Top 100 Contractors in PSC R424: Expert Witness, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 34% of FY2025 PSC R424 contract dollars
Ranking facts
- Contract obligations
- $195,015,061 Net of deobligations, by contracts coded PSC R424
- Contractors
- 770 Parent companies with an obligation
- Largest contractor
- Georgia TECH Applied Research Corp $24.7 million, 7.6% 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 | $24,746,969 | |||
| 2 | $16,707,181 | |||
| 3 |
The Brattle Group Inc
|
$14,777,211 | ||
| 4 |
Emcube Inc.
Top agencies
|
$12,411,331 | ||
| 5 | $12,075,656 | |||
| 6 | $9,489,285 | |||
| 7 | $7,606,658 | |||
| 8 | $6,484,192 | |||
| 9 | $4,301,185 | |||
| 10 |
Gradco LLC
Top agencies
|
$3,755,373 | ||
| 11 | $3,291,480 | |||
| 12 | $3,177,547 | |||
| 13 | $2,946,723 | |||
| 14 | $2,800,791 | |||
| 15 | $2,324,437 | |||
| 16 |
Signature Science, LLC
Top agencies
|
$2,233,716 | ||
| 17 | $2,133,657 | |||
| 18 |
Infoedge Technology, Inc.
Top agencies
|
$1,980,630 | ||
| 19 | $1,884,789 | |||
| 20 | $1,818,181 | |||
| 21 |
Litcon Group LLC
Top agencies
|
$1,778,138 | ||
| 22 |
Cliftonlarsonallen LLP
Top agencies
|
$1,619,000 | ||
| 23 |
Sellers Realty, LLC
Top agencies
|
$1,499,777 | ||
| 24 | $1,472,421 | |||
| 25 |
Sikich CPA LLC
Top agencies
|
$1,442,854 | ||
| 26 | $1,326,730 | |||
| 27 | $1,310,483 | |||
| 28 |
Wright Water Engineers, Inc.
Top agencies
|
$1,277,573 | ||
| 29 | $1,272,625 | |||
| 30 | $1,256,853 | |||
| 31 |
RER Solutions, Inc.
Top agencies
|
$1,247,674 | ||
| 32 | $1,234,330 | |||
| 33 | $1,227,212 | |||
| 34 | $1,104,047 | |||
| 35 | $1,101,584 | |||
| 36 |
Tankersley Michael
Top agencies
|
$1,068,355 | ||
| 37 |
Groff Engineering & Consulting PLLC
Top agencies
|
$1,061,085 | ||
| 38 | $990,000 | |||
| 39 | $959,070 | |||
| 40 | $901,395 | |||
| 41 |
Kleinschmidt Associates
Top agencies
|
$895,703 | ||
| 42 |
Industrial Economics Inc.
Top agencies
|
$889,194 | ||
| 43 |
Deloitte
Top agencies
|
$883,826 | ||
| 44 |
Caci, LLC - Commercial
Top agencies
|
$882,678 | ||
| 45 | $866,952 | |||
| 46 |
HKA Global LLC
Top agencies
|
$865,500 | ||
| 47 | $849,350 | |||
| 48 |
Axlor Consulting LLC
Top agencies
|
$821,226 | ||
| 49 | $786,296 | |||
| 50 |
Engineering Systems Inc.
Top agencies
|
$779,167 | ||
| 51 | $767,567 | |||
| 52 |
Centaur Consulting Group LLC
Top agencies
|
$738,410 | ||
| 53 | $717,826 | |||
| 54 | $712,936 | |||
| 55 |
Aufrance Valuations, LLC
Top agencies
|
$712,040 | ||
| 56 | $710,000 | |||
| 57 |
Christopher A. Mann
Top agencies
|
$688,894 | ||
| 58 |
Eckles David L
Top agencies
|
$669,885 | ||
| 59 |
Hemming Morse, LLC
Top agencies
|
$648,778 | ||
| 60 | $635,030 | |||
| 61 | $615,482 | |||
| 62 |
FEA Advisors LLC
Top agencies
|
$598,275 | ||
| 63 | $574,433 | |||
| 64 |
Core Legal Concepts, LLC
Top agencies
|
$571,047 | ||
| 65 |
Microfoundations, Inc.
Top agencies
|
$530,000 | ||
| 66 | $521,516 | |||
| 67 |
Sundance Consultants, LLC
Top agencies
|
$519,883 | ||
| 68 | $516,677 | |||
| 69 | $510,107 | |||
| 70 |
W.f. Baird & Associates Ltd.
Top agencies
|
$509,165 | ||
| 71 |
Econic Partners US, LLC
Top agencies
|
$500,000 | ||
| 72 | $500,000 | |||
| 73 | $500,000 | |||
| 74 |
Lakind Associates, LLC
Top agencies
|
$499,455 | ||
| 75 | $492,645 | |||
| 76 | $482,222 | |||
| 77 | $480,944 | |||
| 78 | $479,914 | |||
| 79 |
James Tyler Leverty
Top agencies
|
$469,339 | ||
| 80 | $467,038 | |||
| 81 |
Coherent Economics LLC
Top agencies
|
$458,715 | ||
| 82 |
Taylor & Mulder Inc
Top agencies
|
$453,916 | ||
| 83 |
Robert M. Hall
Top agencies
|
$452,340 | ||
| 84 | $437,210 | |||
| 85 |
WD Forensic Inc.
Top agencies
|
$435,137 | ||
| 86 |
Halpern, Joseph
Top agencies
|
$433,539 | ||
| 87 | $430,402 | |||
| 88 |
Landmark Research Group LLC
Top agencies
|
$425,000 | ||
| 89 | $418,000 | |||
| 90 |
C2 Alaska, LLC
Top agencies
|
$409,303 | ||
| 91 |
The Kenrich Group, LLC
Top agencies
|
$400,633 | ||
| 92 |
BGC Partners L.P.
Top agencies
|
$400,000 | ||
| 93 | $397,082 | |||
| 94 |
Empower AI, Inc.
Top agencies
|
$395,283 | ||
| 95 | $379,410 | |||
| 96 |
Jeffrey F. Rayport
Top agencies
|
$375,250 | ||
| 97 | $371,072 | |||
| 98 |
Laboratory Corporation of America
Top agencies
|
$369,680 | ||
| 99 |
Cowan & Associates Inc.
Top agencies
|
$368,639 | ||
| 100 |
Ronald J Erickson
Top agencies
|
$366,000 |
Show 75 more
100 of 770 contractors listed here. See the rest on GovTribe.
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 $327 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. 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.
- Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
- Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
- 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 PSC R424 contractors in FY2025?
1. Georgia TECH Applied Research Corp ($24.7M), 2. Bates White, LLC ($16.7M), 3. The Brattle Group Inc ($14.8M), 4. Emcube Inc. ($12.4M), 5. FTI Consulting, Inc. ($12.1M), 6. Analysis Group Inc. ($9.49M), 7. Berkeley Research Group, LLC ($7.61M), 8. Keystone Strategy LLC ($6.48M), 9. Morgan, Angel, Brigham & Associates L.L.C. ($4.3M), 10. Gradco LLC ($3.76M).
On GovTribe
Research every contractor on this list
- Every contract, task order and IDV they hold
- Their subsidiaries, teammates and competitors
- Open opportunities they're positioned for
- Alerts when they win new work