The Stedman Surname DNA project has been underway since about 2002. We have nearly 100 members worldwide. This project is jointly administered by John Lisle in New Hampshire (USA), and David Stedman in Wales (UK). We are affiliated with the Stidham-Steadham DNA project.
Here is the page where the current results are posted
https://www.familytreedna.com/groups/stedman/about/background
If you are interested in joining the project, go to
https://www.familytreedna.com/group-join.aspx?&group=Stedman