Industries › NAICS 541330
Industry · NAICS 541330 · sector 54 Professional, scientific and technical services
Engineering Services
Federal contract obligations classified under NAICS 541330, the organisations that win them and the agencies that award them.
USAspending caveat. Figures are obligations reported by federal agencies to USAspending.gov, not payments. In USAspending's words: "An outlay occurs when federal money is actually paid out, not just promised to be paid ('obligated')." "Every agency has a Senior Accountable Official who must officially certify that the quarterly financial data submitted by their agency is accurate and complete." "If there are any discrepancies in procurement data, FPDS is the authoritative source." Contract data for the Department of Defense and the U.S. Army Corps of Engineers is published with a 90-day delay. Data loaded 30 Sep 2026.
Federal agencies obligated $52B in contracts classified under NAICS 541330, Engineering Services, in FY2025, and $239B over the five fiscal years since FY2022; the industry ranks 2 of 547 on this site.
Obligations were about level on FY2024 ($53B), with $43B so far in FY2026.
The largest recipient organisations over FY2022–FY2025 were Electric Boat Corporation ($19B), Booz Allen Hamilton Inc ($7.4B) and Science Applications International Corporation ($4.7B).
By place of performance, the most money went to VA, CT and MD.
Contract obligations by fiscal year
Compared with the largest industry FY2025
| Measure | This industry | Aircraft Manufacturing | All contracts |
|---|---|---|---|
| Contract obligations, FY2025 | $52B | $61B | $779B |
| Five-year total | $239B | $248B | $3.7T |
| Share of all contract obligations, five years | 6.5% | 6.8% | 100% |
Top contractors obligations, FY2022–FY2025
| # | Organisation | Obligations |
|---|---|---|
| 1 | Electric Boat Corporation | $19B |
| 2 | Booz Allen Hamilton Inc | $7.4B |
| 3 | Science Applications International Corporation | $4.7B |
| 4 | BAE Systems Technology Solutions & Services Inc. | $3.3B |
| 5 | General Dynamics Information Technology, Inc. | $2.8B |
| 6 | Raytheon Company | $2.4B |
| 7 | Hii Mission Technologies Corp | $2.3B |
| 8 | Caci, Inc. - Federal | $2.2B |
| 9 | Amentum Services, Inc. | $2.1B |
| 10 | Peraton Inc. | $1.9B |
| 11 | Serco Inc | $1.8B |
| 12 | CACI NSS, LLC | $1.7B |
| 13 | Northrop Grumman Systems Corporation | $1.6B |
| 14 | Leidos, Inc. | $1.6B |
| 15 | JT4 LLC | $1.5B |
| 16 | The Charles Stark Draper Laboratory, Inc. | $1.4B |
| 17 | AECOM Technical Services, Inc. | $1.4B |
| 18 | Leidos, Inc. | $1.3B |
| 19 | Scientific Research Corporation | $1.2B |
| 20 | Deloitte Consulting LLP | $1.2B |
| 21 | General Dynamics Mission Systems, Inc. | $1.1B |
| 22 | Northrop Grumman Systems Corporation | $1.1B |
| 23 | Smartronix, LLC | $1.1B |
| 24 | Raytheon Company | $1.1B |
| 25 | National Aerospace Solutions, LLC | $1.0B |
Buying agencies $1.0M+ awards
Where the work is performed
Largest awards since FY2022
| Recipient | Awarding agency | Type | Award value | Begun | Place | Record |
|---|---|---|---|---|---|---|
| Booz Allen Hamilton Inc | General Services AdministrationFederal Acquisition Service | ContractDelivery Order | $1.3B | 22 Aug 2022 | VA | USAspending |
| The Charles Stark Draper Laboratory, Inc. | Department of DefenseDepartment of the Navy | ContractDefinitive Contract | $1.2B | 1 Oct 2023 | MA | USAspending |
| Leidos, Inc. | General Services AdministrationFederal Acquisition Service | ContractDelivery Order | $997M | 14 Sep 2022 | VA | USAspending |
| Hii Mission Technologies Corp | General Services AdministrationFederal Acquisition Service | ContractDelivery Order | $893M | 7 Jul 2023 | VA | USAspending |
| Beyond New Horizons, LLC | Department of DefenseDepartment of the Air Force | ContractDefinitive Contract | $890M | 14 Mar 2024 | TN | USAspending |
