Agricultural Measurement Instruments – Site developed by Spectrum Technologies describing environmental monitoring equipment.

Apogee Instruments – Site developed by Apogee Instruments describing their temperature and light sensors.

Lights Interaction – Site developed by Lights Interaction in The Netherlands and describes their greenhouse lighting systems.

MEI – Site developed by MEI, a Division of Marcy Enterprises, and describes their ethylene scrubbers and refrigeration systems.

Polysack – Site developed by Polysack in Israel and describes their light and temperature moderating coverings.

Purdue University Floriculture Extension – Developed by Purdue University. Site includes information on many floricultural crops. A comprehensive linkage site.

Vostermans Companies – Site developed by Vostermans Companies in The Netherlands and describes their greenhouse ventilation system.