Nederlandse Obesitas Kliniek

What Nederlandse Obesitas Kliniek does

Nederlandse Obesitas Kliniek (NOK) is a privately held Dutch healthcare company operating the largest dedicated obesity clinic network in the Netherlands, with 11 locations and 30+ years of clinical experience. Founded in 1993/1994, NOK provides bariatric surgery — including Gastric Bypass, Gastric Sleeve, SADI, and Gastric Band procedures — through partner hospitals, wrapped in a proprietary multidisciplinary treatment program covering medical screening, psychological support, dietary guidance, movement therapy, and long-term aftercare (1.5 years of structured follow-up plus 4 years of aftercare). The company has performed over 50,000 treatments and reports an average 32% weight loss in the first year post-treatment.

NOK's business model is primarily reimbursement-driven: treatments meeting Dutch clinical criteria (BMI 40+, or BMI 35+ with comorbidities such as treated diabetes, hypertension, documented arthritis, or sleep apnea) are covered under the Dutch basic health insurance (zorgverzekering). A separate self-pay rate schedule (Passantentarieven NOK 2025-2026) covers patients who are uninsured or seek treatment privately. An affiliated sub-brand, NOK Clinics, extends the offering to non-surgical, medication-based weight management. Patient acquisition combines direct digital marketing (website, BMI calculator, Quickscan self-assessment tool, online registration, Instagram) with a referral channel from general practitioners and medical specialists, supported by free in-person and online information sessions (voorlichting) at all 11 sites.

In August 2025, private equity firm Vendis Capital invested in NOK to support growth and international expansion. The company is headquartered administratively in Zeist (postal address) and Amsterdam, operates in compliance with Dutch GDPR (AVG) and the Wet kwaliteit, klachten en geschillen zorg, and uses ZorgMail for secure communication of patient information. The current employee count is in the 51-100 range.

Name

Nederlandse Obesitas Kliniek

Legal name

Nederlandse Obesitas Kliniek

Website

https://obesitaskliniek.nl

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

51–100 employees

Short description

Nederlandse Obesitas Kliniek is the largest dedicated obesity clinic operator in the Netherlands, running 11 sites and 30+ years of bariatric surgery plus multidisciplinary lifestyle programs reimbursed mainly via Dutch basic health insurance.

Ownership category

akta.pro rank

Product category

Bariatric Surgery Services

NAICS

Freestanding Ambulatory Surgical and Emergency Centers (621493), Diet and Weight Reducing Centers (812191)

SIC

Services-Offices & Clinics Of Doctors Of Medicine (8011), Services-Specialty Outpatient Facilities, Nec (8093)

akta.pro primary industry

Obesity Medicine & Weight Management (HLAKADAL)

akta.pro secondary industry

Weight Loss Coaching (Non-Clinical) (HSADAFAB)

Keywords

• Bariatric surgery services
• Obesity treatment clinic
• Weight loss surgery
• Multidisciplinary obesity care
• Gastric bypass procedures

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Offices12 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Healthcare Insurance Reimbursement: The primary revenue stream comes from Dutch health insurance reimbursement (zorgverzekering). Bariatric surgeries are covered under basic health insurance for patients meeting medical criteria (BMI 40+, or BMI 35+ with comorbidities). This is the standard payment mechanism for insured Dutch patients.
2. Private Patient Rates (Passantentarieven): For patients not covered by insurance or seeking treatment as private patients, NOK offers self-pay pricing. The 'Passantentarieven NOK – 2025-2026' document outlines these rates.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Nederlandse Obesitas Kliniek (NOK) delivers integrated obesity treatment combining bariatric surgery (gastric bypass, gastric sleeve, SADI, gastric band) with a multidisciplinary pre- and post-operative program of psychological, dietary, and movement support. Treatment is delivered across 11 clinic locations in the Netherlands, with surgical procedures performed at partner hospitals, and is primarily reimbursed through Dutch basic health insurance. A non-surgical medication-based weight management option is offered via the affiliated NOK Clinics brand.

