American Association for Laboratory Accreditation
- Established in 1978 as a non-profit, public service, membership society, A2LA is dedicated to the formal recognition of competent testing and calibration laboratories, inspection bodies, proficiency testing providers and reference material producers.
- http://www.a2la.org/

African Committee of Metrology
- Promotes and disseminates relevant information to provide connections with the continent's national laboratories, and industrial bodies. Includes meetings, related links, membership application and organizational structure.
- http://www.acmetrology.com/

European Reference Materials
- Joint collaboration to combined forces in producing new standards. Describes evaluation procedures, guidelines, six industrial categories, with catalog for subcategories spanning the sciences. Contacts with secretariat at Institute for Reference Materials
- http://www.erm-crm.org/

Japan Analytical Instruments Manufacturers Association
- JAIMA represents Japan's measuremnt industry with research projects and meetings. Includes directory and technical guidance.
- http://www.jaima.or.jp/english/index-e.php

Association for Coordinate Metrology Canada
- Primarily concerned with dimensional measuring machines, CMM. Archives of meetings, workshops, newsletters, related links, membership and officers' details at Institute for National Measurement Standards, Ottawa.
- http://www.acmc-canada.ca/

Inter-American Metrology System
- Agreement among national metrology organizations, whose goal is to promote international and regional cooperation in the Americas for scientific, industrial and legal metrology. Includes overview, organizational structure and meetings.
- http://www.sim-metrologia.org.br/

International Confederation for Thermal Analysis and Calorimetry
- ICTAC organises congresses to exchange information, and coordinating efforts towards standardization and nomenclature. Lists upcoming events, membership details and contacts in Toronto, Canada.
- http://www.ictac.org/

Croatian Metrology Society
- Voluntary organization concerned with metrology and related technical regulations, offering meetings, education and publishing their journal from Zagreb.
- http://www.hmd.hr/english/

NCSL International
- Concerned with standards, laboratory accreditation, and measurement technology. Includes news, meetings, membership, publications offered, information about current developments and training in Boulder, Colorado.
- http://www.ncsli.org/

WELMEC
- Organization of 28 European countries cooperating in legal metrology to establish a harmonized and consistent approach. Details of working groups, notifies bodies, training, events calendar, members login and details of member states.
- http://www.welmec.org/

Asia-Pacific Legal Metrology Forum
- Objectives, events, news and meetings of fourteen member economies. Contacts for the secretariat in Tsukuba, Japan.
- http://www.aplmf.org/

Metrology Society of Australia
- For people interested or involved in the science and practice of measurement. Includes details of biennial conference, members, technical groups, list of journal contents, and contacts in Newton, South Australia.
- http://www.metrology.asn.au/