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Federal contractors in Administrative and Support and Waste Management and Remediation Services (NAICS 56)

Every contractor below has declared a NAICS code in sector 56 in SAM.gov.

Federal contractors classified under NAICS sector 56, Administrative and Support and Waste Management and Remediation Services, ranked by the obligations FPDS records for them in FY2026.

84,599 contractorsOpen the filtered vendor listAll industry sectors

Ranked by FY2026 obligations (provisional)

FY2026 obligations (Oct 2025–Sep 2026, provisional; DoD awards signed after Aug 14, 2026 not yet public) · as of Nov 12, 2026. Source: FPDS contract actions, net obligations by the fiscal year of the action.

  1. #1
    $5.5B
    TRIAD NATIONAL SECURITY, LLC
    COLUMBUS, OH
    NAICS 561210
    1 award or order with FY2026 obligations
    UEI X7WUS5LRBQU3
  2. #2
    $3.4B
    SAVANNAH RIVER NUCLEAR SOLUTIONS LLC
    AIKEN, SC
    NAICS 561210
    1 award or order with FY2026 obligations
    UEI XLQ7CKUSQSD5
  3. #3
    $2.3B
    Honeywell Federal Manufacturing & Technologies, LLC
    KANSAS CITY, MO
    NAICS 561210
    1 award or order with FY2026 obligations
    UEI DMEGBYTVBQS5
  4. #4
    $1.6B
    PANTEXAS DETERRENCE, LLC
    Lynchburg, VA
    NAICS 561210
    1 award or order with FY2026 obligations
    UEI SPG7J8395CJ5
  5. #5
    $1.4B
    V2X Systems LLC
    COLORADO SPRINGS, CO
    NAICS 561210
    500 awards and orders with FY2026 obligations
    UEI RRFJZGASZJ41
  6. #6
    $1.1B
    SAVANNAH RIVER MISSION COMPLETION, LLC
    AIKEN, SC
    NAICS 562910
    6 awards and orders with FY2026 obligations
    UEI C32KCWJ94LY8
  7. #7
    $1B
    MISSION SUPPORT & TEST SERVICES LLC
    NORTH LAS VEGAS, NV
    NAICS 561210
    5 awards and orders with FY2026 obligations
    UEI YSYZHPCG4XB3
  8. #8
    $979.8M
    HANFORD TANK WASTE OPERATIONS & CLOSURE, LLC
    Richland, WA
    NAICS 562211
    1 award or order with FY2026 obligations
    UEI S3NQNFD3YS43
  9. #9
    $740M
    LOCKHEED MARTIN CORPORATION
    LEXINGTON, KY
    NAICS 561990
    212 awards and orders with FY2026 obligations
    UEI JKVWEPKJRR65
  10. #10
    $623.4M
    CoreCivic, Inc.
    Brentwood, TN
    NAICS 561210
    35 awards and orders with FY2026 obligations
    UEI HJGMJN1JKL46
  11. #11
    $569.6M
    UNITED CLEANUP OAK RIDGE LLC
    OAK RIDGE, TN
    NAICS 562910
    1 award or order with FY2026 obligations
    UEI CM39N6XPQF41
  12. #12
    $554.1M
    HANFORD MISSION INTEGRATION SOLUTIONS, LLC
    RICHLAND, WA
    NAICS 561210
    UEI X2KSLTU1CM33
  13. #13
    $547.6M
    IDAHO ENVIRONMENTAL COALITION LLC
    TULLAHOMA, TN
    NAICS 562910
    1 award or order with FY2026 obligations
    UEI LQ5ZLNE3EM27
  14. #14
    $540.6M
    GARDAWORLD FEDERAL SERVICES LLC
    ARLINGTON, VA
    NAICS 561612
    10 awards and orders with FY2026 obligations
    UEI FJLMN2N34M93
  15. #15
    $537.5M
    METROPOLITAN SECURITY SERVICES, INC.
    CHATTANOOGA, TN
    NAICS 561612
    114 awards and orders with FY2026 obligations
    UEI M8XJCDL1AE26
  16. #16
    $429.6M
    STRATEGIC STORAGE PARTNERS, LLC.
    BATON ROUGE, LA
    NAICS 561210
    1 award or order with FY2026 obligations
    UEI SJ65WNKH1WA4
  17. #17
    $380.9M
    SALADO ISOLATION MINING CONTRACTORS, LLC
    RESTON, VA
    NAICS 562211
    UEI MHKNRXGKKTS6
  18. #18
    $377.3M
    SOUTHERN OHIO CLEANUP COMPANY LLC
    AIKEN, SC
    NAICS 562910
    2 awards and orders with FY2026 obligations
    UEI NYYVB7U3D766
  19. #19
    $350.4M
    PARAGON SYSTEMS INC
    HERNDON, VA
    NAICS 561612
    60 awards and orders with FY2026 obligations
    UEI RG1VD6RNMXB5
  20. #20
    $344.6M
    TRIPLE CANOPY INC
    HERNDON, VA
    NAICS 561612
    33 awards and orders with FY2026 obligations
    UEI F481BZWYCZA7
  21. #21
    $337.7M
    UNIVERSAL PROTECTION SERVICE, LIMITED PARTNERSHIP
    Conshohocken, PA
    NAICS 561612
    27 awards and orders with FY2026 obligations
    UEI MFA2CSSMMA35
  22. #22
    $305.1M
    SKOOKUM EDUCATIONAL PROGRAMS
    Bremerton, WA
    NAICS 561210
    430 awards and orders with FY2026 obligations
    UEI M1TCVLSF65Z9
  23. #23
    $299.4M
    FLUOR INTERCONTINENTAL, INC
    GREENVILLE, SC
    NAICS 561210
    10 awards and orders with FY2026 obligations
    UEI XMJWLE5WFT29
  24. #24
    $283.6M
    PAE APPLIED TECHNOLOGIES LLC
    CHANTILLY, VA
    NAICS 561210
    5 awards and orders with FY2026 obligations
    UEI K55GHE7FCEF5
  25. #25
    $266.7M
    PERATON RISK DECISION INC.
    LOVELAND, CO
    NAICS 561611
    6 awards and orders with FY2026 obligations
    UEI P78LRLNYPUF4
  26. #26
    $239.9M
    PECKHAM VOCATIONAL INDUSTRIES, INC.
    LANSING, MI
    NAICS 561422
    42 awards and orders with FY2026 obligations
    UEI FKJWA9VNRNC9
  27. #27
    $239.4M
    Akima Facilities Operations LLC
    Herndon, VA
    NAICS 561210
    74 awards and orders with FY2026 obligations
    UEI K218AKKG7SH6
  28. #28
    $239.1M
    AKIMA INFRASTRUCTURE PROTECTION LLC
    HERNDON, VA
    NAICS 561612
    10 awards and orders with FY2026 obligations
    UEI WGN2KJJD27Q3
  29. #29
    $234.5M
    MVM, INC.
    ASHBURN, VA
    NAICS 561612
    3 awards and orders with FY2026 obligations
    UEI ZHJYA5NN32Z5
  30. #30
    $230.1M
    CENTERRA GROUP, LLC
    HERNDON, VA
    NAICS 561612
    14 awards and orders with FY2026 obligations
    UEI H4H3J7SJCT76
See all 84,599 contractors