DNA Heritage - http://www.dnaheritage.com
A commercial laboratory specializing in Y-chromosome testing for genealogists. US office in Rochester, New York, and UK office in Weymouth, Dorset. |
Family Tree DNA - http://www.familytreedna.com/
Establishing DNA fingerprints for the purpose of determining ancestral pedigrees. Testing is available to both amateur and professional genealogists. Headquarters in Houston, Texas. |
Geo Gene - http://www.geogene.com/
Using DNA obtained through a simple mouth swab to trace lineages back more than 100,000 years. Offices in the US and UK. |
Oxford Ancestors - http://www.oxfordancestors.com/
A venture backed by Oxford University to harness the power and precision of modern genetics in the service of genealogy. |
Relative Genetics - http://www.relativegenetics.com
Genetic genealogy applies DNA testing to paper-based, genealogical research. A business unit of Sorenson Genomics, located in Salt Lake City, Utah. |