S3 Praxiscomputer

What S3 Praxiscomputer does

S3 Praxiscomputer GmbH is a privately held German software company headquartered in Weinheim, founded in 1983, that builds and sells S3-Win, a Windows-based practice management system (Praxisverwaltungssystem) for medical and psychotherapy practices in Germany. The product, built on 25 years of iterative development, manages patient records, appointments, billing, and insurance claims, and is gematik-certified to integrate with the full suite of German telematics infrastructure (TI) applications, including the electronic patient file (ePA), electronic prescription (eRezept), electronic certificate of incapacity (eAU), and the KIM secure communication service. S3 partners with Deutsches Gesundheitsnetz (DGN) for TI gateway, Konnektoren, and GUSbox routers; with medisign (a DGN subsidiary) for eHBA and SMC-B cards; with secunet for connectors; with mediDOK for archiving; and with Corti for AI-powered documentation (S3KI).

The company monetizes primarily through multi-year software maintenance subscriptions (18-month minimum contract, auto-renewing), hardware pass-through (Konnektoren, card terminals, GUSbox) with both purchase and rental options, and third-party subscriptions such as Securepoint security products. Recurring revenue streams also include health-insurer-reimbursed KIM service fees (€100 setup plus €23.40 per quarter per practice). Distribution is direct via the company website, dedicated support hotlines, and webinars, supplemented by a German reseller partner network (Vertriebspartner) and sister-company InterData Praxiscomputer within the DGN group.

Name

S3 Praxiscomputer

Legal name

S3 Praxiscomputer GmbH

Website

https://praxiscomputer.de

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

11–50 employees

Short description

S3 Praxiscomputer GmbH is a German software firm that sells S3-Win, a gematik-certified Windows practice management system with full German telematics infrastructure integration, to medical and psychotherapy practices across Germany, supplemented by hardware, KIM services, and AI documentation.

Ownership category

akta.pro rank

Product category

Medical Practice Management Software

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151)

SIC

Services-Computer Programming Services (7371)

akta.pro primary industry

EHR Implementation, Optimization, Training & Managed Services (HLACAAAL)

Keywords

• Practice management software
• Medical practice IT
• Telematics infrastructure
• Electronic patient records
• Healthcare IT software

Headquarters

HQ city

Weinheim

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licensing and Maintenance: S3-Win practice management software sold with initial license and ongoing software maintenance (Softwarewartung) contracts. Minimum contract term of 18 months, auto-renewing thereafter.
2. Hardware Sales: Sale of TI hardware including connectors (Konnektoren), card terminals, and routers such as DGN GUSbox. Connectors available for purchase or rental.
3. Software Maintenance (Wartung): Ongoing software maintenance, support, and updates for S3-Win. Includes 18-month minimum contract period with 6-week termination notice after initial term.
4. TI-Konnektor Subscription: Rental option for DGN TI Konnektor with monthly payments, replacing one-time purchase model.
5. Professional Services: Installation, training, support, and remote maintenance services for TI infrastructure setup and ongoing operations.
6. KIM Setup Fees: One-time setup fee for KIM communication service, covered by health insurance at 100 Euro per practice.
7. KIM Quarterly Fees: Recurring quarterly fee for KIM communication service at 23.40 Euro per practice per quarter, financed by health insurance.
8. Third-Party Software Subscriptions: Sales of third-party security software subscriptions including Securepoint AntiVirus and Firewall (12 or 36 month terms).

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

S3 Praxiscomputer develops and sells S3-Win, a Windows-based practice management software (Praxisverwaltungssystem / PVS) for German medical and psychotherapy practices, covering patient records, appointments, billing, and full integration with the German Telematikinfrastruktur (TI) including eRezept, eAU, ePA, and KIM services. The company also distributes related TI hardware (Konnektoren, card terminals, DGN GUSbox routers) and offers modules for AI documentation, online scheduling, patient self-check-in, online backup, IT security, and family-physician care programs.

Product overview

S3 Praxiscomputer GmbH offers S3-Win as its core medical practice management software (PVS/Praxisverwaltungssystem) for German physician practices, built on over 25 years of experience. The product portfolio centers on S3-Win supplemented by numerous specialized modules and integrations covering telematics infrastructure (TI-Fachanwendungen), electronic patient records (ePA 2.0), AI-powered documentation (S3KI powered by Corti), secure communication (KIM), patient services (terminals, online scheduling), and IT security solutions. The company partners with DGN (Deutsches Gesundheitsnetz) for TI gateway services and hardware connectors, integrates with third-party solutions like mediDOK for archiving and ImpfDocNE for vaccination management, and supports all major German health telematics components including eRezept, eAU, and electronic signatures via eHBA/SMC-B cards.

