Top 100 Contractors in NAICS 54133: Engineering Services, 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 54133: Engineering Services, FY2025.

The top 10 won 41% of NAICS 54133 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$54,104,594,207 Net of deobligations, by contracts coded NAICS 54133 or a code under it
Contractors
2,697 Parent companies with an obligation
Largest contractor
General Dynamics Corporation $9.45 billion, 16.3% 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
General Dynamics Corporation 17 awardees, including Electric Boat Corporation, General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc.
Top agencies
$9,448,071,031
Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2
RTX Corporation 71 awardees, including Raytheon Company, Rockwell Collins, Inc. and Raytheon Southeast Asia Systems Company
Top agencies
$2,360,955,162
Rank history: #2 in FY2021, #2 in FY2022, #3 in FY2023, #4 in FY2024 and #3 in FY2025; up 2 since Aug 2024–Jul 2025.
3
Lockheed Martin Corporation 31 awardees
Top agencies
$1,899,069,037
Rank history: #4 in FY2021, #5 in FY2022, #5 in FY2023, #2 in FY2024 and #2 in FY2025; up 2 since Aug 2024–Jul 2025.
4
Booz Allen Hamilton Holding Corporation 4 awardees, including Booz Allen Hamilton Inc. and Prologic, Inc.
Top agencies
$1,771,512,205
Rank history: #5 in FY2021, #4 in FY2022, #2 in FY2023, #3 in FY2024 and #4 in FY2025; down 2 since Aug 2024–Jul 2025.
5
Northrop Grumman Systems Corporation 35 awardees
Top agencies
$1,615,799,900
Rank history: #3 in FY2021, #3 in FY2022, #4 in FY2023, #5 in FY2024 and #5 in FY2025; down 2 since Aug 2024–Jul 2025.
6
BAE Systems 18 awardees, including BAE Systems Technology Solutions & Services Inc., BAE Systems Land & Armaments L.P. and BAE Systems Information and Electronic Systems Integration Inc.
Top agencies
$1,553,672,277
Rank history: #10 in FY2021, #9 in FY2022, #6 in FY2023, #6 in FY2024 and #6 in FY2025; unchanged since Aug 2024–Jul 2025.
7
Science Applications International Corporation
Top agencies
$1,524,421,562
Rank history: #7 in FY2021, #7 in FY2022, #8 in FY2023, #7 in FY2024 and #8 in FY2025; unchanged since Aug 2024–Jul 2025.
8
Tcom, L.P.
Top agencies
$1,449,573,858
Rank history: #44 in FY2021, #43 in FY2022, #47 in FY2023, #40 in FY2024 and #7 in FY2025; up 32 since Aug 2024–Jul 2025.
9
CACI International Inc. 4 awardees, including Caci, Inc. - Federal and Caci Nss, LLC
Top agencies
$1,154,858,483
Rank history: #8 in FY2021, #11 in FY2022, #9 in FY2023, #9 in FY2024 and #10 in FY2025; unchanged since Aug 2024–Jul 2025.
10
Amentum Holdings, Inc. 11 awardees, including Amentum Services, Inc., JT4 LLC and Amentum Technology, Inc.
Top agencies
$1,147,718,950
Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #9 in FY2025; down 2 since Aug 2024–Jul 2025.
11
The Boeing Company 18 awardees, including Insitu, Inc.
Top agencies
$1,028,564,938
Rank history: #13 in FY2021, #8 in FY2022, #11 in FY2023, #8 in FY2024 and #11 in FY2025; down 1 since Aug 2024–Jul 2025.
12
Leidos Holdings, Inc. 15 awardees, including Leidos, Inc., Dynetics, Inc. and Stantec GS - WSP JV
Top agencies
$894,181,400
Rank history: #9 in FY2021, #12 in FY2022, #12 in FY2023, #11 in FY2024 and #12 in FY2025; unchanged since Aug 2024–Jul 2025.
