Data / Federal awards / NAICS 541690
NAICS 541690 Other Scientific and Technical Consulting Services: $6.5 billion in federal contracts to 1,969 recipients (FY2024 to FY2027)
Federal agencies obligated $6.5 billion under NAICS 541690, Other Scientific and Technical Consulting Services, across 9,971 contract awards to 1,969 named recipients in fiscal years 2024 to 2027. The largest recipients are KELLY SERVICES, INC. ($389.4 million), GENERAL DYNAMICS ONE SOURCE LLC ($244.9 million), PARSONS GOVERNMENT SERVICES INC. ($235.6 million). Department of Defense is the largest buyer with $2.1 billion. 15 opportunities under this code are open on SAM.gov now.
SpecStream is the live web data engine for teams and agents. It reads every federal contract award on USAspending.gov and every open opportunity on SAM.gov, and this page is that reading. Ask for the awards in your niche and the winners, agencies, values and recompetes arrive in your sheet, CRM, Slack or agent as they are reported.
- NAICS code
- 541690 Other Scientific and Technical Consulting Services
- Contract awards
- 9,971
- Obligated
- $6.5 billion
- Named recipients
- 1,969
- Buying agencies
- 44
- Small business share of obligations
- 29%
- Full and open competition share
- 78%
- Set aside share
- 11%
- Latest action
- 2026-10-04
Open opportunities in this niche
The same code on SAM.gov, read each morning: 15 opportunities you can still respond to.
Incumbents: the largest recipients
Ranked by dollars obligated in fiscal years 2024 to 2027.
| Recipient | Business size | Awards | Obligated | Share |
|---|---|---|---|---|
| KELLY SERVICES, INC. | Other Than Small Business | 875 | $389.4 million | 6.0% |
| GENERAL DYNAMICS ONE SOURCE LLC | Other Than Small Business | 17 | $244.9 million | 3.8% |
| PARSONS GOVERNMENT SERVICES INC. | Other Than Small Business | 6 | $235.6 million | 3.6% |
| LOCKHEED MARTIN CORPORATION | Other Than Small Business | 1 | $182.5 million | 2.8% |
| SYSTEM HIGH CORPORATION | Other Than Small Business | 4 | $167.9 million | 2.6% |
| UNWIN CO | Small Business | 2 | $115.9 million | 1.8% |
| GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. | Other Than Small Business | 138 | $110.7 million | 1.7% |
| MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. | Small Business | 7 | $110.4 million | 1.7% |
| GAP SOLUTIONS, INC. | Other Than Small Business | 306 | $109.8 million | 1.7% |
| AXLE INFORMATICS, LLC | Small Business | 282 | $107.1 million | 1.6% |
| MICHAEL STAPLETON ASSOCIATES, LTD. | Other Than Small Business | 7 | $96 million | 1.5% |
| CHEMONICS INTERNATIONAL, INC. | Other Than Small Business | 6 | $95.5 million | 1.5% |
| RESEARCH TRIANGLE INSTITUTE | Other Than Small Business | 28 | $89.4 million | 1.4% |
| PUNDIR GROUP, INC | Small Business | 435 | $85.6 million | 1.3% |
| ESSEX MANAGEMENT LLC | Small Business | 12 | $66.6 million | 1.0% |
| BOOZ ALLEN HAMILTON INC | Other Than Small Business | 66 | $59.6 million | 0.9% |
| NATIONAL ACADEMY OF SCIENCES | Other Than Small Business | 446 | $57.8 million | 0.9% |
| AMERESCO SELECT, INC. | Other Than Small Business | 4 | $52.6 million | 0.8% |
| JANUS RESEARCH GROUP, LLC | Other Than Small Business | 10 | $52.3 million | 0.8% |
| BATTELLE MEMORIAL INSTITUTE | Other Than Small Business | 14 | $51.9 million | 0.8% |
| HDR ENVIRONMENTAL, OPERATIONS AND CONSTRUCTION, INC. | Other Than Small Business | 58 | $48.7 million | 0.7% |
