Kovacs Enterprise
- Complete pictures and descriptions of ice drilling and coring equipment manufactured.
- http://members.valley.net/~austinkovacs/

Optical Sensors for Meteorology
- Optical sensor products primarily aimed at meteorological purposes. Some information also provided on products in development.
- http://www.opticalsensors.se/

Endecotts
- Test sieves, shakers and filters for particle size analysis.
- http://www.endecotts.com/

Advanced Geosciences, Inc.
- Manufacturer of the Sting R1 IP resistivity meter / IP meter imaging system. Now with patent pending dual-mode electrodes in a multi-electrode system.
- http://www.agiusa.com/sting_ip.shtml

UltraViolet Lights for Fluorescent Mineral Collecting
- Ultraviolet lights and accessories for professionals and hobbyists interested in the UV spectrum.
- http://www.uvsystems.com/

Glenammer Engineering
- Manufacturer of laboratory test sieves.
- http://www.glenammer.com/