Thornton Tomasetti
New York, NY, United StatesFounded 1949Industry
Thornton Tomasetti is an engineering consultancy whose protective design practice offers blast analysis, façade hardening, hostile-vehicle mitigation, disproportionate-collapse prevention and threat-vulnerability-risk assessments, with US and UK government experience.
What it does
Threats covered
Categories
Profile
Thornton Tomasetti is a private, employee-owned engineering and consulting firm headquartered in New York City. It was founded in 1949, and the 1956 date given in some listings is when Lev Zetlin Associates, a predecessor, began.
More profile
It provides protective design, blast engineering, security design and consulting, including risk assessment, blast analysis and protection of government and private facilities, and publishes pages on protective design and blast engineering. Its 2025 reporting period ran from 1 January to 31 December 2025, and its corporate progress report states that 12 per cent of employees have ownership.
This is a business line of a large engineering firm rather than a standalone CBRNE company. Contract values were not read.
Ownership
Private and employee-owned; 12 per cent of employees have ownership according to its 2025 corporate progress report
Parent: none (checked)
Sources (5)
Not verified or not found
- Contract values and named projects: not read.
- Vehicle-borne explosive threat: general blast engineering; not tied to a named project.
Questions
What does Thornton Tomasetti do?
Thornton Tomasetti is an engineering consultancy whose protective design practice offers blast analysis, façade hardening, hostile-vehicle mitigation, disproportionate-collapse prevention and threat-vulnerability-risk assessments, with US and UK government experience.
Where is Thornton Tomasetti based?
HQ (as found): New York, NY. HQ country: US.
Who owns Thornton Tomasetti?
Private and employee-owned; 12 per cent of employees have ownership according to its 2025 corporate progress report. Parent: none (checked)
Profiles are compiled from public sources and sampled-checked, not fully audited. Last verified 17 October 2026. Report a correction