Jk International GmbH

What Jk International GmbH does

Wellsystem is the commercial brand of JK-International GmbH, the German operating entity of JK Group (founded 1927), which designs, manufactures, and sells premium hydrojet over-water massage systems and red light photobiomodulation (RedWave) devices. Core products include hydrojet systems (Wave_Touch, MedWave_Touch, Medical, Medical_Plus, Relax_Plus, HydroWave Bed) and red light/NIR devices (RedWave Plus, RedWave Plus Booth); the MedWave_Touch, Medical, and Medical Plus lines are certified as Class IIa medical devices under EU MDR (Regulation 2017/745). Technical differentiators include proprietary Hydrojet water-massage technology with a 3D shoulder massage capability, an NFC interface with chip card program management, and RedWave Plus systems using over 4,400 high-performance LEDs at 630nm/660nm (red) and 850nm (near-infrared) wavelengths.

The company sells primarily through direct enterprise field sales supported by a mobile Wellmobil showroom and an authorized partner network, with quote-based, non-publicly-disclosed pricing on professional and medical-grade hardware. Target customers are B2B buyers across luxury hospitality (Kempinski, Hilton, Hyatt, Vandervalk), fitness studios (Fitness First), spas and wellness centers (Lifehouse Spa, Touchless Wellness), medical and therapeutic practices, and the emerging longevity and biohacking segment (Hale.Now). Distribution spans 50+ countries across 6 continents, with four production facilities in Germany anchoring a "Made in Germany" engineering positioning.

Revenue mechanics are anchored in premium hardware unit sales (professional wellness equipment and Class IIa medical devices), complemented by adjacent software and accessories (PC-based Hydrojet Control, HydroWave smartphone app, NFC chip cards). The company explicitly segments its addressable market into Hotels & Hospitality, Fitness & Longevity Studios, Medical & Therapeutic Practices, Spas & Wellness Centers, and High-End Consumers, with longevity/biohacking positioned as a growth vertical. Strategic signals in 2024–2026 include product launches (RedWave Plus Matt Black Edition, RedWave Plus Booth combining red light with Vibra Shape vibration training), the Hale.Now partnership in Germany, and continued geographic partner expansion.

Name

Jk International GmbH

Legal name

JK-International GmbH

Website

https://wellsystem.de

Company type

Private

Founded year

1927

Operating status

Operating

Headcount range

1–10 employees

Short description

Wellsystem (JK-International GmbH), part of Germany's JK Group since 1927, designs and manufactures premium hydrojet over-water massage systems and red light photobiomodulation devices, including EU MDR Class IIa-certified medical systems, sold to hotels, fitness studios, spas, medical practices, and longevity facilities across 50+ countries.

Ownership category

akta.pro rank

Product category

Wellness & Medical Equipment

NAICS

Industrial Design Services (54142), Research and Development in the Physical, Engineering, and Life Sciences (54171)

SIC

Surgical & Medical Instruments & Apparatus (3841), Services-Misc Health & Allied Services, Nec (8090)

akta.pro primary industry

Hot/Cold Contrast Therapy (Hot Tubs, Plunge Pools & Hydrotherapy) (HSADAKAD)

akta.pro secondary industries

Medical/Therapeutic Massage (Rehab/Pain Management) (HSALAEAO), Deep Tissue Massage (HSALAEAB)

Keywords

• Hydrojet massage equipment
• Red light therapy devices
• Medical wellness equipment
• Photobiomodulation systems
• Wellness and spa hardware

Headquarters

HQ city

Windhagen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Professional Wellness Equipment Sales: Sale of professional-grade Hydrojet massage systems and RedWave photobiomodulation devices to B2B customers including hotels, spas, fitness studios, and medical practices. Products are manufactured in Germany with premium quality positioning.
2. Medical Device Sales: Sale of medically certified Hydrojet products (Class IIa medical devices) including MedWave Touch, Medical Plus, and Medical models to physiotherapy, rehabilitation, and medical facilities.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

JK International GmbH (wellsystem) designs, manufactures, and sells premium dry hydrojet massage beds and red-light therapy devices for commercial and end-customer use. Its portfolio spans Class IIa medical-certified hydrojet models (Medical, Medical_Plus, MedWave_Touch), standard hydrojet massage models (Wave_Touch, Relax_Plus, HydroWave Bed), and photobiomodulation / red-light therapy systems (RedWave Plus, RedWave Plus Booth). Products are sold primarily to hotels, spas, fitness/longevity studios, and medical/physiotherapy practices, with a parallel premium home-use line.

Product overview

wellsystem (Jk International GmbH) offers a portfolio of wellness technology products consisting of two main product lines: hydrojet underwater massage beds and red light therapy devices. The hydrojet line includes the Wave_Touch premium model and MedWave_Touch/Medical/Medical_Plus medical-certified models (Class IIa), plus Relax_Plus and HydroWave Bed for home/fitness use. The red light therapy line features the RedWave Plus professional device (4,400+ LEDs) and RedWave Plus Booth combining red light with vibration training. Add-on modules include Spa_Complete for multisensory experiences and PC-Software for professional facility management. The product architecture follows a tiered approach from wellness consumer products through medical-grade therapeutic devices, with the Medwave_Touch, Medical Plus, and Medical classified as Class IIa medical devices while other products are general wellness/fitness devices. The portfolio serves markets including wellness spas, hotels, fitness studios, physiotherapy/rehabilitation, and longevity/biohacking.

