CMTC-OVM

What CMTC-OVM does

CMTC-OVM is a Netherlands-based, worldwide non-profit patient organization founded in 1997 that supports people living with rare vascular malformations — including Cutis Marmorata Telangiectatica Congenita (CMTC), Klippel-Trenaunay syndrome, Sturge-Weber syndrome, and related OVM conditions — along with their families and the medical professionals who treat them. The organization is recognized by the Dutch Tax Authorities as an Algemeen Nut Beogende Instelling (ANBI) and holds a Centraal Bureau Fondsenwerving (CBF) fundraising certificate, enabling tax-deductible donations. It operates entirely on unpaid volunteer labour with no paid staff, governed by a board led by Founder and President Lex van der Heijden.

Its core offerings are a multi-channel support ecosystem rather than discrete products: a multilingual Pedia knowledge base on the cmtc.nl website; information folders and brochures covering conditions, treatments, school and teacher guidance, and post-diagnosis psychological support; a recurring English-language webinar series (launched January 2021); annual international member conferences and family days held in the Netherlands; a browser- and dial-in-accessible online community platform launched in 2020; the VASCA magazine; and a network of trained Patient Advocates. The Patient Advocate training program was specifically subsidized by the Dutch government from July 2020 through December 2022. There is no proprietary technology stack in the conventional sense — the platform is a website-plus-online-community built with approximately 30 collaborators in 2020 — but the organization has engaged TREND Community to apply AI analysis to its closed Facebook group, producing Community Voice Reports intended for FDA Patient-Focused Drug Development submissions.

Revenue is generated through four streams: Dutch government subsidies (both general operating and project-specific), donations (one-time and recurring, tax-deductible under ANBI), membership fees (with full website access, conference participation, peer contact, and free personal medical advice; membership is reimbursable by some health insurers), and project sponsorship (e.g., Novartis funding for the GP brochure and Teachers Brochures/Docent project). The go-to-market is community-led: members are acquired through peer referral, medical professional recommendation, search/organic discovery on cmtc.nl, and presence at international rare-disease conferences including ISSVA, ICORD, EURORDIS, NORD, VBF, EADV, CORD, and VASCERN. Geographic reach spans at least 14 countries across Europe, North America, South America, and Asia.

Name

CMTC-OVM

Legal name

CMTC-OVM

Website

https://cmtc.nl

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

CMTC-OVM is a volunteer-run Dutch non-profit, founded in 1997, that supports patients with rare vascular malformations (CMTC, Klippel-Trenaunay, Sturge-Weber, and related OVM conditions), their families, and the medical professionals treating them through a global community, multilingual knowledge base, webinars, conferences, and advocacy programs.

Ownership category

akta.pro rank

Headquarters

HQ city

Silvolde

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Government Subsidy: The Dutch government provides subsidy to support many activities of the organization.
2. Donations: Donors can support the organization through one-time or recurring donations. The organization is recognized by the Dutch Tax Authorities as a General Benefit Organization (ANBI), making donations tax-deductible. Also holds the Central Bureau Fundraising (CBF) certificate.
3. Membership Fees: Members pay membership fees. Membership provides full access to the website, international Family Days and Conferences in the Netherlands, peer contact, and free personal medical advice. Membership may be reimbursed by health insurance.
4. Project Sponsorship: Sponsors support the organization's activities with products, services, and funding. Projects have their own separate financing beyond the government subsidy.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels9 records

Core offering

CMTC-OVM is a worldwide non-profit patient organization that provides free and member-supported services for people with rare vascular malformations (CMTC and OVM), their families, and healthcare professionals. Its core offering combines a multilingual online knowledge base, educational webinars, brochures, member conferences, family days, an online community, a peer-reviewed patient magazine, and an AI-assisted Community Voice Program, all delivered by unpaid volunteers since 1997.

Product overview

CMTC-OVM is a worldwide non-profit patient organization that provides a comprehensive ecosystem of support services for people with rare vascular malformations (such as CMTC, Klippel-Trenaunay, and other OVM conditions), their families, and healthcare professionals. The organization operates a unified platform comprising an online knowledge base (Pedia), educational webinars, information materials in multiple languages, member conferences, family days, and an online community. Key programs include patient advocacy training, genetic research initiatives, and collaboration with TREND Community for AI-powered community voice analysis. All services are delivered through a volunteer-driven organization active since 1997, with membership providing access to exclusive content including video materials and personal medical advice.

