Robert
The only laboratories that do genetic genealogy tests are:
- Family Tree DNA, who do some testing at their Genomics Centre in Houston and some in their labs at the University of Arizona
- Sorenson Genomics, who do the tests for DNA Heritage and Ancestry
- Oxford Ancestors, who have their own lab in Oxford
- Ethnoancestry, based in Scotland, who have their testing done at the University of London and some testing done at Marligen
I suspect the Scottish lab you mention was Ethnoancestry. There was also another British company called Family Genetics based in Manchester who went into liquidation earlier this year. All the labs mentioned above are reputable. Unfortunately the two British companies offer a limited range of tests, have very high prices and no facilities for project management. Family Tree DNA are the market leaders. I use them for all my projects and have been very happy with their services. I have not had any problems sending kits to America, and have no qualms about using an American testing company.