General information for Thornton Tomasetti, Inc
Physical address
1330 Connecticut Ave Nw Ste 300, Washington, Dc, 20036
Mailing address
1330 Connecticut Ave Nw, Ste 300, Washington, DC, 20036
Website
thorntontomasetti.com
Points of contact for Thornton Tomasetti, Inc
SAM.gov Points of Contact
Janet
Oliver
Government Business POC
Government Compliance Specialist
120 Broadway, 15th floor, New York, NY, 10271
Nikki
Tillekens
Electronic Business POC
Regional Controller
120 Broadway, 15th floor, New York, NY, 10271
Additional contact details may be available
NAICS codes for Thornton Tomasetti, Inc
| Code | Description | Small Business |
|---|---|---|
| 541330 PRIMARY | Engineering Services | No |
| 541310 | Architectural Services | No |
| 541340 | Drafting Services | No |
|
541350
|
Building Inspection Services
|
No
|
|
541360
|
Geophysical Surveying and Mapping Services
|
No
|
|
541370
|
Surveying and Mapping (except Geophysical) Services
|
No
|
|
541420
|
Industrial Design Services
|
No
|
|
541511
|
Custom Computer Programming Services
|
No
|
|
541690
|
Other Scientific and Technical Consulting Services
|
No
|
|
541713
|
Research and Development in Nanotechnology
|
No
|
|
541714
|
Research and Development in Biotechnology (except Nanobiotechnology)
|
No
|
|
541715
|
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
|
No
|
Update history
1 change(s) tracked
Jan 15, 2026
NAICS 541715: exception NYNN → NNNN
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