Government All Other Professional, Scientific, and Technical Services Contracts
NAICS 541990 · All Other Professional, Scientific, and Technical Services
Government all other professional, scientific, and technical services contracts totaled $37.9B across 21,093 awards from FY2024 to FY2026. Obligations were down 1.3% in FY2026 vs FY2025. The Department of Defense was the largest buyer, with $14.7B (39% of the total).
Key figures
In FY2026, contract obligations were $11,766,126,762 across 8,443 awards with activity that year, a change of -1.3% from $11,917,408,816 in FY2025. From FY2024 to FY2026, obligations totaled $37,864,288,955 across 21,093 awards.
- Obligated in FY2026
- $11.8B
- Awards in FY2026
- 8,443
- Change vs FY2025
- -1.3%
- Total, FY2024 to FY2026
- $37.9B
Note: FY2026 ended on Sep 30, 2026. The Department of Defense publishes contract data with a 90-day delay, so FY2026 totals may still rise as late reports arrive.
All Other Professional, Scientific, and Technical Services contract spending by year
Federal all other professional, scientific, and technical services contracts per fiscal year (October to September), under NAICS 541990. The table below lists the same numbers.
| Fiscal year | Obligated | Awards | Change |
|---|---|---|---|
| FY2026 | $11,766,126,762 | 8,443 | -1.3% |
| FY2025 | $11,917,408,816 | 12,157 | -16% |
| FY2024 | $14,180,753,377 | 14,710 | n/a |
About government all other professional, scientific, and technical services contracts
Federal spending on all other professional, scientific, and technical services contracts fell 17% from FY2024 ($14.2B) to FY2026 ($11.8B). FY2026 closed recently, and Defense Department contracts are reported up to 90 days late, so its total may still rise.
Spending is spread widely: the top 3 contractors account for 25% of the total. No single company dominates, which leaves room for new and small contractors.
The Department of Defense spends the most on all other professional, scientific, and technical services contracts (39%), followed by the Department of Energy. The states with the most of this work are Idaho, Virginia and District of Columbia.
NAICS 541990 (All Other Professional, Scientific, and Technical Services) is part of the Professional, Scientific, and Technical Services sector.
Top all other professional, scientific, and technical services government contractors
Companies ranked by contract dollars under NAICS 541990 (All Other Professional, Scientific, and Technical Services).
| # | Contractor | Obligated | Share |
|---|---|---|---|
| 1 | Battelle Energy Alliance, LLC | $6,204,126,507 | 16.4% |
| 2 | Sierra Nevada Company, LLC | $1,648,386,570 | 4.4% |
| 3 | Booz Allen Hamilton Inc | $1,647,058,434 | 4.3% |
| 4 | The MITRE Corporation | $1,504,458,967 | 4.0% |
| 5 | Hii Mission Technologies Corp | $1,389,741,688 | 3.7% |
| 6 | Domestic Awardees (Undisclosed) | $1,054,483,267 | 2.8% |
| 7 | Oak Ridge Associated Universities, Incorporated | $899,301,359 | 2.4% |
| 8 | Institute for Defense Analyses | $747,043,120 | 2.0% |
| 9 | Ptsi Managed Services Inc | $652,632,703 | 1.7% |
| 10 | Lockheed Martin Corporation | $523,042,655 | 1.4% |
Agencies buying all other professional, scientific, and technical services
Federal agencies ranked by contract dollars under NAICS 541990.
| # | Agency | Obligated | Share |
|---|---|---|---|
| 1 | Department of Defense | $14,734,051,098 | 38.9% |
| 2 | Department of Energy | $7,322,594,292 | 19.3% |
| 3 | Agency for International Development | $4,436,006,758 | 11.7% |
| 4 | Department of Health and Human Services | $4,087,571,580 | 10.8% |
| 5 | General Services Administration | $3,149,222,982 | 8.3% |
| 6 | Department of Transportation | $1,229,510,600 | 3.2% |
| 7 | Department of Commerce | $641,163,422 | 1.7% |
| 8 | Department of State | $410,601,599 | 1.1% |
| 9 | Department of Homeland Security | $342,401,828 | 0.9% |
| 10 | Department of Veterans Affairs | $323,194,057 | 0.9% |
Where all other professional, scientific, and technical services contract work is performed
States ranked by contract dollars, using the place of performance on each award.
| # | State | Obligated | Share |
|---|---|---|---|
| 1 | Idaho | $6,230,683,896 | 16.5% |
| 2 | Virginia | $5,843,588,207 | 15.4% |
| 3 | District of Columbia | $4,580,158,491 | 12.1% |
| 4 | Maryland | $3,035,594,251 | 8.0% |
| 5 | Colorado | $2,181,167,512 | 5.8% |
| 6 | Massachusetts | $1,982,644,249 | 5.2% |
| 7 | California | $1,934,748,185 | 5.1% |
| 8 | Texas | $1,061,807,255 | 2.8% |
| 9 | Tennessee | $883,682,011 | 2.3% |
| 10 | North Carolina | $703,176,030 | 1.9% |
Recent all other professional, scientific, and technical services contract awards
The latest all other professional, scientific, and technical services contracts, newest first. Each award ID links to its record on USAspending.gov.
