Hellmuth, Obata & Kassabaum, P.C.
Washington, DC · UEI CK9QSQY8MGN4 · NAICS 541330
Hellmuth, Obata & Kassabaum, P.C. is a federal contractor based in Washington, DC operating in professional, scientific, and technical services (NAICS 541330). Hellmuth, Obata & Kassabaum, P.C. has received $87.76 million in lifetime federal awards (per USAspending.gov). BesaGov currently tracks 47 contracts totaling $87.39 million for this firm. Hellmuth, Obata & Kassabaum, P.C.'s largest customer is Department Of State, accounting for $48.47 million of awarded work.
Top contracts
| PIID | Agency | Latest action | Obligated |
|---|---|---|---|
| SAQMMA10C0303 | Department Of State | September 28, 2022 | $38.80M |
| 75N99024F00006 | Department Of Health And Human Services | September 30, 2025 | $9.25M |
| 19AQMM18F2513 | Department Of State | September 28, 2022 | $8.99M |
| 75N99021F00006 | Department Of Health And Human Services | June 24, 2026 | $3.68M |
| 75N99022F00005 | Department Of Health And Human Services | September 3, 2024 | $3.58M |
| 75N99024F00004 | Department Of Health And Human Services | September 18, 2025 | $3.49M |
| 75N99022F00001 | Department Of Health And Human Services | January 15, 2026 | $2.70M |
| 75N99023F00001 | Department Of Health And Human Services | September 8, 2025 | $2.54M |
| 8936CC04218 | Smithsonian Institution | December 9, 2008 | $2.00M |
| 75N99025F00001 | Department Of Health And Human Services | September 11, 2025 | $1.62M |
Top customers
| Agency | Obligated | Contracts |
|---|---|---|
| Department Of State | $48.47M | 5 |
| Department Of Health And Human Services | $33.88M | 23 |
| Department Of The Interior | $2.56M | 10 |
| Smithsonian Institution | $2.00M | 1 |
| Department Of The Treasury | $554.5K | 5 |
| Millennium Challenge Corporation | $278.2K | 1 |
| Department Of Defense | $15.7K | 2 |
| Department Of Justice | $0 | 1 |
NAICS portfolio
| NAICS | Description | Obligated |
|---|---|---|
| 541330 | Engineering Services | $81.89M |
| 541320 | — | $2.56M |
| Unknown | — | $2.00M |
| 541310 | Architectural Services | $1.30M |
| 236220 | — | $7.7K |
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Frequently asked questions
How much has Hellmuth, Obata & Kassabaum, P.C. received in federal contracts?
Hellmuth, Obata & Kassabaum, P.C. has received $87.76 million in lifetime federal awards (per USAspending.gov). BesaGov currently tracks 47 contracts totaling $87.39 million for this firm. Their largest customer is Department Of State, representing $48.47 million of awarded work.
What does Hellmuth, Obata & Kassabaum, P.C. do?
Hellmuth, Obata & Kassabaum, P.C. is a federal contractor based in Washington, DC, registered under NAICS 541330 (professional, scientific, and technical services).