| GOLDBELT PROFESSIONAL SERVICES, LLC | Small Business | 10 | $48.1 million | 0.7% |
| DEPENDABLE GLOBAL SOLUTIONS, LLC | Small Business | 8 | $48 million | 0.7% |
| KBR WYLE SERVICES, LLC | Other Than Small Business | 15 | $47.2 million | 0.7% |
| GUIDEHOUSE DIGITAL LLC | Other Than Small Business | 210 | $47 million | 0.7% |
| YALE NEW HAVEN HEALTH SERVICES CORPORATION | Other Than Small Business | 7 | $46.2 million | 0.7% |
| TETRA TECH ES, INC. | Other Than Small Business | 4 | $45.3 million | 0.7% |
| RMC 2021 LLC | Small Business | 24 | $44.7 million | 0.7% |
| KEGMAN INC. | Small Business | 11 | $41.8 million | 0.6% |
| RAYTHEON COMPANY | Other Than Small Business | 7 | $41.7 million | 0.6% |
| JP SYSTEMS, INC. | Small Business | 19 | $41.3 million | 0.6% |
| LEIDOS, INC. | Other Than Small Business | 2 | $39.8 million | 0.6% |
| FEDWRITERS, INC. | Small Business | 103 | $39.2 million | 0.6% |
| DELOITTE CONSULTING LLP | Other Than Small Business | 19 | $37.6 million | 0.6% |
| NATIONAL OPINION RESEARCH CENTER | Other Than Small Business | 15 | $36.9 million | 0.6% |
| ACUMEN LLC | Other Than Small Business | 11 | $35 million | 0.5% |
| DAI GLOBAL LLC | Other Than Small Business | 3 | $34.1 million | 0.5% |
| MATHEMATICA INC. | Other Than Small Business | 23 | $33.2 million | 0.5% |
| HARVARD PILGRIM HEALTH CARE, INC. | Other Than Small Business | 3 | $32.7 million | 0.5% |
| V2X AEROSPACE LLC | Other Than Small Business | 19 | $31.9 million | 0.5% |
| WSP USA ENVIRONMENT & INFRASTRUCTURE INC. | Other Than Small Business | 24 | $31.1 million | 0.5% |
| PALLADIUM INTERNATIONAL LLC | Other Than Small Business | 3 | $30.3 million | 0.5% |
| TATITLEK GOVERNMENT SERVICES, LLC | Small Business | 6 | $30.3 million | 0.5% |
| MINATOISHI PALUMBO ARCHITECTS, INC. | Small Business | 1 | $29.5 million | 0.5% |
| NOBLIS, INC. | Other Than Small Business | 11 | $29 million | 0.4% |
| TECHNOLOGY SECURITY ASSOCIATES, INC. | Small Business | 13 | $28.4 million | 0.4% |
| SCIENCE APPLICATIONS INTERNATIONAL CORPORATION | Other Than Small Business | 51 | $27.6 million | 0.4% |
| THE JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY LLC | Other Than Small Business | 32 | $27.6 million | 0.4% |
| K2 GROUP, INC. | Small Business | 3 | $27.4 million | 0.4% |
| AMERICAN INSTITUTES FOR RESEARCH IN THE BEHAVIORAL SCIENCES | Other Than Small Business | 6 | $25.5 million | 0.4% |
Agencies buying under this code
| Agency | Awards | Obligated | Largest recipient |
|---|---|---|---|
| Department of Defense | 1,762 | $2.07 billion | GENERAL DYNAMICS ONE SOURCE LLC |
| Department of Health and Human Services | 2,958 | $1.43 billion | KELLY SERVICES, INC. |
| Agency for International Development | 76 | $1.41 billion | CHEMONICS INTERNATIONAL, INC. |
| Department of Energy | 160 | $257.6 million | UNWIN CO |
| Department of Homeland Security | 191 | $215.9 million | GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. |
| Department of the Interior | 644 | $176 million | ESSEX MANAGEMENT LLC |
| Department of State | 215 | $153 million | MICHAEL STAPLETON ASSOCIATES, LTD. |
| National Aeronautics and Space Administration | 145 | $143.6 million | KBR WYLE SERVICES, LLC |
| Department of Commerce | 671 | $117.9 million | FEDWRITERS, INC. |
| General Services Administration | 755 | $115.1 million | PUNDIR GROUP, INC |
| Department of Veterans Affairs | 602 | $111.7 million | JP SYSTEMS, INC. |
