Top 100 Contractors in NAICS 23711: Water and Sewer Line and Related Structures Construction, FY2021

Name: Top 100 Contractors in NAICS 23711: Water and Sewer Line and Related Structures Construction, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 37% of FY2021 NAICS 23711 contract dollars

Contract obligations: $534,863,156 Net of deobligations, by contracts coded NAICS 23711 or a code under it
Contractors: 630 Parent companies with an obligation
Largest contractor: Camp Dresser & Mckee Inc. $67.1 million, 11.9% of obligations
Data as of: Oct 14, 2026

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	Camp Dresser & Mckee Inc. 3 awardees, including CDM Constructors Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) Navy (Department of the Navy)	$67,145,123	11.9%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; up 29 since FY2020.
2	Southland Holdings LLC Through Oscar Renda Contracting Inc. Top agencies DOI (Department of the Interior)	$23,844,075	4.2%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; up 135 since FY2020.
3	The Walsh Group Through Archer Western Construction, LLC Top agencies DOI (Department of the Interior)	$18,474,577	3.3%	Rank history: #3 in FY2022, #7 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
4	City of Marion Top agencies DOI (Department of the Interior)	$16,405,188	2.9%	Rank history: not on the FY2022–FY2023 lists, #95 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
5	CCI Facility Support Services LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$16,248,114	2.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
6	SAK Construction LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) Army (Department of the Army)	$15,556,857	2.8%	Rank history: #10 in FY2022, not on the FY2023 list, #26 in FY2024 and not on the FY2025 list; up 30 since FY2020.
7	Red Point Construction, LLC Top agencies Army (Department of the Army)	$13,353,996	2.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	BB Government Services GMBH Through Porr Government Services Benelux Top agencies Army (Department of the Army)	$12,898,721	2.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	LGC Global, Inc. Top agencies Army (Department of the Army)	$12,847,586	2.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
10	Osborne Construction Co Top agencies Army (Department of the Army)	$11,891,300	2.1%	Rank history: not on the FY2022 list, #39 in FY2023, #99 in FY2024 and not on the FY2025 list; up 40 since FY2020.
11	Kajima Corporation Through Hawaiian Dredging Construction Company, Inc. Top agencies Navy (Department of the Navy)	$11,886,639	2.1%	Rank history: not on the FY2022 list, #17 in FY2023 and not on the FY2024–FY2025 lists; up 73 since FY2020.
12	Metawater Co., Ltd. Through Wigen Companies, Inc. Top agencies Navy (Department of the Navy)	$8,957,711	1.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Puyenpa Services, LLC Top agencies Navy (Department of the Navy)	$8,548,377	1.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Grimmer Construction Inc. Top agencies Army (Department of the Army)	$7,873,737	1.4%	Rank history: #37 in FY2022, #26 in FY2023, #44 in FY2024 and #63 in FY2025; up 17 since FY2020.
15	All State Construction Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$7,741,000	1.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
16	KWR Construction Inc. Top agencies Army (Department of the Army)	$7,377,915	1.3%	Rank history: #19 in FY2022, not on the FY2023 list, #37 in FY2024 and not on the FY2025 list; up 137 since FY2020.
17	Hampton Roads Mechanical of Virginia, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,199,280	1.3%	Rank history: #18 in FY2022, #19 in FY2023, #10 in FY2024 and #8 in FY2025; down 4 since FY2020.
18	American Contracting & Environmental Services, Incorporated Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$6,431,446	1.1%	Rank history: not on the FY2022–FY2025 lists; up 40 since FY2020.
19	CCI Facility Contractors, LLC 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army)	$6,056,879	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	Aptim-North Wind Construction JV LLC Top agencies DOE (Department of Energy)	$5,933,500	1.0%	Rank history: #22 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; down 17 since FY2020.
21	Aqua Engineers Inc. Top agencies Army (Department of the Army)	$5,810,658	1.0%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
