23andMe.com

23andMe offers genetic genealogy and ancestry analysis. Using Relative Finder, connect your family tree by searching the largest online autosomal DNA database in the world for your genetic cousins. You also get your mitochondrial haplogroup, Y-chromosomal haplogroup (if male) and autosomal analysis of your ancestral origins.

Ancestry By DNA

From DNAPrint Genomics in Sarasota FL. A simple mouth-swab will result in a thorough history of one's ancestry/heritage, genetic-wise.

Ancestry DNA testing and information on genealogy

A portal to http://www.easy-dna.com. Blog for ancestry DNA testing and the various other ways of learning more about one's ancestors, drawing up family trees and undertaking one's own genealogy research.

Ancestry DNA Testing: Putting it all together

Genelex tests can determine if you have common male or female ancestors and can determine your percentage of Native American, European, African, and Asian ancestry.

Ancestry.com - DNA Testing by Ancestry.com reveals Ancestry and Genealogy

Genetic relationship testing.

AncestrybyDNA™ - Ancestry, Genealogy and Heritage DNA Testing

Genealogy DNA testing confirms maternal or paternal lineage between two individuals.

Cambridge DNA Services - Discover your ancient roots

Cambridge DNA Services offers autosomal DNA ('admixture'), mtDNA ('motherline'), and Y-DNA ('fatherline') tests for use in personal ancestry research. Our service is based on up-to-date genetic knowledge and processes, is carried out in highly qualified laboratories, and uses what is considered to be the largest available global geographic database.

CATGee

DNA storage and profile kits.

Determinegene: DNA Testing for Siblings & DNA Testing Kits for Home

DNA - Genealem's Genetic Genealogy

General information on DNA sources and links; a list of presentations where Emily Aulicino will be speaking on Genetic Genealogy.

DNA Consulting

From a small DNA test kit sent to our laboratory, we identify key genetic markers within your unique DNA and prepare a detailed personal genealogy report. Y-chromosome, mitochondrial DNA tests, genetic disorder reports and more. The only DNA testing company adding YHRD matches and surname history to your Y chromosome report. ISO-certified laboratory. Genealogies for COOPER, YATES, SIZEMORE and others, including many CHOCTAW and CHEROKEE and MELUNGEON surnames.

DNA Heritage - Your Guide to 'Genetic Genealogy'

DNA testing service for genealogists. Specializes in high-resolution tests of the Y-chromosome. Also run the Ybase database.

DNA Identification Systems -- Home Collection and Storage Kit

DNA Paternity Testing and More... - Gene Tree DNA Testing Center

DNA analysis and counseling for researching biological relationships.

DNA Profiles of America

DNA Family Testing and Home DNA Kits. Ancestry DNA Testing. Serving Texas, Louisiana, and nationwide.

DNA Security, Inc.

DNA Testing/ Paternity Test/ DNA Paternity Testing

Gentrace. Home DNA paternity testing and speciman collection kits.

DNA Worldwide - DNA Testing

UK DNA Tests - Paternity testing, Ancestry testing and Early Gender test.

Ethnicity DNA Testing

Genelex is a privately held corporation providing comprehensive DNA testing services that enhance the health and safety of society.

EthnoAncestry: Providing DNA Genealogy Testing

EthnoAncestry can answer your DNA genealogy testing questions and offer a range of ancestry testing options.