23andMe
https://www.23andme.com/

Family Tree DNA
https://www.familytreedna.com/

African Ancestry
http://www.africanancestry.com

Native American (including Cherokee databases)
http://dnaconsultants.com/

DNA Tribes
http://www.dnatribes.com/

AncestryDNA
https://www.ancestry.com/dna

National Geographic DNA
https://genographic.nationalgeographic.com/