Top 91 Contractors in PSC Z2KA: Repair or Alteration of Dams, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	C.j. Mahan Construction Company, LLC Top agencies Army (Department of the Army)	$66,201,819	21.0%	Rank history: #74 in FY2022, #42 in FY2023, #30 in FY2024 and #6 in FY2025; up 15 since FY2020.
2	Bauer AG Through Bauer Foundation Corp Top agencies Army (Department of the Army)	$36,039,308	11.4%	Rank history: #5 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	C.A.R.P.I. U.S.a. Inc. Top agencies DOI (Department of the Interior)	$31,247,964	9.9%	Rank history: not on the FY2022 list, #29 in FY2023 and not on the FY2024–FY2025 lists; up 59 since FY2020.
4	Ames Construction, Inc. Top agencies DOI (Department of the Interior)	$15,948,000	5.1%	Rank history: #6 in FY2022, #23 in FY2023, not on the FY2024 list and #80 in FY2025; new, not ranked in FY2020.
5	Krew Heavy Civil LLC Top agencies DOI (Department of the Interior)	$15,755,000	5.0%	Rank history: #10 in FY2022, #10 in FY2023, #14 in FY2024 and #40 in FY2025; down 1 since FY2020.
6	Keller North America Inc. Through Bencor Global, Inc. Top agencies Army (Department of the Army)	$9,884,559	3.1%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
7	Odin Environmental Solutions, LLC Top agencies DOI (Department of the Interior)	$9,660,300	3.1%	Rank history: #39 in FY2022, not on the FY2023 list, #73 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
8	Garco Wemco A Joint Venture Top agencies Army (Department of the Army)	$8,202,520	2.6%	Rank history: #45 in FY2022, #9 in FY2023, #29 in FY2024 and #43 in FY2025; new, not ranked in FY2020.
9	Ews-Rsci LLC Top agencies DOI (Department of the Interior)	$7,000,000	2.2%	Rank history: #16 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
10	Drax, Inc. Top agencies Army (Department of the Army)	$5,748,502	1.8%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
11	Northbank Civil and Marine, LLC Top agencies Army (Department of the Army)	$5,552,705	1.8%	Rank history: #30 in FY2022, #8 in FY2023, #6 in FY2024 and #9 in FY2025; down 8 since FY2020.
12	Gana-A' Yoo, Limited Through Kaiyuh Services, LLC Top agencies Army (Department of the Army)	$5,451,991	1.7%	Rank history: #83 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
13	Abhe & Svoboda, Inc. Top agencies Army (Department of the Army)	$5,353,432	1.7%	Rank history: #27 in FY2022, #38 in FY2023, #72 in FY2024 and not on the FY2025 list; up 5 since FY2020.
14	Mcmillen LLC Top agencies Army (Department of the Army)	$5,211,105	1.7%	Rank history: #28 in FY2022, #35 in FY2023, not on the FY2024 list and #7 in FY2025; down 8 since FY2020.
15	Voith Hydro Inc. 2 awardees Top agencies Army (Department of the Army)	$4,949,581	1.6%	Rank history: #12 in FY2022, #40 in FY2023, #15 in FY2024 and #25 in FY2025; up 26 since FY2020.
16	RJS Construction Inc. 2 awardees Top agencies Army (Department of the Army)	$4,826,820	1.5%	Rank history: #67 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2020.
17	Pick Electric, Inc. Top agencies Army (Department of the Army)	$4,760,129	1.5%	Rank history: #24 in FY2022, #20 in FY2023, #28 in FY2024 and #34 in FY2025; down 4 since FY2020.
18	Lillard & Clark Construction Co Inc. Top agencies DOI (Department of the Interior)	$3,955,977	1.3%	Rank history: #17 in FY2022, #14 in FY2023, #43 in FY2024 and #57 in FY2025; new, not ranked in FY2020.
19	Sema Construction Inc. Top agencies DOI (Department of the Interior)	$3,809,310	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	Mccormick Industrial Abatement Services, Inc. Top agencies Army (Department of the Army)	$3,558,280	1.1%	Rank history: #69 in FY2022, #4 in FY2023, #34 in FY2024 and #41 in FY2025; down 10 since FY2020.
21	Structural Group Inc. Through Structural Preservation Systems, LLC Top agencies Army (Department of the Army)	$3,462,129	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	General Electric Company Through GE Renewables US LLC Top agencies Army (Department of the Army)	$3,280,680	1.0%	Rank history: #38 in FY2022, #12 in FY2023, #8 in FY2024 and #4 in FY2025; down 2 since FY2020.
23	Record Steel and Construction, Inc. Top agencies Army (Department of the Army)	$3,037,000	1.0%	Rank history: #18 in FY2022, #36 in FY2023, #49 in FY2024 and #51 in FY2025; new, not ranked in FY2020.
24	Andritz AG Through Andritz Hydro Corp Top agencies Army (Department of the Army)	$2,842,759	0.9%	Rank history: #11 in FY2022, #13 in FY2023, #36 in FY2024 and not on the FY2025 list; down 10 since FY2020.