Differentiator

Problem solved

Functional benefit

Products and services

• Pedia Knowledge Base A multilingual online knowledge base that provides curated, accessible medical information about CMTC and other vascular malformations for patients, families, and healthcare professionals worldwide.
• Information Folders and Brochures Printed educational brochures and information folders covering CMTC and OVM conditions, distributed to newly diagnosed patients, families, and clinicians to support understanding of the conditions.
• Webinars Live and recorded expert-led educational webinars on CMTC, OVM, and related care topics, made available to members and the wider community.
• Member Conferences Annual in-person conferences that bring together patients, families, clinicians, and researchers to share knowledge, present updates, and build community around CMTC and OVM.
• Family Days Family-oriented in-person gatherings designed to reduce isolation, support affected families, and create peer connections among CMTC and OVM patients and their loved ones.
• Online Community Platform A global online community platform that enables patients, families, and supporters affected by CMTC and OVM to connect, share experiences, and access peer support across geographies.
• Community Voice Program An AI/ML-assisted program that collects and analyzes unstructured patient-experience feedback from the CMTC and OVM community, producing structured insights for advocacy, research, and partner engagement.
• Patient Advocacy Program Formal patient advocacy representing the CMTC and OVM community in healthcare policy, clinical guideline development, and European Reference Network (VASCERN) activities.
• Genetic Research Program Program supporting genetic research into the causes and inheritance patterns of CMTC and OVM, including collaboration with academic and clinical research partners.
• VASCA Magazine A peer-reviewed patient magazine published for members and supporters, featuring medical updates, community stories, and research summaries related to CMTC and OVM.
• Newsletters Regular newsletters delivered to members and supporters providing updates on organizational activities, medical developments, and community news.
• Video Interviews Recorded video interviews featuring patients, families, and clinicians, shared online to communicate lived experience and expert perspectives on CMTC and OVM.

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

18 partnerships are on record, tiered core and minor.

• European Reference Networks (ERN)coreStrategic or Co-development PartnerCMTC-OVM is affiliated with European Reference Networks, which are virtual networks of healthcare providers across Europe working on rare diseases. The organization participates as a European Patient Advocacy Group (ePAG), contributing to ERN Skin and VASCA working groups.
• EURORDIScoreStrategic or Co-development PartnerCMTC-OVM participates in EURORDIS activities and conferences as a member organization representing rare disease patients, contributing to pan-European rare disease advocacy and policy.
• VASCERN (European Reference Network for Rare Multisystemic Vascular Diseases)coreStrategic or Co-development PartnerCMTC-OVM collaborates with VASCERN, the European Reference Network for rare multisystemic vascular diseases. The organization participates in VASCA (Vascular Anomalies) working groups and contributes to patient pathways and guidelines.
• ISSVA (International Society for the Study of Vascular Anomalies)coreStrategic or Co-development PartnerCMTC-OVM participates in ISSVA conferences and activities, contributing to the scientific and medical understanding of vascular anomalies.
• ICORD (International Conference on Rare Diseases)coreStrategic or Co-development PartnerCMTC-OVM attends ICORD conferences, contributing to international collaboration on rare disease policy, research, and patient advocacy.
• NORD (National Organization for Rare Disorders, USA)minorStrategic or Co-development PartnerCMTC-OVM collaborates with NORD, the US-based rare disease organization, through conference participation and information sharing.
• Genetic AllianceminorStrategic or Co-development PartnerCMTC-OVM collaborates with Genetic Alliance, a US-based organization working to advance the health of people with genetic conditions, through conference participation and information sharing.
• Global Skin FoundationminorStrategic or Co-development PartnerCMTC-OVM collaborates with Global Skin Foundation through conference participation and shared advocacy efforts for skin disease patients.
• VBF (Vascular Birthmarks Foundation)minorStrategic or Co-development PartnerCMTC-OVM collaborates with the Vascular Birthmarks Foundation through conference participation and shared patient advocacy activities.
• CORD (Conference on Rare Diseases)minorStrategic or Co-development PartnerCMTC-OVM participates in CORD conferences focused on rare diseases, contributing to European rare disease advocacy efforts.
• EADV (European Academy of Dermatology and Venereology)minorStrategic or Co-development PartnerCMTC-OVM participates in EADV conferences to engage with dermatology professionals on topics related to vascular malformations.
• Naevus GlobalminorStrategic or Co-development PartnerCMTC-OVM collaborated with Naevus Global, the worldwide organization for people with giant congenital melanocytic nevi, to develop three parent support brochures in 6 languages (German, English, French, Italian, Dutch, and Spanish) for pre-school, primary school, and secondary school phases.
• Ronald McDonald Huizen (Ronald McDonald Houses)minorGTM or Marketing PartnerCMTC-OVM offers members access to Ronald McDonald vacation homes as a wellness and family reconnection benefit, allowing families to unwind together.
• TREND CommunityminorStrategic or Co-development PartnerCMTC-OVM partnered with TREND Community, a digital health technology company, to analyze conversations in their closed Facebook group using artificial intelligence to create a Community Voice Report quantifying disease burden, disease management strategies, and unmet needs for the FDA's Patient-Focused Drug Development guidelines. TREND does not receive personally identifiable information.
• Prof. Dr. Miikka Vikkula (Belgium)coreStrategic or Co-development PartnerProf. Dr. Miikka Vikkula leads genetic research into vascular malformations at the European level, particularly on the PIK3CA gene. This research supersedes CMTC-OVM's own genetic research and provides critical scientific backing for the organization's work.
• Prof. Dr. Suzanne PasmanscoreStrategic or Co-development PartnerProf. Dr. Suzanne Pasmans is a medical advisor to CMTC-OVM and collaborated on the development of the GP brochure about CMTC, in partnership with the VSOP (Dutch Patient Alliance for Rare Diseases) and NHG (Dutch College of General Practitioners).
• VSOP (Vereniging Samenwerkende Ouder- en Patiëntenorganisaties)minorStrategic or Co-development PartnerCMTC-OVM collaborated with VSOP (Dutch Patient Alliance for Rare Diseases) and NHG (Dutch College of General Practitioners) on developing a GP brochure about CMTC in multiple languages.
• NHG (Nederlands Huisartsen Genootschap)minorStrategic or Co-development PartnerCMTC-OVM collaborated with NHG (Dutch College of General Practitioners) and VSOP on developing a GP brochure about CMTC in multiple languages.

