What ctk does

CTK GmbH is a privately held German company headquartered in Pirmasens that operates under the consumer-facing brand "fit happens" and provides a turnkey system of ZPP-certified §20 SGB V prevention courses for fitness studios, physiotherapy clinics, and corporate health initiatives. Its core product is a portfolio of nine named prevention courses — Feelfit, Mobi, Lunafit, Skillcoach, Yummy, Yara, Neo, Milo, and MiloNext — covering the four statutory action fields of movement, stress, nutrition, and addiction prevention. The underlying technology is a cloud-hosted digital course delivery platform with web-based participant management, documentation, and evaluation tooling, supported by Cloudflare infrastructure; several courses are specifically designed to integrate with partner fitness equipment (milon, five, Sensopro, Skillcourt). CTK's business model combines subscription-based course licensing to studios and practices with transaction-fee facilitation of German statutory health insurance reimbursements; pricing is not publicly disclosed and is quote-based with monthly billing. Go-to-market is a consultative direct-sales motion to German SMB fitness studios, augmented by channel partnerships with fitness equipment manufacturers and a self-serve partner portal (partner.ctk.works), with an emerging corporate wellness offering through BGF initiatives under §3 Nr. 34 EStG. The company is led by three managing directors (Thomas Kelbling, Sven Rapphahn, Claudia Towae-Kelbling), has no disclosed institutional investors, and operates exclusively in Germany.

Name

ctk

Legal name

CTK GmbH

Website

https://ctk.works

Company type

Private

Operating status

Operating

Short description

CTK GmbH, operating as "fit happens," provides turnkey ZPP-certified §20 SGB V prevention courses covering movement, stress, nutrition, and addiction to German fitness studios, physiotherapy practices, and corporate clients via subscription licensing.

Ownership category

akta.pro rank

Product category

Health Prevention Services

NAICS

Technical and Trade Schools (61151), Technical and Trade Schools (6115)

SIC

Services-Educational Services (8200), Services-Prepackaged Software (7372)

akta.pro primary industry

General Personal Training (In-Person & Virtual) (HSADAAAA)

Keywords

• ZPP-certified prevention courses
• German health prevention platform
• Fitness studio prevention system
• Corporate health management
• Preventive course licensing

Headquarters

HQ city

Pirmasens

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

Revenue model

1. Course licensing/subscription: CTK provides ZPP-certified prevention courses to fitness studios and healthcare practices. Studios pay for access to certified course programs, trainer certifications, documentation systems, and implementation support. Revenue is generated through licensing fees for the course concepts and associated administrative systems.
2. Health insurance reimbursement facilitation: §20 prevention courses are covered by German statutory health insurance (ZPP-certified programs). Studios offering these courses can generate revenue through health insurance reimbursements, making the offering financially viable for studio operators.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

CTK provides a turnkey ZPP-certified §20 SGB V prevention course system for fitness studios and physiotherapy practices in Germany. The system delivers nine certified programs across the four statutory prevention action fields (movement, stress, nutrition, addiction) in analog, hybrid, or fully digital formats, including trainer certifications, curricula, documentation, and participant management, with selected courses integrated into partner fitness equipment (milon, five, Sensopro, Skillcourt).

Product overview

CTK provides a complete turnkey ZPP-certified §20 prevention course system with nine named prevention courses (Mobi, Feelfit, Lunafit, Skillcoach, Yummy, Yara, Neo, Milo, MiloNext) plus BGF services and a partner portal. The courses cover four action fields: movement, stress, nutrition, and addiction prevention. Delivery formats include analog (in-person), hybrid (combination of digital content with on-site sessions), and fully digital. Several courses are specifically designed to integrate with partner fitness equipment (Five, Sensopro, Skillcourt, Milon). The system handles all ZPP certification, documentation, and participant management for fitness studios and healthcare practices.

Differentiator

Problem solved

Functional benefit

Brands

• Feelfit: Movement course focusing on whole-body strength training for fitness studio members
• Yummy
• Yara
• Mobi
• Skillcoach
• Neo
• Lunafit
• Milo
• MiloNext

