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
Rank history: #29 in FY2021, not on the FY2022–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2 $16,707,181
Rank history: #8 in FY2021, #5 in FY2022, #6 in FY2023 and #2 in FY2024; unchanged since FY2024.
3 $14,777,211
Rank history: #6 in FY2021, #3 in FY2022, #5 in FY2023 and #5 in FY2024; up 2 since FY2024.
4 $12,411,331
Rank history: not on the FY2021–FY2024 lists; new.
5 $12,075,656
Rank history: #7 in FY2021, #11 in FY2022, #9 in FY2023 and #6 in FY2024; up 1 since FY2024.
6 $9,489,285
Rank history: #2 in FY2021, #2 in FY2022, #7 in FY2023 and #4 in FY2024; down 2 since FY2024.
7 $7,606,658
Rank history: #21 in FY2021, #32 in FY2022, #8 in FY2023 and #8 in FY2024; up 1 since FY2024.
8 $6,484,192
Rank history: not on the FY2021 list, #10 in FY2022, #40 in FY2023 and #13 in FY2024; up 5 since FY2024.
9 $4,301,185
Rank history: #13 in FY2021, #14 in FY2022, #21 in FY2023 and #16 in FY2024; up 7 since FY2024.
10
Gradco LLC
$3,755,373
Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 2 since FY2024.
11 $3,291,480
Rank history: not on the FY2021–FY2024 lists; new.
12 $3,177,547
Rank history: not on the FY2021–FY2024 lists; up 127 since FY2024.
13 $2,946,723
Rank history: #27 in FY2021, #65 in FY2022, #42 in FY2023 and #27 in FY2024; up 14 since FY2024.
14 $2,800,791
Rank history: #3 in FY2021, #7 in FY2022, #3 in FY2023 and #3 in FY2024; down 11 since FY2024.
15 $2,324,437
Rank history: not on the FY2021 list, #36 in FY2022, #22 in FY2023 and #18 in FY2024; up 3 since FY2024.
16 $2,233,716
Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 17 since FY2024.
17 $2,133,657
Rank history: not on the FY2021 list, #33 in FY2022, #38 in FY2023 and #32 in FY2024; up 15 since FY2024.
18 $1,980,630
Rank history: #26 in FY2021, #27 in FY2022, #23 in FY2023 and #17 in FY2024; down 1 since FY2024.
19 $1,884,789
Rank history: not on the FY2021 list, #35 in FY2022, #32 in FY2023 and not on the FY2024 list; up 149 since FY2024.
20 $1,818,181
Rank history: #4 in FY2021, #6 in FY2022, #2 in FY2023 and #7 in FY2024; down 13 since FY2024.
21
Litcon Group LLC
$1,778,138
Rank history: #11 in FY2021, #18 in FY2022, #20 in FY2023 and #14 in FY2024; down 7 since FY2024.
22
Cliftonlarsonallen LLP
$1,619,000
Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and not on the FY2024 list; returned.
23 $1,499,777
Rank history: not on the FY2021 list, #26 in FY2022, #16 in FY2023 and #43 in FY2024; up 20 since FY2024.
24 $1,472,421
Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and #35 in FY2024; up 11 since FY2024.
25 $1,442,854
Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and #23 in FY2024; down 2 since FY2024.
26 $1,326,730
Rank history: not on the FY2021–FY2024 lists; up 122 since FY2024.
27 $1,310,483
Rank history: #28 in FY2021, #13 in FY2022, #15 in FY2023 and #11 in FY2024; down 16 since FY2024.
28 $1,277,573
Rank history: #44 in FY2021, not on the FY2022 list, #39 in FY2023 and #34 in FY2024; up 6 since FY2024.
29 $1,272,625
Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #41 in FY2024; up 12 since FY2024.
30 $1,256,853
Rank history: #24 in FY2021, #44 in FY2022, #60 in FY2023 and #46 in FY2024; up 16 since FY2024.
31 $1,247,674
Rank history: #19 in FY2021, #9 in FY2022 and not on the FY2023–FY2024 lists; returned.
32 $1,234,330
Rank history: not on the FY2021–FY2024 lists; new.
33 $1,227,212
Rank history: #31 in FY2021, #92 in FY2022, #49 in FY2023 and #57 in FY2024; up 24 since FY2024.
34 $1,104,047
Rank history: #18 in FY2021, #21 in FY2022, #18 in FY2023 and #20 in FY2024; down 14 since FY2024.
35 $1,101,584
Rank history: #72 in FY2021, #16 in FY2022, #17 in FY2023 and #65 in FY2024; up 30 since FY2024.
36 $1,068,355
Rank history: not on the FY2021 list, #84 in FY2022, #78 in FY2023 and not on the FY2024 list; up 145 since FY2024.
37
Groff Engineering & Consulting PLLC
$1,061,085
Rank history: not on the FY2021–FY2024 lists; up 138 since FY2024.
38 $990,000
Rank history: not on the FY2021–FY2022 lists, #14 in FY2023 and #9 in FY2024; down 29 since FY2024.
39 $959,070
Rank history: #71 in FY2021, not on the FY2022–FY2023 lists and #80 in FY2024; up 41 since FY2024.
40 $901,395
Rank history: not on the FY2021 list, #40 in FY2022 and not on the FY2023–FY2024 lists; returned.
41
Kleinschmidt Associates
$895,703
Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 11 since FY2024.