| Department of Transportation | 273 | $64.2 million | SCIENCE APPLICATIONS INTERNATIONAL CORPORATION |
| Department of the Treasury | 201 | $43.6 million | THE BRATTLE GROUP INC |
| Federal Trade Commission | 129 | $43 million | BERKELEY RESEARCH GROUP, LLC |
| Department of Agriculture | 214 | $37.9 million | CHICKASAW BUSINESS SOLUTIONS, LLC |
| Department of Justice | 396 | $35.7 million | ECS FEDERAL, LLC |
| United States Trade and Development Agency | 73 | $23.7 million | ASCENDANT PROGRAM SERVICES, LLC |
| Nuclear Regulatory Commission | 128 | $16.2 million | INFORMATION SYSTEMS LABORATORIES, INC |
| Small Business Administration | 36 | $7.2 million | AGLAUNCH ENGINE, LLC |
| Environmental Protection Agency | 49 | $5.2 million | GARTNER, INC. |
| Millennium Challenge Corporation | 48 | $4.8 million | MATHEMATICA INC. |
| U.S. International Development Finance Corporation | 3 | $3.4 million | ALVAREZ & MARSAL FEDERAL, LLC |
| Commodity Futures Trading Commission | 4 | $3.2 million | ACCENTURE FEDERAL SERVICES LLC |
| Securities and Exchange Commission | 69 | $3.1 million | INTEGRA FEC LLC |
| Department of Labor | 22 | $3 million | LEXICON AND LINE LLC |
Obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2024 | $2.38 billion |
| FY2025 | $2.18 billion |
| FY2026 | $1.93 billion |
| FY2027 | $3.5 million |
Products and services bought
| Code | Product or service | Awards | Obligated |
|---|---|---|---|
| R499 | Support- Professional: Other | 3,458 | $2.51 billion |
| R408 | Support- Professional: Program Management/support | 990 | $1.42 billion |
| R425 | Support- Professional: Engineering/technical | 807 | $654.4 million |
| R706 | Support- Management: Logistics Support | 38 | $202.7 million |
| B546 | Special Studies/analysis- Security (physical/personal) | 43 | $185.8 million |
| DA01 | IT and Telecom - Business Application/application Development Support Services (labor) | 72 | $136.5 million |
| R707 | Support- Management: Contract/procurement/acquisition Support | 12 | $109.1 million |
| U008 | Education/training- Training/curriculum Development | 31 | $104.9 million |
| R424 | Support- Professional: Expert Witness | 499 | $85.6 million |
| Z1AA | Maintenance of Office Buildings | 430 | $85.5 million |
Largest contract awards
| Award ID | Recipient | Agency | Type | NAICS | What it buys | Obligated in window | Award value | Starts | Ends | Place of performance | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W58RGZ21C0016 | LOCKHEED MARTIN CORPORATION | Department of Defense | Definitive Contract | 541690 | AH-64 APACHE MODERNIZED TARGET ACQUISITION DESIGNATION SIGHT/PILOT NIGHT VISION SENSOR (MTADS/PNVS) PERFORMANCE BASED LOGISTICS (PBL) | $182,523,867 | $365,776,447 | July 1, 2021 | June 30, 2028 | Orlando, FL | usaspending.gov |
| FA881918C1001 | MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. | Department of Defense | Definitive Contract | 541690 | SPECIALIZED ACQUISITION AND OPERATION SECURITY SERVICES | $110,424,379 | $10,897,646 | September 25, 2018 | November 16, 2028 | Herndon, VA | usaspending.gov |
| HR001122C0073 | SYSTEM HIGH CORPORATION | Department of Defense | Definitive Contract | 541690 | PROGRAM SECURITY SERVICES | $99,896,641 | $166,476,462 | March 21, 2022 | March 20, 2027 | Arlington, VA | usaspending.gov |