Scale indicators2 records

Recent moves1 record

Expansion highlights6 records

Broad incumbents

• Genetic Alliance: US-based alliance advancing the health of people with genetic conditions; CMTC-OVM collaborates through conferences and information sharing. A broader incumbent serving a wider set of rare-genetic communities.
• Global Skin Foundation: International alliance of skin-disease patient organizations; CMTC-OVM participates in its conferences and shared advocacy. Functions as a broader-incumbent umbrella with overlapping patient communities.

Others

• Children's Tumor Foundation: US-based rare-disease organization focused on neurofibromatosis. Operates a comparable volunteer-plus-staff hybrid model and funds research, but addresses a different condition; useful adjacent benchmark for scale and funding.
• VASCERN (European Reference Network for Rare Multisystemic Vascular Diseases): European Reference Network for rare vascular diseases in which CMTC-OVM is a patient-advocacy participant. Not a patient organization per se, but the closest institutional counterpart coordinating the same clinical and research community.

Direct peers

• NORD (National Organization for Rare Disorders): US umbrella organization for rare-disease patient groups; CMTC-OVM is a listed member/allied organization. Closest structural analog as a rare-disease advocacy federation.
• EURORDIS – Rare Diseases Europe: Pan-European federation of rare-disease patient organizations; CMTC-OVM is an active participant in EURORDIS conferences and policy work. Directly comparable in mission and advocacy model.
• Vascular Birthmarks Foundation (VBF): US-based patient advocacy organization for vascular birthmarks and malformations, including many of the same conditions (CMTC, Klippel-Trenaunay, Sturge-Weber). Directly comparable mission, model, and patient population.

Emerging players

• Naevus Global: Worldwide organization for people with giant congenital melanocytic nevi; CMTC-OVM has co-developed multilingual parent brochures with Naevus Global. Directly comparable as a small volunteer-led rare-skin-condition patient org.
• Sturge-Weber Foundation: Single-condition patient organization for Sturge-Weber Syndrome, one of the OVM conditions covered by CMTC-OVM. Comparable volunteer-driven model but narrower scope.
• Klippel-Trenaunay Support Group (K-T Support Group): Patient-led support organization for Klippel-Trenaunay Syndrome, another OVM condition within CMTC-OVM's scope. Similar peer-support and information-sharing model.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/CMTCOVM
• YouTubeyoutube.com/channel/UCh6lHgOkcmkY9o6xJXs6lDQ
• Facebookfacebook.com/CmtcOvmNL
• LinkedInlinkedin.com/company/cmtc-ovm
• Instagraminstagram.com/cmtcovm

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 CMTC-OVM