Top 100 Contractors in NAICS 8139: Business, Professional, Labor, Political, and Similar Organizations, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 8139: Business, Professional, Labor, Political, and Similar Organizations, FY2025.
The top 10 won 62% of NAICS 8139 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $84,634,173 Net of deobligations, by contracts coded NAICS 8139 or a code under it
- Contractors
- 227 Parent companies with an obligation
- Largest contractor
- General Dynamics Corporation $20 million, 21.3% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $19,956,332 | |||
| 2 | $11,747,453 | |||
| 3 | $11,556,938 | |||
| 4 | $2,849,734 | |||
| 5 | $2,603,951 | |||
| 6 | $2,066,854 | |||
| 7 | $1,984,555 | |||
| 8 | $1,813,177 | |||
| 9 |
Provider Resources Inc
Top agencies
|
$1,668,308 | ||
| 10 | $1,472,553 | |||
| 11 |
Academy Health
Top agencies
|
$1,364,210 | ||
| 12 | $1,306,575 | |||
| 13 | $1,118,255 | |||
| 14 | $1,113,390 | |||
| 15 | $1,049,977 | |||
| 16 |
Cornell University
Top agencies
|
$977,313 | ||
| 17 |
John Wiley & Sons Inc.
Top agencies
|
$816,187 | ||
| 18 |
Sae International
Top agencies
|
$793,357 | ||
| 19 | $781,954 | |||
| 20 | $758,959 | |||
| 21 | $709,094 | |||
| 22 |
Purdue University
Top agencies
|
$691,187 | ||
| 23 | $691,010 | |||
| 24 | $620,650 | |||
| 25 | $550,012 | |||
| 26 |
American Association of State Highway and Transportation Officials
Top agencies
|
$526,030 | ||
| 27 | $500,785 | |||
| 28 | $475,873 | |||
| 29 |
Cabell Publishing Co
Top agencies
|
$407,531 | ||
| 30 | $402,336 | |||
| 31 | $393,976 | |||
| 32 | $382,271 | |||
| 33 | $346,516 | |||
| 34 | $326,693 | |||
| 35 | $318,270 | |||
| 36 | $307,611 | |||
| 37 | $296,991 | |||
| 38 | $296,943 | |||
| 39 | $292,000 | |||
| 40 |
Vlogic Systems, Inc.
Top agencies
|
$263,828 | ||
| 41 | $253,620 | |||
| 42 | $232,275 | |||
| 43 | $226,840 | |||
| 44 | $217,978 | |||
| 45 |
Mgma-Acmpe
Top agencies
|
$215,270 | ||
| 46 | $213,200 | |||
| 47 | $199,500 | |||
| 48 | $159,416 | |||
| 49 | $157,000 | |||
| 50 | $145,156 | |||
| 51 | $144,600 | |||
| 52 | $142,500 | |||
| 53 | $142,343 | |||
| 54 | $127,402 | |||
| 55 | $122,720 | |||
| 56 |
OASIS Open
|
$122,600 | ||
| 57 | $119,349 | |||
| 58 |
Danchini Aero
Top agencies
|
$112,952 | ||
| 59 | $109,201 | |||
| 60 | $107,530 | |||
| 61 | $107,246 | |||
| 62 | $104,830 | |||
| 63 | $102,600 | |||
| 64 | $101,101 | |||
| 65 |
World 50 LLC
Top agencies
|
$101,000 | ||
| 66 |
Fitzpatrick Laurie
Top agencies
|
$101,000 | ||
| 67 |
Association for the Advancement of Medical Instrumentation Inc.
|
$100,957 | ||
| 68 | $100,000 | |||
| 69 | $92,344 | |||
| 70 | $88,206 | |||
| 71 | $88,000 | |||
| 72 | $85,000 | |||
| 73 | $81,960 | |||
| 74 | $80,996 | |||
| 75 | $80,000 | |||
| 76 | $77,000 | |||
| 77 |
Abms Solutions LLC
Top agencies
|
$76,570 | ||
| 78 | $75,856 | |||
| 79 |
EDM Council Inc.
Top agencies
|
$75,000 | ||
| 80 | $69,829 | |||
| 81 |
Evidence Group LLC
Top agencies
|
$68,320 | ||
| 82 | $67,500 | |||
| 83 | $67,365 | |||
| 84 | $63,684 | |||
| 85 |
BFP Enterprises LLC
Top agencies
|
$63,000 | ||
| 86 | $62,900 | |||
| 87 |
Aaalac International
Top agencies
|
$61,182 | ||
| 88 | $61,083 | |||
| 89 | $61,000 | |||
| 90 | $60,320 | |||
| 91 | $60,100 | |||
| 92 | $60,000 | |||
| 93 | $60,000 | |||
| 94 | $60,000 | |||
| 95 | $57,320 | |||
| 96 | $53,661 | |||
| 97 | $52,848 | |||
| 98 | $52,332 | |||
| 99 | $51,353 | |||
| 100 | $50,350 |
Show 75 more
100 of 227 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 8139
| Code | Net obligations | Largest contractor |
|---|---|---|
| 81392 Professional Organizations | $81,087,012 | General Dynamics Corporation |
| 81391 Business Associations | $3,260,693 | American Hospital Association |
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 $93.8 million 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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 8139 contractors in Aug 2025–Jul 2026?
1. General Dynamics Corporation ($20M), 2. Quality Insights, Inc. ($11.7M), 3. Joint Commission On Accreditation of Healthcare Organizations ($11.6M), 4. Nevada System of Higher Education ($2.85M), 5. National Association for Public Health Statistics and Information Systems, Inc. ($2.6M), 6. Maximus Federal Services, Inc. ($2.07M), 7. Center for Energy Workforce Development ($1.98M), 8. American College of Surgeons ($1.81M), 9. Provider Resources Inc ($1.67M), 10. Island Peer Review Organization Inc. ($1.47M).
On GovTribe
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