Top 91 Contractors in PSC Z1ND: Maintenance of Sewage and Waste Facilities, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Central Environmental Inc. Top agencies Navy (Department of the Navy)	$1,762,332	11.7%	Rank history: not on the FY2022–FY2023 lists, #20 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
2	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$1,157,364	7.7%	Rank history: #2 in FY2022, #8 in FY2023, #5 in FY2024 and #11 in FY2025; up 2 since FY2020.
3	Orcom, A Division of Ortega Companies, Inc. Top agencies DOI (Department of the Interior)	$1,147,799	7.6%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
4	Al Musairie Trading & Contracting Company -Qatar Top agencies USAF (Department of the Air Force)	$885,000	5.9%	Rank history: #3 in FY2022, #6 in FY2023, #4 in FY2024 and not on the FY2025 list; up 9 since FY2020.
5	Acty Co., Ltd. Top agencies USAF (Department of the Air Force)	$800,536	5.3%	Rank history: not on the FY2022 list, #50 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
6	Meps GMBH Military Effective Projects & Services Through Meps GMBH Top agencies USAF (Department of the Air Force)	$789,012	5.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	Chaparral Construction, Inc. Top agencies DOI (Department of the Interior)	$762,812	5.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	Calderwood Wood Products & Services LLC Top agencies DOI (Department of the Interior)	$695,250	4.6%	Rank history: #21 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	Port Madison Enterprises Construction Corporation Top agencies Navy (Department of the Navy)	$648,936	4.3%	Rank history: #49 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
10	Krätz GMBH Top agencies Army (Department of the Army)	$549,900	3.7%	Rank history: #8 in FY2022, not on the FY2023 list, #12 in FY2024 and #19 in FY2025; unchanged since FY2020.
11	Turner Construction Company Through Sociedad Espanola De Montajes Industriales SA Top agencies Navy (Department of the Navy)	$439,852	2.9%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
12	Hirao, YK Top agencies Navy (Department of the Navy)	$431,596	2.9%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
13	Rod Transport Inc. Top agencies Army (Department of the Army)	$358,005	2.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Singh Operational Services, Inc. Top agencies Smithsonian (Smithsonian Institution)	$355,347	2.4%	Rank history: #18 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
15	Schwarz Construction Llc-K Hayes Limited Joint Venture Top agencies Army (Department of the Army)	$269,957	1.8%	Rank history: #5 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
16	Martinez Services, Inc. Top agencies DOI (Department of the Interior)	$228,106	1.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
17	Pinnacle Construction Development Group, Inc. Top agencies DLA (Defense Logistics Agency)	$181,978	1.2%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
18	Renova Environmental Company Top agencies DOI (Department of the Interior)	$166,880	1.1%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
19	Columbia Pumping & Construction Inc. Top agencies DOI (Department of the Interior)	$156,902	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	KJS MP Joint Venture LLC Top agencies Navy (Department of the Navy)	$149,899	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	Brice Solutions, LLC Top agencies USAF (Department of the Air Force)	$147,062	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Copper Mountain Services LLC Top agencies DOI (Department of the Interior)	$139,000	0.9%	Rank history: not on the FY2022–FY2024 lists and #83 in FY2025; up 5 since FY2020.
23	El Dorado Septic Service, Inc. Top agencies DOI (Department of the Interior)	$135,215	0.9%	Rank history: #19 in FY2022, #92 in FY2023, #32 in FY2024 and #32 in FY2025; up 17 since FY2020.
24	RLA Holdings, Inc. Top agencies USDA (Department of Agriculture)	$130,250	0.9%	Rank history: #11 in FY2022, #19 in FY2023, not on the FY2024 list and #68 in FY2025; new, not ranked in FY2020.
25	Intergrated Construction Management, Inc. Top agencies USAF (Department of the Air Force)	$111,886	0.7%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
26	Paulson Plumbing & Mechanical, LLC Top agencies USAF (Department of the Air Force)	$104,853	0.7%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
27	Eight Co.,Ltd. Top agencies USAF (Department of the Air Force)	$103,331	0.7%	Rank history: #23 in FY2022, #55 in FY2023, #30 in FY2024 and #48 in FY2025; up 7 since FY2020.
28	Natives of Kodiak, Incorporated Through Koman Government Solutions LLC Top agencies Army (Department of the Army)	$102,382	0.7%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
29	Advanced Composting Systems LLC Top agencies DOI (Department of the Interior)	$96,459	0.6%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
30	DOO Beotok Pancevo Top agencies DOS (Department of State)	$95,455	0.6%	Rank history: #22 in FY2022, #33 in FY2023, #31 in FY2024 and #36 in FY2025; down 1 since FY2020.
31	Eric D Duncan Top agencies USDA (Department of Agriculture)	$87,730	0.6%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
32	American West Construction, LLC Top agencies DOI (Department of the Interior)	$81,490	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Plumas Sanitation, Inc. Top agencies USDA (Department of Agriculture)	$76,795	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Clogbusters Underground Technologies, Inc. Top agencies Army (Department of the Army)	$76,024	0.5%	Rank history: #20 in FY2022, #28 in FY2023, #29 in FY2024 and #35 in FY2025; up 4 since FY2020.