13
Huntington Ingalls Industries, Inc. 8 awardees, including HII Mission Technologies Corp, HII Technical Solutions Corporation and Huntington Ingalls Inc.
Top agencies
$748,908,621
Rank history: #20 in FY2021, #16 in FY2022, #14 in FY2023, #10 in FY2024 and #14 in FY2025; down 2 since Aug 2024–Jul 2025.
14
The Charles Stark Draper Laboratory, Inc.
Top agencies
$638,875,642
Rank history: #33 in FY2021, #32 in FY2022, #28 in FY2023, #14 in FY2024 and #21 in FY2025; down 1 since Aug 2024–Jul 2025.
15
Serco Inc 2 awardees
Top agencies
$632,927,432
Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #15 in FY2024 and #15 in FY2025; unchanged since Aug 2024–Jul 2025.
16
L3Harris Technologies, Inc. 21 awardees, including L3Harris Interstate Electronics Corporation, L3 Technologies, Inc. and L3Harris Technologies Integrated Systems L.P.
Top agencies
$594,255,305
Rank history: #6 in FY2021, #6 in FY2022, #7 in FY2023, #13 in FY2024 and #13 in FY2025; up 2 since Aug 2024–Jul 2025.
17
V2X, Inc. 5 awardees, including V2X Aerospace LLC, V2X Systems LLC and Vectrus Systems LLC
Top agencies
$531,548,352
Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #20 in FY2025; up 4 since Aug 2024–Jul 2025.
18
Astrion Group, LLC 4 awardees, including Beyond New Horizons, LLC and Oasis Systems, LLC
Top agencies
$513,569,051
Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19
Scientific Research Corporation
Top agencies
$368,776,020
Rank history: #21 in FY2021, #26 in FY2022, #22 in FY2023, #24 in FY2024 and #22 in FY2025; up 4 since Aug 2024–Jul 2025.
20
Tetra Tech, Inc. 31 awardees, including LS Technologies LLC, Halvik LLC and Advanced Management Technology, Inc.
Top agencies
$361,268,075
Rank history: #26 in FY2021, #21 in FY2022, #23 in FY2023, #22 in FY2024 and #19 in FY2025; unchanged since Aug 2024–Jul 2025.
21
AECOM 22 awardees, including AECOM Technical Services, Inc., AECOM Services, LLC and AECOM International Inc.
Top agencies
$332,936,178
Rank history: #12 in FY2021, #10 in FY2022, #10 in FY2023, #21 in FY2024 and #23 in FY2025; up 60 since Aug 2024–Jul 2025.
22
Systems Planning and Analysis, Inc. 4 awardees, including Prkk LLC and Group W Inc.
Top agencies
$328,667,938
Rank history: #74 in FY2021, #66 in FY2022, #61 in FY2023, #37 in FY2024 and #27 in FY2025; up 10 since Aug 2024–Jul 2025.
23
Jacobs Engineering Group Inc. 22 awardees, including Jacobs Government Services Company, Jacobs / B&V, A Joint Venture (Federal Services) and Jacobs BV A Joint Venture
Top agencies
$323,629,869
Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #29 in FY2025; up 6 since Aug 2024–Jul 2025.
24
Noblis, Inc. 2 awardees, including Noblis MSD LLC
Top agencies
$308,733,333
Rank history: #37 in FY2021, #24 in FY2022, #19 in FY2023, #30 in FY2024 and #26 in FY2025; up 14 since Aug 2024–Jul 2025.
25
Parsons Corporation 5 awardees, including Parsons Government Services Inc., Parsons Technical Services Inc. and Altamira Technologies Corp
Top agencies
$290,890,563
Rank history: #35 in FY2021, #38 in FY2022, #24 in FY2023, #27 in FY2024 and #24 in FY2025; up 3 since Aug 2024–Jul 2025.
26
Deloitte Through Deloitte Consulting LLP
Top agencies
$275,952,002
Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #34 in FY2025; up 5 since Aug 2024–Jul 2025.
