Biotechnology Companies listed alphabetically
http://www.informatik.uni-rostock.de/HUM-MOLGEN/biotech/companies/

Vendors of Scientific Supplies and Equipment
http://www.arabidopsis.com/!sv.html

BIO Online
http://www.bio.com

BioSpace
http://www.biospace.com

Minnesota Biomedical Business Network - MBBNet
http://www.ahc.umn.edu/mbbnet

BIOSUPPLYNET
http://www.biosupplynet.com/bsn/

BioData
http://www.biodata.com