42 $889,194
Rank history: #14 in FY2021, #24 in FY2022, #12 in FY2023 and #21 in FY2024; down 21 since FY2024.
43
Deloitte 2 awardees, including Deloitte Financial Advisory Services LLP
$883,826
Rank history: not on the FY2021–FY2024 lists; new.
44 $882,678
Rank history: not on the FY2021–FY2024 lists; new.
45 $866,952
Rank history: #41 in FY2021, #90 in FY2022, #66 in FY2023 and #31 in FY2024; down 14 since FY2024.
46 $865,500
Rank history: #5 in FY2021, #4 in FY2022, #4 in FY2023 and not on the FY2024 list; returned.
47 $849,350
Rank history: not on the FY2021–FY2024 lists; new.
48 $821,226
Rank history: not on the FY2021–FY2024 lists; up 270 since FY2024.
49 $786,296
Rank history: not on the FY2021–FY2022 lists, #10 in FY2023 and #10 in FY2024; down 39 since FY2024.
50 $779,167
Rank history: not on the FY2021 list, #72 in FY2022, not on the FY2023 list and #69 in FY2024; up 19 since FY2024.
51 $767,567
Rank history: #40 in FY2021 and not on the FY2022–FY2024 lists; returned.
52 $738,410
Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 4 since FY2024.
53 $717,826
Rank history: not on the FY2021–FY2024 lists; up 327 since FY2024.
54 $712,936
Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #48 in FY2024; down 6 since FY2024.
55 $712,040
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and not on the FY2024 list; up 298 since FY2024.
56 $710,000
Rank history: not on the FY2021 list, #46 in FY2022, #59 in FY2023 and not on the FY2024 list; up 142 since FY2024.
57 $688,894
Rank history: not on the FY2021–FY2024 lists; new.
58 $669,885
Rank history: #93 in FY2021, not on the FY2022 list, #88 in FY2023 and #29 in FY2024; down 29 since FY2024.
59 $648,778
Rank history: not on the FY2021 list, #50 in FY2022, #80 in FY2023 and not on the FY2024 list; returned.
60 $635,030
Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 17 since FY2024.
61 $615,482
Rank history: not on the FY2021 list, #94 in FY2022, #76 in FY2023 and not on the FY2024 list; up 148 since FY2024.
62 $598,275
Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; down 9 since FY2024.
63 $574,433
Rank history: not on the FY2021–FY2024 lists; new.
65 $530,000
Rank history: not on the FY2021–FY2024 lists; up 180 since FY2024.
66 $521,516
Rank history: not on the FY2021–FY2024 lists; up 150 since FY2024.
67 $519,883
Rank history: not on the FY2021–FY2024 lists; up 53 since FY2024.
68 $516,677
Rank history: not on the FY2021–FY2024 lists; up 56 since FY2024.
69 $510,107
Rank history: #10 in FY2021, not on the FY2022–FY2023 lists and #62 in FY2024; down 7 since FY2024.
70 $509,165
Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 44 since FY2024.
71 $500,000
Rank history: not on the FY2021–FY2024 lists; new.
72 $500,000
Rank history: not on the FY2021–FY2024 lists; new.
73 $500,000
Rank history: not on the FY2021–FY2024 lists; new.
74 $499,455
Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 21 since FY2024.
75 $492,645
Rank history: #48 in FY2021, #56 in FY2022, #98 in FY2023 and not on the FY2024 list; up 38 since FY2024.
76 $482,222
Rank history: #75 in FY2021, #77 in FY2022 and not on the FY2023–FY2024 lists; up 47 since FY2024.
77 $480,944
Rank history: not on the FY2021–FY2024 lists; new.
78 $479,914
Rank history: not on the FY2021–FY2024 lists; new.
79 $469,339
Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #60 in FY2024; down 19 since FY2024.
80 $467,038
Rank history: not on the FY2021–FY2024 lists; new.
81
Coherent Economics LLC
$458,715
Rank history: not on the FY2021–FY2024 lists; new.
82
Taylor & Mulder Inc
$453,916
Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and #52 in FY2024; down 30 since FY2024.
83 $452,340
Rank history: not on the FY2021–FY2024 lists; new.
84 $437,210
Rank history: not on the FY2021–FY2024 lists; new.
85 $435,137
Rank history: not on the FY2021–FY2024 lists; up 82 since FY2024.
86 $433,539
Rank history: not on the FY2021–FY2024 lists; up 202 since FY2024.
87 $430,402
Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and not on the FY2024 list; up 15 since FY2024.
88 $425,000
Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; down 64 since FY2024.
89 $418,000
Rank history: not on the FY2021–FY2024 lists; new.
90 $409,303
Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
91 $400,633
Rank history: not on the FY2021–FY2024 lists; new.
92
BGC Partners L.P. Through Newmark Valuation & Advisory, LLC
$400,000
Rank history: not on the FY2021–FY2024 lists; new.
93 $397,082
Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #40 in FY2024; down 53 since FY2024.
94 $395,283
Rank history: not on the FY2021–FY2024 lists; new.
95 $379,410
Rank history: not on the FY2021–FY2024 lists; new.
96 $375,250
Rank history: not on the FY2021–FY2024 lists; new.
97 $371,072
Rank history: not on the FY2021–FY2024 lists; new.
98
Laboratory Corporation of America Through Bode Cellmark Forensics, Inc.
$369,680
Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
99 $368,639
Rank history: not on the FY2021–FY2024 lists; new.
100 $366,000
Rank history: not on the FY2021–FY2024 lists; new.
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).

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