| The MITRE Corporation | Department of TransportationFederal Aviation Administration | ContractDefinitive Contract | $774M | 20 Oct 2021 | VA | USAspending |
| Hii Mission Technologies Corp | General Services AdministrationFederal Acquisition Service | ContractDelivery Order | $736M | 7 Jul 2022 | VA | USAspending |
| Science Applications International Corporation | General Services AdministrationFederal Acquisition Service | ContractDelivery Order | $700M | 13 Mar 2025 | AL | USAspending |
| The Charles Stark Draper Laboratory, Inc. | Department of DefenseDepartment of the Navy | ContractDefinitive Contract | $679M | 10 Nov 2021 | MA | USAspending |
| Lockheed Martin Corp | Department of DefenseDepartment of the Air Force | ContractDefinitive Contract | $677M | 27 Oct 2023 | PA | USAspending |
Other industries in sector 54: Professional, scientific and technical services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) $217B
- 541512 Computer Systems Design Services $157B
- 541519 Other Computer Related Services $122B
- 541990 All Other Professional, Scientific, and Technical Services $63B
- 541611 Administrative Management and General Management Consulting Services $63B
- 541511 Custom Computer Programming Services $52B
- 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) $50B
- 541710 Research and Development in the Physical, Engineering, and Life Sciences $46B
- 541513 Computer Facilities Management Services $16B
- 541714 Research and Development in Biotechnology (except Nanobiotechnology) $15B
- 541614 Process, Physical Distribution, and Logistics Consulting Services $13B
- 541690 Other Scientific and Technical Consulting Services $11B
- 541810 Advertising Agencies $7.6B
- 541620 Environmental Consulting Services $6.3B
- 541211 Offices of Certified Public Accountants $6.0B
- 541711 Research and Development in Biotechnology $5.6B
- 541720 Research and Development in the Social Sciences and Humanities $5.2B
- 541310 Architectural Services $4.9B
- 541612 Human Resources Consulting Services $4.2B
- 541618 Other Management Consulting Services $4.1B
- 541219 Other Accounting Services $3.8B
- 541380 Testing Laboratories and Services $3.0B
- 541199 All Other Legal Services $2.8B
- 541930 Translation and Interpretation Services $2.0B
Questions and answers
How much does the federal government spend on NAICS 541330?
$52B in contract obligations classified under Engineering Services in FY2025, $239B over the five fiscal years since FY2022. Obligations are commitments, not payments.
Who are the top contractors in Engineering Services?
Electric Boat Corporation ($19B), Booz Allen Hamilton Inc ($7.4B), Science Applications International Corporation ($4.7B), BAE Systems Technology Solutions & Services Inc. ($3.3B), General Dynamics Information Technology, Inc. ($2.8B), by contract obligations over FY2022–FY2025.
Which agencies buy in this industry?
By the value of $1.0M-plus contracts since FY2022: Department of Defense ($97B), General Services Administration ($11B), Department of Homeland Security ($5.2B), Department of Transportation ($3.9B), National Aeronautics and Space Administration ($2.6B).
What is a NAICS code?
In USAspending's words: "NAICS stands for the North American Industrial Classification System. This 6-digit code tells you what industry the work falls into. Each contract record has a NAICS code." Assistance awards (grants, loans, direct payments) carry no NAICS code and are not counted here.
Provenance
Source: USAspending.gov API v2, spending by category (NAICS) by fiscal year, recipient cross-tabulation for FY2022–FY2025 and award search, loaded 30 Sep 2026. State figures come from each state's top-100 NAICS list, so small amounts in a state may be missing. See methodology.