American Registry for Diagnostic Medical Sonography

What American Registry for Diagnostic Medical Sonography does

ARDMS (American Registry for Diagnostic Medical Sonography), founded in 1975 and headquartered in Rockville, Maryland, is a nonprofit certification body that administers professional credentials for diagnostic medical sonographers. It offers four primary registered credentials — RDMS (Registered Diagnostic Medical Sonographer), RDCS (Registered Diagnostic Cardiac Sonographer), RVT (Registered Vascular Technologist), and RMSKS (Registered Musculoskeletal Sonographer) — spanning cardiac, general/maternal fetal, vascular, and musculoskeletal ultrasound specialties, alongside related physician-level credentials (e.g., RPVI, RMSK). The organization serves 117,000+ registrants and supports a broader community of 150,000+ certificants across the Inteleos umbrella, with certificants caring for an estimated 1.4 million patients daily.

ARDMS operates within the Inteleos governance structure, which also manages APCA (Alliance for Physician Certification & Advancement) and the POCUS (Point-of-Care Ultrasound) Certification Academy. Its technology stack includes the SKILLS Platform for ongoing Maintenance of Certification, the CME Bank for continuing education credit tracking, the Credivera digital wallet for verifiable digital credentials, and a Vantari VR partnership for virtual reality-based training. Exam content is developed by a volunteer network of practicing sonographers acting as subject matter experts, supporting a community-led model.

Revenue is generated primarily through one-time certification examination fees, recurring annual renewal fees from the 117,000+ registrant base, and CME-related professional services. Pricing is not publicly disclosed. Distribution is delivered via a self-serve online portal (myardms.ardms.org), global examination/testing center partners, and inside sales customer service. ARDMS holds ANAB and ISO accreditation, enabling recognition of its credentials across 21 countries, and pursues global expansion through Inteleos Africa and other international programs.

Name

American Registry for Diagnostic Medical Sonography

Legal name

The American Registry for Diagnostic Medical Sonography

Website

https://ardms.org

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

101–250 employees

Short description

ARDMS is a 50+ year nonprofit certification body that awards credentials (RDMS, RDCS, RVT, RMSKS) to diagnostic medical sonographers and ultrasound professionals, serving 117,000+ registrants globally under the Inteleos umbrella.

Ownership category

akta.pro rank

Headquarters

HQ city

Rockville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Certification Examination Fees: Fees collected from candidates taking ARDMS certification exams for RDCS, RDMS, RMSKS, and RVT credentials across 11 specialties.
2. Annual Renewal Fees: Recurring annual fees charged to 117,000+ registrants for maintenance of certification, including attestation and knowledge confirmation.
3. Continuing Medical Education (CME): CME programs and accepted sponsors framework providing education credits that support ongoing professional development requirements.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

ARDMS develops and administers professional certification examinations for diagnostic medical sonography, awarding four primary credentials — RDCS (cardiac), RDMS (general/maternal-fetal), RMSKS (musculoskeletal), and RVT (vascular) — across 11 specialties. These certifications are maintained through a digital ecosystem including the SKILLS Platform, CME Bank, annual attestation, and digital wallet credentialing, with global recognition across 21 countries via ANAB and ISO accreditation.

Product overview

ARDMS operates as a certification body within the Inteleos organization, offering a portfolio of professional certifications for sonographers. The core offerings include four primary credentials (RDCS, RDMS, RMSKS, RVT) spanning cardiac, general/maternal fetal, musculoskeletal, and vascular sonography specialties. These certifications are supported by a maintenance ecosystem comprising the SKILLS Platform for ongoing assessment, CME Bank for continuing education credits, and Knowledge Confirmation modules. ARDMS also provides examination preparation through Practice Tests, a Resource Hub for certification documentation, and a Learning Hub for professional development. Innovation initiatives include the Credivera Digital Wallet for verifiable credentialing and Vantari VR for virtual reality-based training. The organization serves 117,000+ registrants and maintains international recognition through ANAB and ISO-accreditation.

