SEDN

What SEDN does

SEDN (Stichting Eerstelijns Diagnostiek Nederland) is a Dutch non-profit foundation that operates the largest independent network of first-line diagnostic imaging centers in the Northern Netherlands. Founded in 2010 and headquartered in Groningen, the organization delivers five core services — Echografie (ultrasound), Röntgenfoto (X-ray), Botdichtheidsmeting/DEXA (bone density measurement), Echogeleide infiltraties (ultrasound-guided injections), and Barbotage (calcium deposit treatment) — across five sites in Groningen, Hoogezand-Sappemeer, Drachten, Veendam, and Delfzijl. The clinical team comprises nine radiologists (led by General Director Edwin van der Linden and Medical Director Dick Bakker), two physician assistants, and a roster of radiographers, echo technologists, DEXA technicians, and administrative staff, all operating under ISO 9001:2015 quality certification and AVG/GDPR-compliant ICT systems with dual-site data archiving.

The company operates a B2B2C model in which general practitioners (huisartsen) refer patients electronically via the ZorgDomein platform or by phone to one of SEDN's locations; appointments are then scheduled and examinations performed, with results delivered digitally to the referring GP within two working days, supported by a direct radiologist hotline for intercollegiate consultation (088-744 3001) and abnormal-finding escalation. Revenue is generated through professional-service fees for diagnostic imaging reimbursed by Dutch health insurers under standard tariff structures; SEDN holds contracts with all 40+ Dutch health insurers and explicitly prices below hospital tariffs, which lowers patient deductible (eigen risico) exposure. Patient data and images are exchanged securely with Dutch hospitals via Alphatron Medical's TWIIN (XDM) national communication system. Technology is conventional rather than proprietary — modern digital X-ray, DEXA, and ultrasound equipment operated at the lowest feasible radiation doses under service contracts — with all imaging interpretation performed manually by subspecialist radiologists; no AI/ML capabilities are deployed.

Name

SEDN

Legal name

Stichting Eerstelijns Diagnostiek Nederland

Website

https://sedn.nl

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

SEDN (Stichting Eerstelijns Diagnostiek Nederland) is a Dutch non-profit foundation operating the largest independent network of first-line diagnostic imaging centers in the Northern Netherlands, serving GP-referred patients across five locations with ultrasound, X-ray, DEXA bone density, and ultrasound-guided injection services.

Ownership category

akta.pro rank

Headquarters

HQ city

Groningen

HQ country

Netherlands

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Medical Diagnostic Services: SEDN provides first-line medical imaging diagnostics (ultrasound, X-ray, bone density measurements, echo-guided infiltrations, barbotage) to patients referred by general practitioners. Services are covered by Dutch health insurance, with SEDN having contracts with all insurers in the Netherlands. Rates are lower than hospital rates.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

SEDN provides first-line medical diagnostic imaging services — ultrasound (echografie), X-ray (röntgenfoto), bone density measurement (DEXA), ultrasound-guided infiltrations, and barbotage — to patients referred by general practitioners in the Northern Netherlands. Services are delivered across five diagnostic centers by BIG-registered radiologists, physician assistants, and certified radiographers, with results returned to the referring GP within two working days. All services are covered by contracts with every Dutch health insurer at tariffs lower than hospital rates.

Product overview

SEDN (Stichting Eerstelijns Diagnostiek Nederland) is a primary care diagnostic imaging provider offering five core medical imaging services: Echografie (ultrasound), Röntgenfoto (X-ray), Botdichtheidsmeting/DEXA (bone density measurement), Echogeleide Infiltraties (ultrasound-guided injections), and Barbotage (calcium deposit treatment). The company operates as a unified diagnostic service rather than a platform architecture, with all services available across five locations in the northern Netherlands region (Groningen, Hoogezand-Sappemeer, Drachten, Veendam, and Delfzijl). Services are requested by general practitioners through ZorgDomein or direct referral, with results delivered digitally within two business days. All imaging is performed by experienced radiographers, physician assistants, and radiologists with subspecializations.

