Regional Offices
AAS staff are certified contracting, project, and financial management professionals located throughout the United States, Europe, and Asia. To contact your regional office, select the geographic location closest to you from the list below the map.












Region 1:
New England

Boston, MA
Point of Contact
Nathan Cahoon
(617) 314-5188
nathan.cahoon@gsa.gov
New England Website
Region 2:
Northeast & Carribean

New York, NY
Point of Contact
Lawrence Unger
(646) 306-9270
lawrence.unger@gsa.gov
Northeast & Carribean Website
Region 3:
Mid-Atlantic

Philadelphia, PA
Point of Contact
Jack Wise
(215) 446-5848
r3-clientrequest@gsa.gov
Mid-Atlantic Website
Submit a request to R3.
Region 4:
Southeast Sunbelt

Atlanta, GA
Point of Contact
Wayne Masters
(478) 283-8039
emmett.masters@gsa.gov
Southeast Sunbelt Website
Region 5:
Great Lakes

Chicago, IL
Points of Contact
Martin Hamlin
(937) 818-0757
martin.hamlin@gsa.gov
Great Lakes Website
Region 6:
The Heartland

Kansas City, MO
Point of Contact
Mark Johnson
(816) 823-1681
marka.johnson@gsa.gov
The Heartland Website
Region 7:
Greater Southwest

Fort Worth, TX
Point of Contact
Alan Searsy
817-228-9569
alan.searsy@gsa.gov
Greater Southwest Website
Region 8:
Rocky Mountain

Denver, CO
Point of Contact
Eric Loveridge
(303) 471-1644
eric.loveridge@gsa.gov
Rocky Mountain Website
Region 9:
Pacific Rim

San Francisco, CA
Point of Contact
Joel Fada
(628) 219-8742
joel.fada@gsa.gov
Pacific Rim Website
Region 10:
Northwest Arctic

Auburn (Seattle), WA
Point of Contact
Kim McFall
(253) 931-7021
kim.mcfall@gsa.gov
Northwest Arctic Website
Region 11:
National Capitol

Washington, DC
Point of Contact
Tonya Butler
(571) 970-8221
tonya.butler@gsa.gov
National Capitol Website
Region:
FEDSIM

Washington, DC
Point of Contact
FEDSIM Website