Public Signal Data / Recompetes / NAICS 541690
Recompete radar · NAICS 541690
Other Scientific & Technical Consulting: contracts expiring in the next 18 months
863 federal contracts coded NAICS 541690 (Other Scientific & Technical Consulting), worth $3.60B combined, reach the end of their period of performance by 2028-03. Each one is a recompete a challenger can bid on — if they see it coming early enough. Largest incumbent: System High Corporation ($234M expiring). Biggest buyer: Department of Defense ($1.22B).
Source: official USAspending.gov award data · data as of 2026-09-21, refreshed regularly · amounts are total contract value to date.
863 contractsexpiring by 2028-03 (min $250K)
$3.60Btotal incumbent contract value
327 / 771 / 863expiring in 6 / 12 / 18 months
Daily refreshvia GovCon Monitor on Apify
The list
Top 25 expiring NAICS 541690 contracts by value
Sorted by total contract value. Every row links to the official award record on
USAspending.gov. The actor returns the full set — all 863 contracts — with
days_until_expiry buckets and SAM.gov recompete-notice matching.
| Incumbent | Agency | Value | PoP end | State | Description / award |
|---|---|---|---|---|---|
| System High Corporation | Department of Defense Defense Advanced Research Projects Agency | $146M | 2027-03-20 | VA | PROGRAM SECURITY SERVICES HR001122C0073 ↗ |
| Michael Stapleton Associates, LTD. | Department of State Department of State | $128M | 2027-03-29 | VA | AWARD DIPLOMATIC SECURITY GLOBAL CANINE SERVICES CENTER WORLDWIDE PROTECTIVE SERVICES BUREAU OF DIPLOMATIC SECURITY US DEPARTMENT OF STATE 19AQMM22F3663 ↗ |
| Ameresco Select, INC. | Department of Defense Department of the Navy | $113M | 2027-09-30 | VA | 200305!155882!1700!C7408 !NAVAL FACILITIES ENGINEERING COM!DEAM3699EE73682!C!N! !N!N4740802F4965P00001!20030206!20070930!101162741!03927106… N4740802F4965 ↗ |
| Ameresco Select, INC. | Department of Defense Department of the Air Force | $101M | 2027-05-31 | NJ | SUPER ESPC FOR MID-ATLANTIC REGION FA448410F0001 ↗ |
| Pae Government Services, INC. | Department of State Department of State | $99M | 2026-09-26 | — | TRAINING SERVICES SAQMMA17F2509 ↗ |
| System High Corporation | Department of Defense Missile Defense Agency | $88M | 2027-08-25 | VA | ADVISORY AND ASSISTANCE SERVICES (A&AS) SUPPORTING THE DEVELOPMENT, IMPLEMENTATION, MAINTENANCE, AND ASSESSMENT OF SECURITY, EMERGENCY MANA… HQ085822C0007 ↗ |
| Pae Government Services, INC. | Department of State Department of State | $84M | 2026-09-26 | — | TRAINING SERVICES SAQMMA17F2550 ↗ |
| Parsons Government Services INC. | Department of Defense Department of the Air Force | $77M | 2027-03-31 | — | REQUIREMENTS FOR THE EARLY WARNING CAPABILITY (EWC) AND COMMAND AND CONTROL (C2) TASK ORDER (TO) UNDER THE AIR BASE AIR DEFENSE (ABAD) INDE… FA564125F0011 ↗ |
| Parsons Government Services INC. | Department of Defense Department of the Air Force | $66M | 2026-09-29 | — | ABAD TASK ORDER 5 FA564125F0021 ↗ |
| Chemonics International, INC. | Agency for International Development Agency for International Development | $53M | 2027-09-28 | — | WBG/EGI - MEPPA - BUILDING REGIONAL ECONOMIC BRIDGES (BREB) ACTIVITY 72029422C00003 ↗ |
| General Dynamics Information Technology, INC. | Department of Homeland Security Transportation Security Administration | $45M | 2026-10-19 | VA | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE CURRICULUM DEVELOPMENT (CD) SUPPORT SERVICES UNDER THE SST 4.0 IDIQ 70T01021D7670N001. 70T01021F7670N010 ↗ |
