Engineering Services · Environmental Science
HGL offices and sites
HGL has 8 sites in 1 country; 8 sites have open roles now. The busiest is Reston.
Data updated Nov 15, 2026 · Back to the company report
8Sites
1Countries
8Hiring offices
19Open roles
Every site
| Site | Country | Type | Open roles | Roles in 90 days | Hires most for | Engineering | Seen since |
|---|---|---|---|---|---|---|---|
| Reston | United States | Regional office | 5 | 9 | Industrial Engineering, Finance, Management | 20% | Aug 2026 |
| Overland Park | United States | Plant / site | 3 | 4 | Industrial Engineering, Management | 0% | Oct 2026 |
| Billings | United States | Plant / site | 3 | 3 | Industrial Engineering, Science & Research | 33% | Oct 2026 |
| Ballston Lake | United States | Not classified | 2 | 2 | Management, Industrial Engineering | 0% | Aug 2026 |
| Philadelphia | United States | Not classified | 2 | 2 | Management, Industrial Engineering | 0% | Nov 2026 |
| Lakewood | United States | Not classified | 2 | 1 | Industrial Engineering | 0% | Aug 2026 |
| San Antonio | United States | Not classified | 1 | 1 | Field & Service | 0% | Nov 2026 |
| Seattle | United States | Not classified | 1 | 0 | Biotech | 0% | Aug 2026 |
Source: office addresses in postings and company registers
Sites no longer seen
Pleasanton
United States · Not classified
last seen Oct 2026
How to cite
HGL, Offices. Alion, Nov 15, 2026. https://alion.io/company/hgl-com/offices