Vitech Scientific Ltd
Photometers, osmometers, onkometers and other laboratory equipment available from this UK company. Site features a price list and order form.
http://www.vitech.co.uk/

Analytical Technologies UK
Automated electrophoresis, biochemistry analysers, bilirubinometers, ESR analysers, Osmometers and other laboratory equipment. UK only
http://www.analyticaltechnologies.co.uk/

Advanced Instruments, Inc.
Offers osmometers, cryoscopes, microbiology instrumentation for food and dairy product tests and analysis.
http://www.aitests.com/