25	Pontchartrain Partners, LLC Top agencies Army (Department of the Army)	$2,786,408	0.9%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
26	Hartman-Walsh Corp Through Hartman-Walsh Painting Company Top agencies DOI (Department of the Interior)	$2,637,465	0.8%	Rank history: #32 in FY2022, not on the FY2023 list, #25 in FY2024 and #24 in FY2025; up 46 since FY2020.
27	Hoolaulima Government Solutions, LLC Top agencies Army (Department of the Army)	$2,583,072	0.8%	Rank history: #76 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
28	UEI WWFNFCV65M13 Top agencies Army (Department of the Army)	$2,091,500	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
29	BCI Construction Usa, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$1,754,706	0.6%	Rank history: #15 in FY2022, #6 in FY2023, #71 in FY2024 and #20 in FY2025; down 5 since FY2020.
30	Transfluid Services Incorporated Top agencies DOI (Department of the Interior)	$1,700,000	0.5%	Rank history: #35 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
31	NW Construction, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$1,697,976	0.5%	Rank history: #3 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 14 since FY2020.
32	Granite Construction Incorporated Top agencies Army (Department of the Army)	$1,634,011	0.5%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
33	Visu-Sewer of Missouri LLC Top agencies Army (Department of the Army)	$1,423,273	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Power Pro Plus Inc. Top agencies Army (Department of the Army)	$1,417,065	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Ricardo Perez S.a. Through Olsson Industrial Electric, Inc. Top agencies Army (Department of the Army)	$1,280,617	0.4%	Rank history: #8 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; up 39 since FY2020.
36	Emagineered Solutions Inc. Top agencies Army (Department of the Army)	$1,144,672	0.4%	Rank history: #31 in FY2022, not on the FY2023–FY2024 lists and #53 in FY2025; down 1 since FY2020.
37	ESI Contracting, Corp. Top agencies Army (Department of the Army)	$1,116,790	0.4%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
38	Ar6-Cram Roofing JV LLC Top agencies Army (Department of the Army)	$1,106,962	0.4%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	General Constructors Inc. of the Quad Cities Top agencies Army (Department of the Army)	$1,038,346	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; down 32 since FY2020.
40	Koontz Electric Company, Incorporated Top agencies Army (Department of the Army)	$950,169	0.3%	Rank history: #85 in FY2022, not on the FY2023 list, #12 in FY2024 and not on the FY2025 list; down 32 since FY2020.
41	Youderian Construction Inc. Top agencies DOI (Department of the Interior)	$928,865	0.3%	Rank history: #21 in FY2022, #49 in FY2023, #26 in FY2024 and #61 in FY2025; new, not ranked in FY2020.
42	ACU Construction LLC Top agencies Army (Department of the Army)	$909,224	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Patterson Stevens Inc. Top agencies DOT (Department of Transportation)	$839,900	0.3%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
44	Gagne Technical Services Inc. Top agencies Army (Department of the Army)	$837,432	0.3%	Rank history: not on the FY2022–FY2025 lists; up 49 since FY2020.
45	Engineering & Construction Innovations Inc. Top agencies DOI (Department of the Interior)	$765,450	0.2%	Rank history: not on the FY2022 list, #60 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
46	Cherokee Construction Services, LLC Top agencies Army (Department of the Army)	$704,022	0.2%	Rank history: #42 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
47	YOY Inc. Top agencies Army (Department of the Army)	$697,742	0.2%	Rank history: not on the FY2022–FY2025 lists; up 45 since FY2020.
48	Lake Contracting, Inc. Top agencies DOI (Department of the Interior)	$679,208	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Gardner Zemke Co Top agencies Army (Department of the Army)	$664,774	0.2%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
50	Helm Group Inc. Through Civil Constructors, Inc. Top agencies Army (Department of the Army)	$647,367	0.2%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
51	Andritz Hydro Corp Top agencies Army (Department of the Army)	$638,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Cabrera Services Inc. Top agencies Army (Department of the Army)	$603,149	0.2%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
53	Alltech Engineering Corp Top agencies Army (Department of the Army)	$587,050	0.2%	Rank history: #26 in FY2022, #52 in FY2023, #52 in FY2024 and #13 in FY2025; up 12 since FY2020.
54	Young Gun Construction LLC Top agencies DOI (Department of the Interior)	$550,135	0.2%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
55	Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit Through Bundesministerium FÜR Umwelt, Naturschutz UND Reaktorsicherheit Top agencies Army (Department of the Army)	$494,264	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Advanced Solutions Group, LLC Top agencies DOI (Department of the Interior)	$488,916	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Thompson Construction Group Inc. Top agencies Army (Department of the Army)	$468,334	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Chase, Carson & White, L.L.C. Top agencies Army (Department of the Army)	$387,463	0.1%	Rank history: not on the FY2022–FY2023 lists, #85 in FY2024 and not on the FY2025 list; down 18 since FY2020.
