- Cellmark
 - Offering court approved, accredited DNA paternity testing to identify relationships. Features standard paternity and maternity testing plus complex DNA relationship testing for immigration purposes. - Dadcheck.com
- Offers discrete services to determine parentage.
- DNA Bioscience
- Offers genetic, paternity, and DNA testing services.
- DNAResults.co.uk
- DNA paternity testing service offering home testing kits.
- easyDNA
- Offers testing service based on analysis of cotton swab sample from the inside of the cheek.
- International Biosciences
- Provides a range of DNA testing, paternity test, genetic testing and DNA ancestry services. Handled quickly, professionally, and confidentially.
- Oxford Ancestors
- Harnesses the precision of modern genetics in the service of genealogy. Also researches the geographical distribution of surnames in Britain.
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