Cap3

What Cap3 does

Cap3 GmbH is a privately held German custom-software firm headquartered in Kiel, founded in August 2011 by Sören Fenner, Nicolas Günther, and Bettual Richter. The company employs approximately 30 people and operates without remote work, requiring daily in-office presence at its Ringstraße 19 headquarters. Cap3 generates revenue exclusively through professional services — B2B project-based custom development of web and mobile applications — and has never raised external funding, remaining wholly founder-owned.

The firm's product surface spans client-built applications and a small set of internal tools. Client work is delivered across healthcare (TK-Doc telemedicine app, TK-BabyZeit, the multi-insurer eVerordnung app launched November 2024, and engagements with at least eight German statutory health insurers), education and research (ITEMS for IPN Leibniz since 2011; LUCA Office Simulation with the University of Mannheim), government (Umweltbundesamt, Dataport, KV Schleswig-Holstein), insurance (Allianz), and consumer verticals (BeachNow digital beach-chair rental). Core technology stacks include React, TypeScript, Redux, Scala/Play Framework, .NET, PostgreSQL, GraphQL, Docker, and Kubernetes, with REST/OpenAPI and GraphQL APIs. Internal proprietary assets include a Gherkin-based specification methodology, a custom web-based manual testing tool, the Captre time-recording tool, and a module-based white-label architecture introduced April 2025.

Cap3's go-to-market is direct enterprise sales, beginning with non-binding consultation and proceeding to individually quoted project engagements, typically structured as multi-year contracts. Pricing is not publicly disclosed. The firm is certified to ISO/IEC 27001:2022 (information security) and ISO 9001:2015 (quality management), credentials that are effectively prerequisites for its healthcare and public-sector work. Distribution is concentrated in Germany, with no disclosed international footprint.

Name

Cap3

Legal name

Cap3 GmbH

Website

https://cap3.de

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Cap3 GmbH is a privately held, founder-owned B2B custom software firm in Kiel, Germany, with ~30 employees building web and mobile applications for enterprise clients in healthcare, education, research, government, and insurance.

Ownership category

akta.pro rank

Headquarters

HQ city

Kiel

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Custom Software Development: B2B custom software development services for web and mobile applications. Project-based engagements from strategy to full implementation, working in small agile teams with clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Cap3 develops custom web and mobile applications for enterprise B2B clients, taking projects from initial digital strategy and UX/UI design through to full implementation, testing, and long-term support. The company works in small agile interdisciplinary teams and has delivered notable software products including healthcare consultation apps, educational research platforms, tourism booking platforms, and research annotation tools. Operations are anchored in ISO 27001 and ISO 9001 certified processes and a proprietary Gherkin-based testing methodology.

Product overview

Cap3 is a B2B software partner developing custom web and mobile applications since 2011. Their product portfolio includes consumer-facing apps like BeachNow for digital beach chair rental (with separate tenant/landlord management tools), healthcare applications such as TK-Doc for medical consultations and TK-BabyZeit for pregnancy support, educational platforms including ITEMS for test development and LUCA for office simulation, and research tools like ValidITy for underwater exploration. They also operate internal tools including Captre for time tracking and a proprietary web-based testing tool. The company follows an agile development approach with expertise spanning product discovery, UX/UI design, and full-stack software development.

Differentiator

Problem solved

Functional benefit

Products and services

• BeachNow (Consumer App) Mobile platform for beachgoers on Sylt offering a digital user experience for booking and accessing beach chairs via app, including interactive map selection and app-based unlocking through the BeachNow lock.
• BeachNow for Tenants Landlord/tenant app for digital beach chair rental management across Android, iPad, and web-based back office, enabling real-time synchronization and location-independent process control for tourism operators.
• TK-Doc Mobile app providing Techniker Krankenkasse insured persons with 24/7 access to medical advice via chat, telephone, or video consultation, including an integrated symptom checker, e-prescriptions, and sick notes.
• LUCA Office Simulation Innovative web-based learning platform for business skills training developed for the University of Mannheim, depicting realistic office scenarios with configurable situations, automated feedback, and semi-automated assessments.
• ITEMS Web-based modular system for creating, archiving, and executing tasks and tests for empirical educational research, supporting collaborative test development since 2011 with the IPN (Leibniz Institute for Science Education).
• ValidITy Research software for annotation and analysis of underwater objects developed for GEOMAR Helmholtz-Zentrum für Ozeanforschung, using AI-based automation to make industrial underwater exploration more efficient through optimized workflows and intuitive user guidance.
• Custom Web and Mobile Application Development End-to-end custom software development services for web and mobile applications using modern technologies (React, TypeScript, Redux, GraphQL, PostgreSQL, Scala/Play Framework, .NET, Docker, Kubernetes). Engagements span digital strategy, prototyping, UX/UI design, implementation, testing, and long-term support for enterprise B2B clients.
• UX/UI Design Services User experience and interface design services focused on user-friendliness, delivered as part of Cap3's interdisciplinary custom software engagements to create seamless, high-quality experiences for end users of client web and mobile applications.