| 19AQMM22F3663 | MICHAEL STAPLETON ASSOCIATES, LTD. | Department of State | Delivery Order | 541690 | AWARD DIPLOMATIC SECURITY GLOBAL CANINE SERVICES CENTER WORLDWIDE PROTECTIVE SERVICES BUREAU OF DIPLOMATIC SECURITY US DEPARTMENT OF STATE | $98,292,777 | $137,786,446 | March 30, 2023 | March 29, 2027 | Winchester, VA | usaspending.gov |
| 89303020CEA000004 | UNWIN CO | Department of Energy | Definitive Contract | 541690 | THE CONTRACTOR SHALL PROVIDE TECHNICAL AND ADMINISTRATIVE SUPPORT TO THE OFFICE OF ENTERPRISE ASSESSMENT IN SUPPORT OF ITS MISSION TO PROVID | $78,539,010 | $216,126,649 | February 21, 2020 | August 28, 2026 | Columbus, OH | usaspending.gov |
| FA564125F0011 | PARSONS GOVERNMENT SERVICES INC. | Department of Defense | Delivery Order | 541690 | REQUIREMENTS FOR THE EARLY WARNING CAPABILITY (EWC) AND COMMAND AND CONTROL (C2) TASK ORDER (TO) UNDER THE AIR BASE AIR DEFENSE (ABAD) INDEF | $72,944,500 | $76,674,500 | April 1, 2025 | March 31, 2027 | Germany | usaspending.gov |
| HQ085822C0007 | SYSTEM HIGH CORPORATION | Department of Defense | Definitive Contract | 541690 | ADVISORY AND ASSISTANCE SERVICES (A&AS) SUPPORTING THE DEVELOPMENT, IMPLEMENTATION, MAINTENANCE, AND ASSESSMENT OF SECURITY, EMERGENCY MANAG | $67,826,665 | $110,819,209 | August 26, 2022 | August 25, 2027 | Chantilly, VA | usaspending.gov |
| FA564125F0021 | PARSONS GOVERNMENT SERVICES INC. | Department of Defense | Delivery Order | 541690 | ABAD TASK ORDER 5 | $65,945,786 | $65,945,787 | September 30, 2025 | September 29, 2026 | Germany | usaspending.gov |
| FA824025F5001 | GENERAL DYNAMICS ONE SOURCE LLC | Department of Defense | Delivery Order | 541690 | SECURITY SUPPORT SERVICES (SSS) FOR THE DEPARTMENT OF THE AIR FORCE (DAF). | $43,205,996 | $48,263,889 | February 25, 2025 | February 28, 2029 | Falls Church, VA | usaspending.gov |
| 72067423C00003 | RESEARCH TRIANGLE INSTITUTE | Agency for International Development | Definitive Contract | 541690 | EMPOWERING EAST AND CENTRAL AFRICA (EECA) | $41,240,087 | $88,993,687 | June 15, 2023 | July 31, 2028 | Kenya | usaspending.gov |
| 80JSC017C0015 | LEIDOS, INC. | National Aeronautics and Space Administration | Definitive Contract | 541690 | INTERNATIONAL SPACE STATION PROGRAM'S CARGO MISSION CONTRACT 3 | $39,790,265 | $238,384,764 | January 2, 2018 | September 30, 2024 | Houston, TX | usaspending.gov |
| FA564121F0016 | PARSONS GOVERNMENT SERVICES INC. | Department of Defense | Delivery Order | 541690 | THE CONTRACTOR SHALL PARTICIPATE IN THE ONGOING RADSIL DEVELOPMENT ACTIVITIES TO ENSURE THE DESIGN OF AN EFFECTIVE AND SUSTAINABLE ABAD CAPA | $37,694,128 | $54,164,719 | August 1, 2021 | July 31, 2026 | Germany | usaspending.gov |
| 89303026CEA000006 | UNWIN CO | Department of Energy | Definitive Contract | 541690 | THE CONTRACTOR SHALL PROVIDE TECHNICAL AND ADMINISTRATIVE SUPPORT TO THE OFFICE OF ENTERPRISE ASSESSMENT IN SUPPORT OF ITS MISSION TO PROVID | $37,371,997 | $41,996,840 | March 1, 2026 | February 28, 2027 | Washington, DC | usaspending.gov |
| FA564123F0004 | PARSONS GOVERNMENT SERVICES INC. | Department of Defense | Delivery Order | 541690 | AIR BASE AIR DEFENSE ARCHITECTURE & INTEGRATION SERVICES | $34,234,635 | $45,231,825 | February 6, 2023 | July 31, 2026 | Germany | usaspending.gov |
| 75F40126C00029 | HARVARD PILGRIM HEALTH CARE, INC. | Department of Health and Human Services | Definitive Contract | 541690 | SENTINEL 2.0 BRIDGE CONTRACT | $32,918,651 | $32,918,651 | March 29, 2026 | September 28, 2027 | Canton, MA | usaspending.gov |
