(13. April 2016) 23andMe has about 1.2 million customers. Ancestry DNA was aiming for 1.3 million by the end of 2015 and we can only assume they’ve reached that number by now. The Family Tree DNA database has just over 783,000 records. Assuming there is no overlap between these 3 databases, this means that if all 3 of these companies combined their databases we would have around 3.28 million DNA profiles, or just 1% of the U.S. population. This means that with all the hype around DNA testing companies, they have only managed to achieve a 1% market share combined in the USA alone.
So are these the biggest DNA databases? The answer is no. The U.S. government actually owns the biggest DNA database by far.