22	Bairco Construction Inc. Top agencies DOI (Department of the Interior)	$5,622,217	1.0%	Rank history: #50 in FY2022, #40 in FY2023, #24 in FY2024 and not on the FY2025 list; unchanged since FY2020.
23	MC2 Engineering and Construction, P.C. Top agencies DOI (Department of the Interior)	$5,452,864	1.0%	Rank history: not on the FY2022 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 410 since FY2020.
24	JMG Constructors LLC Top agencies DOI (Department of the Interior)	$5,257,071	0.9%	Rank history: #32 in FY2022, #22 in FY2023, not on the FY2024 list and #79 in FY2025; up 11 since FY2020.
25	RBV Contracting Inc. Top agencies USAF (Department of the Air Force)	$5,029,800	0.9%	Rank history: not on the FY2022–FY2025 lists; up 287 since FY2020.
26	Frawner Corporation Top agencies Navy (Department of the Navy)	$5,002,680	0.9%	Rank history: #25 in FY2022, not on the FY2023 list, #14 in FY2024 and #42 in FY2025; up 44 since FY2020.
27	Civil Works Contracting LLC Top agencies Army (Department of the Army)	$4,989,211	0.9%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
28	Orcom, A Division of Ortega Companies, Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$4,962,203	0.9%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 172 since FY2020.
29	Brice Engineering, LLC Top agencies USAF (Department of the Air Force)	$4,903,346	0.9%	Rank history: #31 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
30	White Bear Construction, Inc. Top agencies DOI (Department of the Interior)	$4,776,160	0.8%	Rank history: not on the FY2022–FY2023 lists, #78 in FY2024 and not on the FY2025 list; up 366 since FY2020.
31	Central Environmental Inc. Top agencies Navy (Department of the Navy)	$4,705,898	0.8%	Rank history: #16 in FY2022, #45 in FY2023, #20 in FY2024 and #77 in FY2025; down 19 since FY2020.
32	Agbw Corp Top agencies Navy (Department of the Navy)	$4,362,890	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	CPP Construction Co Top agencies Army (Department of the Army)	$3,977,544	0.7%	Rank history: not on the FY2022–FY2025 lists; up 43 since FY2020.
34	Nor-Cal Pump & Well Drilling, Inc. Top agencies Army (Department of the Army)	$3,957,130	0.7%	Rank history: not on the FY2022–FY2025 lists; up 419 since FY2020.
35	Reyes Construction, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,866,002	0.7%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; up 131 since FY2020.
36	Transtar Pipeline and Orion Construction JV Top agencies Navy (Department of the Navy)	$3,714,778	0.7%	Rank history: #34 in FY2022, #16 in FY2023, #22 in FY2024 and not on the FY2025 list; down 22 since FY2020.
37	Rausch Infrastructure LLC Top agencies Army (Department of the Army)	$3,687,000	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Coventina-Gse JV, LLC Top agencies DOI (Department of the Interior) VA (Department of Veterans Affairs)	$3,671,161	0.6%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
39	Afci-Cci JV One LLC Top agencies VA (Department of Veterans Affairs)	$3,593,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Native American Services Corp. Top agencies USAF (Department of the Air Force)	$3,572,700	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Sygnos Inc. Top agencies Navy (Department of the Navy)	$3,529,312	0.6%	Rank history: #24 in FY2022, #31 in FY2023, #32 in FY2024 and #36 in FY2025; down 7 since FY2020.
42	Paramount Construction Group, LLC Top agencies VA (Department of Veterans Affairs)	$3,359,704	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Delta Well & Pump Co., Inc. Top agencies DOI (Department of the Interior)	$3,285,000	0.6%	Rank history: not on the FY2022–FY2023 lists, #84 in FY2024 and not on the FY2025 list; up 83 since FY2020.
44	Norair Engineering Corp Top agencies Army (Department of the Army)	$3,256,578	0.6%	Rank history: #27 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 193 since FY2020.
45	Prime One Group General Trading and Contracting Company WLL Top agencies USAF (Department of the Air Force)	$3,177,863	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Gecms, Inc. Top agencies VA (Department of Veterans Affairs)	$3,128,316	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Bethel-Garney Federal JV Top agencies Navy (Department of the Navy)	$3,037,747	0.5%	Rank history: #8 in FY2022, #89 in FY2023, #100 in FY2024 and not on the FY2025 list; down 36 since FY2020.
48	Bizsolutions 360 Inc. Top agencies USAID (US Agency for International Development)	$2,907,799	0.5%	Rank history: not on the FY2022–FY2025 lists; down 33 since FY2020.