59	AECOM Through Shimmick Construction Company, Inc. Top agencies Army (Department of the Army)	$307,788	0.1%	Rank history: #4 in FY2022, #7 in FY2023, #10 in FY2024 and not on the FY2025 list; down 58 since FY2020.
60	Lynn / Cornerstone Holdings, LLC 2 awardees, including AMS Industrial LLC Top agencies Army (Department of the Army)	$250,000	0.1%	Rank history: #44 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; down 37 since FY2020.
61	Netcompliance Environmental Services LLC Top agencies Army (Department of the Army)	$249,432	0.1%	Rank history: #50 in FY2022, not on the FY2023 list, #81 in FY2024 and not on the FY2025 list; up 27 since FY2020.
62	Luedtke Engineering Co Top agencies Army (Department of the Army)	$247,126	0.1%	Rank history: #57 in FY2022, not on the FY2023 list, #86 in FY2024 and not on the FY2025 list; down 47 since FY2020.
63	Obayashi Corporation Through Kraemer North America LLC Top agencies Army (Department of the Army)	$211,483	0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
64	Derian, Inc. Top agencies Army (Department of the Army)	$200,398	0.1%	Rank history: not on the FY2022–FY2023 lists, #83 in FY2024 and not on the FY2025 list; down 26 since FY2020.
65	Lacy Mechanical Inc. Top agencies Army (Department of the Army)	$200,218	0.1%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
66	Cook Inlet Region Inc. Through North Wind Construction Services, LLC Top agencies Army (Department of the Army)	$192,617	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 20 since FY2020.
67	ABB Inc. Top agencies Army (Department of the Army)	$178,609	0.1%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
68	RTS Shearing LLC Top agencies Army (Department of the Army)	$163,270	0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
69	Braun Construction & Design LLC Top agencies Army (Department of the Army)	$161,860	0.1%	Rank history: not on the FY2022 list, #80 in FY2023, not on the FY2024 list and #56 in FY2025; new, not ranked in FY2020.
70	Nadiad Inc. Top agencies Navy (Department of the Navy)	$153,853	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Occi Inc. Top agencies Army (Department of the Army)	$139,528	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Jensen Drilling Company Top agencies Army (Department of the Army)	$128,879	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 41 since FY2020.
73	Husman Environmental & Construction LLC & RC Construction Co Inc A JV Top agencies Army (Department of the Army)	$111,147	<0.1%	Rank history: #47 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; down 21 since FY2020.
74	Harvey Sand & Gravel, Inc. Top agencies Army (Department of the Army)	$85,046	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Steward Machine Co Inc. Top agencies Army (Department of the Army)	$83,170	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Joseph B. Fay Co. Top agencies Army (Department of the Army)	$80,665	<0.1%	Rank history: #62 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; down 71 since FY2020.
77	Tanadgusix Corporation Through TDX Power Services LLC Top agencies DOI (Department of the Interior)	$69,868	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 20 since FY2020.
78	Rod Transport Inc. Top agencies DOI (Department of the Interior)	$67,572	<0.1%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
79	JTR Excavation LLC Top agencies USDA (Department of Agriculture)	$63,882	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
80	Trident Dredging and Marine Construction, LLC Top agencies Army (Department of the Army)	$61,499	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Sievert Electric Service and Sales Company Top agencies Army (Department of the Army)	$56,056	<0.1%	Rank history: not on the FY2022 list, #18 in FY2023, #60 in FY2024 and #49 in FY2025; up 5 since FY2020.
82	Asphalt Plus, Inc. Top agencies USDA (Department of Agriculture)	$51,977	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
83	Flintco LLC Through Alberici Constructors Inc. Top agencies Army (Department of the Army)	$39,180	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 64 since FY2020.
84	Jackson Excavation, Inc. Top agencies USDA (Department of Agriculture)	$38,818	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	G.M. Johnson Companies Inc. Through Occi Inc. Top agencies Army (Department of the Army)	$34,652	<0.1%	Rank history: #80 in FY2022, #5 in FY2023 and not on the FY2024–FY2025 lists; down 64 since FY2020.
86	Houalla Enterprises Ltd. Top agencies Army (Department of the Army)	$27,328	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
87	Sumco Eco-Contracting LLC Top agencies DOI (Department of the Interior)	$24,767	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 55 since FY2020.
88	Groupe Reel Through Reel COH Inc. Top agencies Army (Department of the Army)	$10,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	J.a. Watts, LLC Top agencies Army (Department of the Army)	$9,675	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
90	Environmental Cost Management, Inc. Top agencies USDA (Department of Agriculture)	$8,638	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 29 since FY2020.
91	Pacificfederal-Pacifictech JV 1 LLLP Top agencies Army (Department of the Army)	$920	<0.1%	Rank history: #63 in FY2022, #34 in FY2023, #55 in FY2024 and not on the FY2025 list; down 31 since FY2020.

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 $315 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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