27
Peraton Inc.
Top agencies
$271,819,963
Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #16 in FY2025; down 13 since Aug 2024–Jul 2025.
28
ManTech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc.
Top agencies
$233,869,569
Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #30 in FY2025; down 2 since Aug 2024–Jul 2025.
29
BWX Technologies, Inc. Through Bwxt Enrichment Operations, LLC
Top agencies
$230,377,952
Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30
Guidehouse Inc. 5 awardees, including Peraton Inc., Peraton Technology Services Inc. and Aptim Federal Services, LLC
Top agencies
$219,782,203
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31
Arctic Slope Regional Corporation 10 awardees, including Asrc Federal Advanced Research, LLC, Netcentric Technology, LLC and Agile Decision Sciences, LLC
Top agencies
$216,065,987
Rank history: #56 in FY2021, #53 in FY2022, #59 in FY2023, #46 in FY2024 and #31 in FY2025; up 16 since Aug 2024–Jul 2025.
32
Reliance Test & Technology, LLC
Top agencies
$207,806,852
Rank history: #41 in FY2021, #31 in FY2022, #33 in FY2023, #33 in FY2024 and #33 in FY2025; up 7 since Aug 2024–Jul 2025.
33
Ukpeagvik Inupiat Corporation 8 awardees, including Bowhead Program Management & Operations, LLC, Bowhead Weapons Development Solutions LLC and Bowhead Enterprise, Science and Technology, LLC
Top agencies
$206,414,410
Rank history: #83 in FY2021, not on the FY2022–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34
KBR Wyle Services LLC 5 awardees, including KBR Services, LLC
Top agencies
$203,879,850
Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #25 in FY2025; down 10 since Aug 2024–Jul 2025.
35
DCS Corporation
Top agencies
$192,070,286
Rank history: #40 in FY2021, #35 in FY2022, #40 in FY2023, #34 in FY2024 and #32 in FY2025; down 2 since Aug 2024–Jul 2025.
36
Ameresco Inc. 2 awardees
Top agencies
$177,084,967
Rank history: #71 in FY2021, #45 in FY2022, #54 in FY2023, #73 in FY2024 and #17 in FY2025; down 20 since Aug 2024–Jul 2025.
37
Trax International Corporation
Top agencies
$174,756,610
Rank history: #52 in FY2021, #49 in FY2022, #52 in FY2023, #45 in FY2024 and #39 in FY2025; up 12 since Aug 2024–Jul 2025.
38
Kbr, Inc. 5 awardees, including KBR Wyle Services, LLC and Linquest Corporation
Top agencies
$171,637,013
Rank history: #16 in FY2021, #18 in FY2022, #18 in FY2023, #100 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
39
Hdr, Inc. 35 awardees, including HDR Environmental, Operations and Construction, Inc., HDR Architecture, Inc. and HDR Engineering, Inc.
Top agencies
$165,697,758
Rank history: #28 in FY2021, #23 in FY2022, #31 in FY2023, #42 in FY2024 and #38 in FY2025; up 5 since Aug 2024–Jul 2025.
40
Qinetiq Inc. 2 awardees, including Avantus Federal LLC
Top agencies
$165,641,885
Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41
Fidelity Technologies Corporation Through Fidelity Technology Services, LLC
Top agencies
$162,542,340
Rank history: #97 in FY2021, #58 in FY2022, #56 in FY2023, #41 in FY2024 and #45 in FY2025; up 7 since Aug 2024–Jul 2025.
42
Analex Corporation 2 awardees, including Rite-Solutions, Inc.
Top agencies
$162,540,645
Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 114 since Aug 2024–Jul 2025.
43
Cherokee Nation 9 awardees, including Cherokee Nation Strategic Programs, L.L.C., Cherokee Nation Government Solutions, L.L.C. and Hesfp, LLC
Top agencies
$158,806,464
Rank history: #57 in FY2021, #61 in FY2022, #46 in FY2023, not on the FY2024 list and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44
Applied Research Associates, Inc.