Differentiator

Problem solved

Functional benefit

Products and services

• S3-Win (S3 für Windows) Modern Windows-based medical practice management software (PVS/Praxisverwaltungssystem) that manages patient records, appointments, billing, electronic health cards, and integrates all telematics infrastructure applications including ePA, eAU, eRezept, and KIM communication. Targeted at German medical and psychotherapy practices.
• S3KI - Künstliche Intelligenz mit S3 (AI Documentation) AI-powered medical documentation feature powered by Corti that automatically generates clinical documentation from physician consultations using natural language processing, reducing administrative workload for physicians.
• Elektronische Patientenakte (ePA) Electronic patient record module supporting the mandatory German ePA 2.0 system; enables patients to store and share medical documents, images, and health data with healthcare providers, fully integrated in S3-Win.
• Telematikinfrastruktur mit S3 (TI) Complete telematics infrastructure package including connectors (Konnektoren), card terminals, eHBA/SMC-B cards, and KIM services, supplied in cooperation with DGN as TI gateway provider; supports both on-premise connectors and cloud-based TI-Gateway.
• Kommunikation im Medizinwesen (KIM) Secure encrypted email and document exchange service within the German telematics infrastructure for transmitting electronic physician letters (eArztbrief), eAU certificates, and other medical documents between healthcare facilities, hospitals, and insurance providers.
• S3 Patiententerminal Self-service patient check-in terminal allowing patients to register independently upon arrival at the medical practice, reducing reception administrative workload.
• S3 Online-Terminkalender (DocVisit) Online appointment scheduling system for medical practices, accessible via DGN GUSbox, allowing patients to book appointments online.
• S3 Online-Backup Cloud-based backup service for practice data, providing secure off-site data storage and disaster recovery capabilities.
• IT-Sicherheit IT security solutions including Securepoint antivirus software, Securepoint firewall subscriptions (12 or 36 month terms), VPN for home offices, and RFID user authentication, designed to meet KBV IT security guidelines for medical practices.
• DGN GUSbox Certified KV-SafeNet router from partner DGN providing secure VPN connectivity to the telematics infrastructure, supporting KIM communication and serving as an alternative to single-box on-premise connectors.

Quantifiable outcome

• ePA mandatory use from 01.10.2025 for all practices
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration12 records

AI capability2 records

Feature10 records

Partnerships

Five partnerships are on record, tiered core and strategic.

• CorticoreTechnology or Integration · 1 November 2025Corti provides AI-powered medical documentation technology integrated into S3-Win. The partnership enables AI-assisted documentation to reduce administrative burden on physicians. S3-KI powered by Corti automatically generates medical documentation from consultations.
• Deutsches Gesundheitsnetz (DGN)coreTechnology or Integration · 1 May 2025DGN is the TI-Gateway provider and KIM service provider. S3 distributes DGN products including TI Konnektoren, GUSbox routers, and KIM communication services. DGN received gematik certification as TI-Gateway provider. DGN CEO Johannes Kuhn oversees the partnership. DGN is the exclusive provider for fully integrated DGN KIM-Dienst in S3-Win.
• medisigncoreTechnology or Integrationmedisign is a DGN subsidiary that issues electronic health professional cards (eHBA) and practice cards (SMC-B) for TI authentication. S3-Geschäftsführer Armin Flender also serves as medisign Managing Director. medisign is now authorized to issue eHBA Generation 2 (G2) for physicians and dentists.
• mediDOKstrategicTechnology or IntegrationmediDOK provides archive software integrated with S3-Win for seamless document exchange between ePA and practice primary documentation. Documents and images stored in mediDOK Archive can be uploaded to patient ePA via drag-and-drop. S3 manages ePA access within the practice software.
• InterData Praxiscomputer GmbHcoreStrategic or Co-development PartnerInterData is a sister company within the DGN group, developing practice management software alongside S3. Both companies collaborated on rapid implementation of digital vaccination certificate functionality during COVID-19. Dirk Fellenberg serves as InterData Managing Director. Both companies share strategic direction within the DGN group.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• CompuGroup Medical SE: Germany's largest ambulatory healthcare software vendor, with PVS products (MEDISTAR, medisoft) that compete head-to-head with S3-Win for German Arztpraxen and Psychotherapeutenpraxen. Operates the same TI-integrated practice management category at significantly larger scale.
• medatixx GmbH & Co. KG: Leading German PVS vendor offering Turbomed, x.concept, and easymed for ambulatory practices. Direct competitor to S3-Win in gematik-certified practice management, KIM/ePA workflows, and TI infrastructure bundling.
• InterData Praxiscomputer GmbH: Sister company within the DGN group that also develops PVS software for German medical practices. Closest comparable peer in product scope and regulatory positioning, sharing strategic direction with S3.
• HASOMED GmbH: German medical software company with practice management and clinical documentation products serving physicians and therapists. Comparable in category (ambulatory practice software) and German regulatory alignment.

Emerging players

• Samedi GmbH: German healthcare appointment scheduling and care coordination platform. Overlaps with S3's DocVisit Online-Terminkalender and S3 Patiententerminal as an adjacent patient engagement layer.

Broad incumbents

• Doctolib GmbH (Docplanner Group): Major European patient booking and practice management platform with large German market share. Competes for ambulatory practice software wallet but operates at much broader scale and with a cloud-native, patient-led model.
• Oracle Health (formerly Cerner): Global healthcare IT incumbent with EHR-adjacent offerings. Limited direct overlap in German ambulatory PVS, but a strategic reference point for how enterprise-grade EHR stacks compete for larger hospital and group-practice contracts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mediamed-systec-gmbh

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 S3 Praxiscomputer