Differentiator

Problem solved

Functional benefit

Products and services

• Echografie (Ultrasound) Diagnostic ultrasound imaging service that uses high-frequency sound waves to produce detailed images of internal soft tissues, organs, muscles, and blood vessels. Applied for various clinical assessments including abdominal complaints, joint problems, and swelling. Available to patients referred by general practitioners across the Northern Netherlands.
• Röntgenfoto (X-ray) Medical X-ray imaging service used to diagnose bone fractures, joint problems, pneumonia, and chest cavity conditions. Uses modern digital radiography equipment with the lowest possible radiation dose. Performed for GP-referred patients across SEDN's Northern Netherlands locations.
• Botdichtheidsmeting (DEXA Bone Density Measurement) Bone density measurement service using dual-energy X-ray absorptiometry (DEXA) to assess bone mineral content and diagnose osteoporosis. Involves low-dose X-ray imaging of hips and lower spine. Performed for GP-referred patients.
• Echogeleide Infiltraties (Ultrasound-Guided Injections) Therapeutic treatment combining Lidocaine and Kenacort injected directly into painful or inflamed areas under real-time ultrasound guidance. Used for musculoskeletal pain conditions including bursitis, tendonitis, and joint abnormalities. Performed for GP-referred patients.
• Barbotage Needle-based treatment procedure for dissolving calcium deposits in tendons (particularly shoulder tendons) under ultrasound guidance. Combined with ultrasound-guided infiltration using Lidocaine and Kenacort for inflammation reduction. Performed for GP-referred patients.

Quantifiable outcome

• Wait times shorter than hospitals
• +2 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• ZorgDomeincoreTechnology or IntegrationDigital referral platform enabling GPs to electronically submit diagnostic imaging requests to SEDN. Streamlines the referral process for referring physicians.
• Alphatron Medical (TWIIN/XDM)coreTechnology or IntegrationNational communication system (TWIIN/XDM) for secure digital image and report exchange with Dutch hospitals. Enables efficient and safe transfer of medical imaging.
• SentixminorStrategic or Co-development PartnerCollaboration for radiation protection and safety services. Sentix provides expertise in ensuring radiation safety compliance for X-ray equipment.
• All Dutch Health InsurerscoreChannel Partner/ Reseller/ DistributorContracts with all health insurers in the Netherlands including: CZ, Menzis, VGZ, Achmea, Zilveren Kruis, ONVZ, De Friesland, HEMA, and 40+ others. Ensures patient coverage for diagnostic services.

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Bergman Clinics: Bergman Clinics is a larger Dutch private-clinics operator with a broad specialty portfolio that includes diagnostic imaging; it is comparable as a Dutch outpatient imaging provider but operates at materially greater scale and a wider service mix than SEDN.
• RadNet: RadNet is a large US outpatient diagnostic imaging chain; while US-based, it is comparable to SEDN as a multi-site outpatient imaging operator with a primary-care referral base, illustrating scale economics that SEDN could pursue in Europe.
• Eurofins Clinical Diagnostics: Eurofins Clinical Diagnostics is the diagnostics arm of Eurofins, offering outpatient diagnostic testing and imaging-adjacent services across Europe; comparable to SEDN as a diagnostics services provider serving outpatient and primary-care demand, albeit at global scale.
• SYNLAB: SYNLAB is one of Europe's largest medical diagnostics providers, combining imaging and laboratory services for outpatient and primary-care referrals — relevant as a broad incumbent in the same diagnostic-services category as SEDN.
• Unilabs: Unilabs is a European clinical diagnostics and imaging operator with a substantial Dutch footprint; comparable to SEDN in offering outpatient diagnostic imaging but at pan-European scale and including laboratory diagnostics beyond SEDN's scope.

Direct peers

• DC Klinieken: DC Klinieken is a Dutch chain of independent outpatient clinics offering diagnostic imaging and a wider specialty mix — overlapping with SEDN on outpatient imaging but operating as a broader independent-clinics platform.
• Saltro: Saltro is a Dutch primary-care diagnostics organisation offering imaging and laboratory diagnostics to GP-referred patients — the same B2B2C model, payer-funded structure, and primary-care positioning as SEDN, but operating in the Utrecht/Randstad region.
• SHL-Groep: SHL-Groep is a Dutch primary-care diagnostics provider delivering laboratory and imaging services to GP referrals — directly comparable to SEDN's first-line diagnostic model, with comparable GTM via GP networks and insurer contracts.
• Diagnostiek voor U: Diagnostiek voor U is an Eindhoven-based first-line diagnostic centre providing imaging and lab services referred by GPs, making it a direct Dutch peer with the same outpatient, non-hospital, primary-care referral model.

Regional players

• Medlon: Medlon is a Swedish primary-care diagnostics provider serving GP-referred patients with imaging and laboratory services — directly comparable to SEDN's model in a different Northern European market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SEDN1
• LinkedInlinkedin.com/company/sedn
• Instagraminstagram.com/sedn_diagnostiek/?hl=nl

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 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 SEDN