Top agencies
$151,112,495
Rank history: not on the FY2021 list, #39 in FY2022, #34 in FY2023, #38 in FY2024 and #47 in FY2025; down 1 since Aug 2024–Jul 2025.
45
Modern Technology Solutions, Inc.
Top agencies
$142,996,761
Rank history: not on the FY2021–FY2025 lists; up 314 since Aug 2024–Jul 2025.
46
The Mitre Corporation 2 awardees
Top agencies
$142,654,362
Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; up 4 since Aug 2024–Jul 2025.
47
M.c. Dean, Inc.
Top agencies
$138,019,427
Rank history: #79 in FY2021, #52 in FY2022, #58 in FY2023, #56 in FY2024 and #51 in FY2025; up 7 since Aug 2024–Jul 2025.
48
Precise Systems, Inc. 3 awardees, including Excet, LLC
Top agencies
$134,007,307
Rank history: #60 in FY2021, #48 in FY2022, #45 in FY2023, #44 in FY2024 and #49 in FY2025; up 15 since Aug 2024–Jul 2025.
49
Credence Dynamo Solutions LLC
Top agencies
$133,793,408
Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #43 in FY2025; down 7 since Aug 2024–Jul 2025.
50
LMI Consulting, LLC
Top agencies
$131,696,393
Rank history: not on the FY2021 list, #33 in FY2022, #44 in FY2023, #29 in FY2024 and #35 in FY2025; down 14 since Aug 2024–Jul 2025.
51
Resource Management Concepts, Inc.
Top agencies
$130,721,610
Rank history: not on the FY2021 list, #96 in FY2022, #70 in FY2023, #74 in FY2024 and #48 in FY2025; up 7 since Aug 2024–Jul 2025.
52
Burns & Mcdonnell, Inc. 3 awardees, including Burns & Mcdonnell Engineering Company, Inc.
Top agencies
$128,663,521
Rank history: #46 in FY2021, #47 in FY2022, #38 in FY2023, #95 in FY2024 and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
53
The Johns Hopkins University Applied Physics Laboratory LLC
Top agencies
$127,483,532
Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54
Apogee Engineering, LLC
Top agencies
$119,334,704
Rank history: #45 in FY2021, #60 in FY2022, not on the FY2023 list, #80 in FY2024 and #66 in FY2025; up 20 since Aug 2024–Jul 2025.
55
Honeywell International Inc. 5 awardees, including Honeywell Building Solutions SES Corp
Top agencies
$117,451,569
Rank history: #51 in FY2021, #44 in FY2022, #48 in FY2023, not on the FY2024 list and #46 in FY2025; down 4 since Aug 2024–Jul 2025.
56
Miracle Systems LLC
Top agencies
$116,533,285
Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #60 in FY2025; up 13 since Aug 2024–Jul 2025.
57
American Systems Corporation 3 awardees, including Epsilon Inc.
Top agencies
$109,911,184
Rank history: #59 in FY2021, #88 in FY2022, #66 in FY2023, #72 in FY2024 and #75 in FY2025; up 26 since Aug 2024–Jul 2025.
58
Mele Associates Inc.
Top agencies
$105,756,003
Rank history: not on the FY2021 list, #100 in FY2022, #79 in FY2023, #68 in FY2024 and #58 in FY2025; up 13 since Aug 2024–Jul 2025.
59
Bristol Bay Native Corporation 9 awardees, including STS Systems Defense LLC, STS Government Solutions, LLC and STS Systems Support, LLC
Top agencies
$103,553,460
Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60
Sayres and Associates LLC 3 awardees, including Global Systems Technologies, LLC and Joint Research and Development LLC
Top agencies
$100,849,870
Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 55 since Aug 2024–Jul 2025.
61
Asgn Incorporated Through ECS Federal, LLC
Top agencies
$99,643,650
Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 45 since Aug 2024–Jul 2025.