Quantifiable outcome

• Long-term partnerships with clients since 2011, with many employees remaining for extended periods (e.g., 10-year employee anniversaries)
• +1 more outcomes

Named customers24 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability1 record

Feature4 records

Partnerships

Four partnerships are on record, tiered core.

• TeleCliniccoreTechnology or IntegrationTechnology partner integrated into the TK-Doc app enabling flexible communication via live chat, video consultation, or telephone with medical professionals. TeleClinic provides the core telemedicine infrastructure for Techniker Krankenkasse insured persons.
• Stiftung GesundheitcoreTechnology or IntegrationPartner for the TK Doctor Guide feature. Provides official Health Structure Index data including addresses, specialties, services, and patient reviews for doctor searches. Interface handles authentication and detailed practitioner data with special filters via API.
• IPN (Leibniz Institute for Science Education)coreStrategic or Co-development PartnerLong-term research partner since 2011 for ITEMS platform development. Collaborative development of web-based system for educational research testing. Partnership continues with ongoing optimization based on individual requirements.
• University of MannheimcoreStrategic or Co-development PartnerDevelopment partner for LUCA Office Simulation learning platform. Close cooperation in creating innovative software solution for realistic office simulation. Professor Dr. Andreas Rausch involved in collaborative development.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• neusta GmbH: Bremen-based German digital agency with comparable headcount offering custom web, mobile, and enterprise software development across regulated and B2B verticals. Similar B2B project model and size class to Cap3.
• codecentric AG: Mid-sized German custom software and consulting firm with strong focus on Java/Scala, cloud, and DevOps. Comparable in offering custom enterprise applications to B2B clients, though somewhat larger and more tech-focused than Cap3.
• jambit GmbH: Stuttgart-based German custom software development company of similar size, delivering tailored enterprise and mobile applications to B2B clients including regulated industries. Closely comparable services model and customer profile.
• TWT Digital Group: Cologne-based German digital agency and custom software developer. Similar mix of UX/UI design, web, and app development for B2B enterprise clients in healthcare, public sector, and industry.
• dkd Internet Service GmbH: Frankfurt-based German digital agency offering custom web, mobile, and enterprise software development, with a similar project-based B2B model. Comparable in services scope and customer types to Cap3.
• mgm technology partners: Munich-based German custom software house with a strong focus on web, mobile, and enterprise platforms for B2B and public sector clients. Similar project-based services and comparable in regulated-industry delivery.
• cosee GmbH: Darmstadt-based German custom software development firm of similar size, focused on mobile, web, and embedded applications for B2B clients. Comparable boutique services profile and headcount class.
• andrena objects: Karlsruhe-based German agile software development company delivering custom enterprise software with comparable project-based B2B model. Similar size class and culture-driven positioning to Cap3.

Broad incumbents

• SinnerSchrader (Accenture Song): Long-established Hamburg-based German digital agency, now part of Accenture Song, delivering custom digital products, UX/UI, and software at significantly larger scale. Comparable in core services but operates as a broad incumbent rather than a specialized boutique.
• Sopra Steria: Large European IT services group with significant German presence, providing custom enterprise software and digital transformation to public sector and regulated clients. Overlaps with Cap3 in healthcare and government verticals at much larger scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/capdrei
• Facebookfacebook.com/cap3.de
• LinkedInlinkedin.com/company/cap3-gmbh

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Cap3