Differentiator

Problem solved

Functional benefit

Products and services

• RDCS (Registered Diagnostic Cardiac Sonographer) A professional certification credential demonstrating proficiency in echocardiography and cardiovascular imaging, awarded to cardiac sonographers.
• RDMS (Registered Diagnostic Medical Sonographer) The flagship ARDMS credential covering general sonography and maternal fetal health, representing the gold standard in diagnostic medical sonography.
• RMSKS (Registered Musculoskeletal Sonographer) A certification credential for sonographers specializing in musculoskeletal ultrasound imaging.
• RVT (Registered Vascular Technologist) A certification credential for technologists specializing in vascular ultrasound and interpretation.
• SKILLS Platform An online platform for maintaining certification through ongoing skills assessment and knowledge confirmation for ARDMS-certified professionals.
• CME Bank A repository of continuing medical education (CME) credits and resources used by certified professionals to maintain their ARDMS credentials.
• Credivera Digital Wallet A digital wallet credentialing technology enabling ARDMS certificants to store, share, and verify their qualifications digitally with employers and institutions.
• Vantari VR Training Platform A virtual reality training platform for ultrasound skill development and medical education, supporting ARDMS exam preparation and continuing education.

Quantifiable outcome

• 1.4 million patients cared for daily by ARDMS Certificants
• +1 more outcomes

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• CrediveracoreTechnology or IntegrationCredivera provides digital wallet credentialing technology, enabling ARDMS certificants to store, share, and verify their credentials digitally across employers and institutions.
• ANAB (ANSI National Accreditation Board)coreStrategic or Co-development PartnerANAB provides ISO accreditation for ARDMS certifications, ensuring global recognition and compliance with international standards.
• ISO (International Organization for Standardization)coreStrategic or Co-development PartnerISO standards accreditation supports international recognition of ARDMS certifications across 21 countries.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Others

• Credly (Pearson): Digital credentialing platform owned by Pearson that powers digital badges and verifiable credentials across healthcare and other industries. Functions as a technology partner to ARDMS (via the Credivera relationship) and as an enabler of competing certification programs.

Direct peers

• American Registry of Radiologic Technologists (ARRT): Largest US credentialing body for radiologic technologists, operating the same certification/renewal model as ARDMS across an adjacent imaging discipline. Directly comparable in scale, non-profit structure, and reliance on accredited exams.
• Nuclear Medicine Technology Certification Board (NMTCB): Non-profit certifying body for nuclear medicine technologists, structurally analogous to ARDMS with exam-based credentialing and maintenance requirements in another medical imaging specialty.
• Cardiovascular Credentialing International (CCI): Independent non-profit that credentials cardiovascular technologists, including echocardiography — directly overlapping with ARDMS's RDCS credential. Competes head-to-head for cardiac sonography certificants.
• American Registry of Magnetic Resonance Imaging Technologists (ARMRIT): Specialized MRI technologist certification body. Smaller in scale than ARDMS but follows the same non-profit, exam-driven credentialing model in a related diagnostic imaging discipline.

Broad incumbents

• National Board for Respiratory Care (NBRC): Established non-profit credentialing body for respiratory therapists with a comparable exam-and-renewal business model. Similar in governance structure, scale, and recurring-renewal economics to ARDMS.
• American Board of Internal Medicine (ABIM): Large, established physician certification body that issues credentials relevant to ARDMS's RDCS-adjacent echocardiography market. Much broader scope, but a comparable MOC-driven, accredited credentialing model.

Emerging players

• Inteleos APCA (Alliance for Physician Certification & Advancement): Sister organization within Inteleos offering physician-facing ultrasound credentials such as RPVI. Closely related to ARDMS through shared parent governance and overlapping ultrasound content.
• POCUS Certification Academy (Inteleos): Point-of-care ultrasound certification body within Inteleos, targeting the rapidly growing POCUS segment. Represents both an internal growth vector and a potential share-of-wallet competitor to ARDMS.
• Board of Registered Polysomnographic Technologists (BRPT): Smaller non-profit credentialing body for sleep technologists. Operates the same exam-and-maintenance model as ARDMS in a different allied health niche, useful as a size and economics benchmark.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/TheARDMS
• LinkedInlinkedin.com/company/ardms
• Xx.com/TheARDMS

Compliance2 records

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 American Registry for Diagnostic Medical Sonography