62
Atlas Technologies Inc.
Top agencies
$97,711,564
Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #62 in FY2025; up 6 since Aug 2024–Jul 2025.
63
Nana Regional Corporation, Inc. 6 awardees, including Rivertech LLC, Akima Systems Engineering LLC and Akima Mission Optimization LLC
Top agencies
$97,342,644
Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 395 since Aug 2024–Jul 2025.
64
Strategic Alliance Solutions LLC
Top agencies
$94,216,244
Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #71 in FY2025; up 15 since Aug 2024–Jul 2025.
65
Systems Application & Technologies Inc. 2 awardees, including Southwest Range Services LLC
Top agencies
$89,408,297
Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66
Chartis Consulting Corporation
Top agencies
$89,007,240
Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 112 since Aug 2024–Jul 2025.
67
Noresco, LLC
Top agencies
$87,727,391
Rank history: not on the FY2021–FY2025 lists; up 15 since Aug 2024–Jul 2025.
68
Seacorp, LLC
Top agencies
$87,686,644
Rank history: not on the FY2021 list, #87 in FY2022, #90 in FY2023, #81 in FY2024 and #77 in FY2025; up 20 since Aug 2024–Jul 2025.
69
Digiflight Incorporated
Top agencies
$87,452,375
Rank history: not on the FY2021–FY2022 lists, #84 in FY2023, not on the FY2024 list and #89 in FY2025; up 35 since Aug 2024–Jul 2025.
70
Chugach Alaska Corporation 2 awardees, including Vector Planning & Services LLC and Chugach Dynamic Solutions LLC
Top agencies
$84,727,284
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71
ITC Defense Corp
Top agencies
$83,918,729
Rank history: not on the FY2021–FY2025 lists; up 93 since Aug 2024–Jul 2025.
72
Gryphon Technologies L.C.
Top agencies
$83,684,662
Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #65 in FY2025; down 5 since Aug 2024–Jul 2025.
73
Torch Technologies Inc.
Top agencies
$83,191,494
Rank history: #34 in FY2021, #37 in FY2022, #36 in FY2023, #58 in FY2024 and #67 in FY2025; up 2 since Aug 2024–Jul 2025.
74
Sev1Tech, LLC
Top agencies
$82,538,871
Rank history: not on the FY2021–FY2025 lists; up 154 since Aug 2024–Jul 2025.
75
Simventions Inc.
Top agencies
$81,579,353
Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #87 in FY2024 and #76 in FY2025; up 10 since Aug 2024–Jul 2025.
76
Govcio, LLC Through Salient Crgt, Inc.
Top agencies
$79,695,403
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77
Red Cedar Usa, LLC Through KMS Solutions, LLC
Top agencies
$78,371,832
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78
Mayvin, Inc.
Top agencies
$78,249,699
Rank history: not on the FY2021 list, #64 in FY2022, #62 in FY2023, #66 in FY2024 and #57 in FY2025; down 12 since Aug 2024–Jul 2025.
79
The Chenega Corporation 13 awardees, including Native Technology Solutions, LLC, Chenega Enterprise Systems & Solutions, LLC and Chenega It Enterprise Services, LLC
Top agencies
$77,197,754
Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Aug 2024–Jul 2025.
80
Indus Technology Inc.
Top agencies
$77,168,030
Rank history: not on the FY2021–FY2022 lists, #77 in FY2023, #78 in FY2024 and #86 in FY2025; up 9 since Aug 2024–Jul 2025.
81
Sigma Defense Systems LLC 2 awardees, including Juno Technologies, LLC
Top agencies
$76,211,790
Rank history: not on the FY2021–FY2022 lists, #57 in FY2023, not on the FY2024 list and #88 in FY2025; up 16 since Aug 2024–Jul 2025.
82
Stantec Inc. 23 awardees, including Stantec Consulting Services Inc., Stantec-Aecom Siop JV and Stantec GS Inc.