| 75FCMC24F0042 | YALE NEW HAVEN HEALTH SERVICES CORPORATION | Department of Health and Human Services | Delivery Order | 541690 | MIDS DEVELOPMENT, REEVALUATION AND IMPLEMENTATION OF OUTCOME/EFFICIENCY MEASURES FOR HOSPITAL AND ELIGIBLE CLINICIANS | $31,055,473 | $31,055,473 | March 24, 2024 | January 23, 2027 | New Haven, CT | usaspending.gov |
| FA702226F0014 | V2X AEROSPACE LLC | Department of Defense | Delivery Order | 541690 | THIS IS AN IDIQ CONTRACT WITH A 10 YEAR ORDERING PERIOD TO ACQUIRE NON-PERSONAL SERVICES FOR THE OPERATION, MAINTENANCE, AND SUSTAINMENT OF | $31,054,115 | $34,139,115 | November 1, 2025 | June 22, 2027 | Sterling, VA | usaspending.gov |
| 70T04021F7672N052 | BATTELLE MEMORIAL INSTITUTE | Department of Homeland Security | BPA Call | 541690 | TASK ORDER UNDER THE DEVELOPMENT TEST & EVALUATION SUPPORT SERVICES BLANKET PURCHASE AGREEMENT TO BATTELLE MEMORIAL INSTITUTE FOR TIME AND M | $30,163,644 | $47,975,175 | September 17, 2021 | September 16, 2027 | Arlington, DC | usaspending.gov |
| W9128A24C0001 | MINATOISHI PALUMBO ARCHITECTS, INC. | Department of Defense | Definitive Contract | 541690 | CULTURAL RESOURCE SERVICES, INITIAL PHASE 1 AND PHASE 2 EFFORTS, HAWAII WILDFIRE RESPONSE DEBRIS REMOVAL SUPPORT | $29,474,665 | $29,474,665 | October 16, 2023 | January 15, 2026 | Fort Shafter, HI | usaspending.gov |
| 7200AA19C00080 | PALLADIUM INTERNATIONAL LLC | Agency for International Development | Definitive Contract | 541690 | CATALYZE BLENDED CAPITAL INVESTMENT PLATFORM | $29,346,317 | $249,999,999 | September 30, 2019 | February 11, 2025 | Washington, DC | usaspending.gov |
| FA824024F5001 | GENERAL DYNAMICS ONE SOURCE LLC | Department of Defense | Delivery Order | 541690 | SECURITY SUPPORT SERVICES | $29,184,191 | $214,066,467 | March 15, 2024 | February 28, 2029 | Falls Church, VA | usaspending.gov |
| 72067424C00001 | CHEMONICS INTERNATIONAL, INC. | Agency for International Development | Definitive Contract | 541690 | EMPOWERING SOUTHERN AFRICA (ESA) | $28,150,000 | $84,642,569 | November 7, 2023 | November 6, 2028 | South Africa | usaspending.gov |
| FA824026F5001 | GENERAL DYNAMICS ONE SOURCE LLC | Department of Defense | Delivery Order | 541690 | SECURITY SUPPORT SERVICES (SSS) FOR THE DEPARTMENT OF THE AIR FORCE (DAF). | $27,804,401 | $45,150,481 | March 1, 2026 | February 28, 2029 | Falls Church, VA | usaspending.gov |
| 72012122C00002 | DAI GLOBAL LLC | Agency for International Development | Definitive Contract | 541690 | FINANCIAL SECTOR REFORM ACTIVITY | $26,329,908 | $93,300,000 | July 13, 2022 | February 12, 2025 | Ukraine | usaspending.gov |
| 75Q80123F32002 | NATIONAL OPINION RESEARCH CENTER | Department of Health and Human Services | Delivery Order | 541690 | HEALTHCARE COST AND UTILIZATION PROJECT (HCUP) CLIN 0002 BASE AWARD | $25,367,951 | $33,729,002 | February 21, 2023 | February 20, 2027 | Bethesda, MD | usaspending.gov |
Updated October 6, 2026. Read from USAspending.gov. Public U.S. federal spending data (U.S. Department of the Treasury). Obligations are the contract actions dated in fiscal years 2024 to 2027 of the USAspending.gov award archive of 2026-10-06; a contract's total value is its current value as USAspending reports it, including earlier years. Recipients are matched on their SAM.gov UEI, never on the name, and are shown as the government prints them. Sole proprietorships and opted-out entities count in the totals and are not named. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.