Top 100 Contractors in NAICS 541: Professional, Scientific, and Technical Services, Jul 2025–Jun 2026
Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe
The top 10 won 26% of NAICS 541 contract dollars from July 2025 through June 2026
Ranking facts
- Contract obligations
- $230,968,099,161 Net of deobligations, by contracts coded NAICS 541 or a code under it
- Contractors
- 18,779 Parent companies with an obligation
- Largest contractor
- General Dynamics Corporation $13.1 billion, 5.4% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $13,138,712,873 | |||
| 2 | $9,829,138,991 | |||
| 3 | $7,376,043,762 | |||
| 4 | $6,586,913,711 | |||
| 5 | $5,218,698,662 | |||
| 6 | $4,815,164,732 | |||
| 7 | $4,236,532,410 | |||
| 8 | $4,111,820,881 | |||
| 9 | $3,468,148,877 | |||
| 10 | $3,413,143,687 | |||
| 11 |
Accenture Federal Services LLC
|
$3,344,471,958 | ||
| 12 | $2,814,665,422 | |||
| 13 | $2,387,219,705 | |||
| 14 |
Johns Hopkins University
|
$2,367,218,353 | ||
| 15 | $2,338,783,009 | |||
| 16 | $2,216,623,192 | |||
| 17 |
Guidehouse Inc.
|
$1,983,580,491 | ||
| 18 | $1,932,335,584 | |||
| 19 | $1,841,779,263 | |||
| 20 |
BAE Systems
|
$1,782,305,022 | ||
| 21 | $1,652,689,545 | |||
| 22 | $1,619,993,043 | |||
| 23 | $1,600,544,813 | |||
| 24 | $1,592,199,771 | |||
| 25 |
Oracle Health Government Services Inc.
|
$1,523,815,507 | ||
| 26 | $1,488,869,078 | |||
| 27 |
Reliance Steel & Aluminum Co.
Top agencies
|
$1,474,828,642 | ||
| 28 |
Tcom, L.P.
Top agencies
|
$1,446,028,326 | ||
| 29 | $1,409,449,618 | |||
| 30 | $1,203,011,081 | |||
| 31 | $1,189,947,514 | |||
| 32 |
Thundercat Technology LLC
|
$1,133,567,204 | ||
| 33 | $1,098,104,491 | |||
| 34 |
KBR Wyle Services LLC
|
$1,034,080,052 | ||
| 35 | $1,024,124,489 | |||
| 36 | $967,516,025 | |||
| 37 | $966,015,065 | |||
| 38 | $965,166,081 | |||
| 39 | $962,913,170 | |||
| 40 | $864,278,223 | |||
| 41 |
ManTech International Corporation
|
$854,650,395 | ||
| 42 |
V2X, Inc.
|
$778,072,188 | ||
| 43 |
Anduril Industries Inc.
|
$764,213,815 | ||
| 44 | $762,132,345 | |||
| 45 | $753,776,273 | |||
| 46 | $744,735,910 | |||
| 47 | $733,454,932 | |||
| 48 | $700,024,513 | |||
| 49 | $635,106,872 | |||
| 50 | $627,536,922 | |||
| 51 | $608,138,059 | |||
| 52 | $605,217,513 | |||
| 53 |
Asgn Incorporated
|
$590,449,491 | ||
| 54 | $580,545,148 | |||
| 55 | $555,588,731 | |||
| 56 | $553,735,859 | |||
| 57 | $553,163,257 | |||
| 58 | $500,394,485 | |||
| 59 |
Ernst & Young LLP
|
$493,771,731 | ||
| 60 |
CGI Federal Inc.
|
$493,695,136 | ||
| 61 | $491,959,541 | |||
| 62 | $488,299,467 | |||
| 63 | $485,720,784 | |||
| 64 | $481,738,901 | |||
| 65 | $474,146,112 | |||
| 66 | $454,222,860 | |||
| 67 | $435,621,915 | |||
| 68 | $435,427,029 | |||
| 69 | $433,517,994 | |||
| 70 | $429,076,416 | |||
| 71 | $427,295,047 | |||
| 72 | $418,789,085 | |||
| 73 |
World Wide Technology LLC
|
$415,802,469 | ||
| 74 | $400,187,435 | |||
| 75 |
DDB Chicago Inc.
Top agencies
|
$392,097,224 | ||
| 76 |
Semanticbits LLC
|
$391,556,204 | ||
| 77 | $386,348,840 | |||
| 78 | $370,617,006 | |||
| 79 | $339,605,462 | |||
| 80 | $338,501,954 | |||
| 81 | $318,081,580 | |||
| 82 |
BC Partners LLP
Top agencies
|
$313,357,600 | ||
| 83 |
Mythics Inc.
|
$306,599,820 | ||
| 84 | $306,525,933 | |||
| 85 | $301,561,071 | |||
| 86 |
Jacobs Government Services Company
|
$301,301,038 | ||
| 87 | $293,182,524 | |||
| 88 | $291,660,992 | |||
| 89 |
Suratech LLC
Top agencies
|
$289,988,170 | ||
| 90 | $283,781,367 | |||
| 91 | $281,280,919 | |||
| 92 | $278,394,676 | |||
| 93 | $277,821,439 | |||
| 94 | $275,582,025 | |||
| 95 | $273,675,398 | |||
| 96 | $265,084,002 | |||
| 97 | $264,050,109 | |||
| 98 | $263,598,065 | |||
| 99 | $261,765,172 | |||
| 100 | $255,209,096 |
Show 75 more
100 of 18,779 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 541
| Code | Net obligations | Largest contractor |
|---|---|---|
| 5415 Computer Systems Design and Related Services | $72,632,202,171 | Leidos Holdings, Inc. |
| 5417 Scientific Research and Development Services | $64,044,639,241 | Lockheed Martin Corporation |
| 5413 Architectural, Engineering, and Related Services | $56,903,782,787 | General Dynamics Corporation |
| 5416 Management, Scientific, and Technical Consulting Services | $19,778,010,872 | Reliance Steel & Aluminum Co. |
| 5419 Other Professional, Scientific, and Technical Services | $13,390,280,850 | Battelle Memorial Institute |
| 5412 Accounting, Tax Preparation, Bookkeeping, and Payroll Services | $1,812,532,826 | Kpmg LLP |
| 5418 Advertising, Public Relations, and Related Services | $1,349,741,435 | DDB Chicago Inc. |
| 5411 Legal Services | $994,403,986 | Acacia Center for Justice |
| 5414 Specialized Design Services | $62,504,992 | Aleto, Inc. |
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $243 billion obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Jul 2024–Jun 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 NAICS 541 contractors in Jul 2025–Jun 2026?
1. General Dynamics Corporation ($13.1B), 2. Lockheed Martin Corporation ($9.83B), 3. Booz Allen Hamilton Holding Corporation ($7.38B), 4. Leidos Holdings, Inc. ($6.59B), 5. RTX Corporation ($5.22B), 6. CACI International Inc. ($4.82B), 7. Northrop Grumman Corporation ($4.24B), 8. Science Applications International Corporation ($4.11B), 9. Deloitte ($3.47B), 10. Fluor Corporation ($3.41B).
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