OTIE is a Native American, tribally-owned, SBA-certified 8(a) small disadvantaged business dedicated to ethical and safe engineering and scientific consulting, design, and construction services for governmental and commercial customers nationwide.

OTIE Logo
 
US Office Locations Map
Milwaukee Office (Business Office)
1033 N. Mayfair Road
Suite 200
Milwaukee, WI 53226
Phone: (414) 257-4200
Fax:     (414) 257-2492

Oneida Office (Corporate Headquarters)
1239 Flightway Drive
DePere, WI 54115
Phone: (920) 330-9894
Fax:     (920) 330-9895

Vandenberg AFB
315 N. F Street
Lompoc, CA 93436
Phone: (805) 736-5100
Fax:     (805) 736-5116

San Diego Office
2247 San Diego Ave.
Suite 238
San Diego, CA 92110
Phone: (619) 230-1712
Fax:     (619) 291-8100

Ventura Office
317 East Main Street
Ventura, CA 93001
Phone: (805) 585-2110
Fax:     (805) 585-2111

San Francisco Office
1777 N. California Blvd.
Suite 310
Walnut Creek, CA 94596
Phone: (925) 906-9698
Fax:     (925) 906-9678

Denver Office
9033 East Easter Place
Suite 200
Centennial, CO 80112
Phone: (303) 770-6227
Fax:     (303) 779-0504

Atlanta Office
1220 Kennestone Circle,
Suite 106
Marietta, GA 30066
Phone: (678) 355-5550
Fax:     (770) 528-0167

Chicago Office
100 West Monroe
Suite 300
Chicago, IL 60603
Phone: (312) 220-7000
Fax:     (312) 220-7004

Raleigh Office
6300 Limousine Drive
Suite 130
Raleigh, NC 27617
Phone: (919) 788-1596
Fax:     (919) 788-1598

Oak Ridge Office
710 South Illinois Avenue
Suite F-102
Oak Ridge, TN 37830
Phone: (865) 220-9000
Fax:     (865) 220-9050

San Antonio Office
14400 Northbrook Drive
Suite 120
San Antonio, TX 78232
Phone: (210) 490-4865
Fax:     (210) 490-4801

Dodgeville Office
619 W. Merrimac St.
Dodgeville, WI 53533
Phone: (608) 935-5513
Fax:     (608) 930-5513

Madison Office
2801 Crossroads Drive,
Suite 1600
Madison, WI 53718
Phone: (608) 243-6470
Fax:     (608) 241-3914