49	Turner & Turner Contracting, LLC Top agencies USAF (Department of the Air Force)	$2,898,930	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Ahtna Engineering Services, LLC Top agencies DOI (Department of the Interior)	$2,736,905	0.5%	Rank history: not on the FY2022–FY2025 lists; up 317 since FY2020.
51	Yokomizo Tokoten Co., Ltd. Top agencies Army (Department of the Army)	$2,609,324	0.5%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
52	Etolin Strait Development Group, LLC Top agencies Army (Department of the Army)	$2,578,697	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	GVC Construction and Engineering Inc. Through GVC Construction, Inc. Top agencies Navy (Department of the Navy)	$2,469,958	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	Filanc-Orion Joint Venture Top agencies Navy (Department of the Navy)	$2,349,823	0.4%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
55	Fred M. Luth and Sons, Inc. Top agencies Army (Department of the Army)	$2,259,535	0.4%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
56	Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit Through Bundesministerium FÜR Umwelt, Naturschutz UND Reaktorsicherheit Top agencies Army (Department of the Army)	$2,218,783	0.4%	Rank history: #97 in FY2022, not on the FY2023–FY2024 lists and #67 in FY2025; new, not ranked in FY2020.
57	Simerson Construction LLC Top agencies DOI (Department of the Interior)	$2,064,139	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Medvolt, LLC Top agencies Army (Department of the Army)	$2,055,549	0.4%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; down 4 since FY2020.
59	Weeminuche Construction Authority Through WCA Construction, LLC Top agencies DOI (Department of the Interior)	$1,981,352	0.4%	Rank history: #5 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
60	Nova Group Inc. Top agencies Navy (Department of the Navy)	$1,903,765	0.3%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
61	Arrow Indian Contractors, Inc. Top agencies Army (Department of the Army)	$1,869,944	0.3%	Rank history: not on the FY2022 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
62	S&B Christ Consulting, LLC Top agencies Army (Department of the Army)	$1,863,337	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Goldbelt Operations Support Services LLC Top agencies HHS (Department of Health and Human Services)	$1,823,598	0.3%	Rank history: #61 in FY2022, #62 in FY2023, #76 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
64	Epik International Inc. Top agencies DOS (Department of State)	$1,781,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Lahi LLC Top agencies DOI (Department of the Interior)	$1,775,308	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Manolis Painting, Inc. Top agencies DOE (Department of Energy)	$1,738,500	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Ama Diversified Construction Group 2 awardees Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$1,729,452	0.3%	Rank history: not on the FY2022 list, #87 in FY2023, not on the FY2024 list and #74 in FY2025; down 24 since FY2020.
68	APC Construction LLC Top agencies Navy (Department of the Navy)	$1,676,716	0.3%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
69	LGS Plumbing, Inc. Top agencies Army (Department of the Army)	$1,671,441	0.3%	Rank history: not on the FY2022 list, #80 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
70	Waldrop Construction Inc. Top agencies USAF (Department of the Air Force)	$1,637,873	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Kissner G C Inc. Top agencies DOI (Department of the Interior)	$1,599,450	0.3%	Rank history: not on the FY2022–FY2024 lists and #57 in FY2025; new, not ranked in FY2020.
72	Sedona Enterprises, Inc. Top agencies Army (Department of the Army)	$1,536,397	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Yerkes South Inc. Top agencies USAF (Department of the Air Force)	$1,536,237	0.3%	Rank history: #90 in FY2022, not on the FY2023 list, #49 in FY2024 and not on the FY2025 list; up 95 since FY2020.