Differentiator

Problem solved

Functional benefit

Products and services

• wellsystem Wave_Touch Premium dry hydrojet massage bed (platinum-coloured) for commercial use in hotels, spas, fitness/longevity studios, and medical practices. Provides contactless, customizable water-jet massage without requiring a massage therapist.
• wellsystem MedWave_Touch Class IIa medical-certified dry hydrojet massage bed for clinical use in medical, physiotherapy, rehab, and prevention settings. Delivers contactless hydrojet therapy for back pain and tension relief.
• wellsystem Medical Class IIa medical-certified dry hydrojet massage bed for medical, physiotherapy, and therapeutic practice use. Designed for clinical back-pain and tension relief applications.
• wellsystem Medical_Plus Enhanced Class IIa medical-certified hydrojet massage bed for medical and therapeutic practice use, expanding the Medical line with additional treatment options.
• wellsystem Relax_Plus Hydrojet massage bed for commercial use in hotels, spas, fitness studios, and other wellness operators.
• wellsystem HydroWave Bed Hydrojet massage bed sized and styled for premium home consumers, providing contactless water-jet massage for personal self-care and recovery.
• wellsystem RedWave Plus Full LED red light therapy device for commercial and home use, including German Spa Association 'Wellness & Spa Innovation Award 2024' recognition. Used for cellular regeneration, anti-inflammation, and skin health.
• wellsystem RedWave Plus Booth Booth-style red light therapy device combined with vibration function, intended for commercial spa and wellness operators.
• wellsystem RedWave Plus Matt Black Edition Premium Matt Black Edition of the RedWave Plus red light therapy device, awarded the German Design Award 2025. Targeted at design-conscious premium home and hospitality users.

Quantifiable outcome

• Up to 400% increase in blood circulation in treated areas
• +4 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Hale.Now (Miriam Zech)keyStrategic or Co-development PartnerHale.Now, founded by Miriam Zech, operates a longevity and holistic regeneration concept with 9 locations in Berlin. The company uses wellsystem RedWave technology for whole-body red light applications in their specialized sessions. Hale.Now is planning a nationwide expansion in 2026 with a new technology-focused brand.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Effegibi: Italian premium manufacturer of Turkish baths, saunas, steam rooms and hydrotherapy/spa equipment. Overlaps with wellsystem on hydrotherapy devices sold to luxury hospitality and wellness facilities in Europe.
• Gharieni Group: German premium manufacturer of spa, wellness, and medical treatment tables and equipment for hotels, spas, and clinics. Directly comparable as a German-engineered premium B2B wellness equipment supplier competing for the same hotel and spa capex budgets as wellsystem.
• Starpool: Italian manufacturer of high-end spa and hydrotherapy equipment (saunas, steam, salt rooms, snow rooms, wellness beds) for luxury hotels and wellness centers. Directly comparable in hydrotherapy/spa category targeting premium hospitality customers.
• Klafs GmbH: Leading German manufacturer of sauna, spa, and wellness equipment for hotels, fitness clubs, and private customers. Comparable as a German premium wellness-equipment maker with overlapping hotel and spa customers, similar field-sales model, and analogous Made-in-Germany positioning.
• HydroWorx: US-based manufacturer of hydrotherapy pools and underwater treadmill systems for sports, rehabilitation, and medical applications. Comparable as a maker of water-based therapy equipment sold to medical, rehab, and fitness customers, though more focused on aquatic exercise than massage.

Emerging players

• Human Touch: US-based manufacturer and retailer of massage chairs and massage equipment for home and professional use. Comparable as a manufacturer of massage therapy equipment, though focused on chair-based rather than hydrojet technology.
• Mito Red Light: Direct-to-consumer PBM/red light therapy device company selling LED panels and systems. Comparable in photobiomodulation technology targeting wellness, fitness, and longevity customers, though smaller and consumer-focused vs. wellsystem's professional-grade RedWave Booth systems.
• Richmar (Compass Health Brands): Manufacturer of clinical and physical therapy devices including ultrasound, electrotherapy, and massage modalities. Comparable as a physiotherapy equipment supplier competing in the medical/therapeutic massage category served by wellsystem's Medical and Medical_Plus lines.
• Joovv: Direct-to-consumer red light therapy brand selling LED panels for home and clinical use. Comparable as a PBM/photobiomodulation device competitor in the same underlying technology category, though focused on consumer panels rather than wellsystem's full-body professional booths.

Broad incumbents

• Chattanooga / DJO Global: Global medical device company (DJO) whose Chattanooga brand supplies physiotherapy, rehab, and pain management equipment. Comparable in the medical/therapeutic massage and Class IIa certified device category that wellsystem's Medical line competes against.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/gewo-cosmetics

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 Jk International GmbH