Product overview

Nederlandse Obesitas Kliniek (NOK) is the largest obesity clinic in the Netherlands with over 30 years of experience, operating 11 clinics across the country. The company offers a comprehensive weight loss solution combining bariatric surgery (Gastric Bypass, Gastric Sleeve, SADI, Gastric Band) with an integrated treatment program including medical screening, dietary preparation, psychological support, and long-term aftercare. The core offering includes surgical procedures performed in partner hospitals, supplemented by a multidisciplinary treatment team (physician, psychologist, dietitian, movement specialist, surgeon, internist), the BMI Calculator and Quickscan online tools for eligibility assessment, and free information sessions. An additional medication-based treatment option is available through the affiliated NOK Clinics brand for non-surgical weight management.

Differentiator

Problem solved

Functional benefit

Brands

• NOK Clinics: Treatment with medication for weight loss

Products and services

• Bariatric Surgery (Bariatrische Chirurgie) Surgical weight loss procedures (Gastric Bypass, Gastric Sleeve, SADI, Gastric Band) for adult patients with obesity, performed at partner Dutch hospitals under NOK's multidisciplinary care pathway.
• Multidisciplinary Obesity Treatment Program (Behandelprogramma) Integrated obesity treatment program comprising screening, pre-operative preparation (group sessions), surgical coordination, a structured lifestyle change phase, and multi-year aftercare, delivered by NOK's multidisciplinary team of physicians, psychologists, dietitians, movement specialists, surgeons, and internists.
• Medication-Based Weight Loss Treatment (Behandeling met Medicatie via NOK Clinics) Non-surgical weight loss option delivered through the NOK Clinics affiliate, providing medication-based weight management as an alternative or complement to bariatric surgery for patients seeking treatment without an operation.

Quantifiable outcome

• 32% weight loss in first year
• +4 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature4 records

Partnerships

One partnership is on record.

• Partner HospitalscoreStrategic or Co-development PartnerNOK partners with leading Dutch hospitals for the surgical procedures. Surgeons at these partner hospitals perform the actual bariatric operations while NOK handles pre-operative preparation, post-operative care, and the overall treatment program. The organization states 'We werken samen met de beste ziekenhuizen' (We work together with the best hospitals).

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Ramsay Health Care: Global private hospital group operating across Europe (including the Nordics, France, Nordics, and UK) with bariatric and weight-management services. Comparable as a large-scale private healthcare platform with surgical obesity offerings and established referral networks.
• Nuffield Health: UK not-for-profit private healthcare provider with hospitals offering bariatric surgery alongside broader wellness and fitness services. Comparable overlap with NOK's combination of surgical weight-loss intervention and lifestyle/aftercare programming.
• Spire Healthcare: UK-listed private hospital operator (38 hospitals) offering bariatric surgery among a wide specialty portfolio. Comparable as a broad incumbent providing bariatric procedures with referral and insurance pathways in a regulated private healthcare system.

Regional players

• Asklepios Kliniken: Germany's largest private hospital group operating ~170 facilities including bariatric surgery programs. Comparable as a regional private clinic/hospital operator in an adjacent European market with insurance-reimbursed bariatric services and multidisciplinary surgical pathways.
• Helios Kliniken: Major German private hospital network (part of Fresenius) with bariatric surgery and obesity programs across Germany and Spain. Comparable as a regional peer running large-scale private surgical care in Europe with structured pre-/post-operative support.
• Quirónsalud: Spain's largest private hospital network offering bariatric surgery and obesity treatment programs. Comparable as a regional player operating private specialty surgical care in another European healthcare market, serving medically-eligible patient populations.

Direct peers

• Transform Hospital Group: UK-focused private hospital group historically known for bariatric/weight-loss surgery with multidisciplinary pre- and post-operative programs. Directly comparable to NOK in core service line (bariatric surgery + lifestyle support), patient demographic, and bundled aftercare offering.
• Bergman Clinics: Largest Dutch private clinic network offering planned medical specialist care including bariatric surgery across multiple locations. Highly comparable to NOK in terms of Dutch geography, multi-clinic specialty-care model, hospital-partnership surgical delivery, and insurance-reimbursed procedures.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/nederlandseobesitaskliniek
• Xx.com/obesitasnl
• Facebookfacebook.com/obesitaskliniek

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Nederlandse Obesitas Kliniek