Locations


Regional Offices

Office Contact: Gary Mayer, V.P., Business Development
11107 Sunset Hills Road, Suite 400
Reston, VA 20190
Phone: (703) 478-5186
Fax: (703) 471-4180
Office Contact: Neil Feist
4835 University Square, Suite 15
Huntsville, AL 35816
(256) 970-2100
Office Contact: Jodie Johnson
340 East Palm Lane, Suite A240
Phoenix, Arizona 85004-4530
Phone: (602) 307-0047
Fax: (480) 498-7144
Office Contact: Bob Overfelt, PG, V.P
315 Montgomery Street, 9th Floor
San Francisco, CA 94104
Phone: (415) 829-4206
Office Contact: Shawn Eichelberger, PG
14142 Denver West Parkway, Bldg 51, Suite 225
Lakewood, Colorado 80401
Phone: (303) 518-9940
Fax: (866) 757-3048
Office Contact: Richard Smith, PE
3452 Lake Lynda Drive, Suite 400
Orlando, Florida 32817
Phone: (407) 210-6627
Fax: (407) 965-5447
Office Contact: Robert Keskonis, PE
5805 State Bridge Road, Suite G207
Duluth, Georgia 30097
Phone: (404) 227-5909
Office Contact: Alan Rittgers, PG
6340 Glenwood Street, Ste. 200, Bldg. 7
Overland Park, Kansas 66202
Phone: (913) 317-8860
Fax: (913) 317-8868
Spectrum Engineering and Environmental, LLC
Office Contact:
Bill Maehl, PE
1413 4Th Ave N
Billings, MO 59101
Phone: (406) 259-2412
Fax: (406)-259-1456
Office Contact: Neil DeYong, PMP
110 James S McDonnell Blvd
Hazelwood, MO 63042
Phone: (314) 380-3035
Office Contact: Doug Sutton, Ph.D., PE
33 Arno Street
Oakhurst, NJ 07755
Phone: (732) 233-1161
Office Contact: Eric Evans, PG, PMP
Northway 10 Executive Park, 313 Ushers Road
Ballston Lake, New York 12019
Phone: (518) 877-0390
Fax: (518) 877-0414
Office Contact: Tad Fox, PG
581 Boston Mills Road
Suite 600
Hudson, Ohio 44236
Phone: (330) 463-3303
Office Contact: Chris Wolfe, PE
801 Arch Street, Suite 504
Philadelphia, Pennsylvania 19107
Phone: (215) 636-0667
Fax: (215) 636-0668
Office Contact: David Reasons, PMP
85 NE Interstate Loop 410, Suite 605
San Antonio, TX 78216
Phone: (210) 348-8778
Fax: (210) 348-8777
Office Contact: Bruce Rappaport, Ph.D., V.P.
2306 South Arthur Loop
Kennewick, WA 99338
Phone: (703) 478-5186
Fax: (703) 471-4180

Project Offices

For more information contact projectoffice@hgl.com

Clear AFS, AK
Anniston, AL
Delaware City, DE
Cape Canaveral, FL
MacDill AFB, FL
Hastings, NE
Mead, NE
Washington Borough, NJ
Minotola, NJ
Las Vegas, NV
Deadwood, SD

Satellite Offices

For more information contact satelliteoffice@hgl.com

Austin, AR
Flagstaff, AZ
Marlborough, CT
Fort Myers, FL
Palm City, FL
Chicago, IL
Lino Lakes, MN
Clinton, MO
Hickman, NE
Fremont, NH
Tularosa, NM
Portland, OR
Chambersburg, PA
Edgefield, SC
Knoxville, TN
Austin, TX
Richmond, VT
Vienna, WV