantifiable outcome

• 20–30% increase in productivity and efficiency for machine operators using well-designed HMIs
• +2 more outcomes

Named customers12 records

Ideal customer profiles3 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• TestbirdscoreStrategic or Co-development PartnerTestbirds and UID formed a strategic cooperation combining methodologically sound user research with crowdtesting of real-world usage. Testbirds provides crowdtesting capabilities for real-life user validation, while UID contributes strategic user research expertise. This enables UID's clients to access both rigorous UX methodology and scalable real-world usage testing.
• BAYOONET AG (Parent Group)coreStrategic or Co-development PartnerUID is a member of the BAYOONET Group, which comprises approximately 400 experts specializing in medical device engineering, complex software development, and UX. The group structure enables cross-selling across regulated and non-regulated industries and provides UID access to deep technical engineering capabilities.
• DSI Aerospace Technologie GmbHminorStrategic or Co-development PartnerPartner in the DR. BEAT research project (Digital Research on Ballistocardiography for Extraterrestrial And Terrestrial Use), combining space technology with medical engineering. DSI contributes aerospace sensor expertise for developing a ballistocardiographic sensor system for heart disease diagnostics.
• Peter L. Reichertz Institut für Medizinische Informatik (PLRI)minorStrategic or Co-development PartnerAcademic research partner in the DR. BEAT project, contributing medical informatics expertise for the development of a BCG sensor system for continuous health monitoring.
• KIT – Karlsruhe Institute of TechnologyminorStrategic or Co-development PartnerCollaborated with UID in the HoloMed research project to develop an augmented reality app for neurosurgeons. KIT implemented the technical realization from the University of Applied Sciences Karlsruhe, while UID conceived and designed the AR application.
• ChangitorsminorOthersChangitors is UID's brand for organizational change management and digital transformation consulting. It operates as a separate entity (changitors.com) and cross-refers clients needing organizational UX transformation services. It is part of the UID ecosystem, not an independent third-party partner.
• UIDlabsminorOthersUID's dedicated research and innovation laboratory entity (uidlabs.de) that coordinates UID's participation in national and international research projects, including those listed on the research projects page.
• YOOme (Medical Companies Network)minorStrategic or Co-development PartnerUID is part of YOOme, described as the largest company network for medical device development in Europe. YOOme connects medical technology companies, and UID contributes UX expertise to medical device development within this ecosystem.
• Bosch Rexroth AGcoreStrategic or Co-development PartnerUID is a system partner for Bosch Rexroth's ctrlX AUTOMATION platform. UID supports customers in implementing HMI solutions with ctrlX AUTOMATION, accompanying the complete ideation, design, and development process. UID has deep expertise in migrating legacy .NET/Qt systems to HTML5 web-HMI solutions on the ctrlX platform.
• VDMA (Verband Deutscher Maschinen- und Anlagenbau)minorOthersUID is an active member of VDMA and VDE industry associations. UID's CEO Ralph Siegert serves on the board of the VDMA Software & Digitalization sector, helping advance digitalization in mechanical and plant engineering.

Scale indicators4 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• SinnerSchrader (Accenture Song): Formerly one of Germany's largest independent digital and UX agencies, now part of Accenture Song. Directly comparable to UID as a DACH-headquartered UX/digital product agency serving enterprise clients with similar service portfolios.
• Zeix: Swiss UX agency offering user research, UX design, and software engineering. Comparable to UID as a DACH-region boutique UX agency with similar end-to-end service model and strong enterprise client roster.
• Oddity: German digital agency with strong UX, branding, and digital product capabilities. Comparable to UID as a Stuttgart-region-headquartered peer with similar enterprise UX services.
• TWT Interactive / TWT Digital: German digital agency with UX strategy, design, and technology services. Comparable as a Germany-based multi-vertical UX and digital product consultancy serving enterprise clients.
• Futurice: Nordic digital engineering and design consultancy combining strategy, design, and software development. Comparable to UID as a multi-vertical UX and digital product consultancy with international reach and similar methodology-led positioning.
• Userlutions: German UX research and usability agency focused on user research, UX design, and product testing. Comparable to UID as a Germany-based UX specialist with overlapping research-led service offerings.

Broad incumbents

• Thoughtworks: Global technology consultancy combining strategy, design, and software engineering for enterprise clients. Comparable to UID on the engineering-plus-UX intersection across regulated industries.
• McKinsey Design (McKinsey & Company): Design and innovation arm of McKinsey, integrating UX with C-suite strategy engagements. Comparable to UID at the strategic UX/organizational transformation end, with vastly broader reach and pricing power.
• IDEO: Global design and innovation firm and one of the original UX pioneers. Comparable to UID as a premium human-centered design consultancy with multi-vertical reach, though operating at significantly larger scale.
• Fjord (Accenture Song): Global design and innovation consultancy within Accenture Song, serving many of the same enterprise verticals (consumer, industry, mobility) as UID at much larger scale and broader geographic reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/hellotechnology

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about User Interface Design