UXCONTRACTNETWORK

UX Contract › Industries › 541690

NAICS 541690

Other Scientific and Technical Consulting Services: federal contracts

Who buys other scientific and technical consulting services from the federal government, who wins the work, and where. Contract obligations in fiscal year 2026 (Oct 1, 2025 to Sep 30, 2026), from USAspending.gov. Contract award types A to D (BPA calls, purchase orders, delivery orders and definitive contracts). Obligations can be negative when an agency takes money back. Data saved from USAspending.gov on Oct 23, 2026.

$1.81 billion$1,811,791,035 in contract obligations
3,790contract awards with money in the year
10agencies buying (top 10 shown)
15states with work

Agencies buying

  1. 1. Department of Defense$526.3 million · 29.1%
  2. 2. Department of Health and Human Services$513.3 million · 28.3%
  3. 3. Agency for International Development$447.5 million · 24.7%
  4. 4. Department of Energy$72.8 million · 4.0%
  5. 5. General Services Administration$60.0 million · 3.3%
  6. 6. Department of the Interior$56.6 million · 3.1%
  7. 7. Department of Commerce$39.9 million · 2.2%
  8. 8. Department of Homeland Security$37.6 million · 2.1%
  9. 9. Department of Veterans Affairs$32.9 million · 1.8%
  10. 10. National Aeronautics and Space Administration$24.9 million · 1.4%

Top companies (recipients)

  1. 1. DOMESTIC AWARDEES (UNDISCLOSED)$446.6 million · 24.6%
  2. 2. KELLY SERVICES, INC.$104.7 million · 5.8%
  3. 3. GENERAL DYNAMICS ONE SOURCE LLC$100.1 million · 5.5%
  4. 4. SYSTEM HIGH CORPORATION$61.5 million · 3.4%
  5. 5. GAP SOLUTIONS, INC.$46.7 million · 2.6%
  6. 6. PUNDIR GROUP, INC$42.7 million · 2.4%
  7. 7. UNWIN CO$42.5 million · 2.3%
  8. 8. PARSONS GOVERNMENT SERVICES INC.$38.2 million · 2.1%
  9. 9. AXLE INFORMATICS, LLC$38.0 million · 2.1%
  10. 10. LOCKHEED MARTIN CORPORATION$37.8 million · 2.1%

Where the work is (states)

  1. 1. Virginia$466.5 million · 25.7%
  2. 2. Maryland$275.8 million · 15.2%
  3. 3. District Of Columbia$116.1 million · 6.4%
  4. 4. Michigan$102.9 million · 5.7%
  5. 5. California$80.1 million · 4.4%
  6. 6. Florida$62.3 million · 3.4%
  7. 7. Massachusetts$47.2 million · 2.6%
  8. 8. New Jersey$34.3 million · 1.9%
  9. 9. Arizona$33.7 million · 1.9%
  10. 10. Georgia$25.6 million · 1.4%

Largest awards in NAICS 541690

RecipientAmountAgencyWhatDatesAward
DOMESTIC AWARDEES (UNDISCLOSED)$897.3 million
$897,326,058		Agency for International DevelopmentTHE PRINCIPAL PURPOSE OF THIS CONTRACT IS TO PROVIDE STRATEGIC TECHNICAL AND PROCUREMENT ASSISTANCE TO THE GOVERNMENT OF UKRAINE (GOU), FOCUSING ON ENHANCING THE RESILIENCE, RELIABILITY, AFFORDABILITY, AND SECURITY OF TH
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Apr 1, 2024 to Apr 3, 202972012124C00003 ↗
LOCKHEED MARTIN CORPORATION
FL		$365.8 million
$365,776,447		Department of Defense
Department of the Army		AH-64 APACHE MODERNIZED TARGET ACQUISITION DESIGNATION SIGHT/PILOT NIGHT VISION SENSOR (MTADS/PNVS) PERFORMANCE BASED LOGISTICS (PBL)
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Jul 1, 2021 to Jun 30, 2028W58RGZ21C0016 ↗
MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC.
VA		$271.4 million
$271,381,012		Department of Defense
Department of the Air Force		SPECIALIZED ACQUISITION AND OPERATION SECURITY SERVICES
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Sep 25, 2018 to Nov 16, 2028FA881918C1001 ↗
UNWIN CO
OH		$213.6 million
$213,640,542		Department of EnergyTHE CONTRACTOR SHALL PROVIDE TECHNICAL AND ADMINISTRATIVE SUPPORT TO THE OFFICE OF ENTERPRISE ASSESSMENT IN SUPPORT OF ITS MISSION TO PROVIDE THE SECRETARY OF ENERGY AND SENIOR DEPARTMENT OF ENERGY MANAGERS WITH AN INDEP
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Feb 21, 2020 to Aug 28, 202689303020CEA000004 ↗
SYSTEM HIGH CORPORATION
VA		$148.0 million
$148,006,792		Department of Defense
Defense Advanced Research Projects Agency		PROGRAM SECURITY SERVICES
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Mar 21, 2022 to Mar 20, 2027HR001122C0073 ↗
MICHAEL STAPLETON ASSOCIATES, LTD.
VA		$128.2 million
$128,242,125		Department of StateAWARD DIPLOMATIC SECURITY GLOBAL CANINE SERVICES CENTER WORLDWIDE PROTECTIVE SERVICES BUREAU OF DIPLOMATIC SECURITY US DEPARTMENT OF STATE
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Mar 30, 2023 to Mar 29, 202719AQMM22F3663 ↗
AMERESCO SELECT, INC.
VA		$112.7 million
$112,738,111		Department of Defense
Department of the Navy		200305!155882!1700!C7408 !NAVAL FACILITIES ENGINEERING COM!DEAM3699EE73682!C!N! !N!N4740802F4965P00001!20030206!20070930!101162741!039271064!006953418!N!SELECT ENERGY SERVICES, INC !24 PRIME PARKWAY !NATICK
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Feb 6, 2003 to Sep 30, 2027N4740802F4965 ↗
AMERESCO SELECT, INC.
NJ		$100.8 million
$100,765,739		Department of Defense
Department of the Air Force		SUPER ESPC FOR MID-ATLANTIC REGION
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Dec 28, 2009 to May 31, 2027FA448410F0001 ↗
SYSTEM HIGH CORPORATION
VA		$88.2 million
$88,238,230		Department of Defense
Missile Defense Agency		ADVISORY AND ASSISTANCE SERVICES (A&AS) SUPPORTING THE DEVELOPMENT, IMPLEMENTATION, MAINTENANCE, AND ASSESSMENT OF SECURITY, EMERGENCY MANAGEMENT, AND PROGRAM PROTECTION FOR THE INTEGRATED, LAYERED MISSILE DEFENSE SYSTEM
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Aug 26, 2022 to Aug 25, 2027HQ085822C0007 ↗
PAE GOVERNMENT SERVICES, INC.$83.5 million
$83,547,967		Department of StateTRAINING SERVICES
NAICS 541690 OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES		Sep 27, 2017 to Sep 26, 2026SAQMMA17F2509 ↗
NAICS 541690 definition (Census) ↗SBA size standards ↗How NAICS codes work →