Top agencies
$75,705,330
Rank history: not on the FY2021–FY2022 lists, #73 in FY2023, not on the FY2024 list and #82 in FY2025; up 11 since Aug 2024–Jul 2025.
83
CAE Inc. 2 awardees, including CAE USA Inc.
Top agencies
$74,316,754
Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2024–FY2025 lists; up 92 since Aug 2024–Jul 2025.
84
Johnson Controls Federal Systems, LLC 3 awardees, including Johnson Controls Government Systems, LLC, Johnson Controls Navy Systems, LLC and Johnson Controls Building Automation Systems, LLC
Top agencies
$73,878,294
Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85
Spalding Consulting Inc.
Top agencies
$73,203,150
Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #79 in FY2025; down 8 since Aug 2024–Jul 2025.
86
Delta Solutions & Strategies LLC
Top agencies
$70,604,841
Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #92 in FY2025; up 24 since Aug 2024–Jul 2025.
87
Vsolvit LLC
Top agencies
$70,443,739
Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 15 since Aug 2024–Jul 2025.
88
Cherokee Nation Strategic Programs, L.L.C.
Top agencies
$69,807,751
Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and not on the FY2025 list; down 36 since Aug 2024–Jul 2025.
89
Stracon Services Group LLC
Top agencies
$68,945,877
Rank history: not on the FY2021–FY2025 lists; down 5 since Aug 2024–Jul 2025.
90
Valiant Global Defense Services Inc.
Top agencies
$68,375,169
Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #52 in FY2025; down 35 since Aug 2024–Jul 2025.
91
Global C2 Integration Technologies LLC
Top agencies
$68,288,640
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92
RWE Clean Energy Solutions, Inc.
Top agencies
$67,293,250
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93
W R Systems Ltd.
Top agencies
$66,549,147
Rank history: not on the FY2021–FY2025 lists; up 58 since Aug 2024–Jul 2025.
94
Ch2M Hill, Inc.
Top agencies
$66,254,465
Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #95 in FY2025; down 8 since Aug 2024–Jul 2025.
95
Cherokee Nation Red Wing, L.L.C. 2 awardees, including Cherokee Strategic Solutions, L.L.C.
Top agencies
$63,762,100
Rank history: not on the FY2021–FY2025 lists; up 320 since Aug 2024–Jul 2025.
96
Bering Straits Native Corporation 6 awardees, including Pololei Solutions, LLC, Arcticom, LLC and Bering Straits Professional Services, LLC
Top agencies
$63,589,249
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97
Agile JV, LLC
Top agencies
$62,929,688
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98
Mclaughlin Research Corporation
Top agencies
$62,869,425
Rank history: #94 in FY2021, #99 in FY2022, not on the FY2023–FY2024 lists and #97 in FY2025; down 6 since Aug 2024–Jul 2025.
99
F3Ea Inc.
Top agencies
$62,318,293
Rank history: not on the FY2021–FY2025 lists; up 212 since Aug 2024–Jul 2025.
100
Raytheon / Lockheed Martin Javelin JV
Top agencies
$62,088,562
Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 360 since Aug 2024–Jul 2025.
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100 of 2,697 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 54133

Code Net obligations Largest contractor
541330 Engineering Services $54,104,594,207 General Dynamics Corporation

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 $58 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. 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 54133 contractors in Aug 2025–Jul 2026?

1. General Dynamics Corporation ($9.45B), 2. RTX Corporation ($2.36B), 3. Lockheed Martin Corporation ($1.9B), 4. Booz Allen Hamilton Holding Corporation ($1.77B), 5. Northrop Grumman Systems Corporation ($1.62B), 6. BAE Systems ($1.55B), 7. Science Applications International Corporation ($1.52B), 8. Tcom, L.P. ($1.45B), 9. CACI International Inc. ($1.15B), 10. Amentum Holdings, Inc. ($1.15B).

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