| General Dynamics Information Technology, INC. | Department of Homeland Security Transportation Security Administration | $43M | 2026-10-17 | VA | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE FFDO SUPPORT SERVICES UNDER THE SST 4.0 IDIQ 70T01021D7670N001.ALL TERMS AND CONDITIONS FROM T… 70T01021F6100N001 ↗ |
| Chemonics International, INC. | Agency for International Development Agency for International Development | $42M | 2027-03-22 | — | THE FUTURE TECHNOLOGIES ACTIVITY (FTA) WILL ENHANCE THE COMPETITIVENESS OF THE MOLDOVAN TRANSFORMATIVE SECTORS, INCLUDING LIGHT MANUFACTURI… 72011721C00001 ↗ |
| Akima Data Management LLC | Department of Defense Defense Threat Reduction Agency | $40M | 2027-02-28 | VA | SECURITY SUPPORT SERVICES HDTRA122C0026 ↗ |
| Mobius Consulting, LLC | Department of Defense Missile Defense Agency | $40M | 2027-07-15 | VA | DEI LABOR HQ085821C0013 ↗ |
| Unwin CO | Department of Energy Department of Energy | $37M | 2027-02-28 | DC | THE CONTRACTOR SHALL PROVIDE TECHNICAL AND ADMINISTRATIVE SUPPORT TO THE OFFICE OF ENTERPRISE ASSESSMENT IN SUPPORT OF ITS MISSION TO PROVI… 89303026CEA000006 ↗ |
| National Opinion Research Center | Department of Health and Human Services Office of the Assistant Secretary for Financial Resources | $34M | 2027-02-20 | MD | HEALTHCARE COST AND UTILIZATION PROJECT (HCUP) CLIN 0002 BASE AWARD 75Q80123F32002 ↗ |
| Kennell & Associates INC | Department of Defense Defense Health Agency | $33M | 2026-12-17 | VA | SUPPORT FOR STATISTICAL ANALYSIS IN THE AREAS OF (1) BUDGETING, PRICING AND FINANCIAL ANALYSIS (2) POLICY ANALYSIS (3) LIFECYCLE CONTRACT M… HT001122C0016 ↗ |
| Harvard Pilgrim Health Care, INC. | Department of Health and Human Services Food and Drug Administration | $33M | 2027-09-28 | MA | SENTINEL 2.0 BRIDGE CONTRACT 75F40126C00029 ↗ |
| General Dynamics Information Technology, INC. | Department of Homeland Security Transportation Security Administration | $32M | 2026-12-19 | VA | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE THREAT MITIGATION, ENGINEERING, & IMAGE (TME&I) SUPPORT SERVICES UNDER THE SST 4.0 IDIQ 70T010… 70T01021F7670N011 ↗ |
| Yale New Haven Health Services Corporation | Department of Health and Human Services Centers for Medicare and Medicaid Services | $31M | 2027-01-23 | CT | MIDS DEVELOPMENT, REEVALUATION AND IMPLEMENTATION OF OUTCOME/EFFICIENCY MEASURES FOR HOSPITAL AND ELIGIBLE CLINICIANS 75FCMC24F0042 ↗ |
| John Snow, Incorporated | Agency for International Development Agency for International Development | $30M | 2027-02-08 | — | THE PURPOSE OF THE PRESIDENT'S MALARIA INITIATIVE (PMI) MALARIA REDUCTION ACTIVITY IS TO STRENGTHEN THE CAPACITY OF MALARIA PREVENTION AND… 72061722C00003 ↗ |
| Booz Allen Hamilton INC | Department of the Interior Departmental Offices | $26M | 2027-03-13 | MD | DIGITAL COMMUNICATIONS SERVICES & SUPPORT (DCSS) 140D0423F0341 ↗ |
| K2 Group, INC. | Department of Defense Defense Threat Reduction Agency | $25M | 2027-06-13 | VA | TECHNICAL SUPPORT GROUP SERVICES HDTRA124C0038 ↗ |
| Cherokee Insights LLC | Department of Defense Defense Counterintelligence and Security Agency | $24M | 2027-07-14 | VA | DITMAC BEHAVIORAL THREAT ANALYSIS CENTER SUPPORT SERVICES HS002123C0011 ↗ |
By state
NAICS 541690 recompetes by place of performance
States with at least 3 tracked expiring contracts get their own page; smaller states are covered by the actor itself.
Get all 863 NAICS 541690 recompetes as data
One run of GovCon Monitor returns every expiring contract in this NAICS as flat JSON/CSV — incumbent, value, end date, days_until_expiry — at $0.003 per record. Schedule it daily and never miss an RFP window.