Products and services

• CTK Präventionskurse System Complete ZPP-certified §20 SGB V prevention course system for fitness studios and healthcare practices, covering all four prevention action fields (movement, stress, nutrition, addiction) with turnkey digital, hybrid, or analog delivery and integrated documentation, participant management, and ZPP compliance.
• Mobi A ZPP-certified mobility and flexibility course for posture improvement, range of motion, and fascial health, specifically designed for use with Five functional training equipment.
• Feelfit A ZPP-certified whole-body strength training course promoting physical activity, motivation, and sustainable healthy routines for integration into everyday life.
• Lunafit A ZPP-certified coordinative training course for stability, reaction ability, and body control, optimized for use with the Sensopro balance and coordination system.
• Skillcoach A ZPP-certified coordination and reaction training course improving movement quality and body control through structured units on Skillcourt surfaces.
• Yummy A ZPP-certified nutrition course teaching balanced, natural, and enjoyable eating habits for sustainable health changes in daily life.
• Yara A ZPP-certified stress prevention course building resilience, stress competence, and mental health with practical strategies for daily life and work.
• Neo A ZPP-certified digital smoking cessation program supporting sustainable behavioral change and improving performance, recovery, and overall health.
• Milo A ZPP-certified course teaching fundamental health-oriented strength training principles for safe entry into Milon strength training systems.
• MiloNext A ZPP-certified advanced strength training concept for users with higher training demands, deepening strength training knowledge and enabling targeted performance development on Milon systems.
• Initiative Gesundheit & Fitness (BGF) A corporate health and fitness initiative that positions CTK partner studios as health partners for local companies, enabling tax-advantaged employee health benefits under §3 Nr. 34 EStG.
• Partnerportal A self-serve partner portal for enrolled studio partners to manage and administer prevention courses and customer relationships, including access to course materials and operational support tools.

Quantifiable outcome

• Turnkey implementation reduces time to first course launch to approximately 3 months
• +1 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• miloncoreTechnology or IntegrationCTK integrates its Milo and MiloNext prevention courses specifically for Milon strength training equipment, enabling studios with Milon machines to offer certified strength training courses.
• five (Five Konzept)coreTechnology or IntegrationMobi prevention course is designed for training on Five equipment systems, coordinating mobility training with the Five functional training concept.
• SensoprocoreTechnology or IntegrationLunafit course program is optimized for training with the Sensopro balance and coordination system, offering structured coordination training sessions.
• SkillcourtcoreTechnology or IntegrationSkillcoach coordination training course is designed for use on Skillcourt surfaces, extending functional training capabilities with structured reaction and coordination units.
• VfRG (Verband für Fitness- und Gesundheitsstudios Rheinland-Pfalz)minorStrategic or Co-development PartnerRegional fitness studio association in Rhineland-Palatinate, listed as a partner in CTK's ecosystem.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• EGYM: Munich-based fitness technology company offering connected strength and wellness equipment plus a software platform for corporate and studio fitness. Comparable to CTK as a German B2B fitness-tech provider selling digital systems to studios and corporates, but operating at much broader scale and scope.
• clever fit: Large German discount fitness studio franchise. Comparable to CTK as a downstream buyer persona for ZPP-certified prevention courses and as a potential channel partner; CTK's prevention-as-bundled-service pitch targets chains like clever fit to deploy across their network.
• Kieser Training: German strength-training studio chain with a medical/prevention positioning. Comparable to CTK as a German premium strength-training operator that could either compete in or source prevention-course content; both companies operate in the prevention/medical-fitness overlap.

Others

• milon Industries: German manufacturer of computerized strength-training circuits used in studios and physiotherapy. Comparable to CTK as a core equipment-partner; milon and CTK co-sell Milo/MiloNext prevention courses and share the German studio install base, though milon competes as an OEM while CTK sells certified content.
• five Konzept: German functional-training equipment manufacturer whose devices are the basis for CTK's Mobi course. Comparable to CTK as a tightly integrated equipment and training-concept partner serving German studios.
• Sensopro: Swiss-based coordination and balance training equipment maker whose system underpins CTK's Lunafit course. Comparable as a Core integration partner sharing the DACH studio install base and prevention/training positioning.
• Skillcourt: Reactive/coordination training surface provider whose hardware is the foundation for CTK's Skillcoach course. Comparable as a tightly coupled equipment partner within CTK's prevention-course ecosystem.

Regional players

• Mrs. Sporty: Germany-focused women-only fitness franchise. Comparable as a downstream studio customer segment for CTK's prevention courses; similar to other German SMB studios targeted by CTK's turnkey model.
• Bodystreet: German EMS-training microstudio franchise. Comparable to CTK as a German studio-format target customer and adjacency in the prevention/medical-fitness segment, particularly relevant for hybrid/digital course delivery in space-constrained locations.

Emerging players

• Urban Sports Club: Berlin-based corporate wellness/sports subscription platform. Comparable to CTK in the German B2B corporate-wellness space (especially around §3 Nr. 34 EStG channels) and as a digital layer over fitness studios, though focused on access rather than prevention content.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ctkworks

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 ctk