74	Advantix Engineering Corp Top agencies USDA (Department of Agriculture)	$1,520,466	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Loxahatchee River Environmental Control District Top agencies DOI (Department of the Interior)	$1,500,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Diversified Site Services LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$1,447,648	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Southern Ohio Trenching & Excavating Inc. Top agencies USDA (Department of Agriculture)	$1,430,499	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Flagship Contracting Inc. Top agencies Army (Department of the Army)	$1,424,044	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Rehbein Enterprises Inc. Top agencies DOI (Department of the Interior)	$1,375,382	0.2%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
80	Allen Gill Construction Inc. 2 awardees Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$1,293,980	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Brice Civil Constructors, Inc. Top agencies Army (Department of the Army)	$1,278,874	0.2%	Rank history: #68 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
82	Nordstrom Contracting & Consulting Corp Top agencies VA (Department of Veterans Affairs)	$1,194,500	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Advanced Solutions Group, LLC Top agencies DOI (Department of the Interior)	$1,185,077	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Carr Coatings, LLC Top agencies DOI (Department of the Interior)	$1,184,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	General Constructors Inc. of the Quad Cities Top agencies Army (Department of the Army)	$1,178,650	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Copper Mountain Services LLC Top agencies DOI (Department of the Interior)	$1,160,359	0.2%	Rank history: not on the FY2022 list, #59 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
87	Brice Solutions, LLC Top agencies USAF (Department of the Air Force)	$1,157,495	0.2%	Rank history: #11 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
88	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$1,157,364	0.2%	Rank history: not on the FY2022 list, #95 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
89	Walker River Construction, Inc. Top agencies DOI (Department of the Interior)	$1,157,197	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	General Hydronics Utilities LLC Top agencies HHS (Department of Health and Human Services)	$1,136,317	0.2%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
91	DI MEO Brothers, Inc. Top agencies Army (Department of the Army)	$1,123,966	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Jorge Castillo Top agencies USDA (Department of Agriculture)	$1,053,440	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Solid Ground, LLC Top agencies DOI (Department of the Interior)	$999,735	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Excav Services Inc. Top agencies HHS (Department of Health and Human Services)	$995,257	0.2%	Rank history: not on the FY2022–FY2025 lists; up 71 since FY2020.
95	DV Solutions LLC Top agencies DOI (Department of the Interior)	$989,172	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	C & T Excavating Inc. Top agencies HHS (Department of Health and Human Services)	$981,783	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Airys Inc. Top agencies Army (Department of the Army)	$969,390	0.2%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
98	Laforge & Budd Construction Co Inc. Top agencies USDA (Department of Agriculture)	$960,838	0.2%	Rank history: not on the FY2022–FY2025 lists; up 198 since FY2020.
99	Blue World Construction Inc. Top agencies USDA (Department of Agriculture)	$945,710	0.2%	Rank history: not on the FY2022 list, #8 in FY2023, not on the FY2024 list and #93 in FY2025; new, not ranked in FY2020.
100	Native Star Group, Inc. Top agencies USAF (Department of the Air Force)	$923,623	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 630 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 23711

Code	Net obligations	Largest contractor
237110 Water and Sewer Line and Related Structures Construction	$534,863,156	Camp Dresser & Mckee Inc.

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 $565 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

Who were the top 10 NAICS 23711 contractors in FY2021?

1. Camp Dresser & Mckee Inc. ($67.1M), 2. Southland Holdings LLC ($23.8M), 3. The Walsh Group ($18.5M), 4. City of Marion ($16.4M), 5. CCI Facility Support Services LLC ($16.2M), 6. SAK Construction LLC ($15.6M), 7. Red Point Construction, LLC ($13.4M), 8. BB Government Services GMBH ($12.9M), 9. LGC Global, Inc. ($12.8M), 10. Osborne Construction Co ($11.9M).

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