Ost Inc
Washington, DC · UEI FPLRRX1M2YS5 · NAICS 541990
Ost Inc is a federal contractor based in Washington, DC operating in professional, scientific, and technical services (NAICS 541990). Ost Inc has received $403.54 million in lifetime federal awards (per USAspending.gov). BesaGov currently tracks 107 contracts totaling $365.45 million for this firm. Ost Inc's largest customer is Department Of Defense, accounting for $178.01 million of awarded work.
Top contracts
| PIID | Agency | Latest action | Obligated |
|---|---|---|---|
| DTFAWA10A00235CALL0027 | Department Of Transportation | September 1, 2021 | $53.02M |
| 70FA6023F00000037 | Department Of Homeland Security | June 11, 2026 | $38.09M |
| 70FB7021F00000086 | Department Of Homeland Security | August 19, 2025 | $31.65M |
| N6523618F3120 | Department Of Defense | August 4, 2025 | $20.09M |
| W900KK25FA013 | Department Of Defense | December 4, 2025 | $17.57M |
| DTFT6016F00043 | Department Of Transportation | September 25, 2020 | $15.47M |
| W900KK24F7001 | Department Of Defense | July 29, 2024 | $14.42M |
| HSFEEM08J0256 | Department Of Homeland Security | September 24, 2008 | $13.80M |
| 70FA6025F00000032 | Department Of Homeland Security | July 2, 2026 | $12.61M |
| HSFEHQ08C0130 | Department Of Homeland Security | June 30, 2009 | $11.12M |
Top customers
| Agency | Obligated | Contracts |
|---|---|---|
| Department Of Defense | $178.01M | 36 |
| Department Of Homeland Security | $119.12M | 14 |
| Department Of Transportation | $83.97M | 26 |
| Department Of The Treasury | $10.22M | 6 |
| Department Of Housing And Urban Development | $10.07M | 13 |
| General Services Administration | $1.67M | 8 |
| National Science Foundation | $282.0K | 1 |
| Department Of Education | $189.8K | 3 |
NAICS portfolio
| NAICS | Description | Obligated |
|---|---|---|
| 541330 | Engineering Services | $177.19M |
| 541990 | All Other Professional, Scientific, And Technical Services | $82.35M |
| 541712 | Research And Development In The Physical, Engineering, And Life Sciences (Except Biotechnology) | $63.87M |
| 541511 | Custom Computer Programming Services | $52.67M |
| 541519 | Other Computer Related Services | $15.61M |
| 524292 | — | $11.12M |
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Frequently asked questions
How much has Ost Inc received in federal contracts?
Ost Inc has received $403.54 million in lifetime federal awards (per USAspending.gov). BesaGov currently tracks 107 contracts totaling $365.45 million for this firm. Their largest customer is Department Of Defense, representing $178.01 million of awarded work.
What does Ost Inc do?
Ost Inc is a federal contractor based in Washington, DC, registered under NAICS 541990 (professional, scientific, and technical services).