Family Tree DNA
From Mayflower DNA
Family Tree DNA (FTDNA) is the oldest and largest Y-DNA and mtDNA testing company for personal/genealogical usage. They offer both Short Tandem Repeat (STR) testing (in bundles 37 Y-STRs and 111 Y-STRs) as well as Single Nucleotide Polymorphisms (SNPs) through their Big Y-700 test. Prices for these products are available at their website and they have sales from time to time.
The GSMD sponsors the Mayflower DNA Project led by Robert "Mike" Terry (Kenneth Whittemore assisting on the Y-DNA side) with Susan Abanor working on the mtDNA side. There are a number of surname projects associated with Mayflower passengers as well as the sons in-law.