Electronics/Electrical Engineering
Institute of Electrical and Electronics Engineers (IEEE) - leading developer of industry standards that is recognized globally
 
International Organization for Standardization (ISO) - coordinates national standards institutes in 162 countries and has developed over 17500 industrial and commercial standards
International Telecommunication Union (ITU) - sets global standards for the use of radio spectrum and for seamless interconnection of different communication systems
American National Standards Institute (ANSI) - creates and promulgates norms and guidelines in almost all business sectors and accredits programs that conform to these standards
ASTM International (ASTM) - formerly known as the American Society for Testing and Materials, an international organization for technical standards that ranges from systems, products, materials and services.
International Electrotechnical Commission (IEC) - makes international standards for "electrotechnology" that covers all electrical, electronic and related technologies.
IPC - formerly known as the Institute for Interconnecting and Packaging Electronic Circuits, an organization that standardizes assembly and production requirements of electronics equipment and assemblies
Underwriters Laboratories (UL) - sets standards and test procedures for tools and equipments, materials, components, products, assemblies mainly dealing with public safety and confidence
Federal Communications Commission (FCC) - establishes rules and policies on interstate and international communications by radio, television, wire, satellite and cable originating and terminating in the United States
 
Mechanical Engineering
National Electrical Manufacturers Association (NEMA) - defines technical standards for industries using electrical enclosures
Canadian Standards Association (CSA) - developed series of quality  assurance standards
 
Web Standards
World Wide Web Consortium (W3C) - international consortium in developing web standards and guidelines to ensure the long term growth for the Web