Aerospace

• Aerospace and Electronics Systems
  Society of the IEEE

• American Astronautical Society

• American Institute of Aeronautics
  and Astronautics

• American Meteorological Society

• Society of Flight Test Engineers

• The Airship Association

Agricultural

• The Society for Engineering in Agricultural, Food, and Biological Systems

Architectural

• American Society of Heating,
  Refrigerating and Air-Conditioning Engineers

• Architectural Engineering Institute

• Association for Computer Aided
  Design in Architecture (ACADIA)

• International Council for Building
  Research Studies and Documentation

• The Chartered Institution
  of Building Services Engineers

Bioengineering

• American Chemical Society

• American Institute of Chemical Engineers Food, Pharmaceutical and Bioengineering Division

• American Society for Biochemistry and Molecular Biology

• American Society of Mechanical Engineers 
  Bioengineering Division

• American Society For Microbiology

• Biomedical Engineering Society

• Biophysical Society

• IEEE Engineering in Medicine and Biology Society

• Institute of Biological Engineering

• Society of Industrial Microbiology

Ceramic

• The American Ceramic Society

Chemical

• American Chemical Society

• American Institute of Chemical Engineers

• Association of Consulting Chemists
  and Chemical Engineers

• Electrochemical Society

Civil

• American Society of Civil Engineers

• Institution of Civil Engineers - UK

Computer

• Computer and Automated Systems Association of SME

• IEEE Computer Society

Electrical and Electronics

• Institute of Electrical and
  Electronics Engineers

• IEEE Student Concourse

• Institution of Electrical Engineers

• Institution of Electrical Engineers
  Student Area

Environmental

• American Academy of Environmental Engineers

• Air and Waste Management Association

• American Water Works Association

• National Ground Water Association

Geological / Geophysical

• American Geologic Institute (AGI)

• American Geophysical Union (AGU)

• Canadian Society of
  Exploration Geophysicists (CSEG)

• Environmental and Engineering
  Geophysical Society (EEGS)

• Geological Society of America (GSA)

• Society of Exploration
  Geophysicists (SEG)

• American Geological Institute

Industrial

• Institute of Industrial Engineers

Manufacturing

• Society of Manufacturing Engineers

Materials

• The Minerals, Metals & Materials Society

• The American Ceramic Society

• ASM International

• The Materials Research Society

• National Institute of Ceramic Engineers International

Mechanical

• American Society of Mechanical Engineers

Metallurgical, Mineral, or Mining

• American Institute of Mining, Metallurgical, and Petroleum Engineers

• The Minerals, Metals & Materials Society 

• Society for Mining, Metallurgy, and Exploration

Naval or Marine

• Society of Naval Architects and Marine Engineers

Nuclear

• American Nuclear Society

• Canadian Nuclear Society

• European Nuclear Society

• Nuclear Energy Institute

• Society of Nuclear Medicine

Ocean

• Society of Naval Architects and Marine Engineers

Petroleum

• Society of Petroleum Engineers

Plastics

• American Institute of Chemical Engineers

• Society of Automotive Engineers

• Society of Manufacturing Engineers

• Society of Petroleum Engineers

• The Minerals, Metals & Materials Society

Surveying

• American Congress on Surveying and Mapping

• American Society of Civil Engineers

Welding

• American Society of Mechanical Engineers (ASME)

• American Welding Society

• Edison Welding Institute

• Society of Manufacturing Engineers (SME)

• The Minerals, Metals & Materials Society (TMS)

• TWI (The Welding Institute)