| Start date | Recipient | Agency and description | Amount | Record |
|---|---|---|---|---|
| Sep 30, 2026 | Meetings Northwest, Inc. | Department of TransportationTHE UTC PROGRAM REPRESENTS ONE OF THE NATION'S LARGEST COORDINATED TRANSPORTATION RESEARCH ENTERPRISES. WHILE INDIVIDUAL CENTERS SUCCESSFULLY EXECUTE UNIQUE RESEARCH PORTFOLIOS, STRUCTURAL SILOS HAVE | $250,000 | 693JK426P600046 |
| Sep 30, 2026 | National Industries for the Blind | General Services AdministrationCARTRIDGE,ADDITIVE | $49 | 47QSSC26FEXAT |
| Sep 30, 2026 | National Industries for the Blind | General Services AdministrationCARTRIDGE,ADDITIVE | $49 | 47QSSC26FEXAM |
| Sep 30, 2026 | Cape Fox Endeavor, LLC | National Archives and Records AdministrationNARA & DOD 1776 AWARD PROJECT - CIVIC EDUCATION JOINT AGENCY INITIATIVE | $10,000,000 | 88310326C00011 |
| Sep 30, 2026 | Leak Tight Analysis Inc. | National Aeronautics and Space AdministrationPRECISION CLEANING AND CALIBRATION | $100,000 | 80NSSC26P1753 |
| Sep 30, 2026 | Vantor Inc. | National Aeronautics and Space AdministrationCSDA PROGRAM - EVALUATION TASK ORDER - MOSAICS | $4,084,382 | 80HQTR26FA079 |
| Sep 30, 2026 | National Association of State Alcohol and Drug Agency Directors, Inc. | Department of Health and Human ServicesTITLE: SINGLE STATE AGENCIES SYSTEMS TECHNICAL ASSISTANCE AWARD TYPE: FIRM FIXED PRICE | $1,648,826 | 75S20426F39001 |
| Sep 30, 2026 | Byfacility S.L. | Department of Health and Human ServicesSYNTHETIC MEMORIES - OLFACTORY CUES FOR DEMENTIA MEMORY RECALL RESEARCH | $66,935 | 75N98026P01912 |
| Sep 30, 2026 | Janat Alwatan Inc. | Department of Health and Human ServicesPORT LINEAR SMOKING MACHINE | $26,496 | 75F40126P00427 |
| Sep 30, 2026 | Mohawk Networks LLC | Department of Health and Human ServicesENTERPRISE DIGITIZATION OF FDA SUBMISSION RECORDS | $8,500,000 | 75F40126C00226 |
| Sep 30, 2026 | Kinetic Multimedia Systems, Inc. | Department of Homeland SecurityLAYER2/3 COLD WEATHER GLOVES | $73,602 | 70Z02426FBOST0034 |
| Sep 30, 2026 | Renaissance Code Development LLC | Nuclear Regulatory CommissionSUPPORT FOR THE RADIOLOGICAL ASSESSMENT SYSTEM FOR CONSEQUENCE ANALYSIS (RASCAL) COMPUTER CODE AND EMERGENCY RESPONSE ASSESSMENT TOOLS FOR THE NRC OPERATIONS CENTER AND THE RADIATION PROTECTION COMPUT | $235,335 | 31310026C0021 |
| Sep 30, 2026 | Analysis Group Inc | Federal Trade CommissionCONSULTING SERVICES | $248,625 | 29FTC126C0045 |
| Sep 30, 2026 | Deloitte & Touche LLP | Department of StateBUREAU OF ECONOMIC, ENERGY, AND BUSINESS AFFAIRS, OFFICE OF ENERGY SUPPLY CHAINS (EEB/ESC)IN THE THE EAST ASIA AND PACIFIC (EAP) REGION | $0 | 19AQMM26F7258 |
| Sep 30, 2026 | Julia Auckland | Department of AgricultureDPG DASK POPULATION SURVEY | $34,638 | 1284LM26P0046 |
| Sep 30, 2026 | Eurofins Genomics LLC | Department of AgricultureTHE NATIONAL WILDLIFE RESEARCH CENTER'S CWD PROJECT COLLECTS SAMPLES AND CONDUCTS DNA EXTRACTION AT THE NWRC FACILITIES. THE CWD PROJECT UTILIZES COMMERCIAL PARTNERS TO CONDUCT SEQUENCING OF THE PRNP | $21,150 | 12639526C0058 |
| Sep 29, 2026 | Leadsonline, LLC | Department of JusticeNIBIN - BRASSTRAX REFRESH - FY26/27 | $2,362,844 | 15A00026FAQ000197 |
| Sep 29, 2026 | Mda Geospatial Services Inc | National Aeronautics and Space AdministrationCSDA PROGRAM: SAR TASK ORDER | $299,556 | 80HQTR26FA092 |
| Sep 29, 2026 | Iceye US, Inc | National Aeronautics and Space AdministrationCSDA PROGRAM: SAR TASK ORDER | $1,499,568 | 80HQTR26FA091 |
| Sep 29, 2026 | Umbra Lab, Inc | National Aeronautics and Space AdministrationCSDA PROGRAM: SAR TASK ORDER | $999,075 | 80HQTR26FA090 |
| Sep 29, 2026 | Airbus DS Geo Inc. | National Aeronautics and Space AdministrationCSDA PROGRAM - SAR TASK ORDER | $1,299,558 | 80HQTR26FA089 |
| Sep 29, 2026 | Capella Space Corporation | National Aeronautics and Space AdministrationCSDA PROGRAM - SAR TASK ORDER | $913,300 | 80HQTR26FA088 |
| Sep 29, 2026 | National Academy of Sciences | National Aeronautics and Space AdministrationSTUDY - STRENGTHENING PREPARATION FOR THE FUTURE U.S. GEODETIC WORKFORCE | $830,000 | 80HQTR26FA087 |
| Sep 29, 2026 | Orbital Sidekick Inc | National Aeronautics and Space AdministrationCSDA PROGRAM - EVALUATION TASK ORDER | $2,138,700 | 80HQTR26F0022 |
