- National Library of Medicine http://www.nlm.nih.gov/medlineplus/genetictesting.html
- http://www.genzymegenetics.com
- Quest Labs http://www.questdiagnostics.com/hcp/topics/genetictesting/genetictesting.html
- http://www.genome.gov
- http://www.rarediseases.org
- Myriad Genetic Laboratories http://www.myriad.com
- Promega http://www.promega.com
- ReliaGene Technologies, Inc. http://www.gentestlabs.com
- Analytical Genetic Testing Center Paternity & Forensic DNA Lab http://www.geneticid.com
- Beta Genetics DNA Laboratory http://www.betagenetics.com
- BioSynthesis DNA Paternity Analysis http://www.biosyn.com
- The Bode Technology Group, Inc. http://www.bodetech.com
- BRT Labs. http://www.brtlabs.com
- DNA Diagnostics Center Paternity Testing http://www.dnacenter.com
- Fairfax Identity Laboratories http://www.givf.com
- GeneLex Corporation http://www.genelex.com
- Genetic Connections DNA Paternity Test, http://www.dna-geneticconnections.com
- Genetic Profiles Paternity Testing Laboratory http://www.geneticprofiles.com
- Laboratory Corporation of America (LabCorp) http://www.labcorp.com
- Paternity Services of Florida http://www.dnatesting.com