Zen-Bio Inc.
- Offers normal human cells, extracts, research kits and contract assays. Includes protocols for cell culture, ordering information, links to distributors and profile of company in Research Triangle Park, North Carolina.
- http://www.zen-bio.com/

Axday
- Offering technical and commercial solutions to specialized academic, hospital and public research laboratories, as well as the pharmaceutical and biotechnology industries, from Dardilly, France. [English and French]
- http://www.axday.fr/

Vitrolife AB
- Offer sterile nutrient solutions and devices for the preparation, cultivation and preservation of human cells, tissues and organs. Manufactures fertility and transplantation systems in Gothenburg, Sweden and Denver, Colorado.
- http://www.vitrolife.com/

BioProcessors Corp.
- Develops microfabricated platforms for the growth, culture, harvest and analysis of living cells, for applications in drug discovery, assays, screening and toxicology tools. Plant in Palo Alto, with headquarters in Woburn, Massachusetts.
- http://www.bioprocessors.com/

Applied Genetics Laboratories, Inc.
- Offers G-banded karyotyping cell characterization, cytogenetic and isoenzyme analysis for species identification. Includes probes for Cot-1 DNA and to chromosomes for human and mouse chromosome in Melbourne, Florida.
- http://www.appliedgenetics.com/

Caisson Laboratories, Inc.
- Offers reagents and media for mammalian and plant, cell and tissue culture, and related laboratory equipment for biotechnology, academia and industry, from Sugar City, ID.
- http://www.caissonlabs.com/

Amphioxus Cell Technologies
- Biotechnology company offering cultured human liver cell lines with kits for drug discovery, toxicology, plasma protein production, and artificial liver support. Includes technical details, prices and contract work in Houston, TX.
- http://www.amphioxus.com/

American Type Culture Collection
- ATCC is a nonprofit repository of cell lines, offering technical services, and educational programs to private industry, government, and academic organizations around the world, from its base in Manassas, VA.
- http://www.atcc.org/