| Sep 29, 2026 | National Industries for the Blind | General Services AdministrationCARTRIDGE,ADDITIVE | $4,894 | 47QSSC26FERE3 |
Open all other professional, scientific, and technical services government bids
The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.
Dept of Defense · Solicitation · NAICS 541990 · Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)
Posted Oct 29, 2026 · Responses due Nov 13, 2026
Dept of Defense · Combined Synopsis/Solicitation · NAICS 541990 · MN · Small Business Set Aside - Total
Posted Oct 29, 2026 · Responses due Nov 12, 2026
National Archives and Records Administration · Solicitation · NAICS 541990 · MD · Small Business Set Aside - Total
Posted Oct 29, 2026 · Responses due Nov 12, 2026
How to win government all other professional, scientific, and technical services contracts
Federal all other professional, scientific, and technical services contracts are posted on SAM.gov under NAICS 541990. Register your business free on SAM.gov with this code, watch for all other professional, scientific, and technical services bids, and look for small business set-asides: many all other professional, scientific, and technical services contracts for small business are reserved for small firms.
Explore government all other professional, scientific, and technical services contracts by state, agency and contractor
- Department of Defense contracts
- Department of Energy contracts
- Agency for International Development contracts
- Department of Health and Human Services contracts
- General Services Administration contracts
- Government contracts in Idaho
- Government contracts in Virginia
- Government contracts in District of Columbia
- Government contracts in Maryland
- Government contracts in Colorado
- Battelle Energy Alliance government contracts
- Sierra Nevada government contracts
- Booz Allen Hamilton government contracts
- MITRE government contracts
- Hii Mission Technologies government contracts
Frequently asked questions
- What NAICS code is used for government all other professional, scientific, and technical services contracts?
- Federal all other professional, scientific, and technical services contracts use NAICS 541990 (All Other Professional, Scientific, and Technical Services). List this code in your free SAM.gov registration to be found for these contracts.
- Who are the largest all other professional, scientific, and technical services government contractors?
- By contract dollars under NAICS 541990 from FY2024 to FY2026, the largest were Battelle Energy Alliance, LLC ($6.2B), Sierra Nevada Company, LLC ($1.6B) and Booz Allen Hamilton Inc ($1.6B).
- Which agencies buy the most all other professional, scientific, and technical services?
- From FY2024 to FY2026, the biggest buyers were the Department of Defense ($14.7B), the Department of Energy ($7.3B) and the Agency for International Development ($4.4B).
- Where are government all other professional, scientific, and technical services contracts performed?
- By contract dollars, the most federal all other professional, scientific, and technical services work is performed in Idaho ($6.2B), Virginia ($5.8B) and District of Columbia ($4.6B).
- Is federal spending on all other professional, scientific, and technical services contracts growing?
- Federal all other professional, scientific, and technical services contract obligations fell 17% from FY2024 ($14.2B) to FY2026 ($11.8B). FY2026 closed recently, and Defense Department contracts are reported up to 90 days late, so its total may still rise.
- Do I qualify as a small business for all other professional, scientific, and technical services contracts?
- It depends on the SBA size standard for NAICS 541990, which is set either by average annual revenue or by number of employees. Check the current table of size standards on sba.gov before you bid on small business set-asides.
- What do I need to bid on government all other professional, scientific, and technical services contracts?
- An active SAM.gov registration (free) with NAICS 541990 listed, the licenses and insurance your state requires for all other professional, scientific, and technical services work, and examples of similar past work. Some solicitations also ask for specific certifications or security clearances.