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Resources: U.S. Accreditation Bodies

U.S. Accreditation Bodies

Accreditation is a statement from an accreditation body – an independent third-party entity – declaring that specified requirements related to conformity assessment bodies have been met and that the accredited body is competent to perform certain functions.Put another way, accreditation is the process of evaluating the competence of a conformity assessment body.

This Directory provides information on the U.S.-based accreditation bodies that are members of major multilateral fora and arrangements such as the International Accreditation Forum (IAF) and the International Laboratory Accreditation Cooperation (ILAC).

IAF Members accredit certifiers of products, personnel, and management systems (e.g. ISO 9001, etc.). ILAC members accredit laboratories.

This Directory also provides links to the lists of conformity assessment bodies accredited byeach accreditation body.

check mark Learn more about U.S. participation in international accreditation fora and multilateral recognition arrangements.
check mark Learn more about conformity assessment and accreditation.

U.S. Members of the International Accreditation Forum (IAF)

ANSI National Accreditation Board (ANAB)

Mr. Reinaldo Figueiredo
Co-Interim Executive Director and Vice President, Conformity Assessment Strategy
1899 L St NW, Washington, DC 20036
United States of America
Tel: 1.202.331.3611

check mark Lists of ANAB’s accredited bodies.

This includes the following types of organizations accredited by ANAB, among others:

  • Product certification bodies (ISO/IEC 17065)
  • Greenhouse gas validation/verification bodies (ISO/IEC 14065)
  • Personnel certification bodies (ISO/IEC 17024)
  • Certificate programs (ANSI/ASTM 2659)
  • Management system certification bodies (ISO/IEC 17021-1)
  • Laboratories (ISO/IEC 17025)
  • Forensic inspection bodies (ISO/IEC 17020 or 17025)

American Association for Laboratory Accreditation (A2LA)

Mr. Robert Miller
General Manager
5202 President’s Ct. Suite 220,
Frederick, MD 21703
United States of America
Tel: 1.301.644.3248

check mark Searchable directory of A2LA Accredited Organizations

International Accreditation Service, Inc. (IAS)

Mr. Mohan Sabaratnam
Director, Quality & Accreditation
3060 Saturn Street, Suite 100,
Brea, CA 92821-1732
United States of America
Tel: 1.562.364.8201
Fax: 1.562.699.8031

check mark Searchable Accredited Organizations Directory

United Accreditation Foundation (UAF)

Mr. Parveen Sadana
400 North Center Drive
Suite 202
Norfolk, Virginia, 23502
United States of America
Tel: 1.757.228.5581

check mark Directory of Accredited Organizations


Mr. David Crucefix
Executive Director
1915 Highway 36 West #76
Roseville, MN 55113
United States of America
Telephone: 1.701.353.3353

check mark Directory of Accredited Bodies

U.S. Signatories to the International Laboratory Accreditation Cooperation (ILAC) Multilateral Recognition Arrangement (MRA)

American Association for Lab Accreditation (A2LA)

ANSI National Accreditation Board (ANAB)

International Accreditation Service, Inc (IAS)

National Voluntary Laboratory Accreditation Program (NVLAP)

Perry Johnson Laboratory Accreditation, Inc. (PJLA)

AIHA’s Laboratory Accreditation Programs, LLC

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