35	D and H Oil & Gas Services LLC Top agencies DHS (Department of Homeland Security)	$69,713	0.5%	Rank history: #26 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
36	Sierras Construction, LLC Top agencies Navy (Department of the Navy)	$67,391	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Thomas Refuse Service Inc. Top agencies USDA (Department of Agriculture)	$59,723	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Msab, LLC Top agencies DOI (Department of the Interior)	$54,495	0.4%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	Wwss Associates Inc. Top agencies USAF (Department of the Air Force)	$48,980	0.3%	Rank history: #25 in FY2022, #39 in FY2023, #41 in FY2024 and #49 in FY2025; new, not ranked in FY2020.
40	Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit Through Bundesministerium FÜR Umwelt, Naturschutz UND Reaktorsicherheit Top agencies Army (Department of the Army)	$48,462	0.3%	Rank history: not on the FY2022 list, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
41	Core Contracting Group Top agencies DOI (Department of the Interior)	$47,335	0.3%	Rank history: not on the FY2022–FY2025 lists; down 24 since FY2020.
42	Zunich Brothers Mechanical, LLC Top agencies USDA (Department of Agriculture)	$47,175	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Yale Creek Inc. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$46,323	0.3%	Rank history: not on the FY2022–FY2024 lists and #13 in FY2025; up 7 since FY2020.
44	4RB Coopers LLC Top agencies USDA (Department of Agriculture)	$45,000	0.3%	Rank history: #24 in FY2022, #35 in FY2023, #34 in FY2024 and #38 in FY2025; new, not ranked in FY2020.
45	Engineered Services, Inc. Top agencies Navy (Department of the Navy)	$42,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Danaher Corporation Through Hach Company Top agencies Navy (Department of the Navy)	$36,401	0.2%	Rank history: not on the FY2022 list, #44 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
47	Coburn Contractors, LLC Top agencies VA (Department of Veterans Affairs)	$36,158	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Rinker Environmental Services, LLC Top agencies Army (Department of the Army)	$34,500	0.2%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
49	Preferred Septic & Disposal, Inc. Top agencies USDA (Department of Agriculture)	$34,394	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	MDR Construction Company, Inc. Top agencies VA (Department of Veterans Affairs)	$33,838	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Integrity Service Company, LLC Top agencies USDA (Department of Agriculture)	$30,729	0.2%	Rank history: #43 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
52	A & L Cesspool Service Corp. Top agencies VA (Department of Veterans Affairs) Smithsonian (Smithsonian Institution)	$29,975	0.2%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
53	Pro Kleen Industrial Services Inc. Top agencies USAF (Department of the Air Force)	$27,965	0.2%	Rank history: #42 in FY2022, #37 in FY2023, #57 in FY2024 and #78 in FY2025; unchanged since FY2020.
54	Trescott Brandon James Top agencies Army (Department of the Army)	$23,980	0.2%	Rank history: #72 in FY2022, #67 in FY2023, #77 in FY2024 and #50 in FY2025; up 28 since FY2020.
55	Oregon Pacific Leasing Inc. Top agencies DOI (Department of the Interior)	$22,964	0.2%	Rank history: #48 in FY2022, #45 in FY2023, not on the FY2024 list and #86 in FY2025; new, not ranked in FY2020.
56	Anna Lisa Luna Construction, Inc. Top agencies Navy (Department of the Navy)	$21,250	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
57	DXP Enterprises, Inc. Through Alaska Pump & Supply, Inc. Top agencies USDA (Department of Agriculture)	$21,119	0.1%	Rank history: not on the FY2022–FY2023 lists, #91 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
58	Pipeline Video Inspection L.l.c Top agencies DOJ (Department of Justice)	$19,805	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Joeb LLC Top agencies DOI (Department of the Interior)	$19,693	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Integriward, LLC Top agencies DHS (Department of Homeland Security)	$19,403	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
61	Dallago Corporation Top agencies HHS (Department of Health and Human Services)	$18,926	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Columbia Sanitary Service, Inc. Top agencies USDA (Department of Agriculture)	$18,140	0.1%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
63	Jones General Contracting, LLC Top agencies VA (Department of Veterans Affairs)	$17,982	0.1%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
64	Skookum Educational Programs Top agencies Navy (Department of the Navy)	$17,918	0.1%	Rank history: #76 in FY2022, not on the FY2023 list, #24 in FY2024 and not on the FY2025 list; down 27 since FY2020.
65	Outbackjack LLC Top agencies USDA (Department of Agriculture)	$17,775	0.1%	Rank history: #56 in FY2022, not on the FY2023 list, #54 in FY2024 and #61 in FY2025; new, not ranked in FY2020.
66	Jet Inc. Top agencies DOS (Department of State)	$17,218	0.1%	Rank history: not on the FY2022 list, #74 in FY2023, #83 in FY2024 and #84 in FY2025; new, not ranked in FY2020.
67	Frontier Unlimited LLC Top agencies USDA (Department of Agriculture)	$16,850	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	VJL Waste Management Services Inc. Top agencies DOI (Department of the Interior)	$14,640	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
69	American Engineering Corporation Top agencies USAF (Department of the Air Force)	$14,636	0.1%	Rank history: #7 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
70	Hydro-Klean LLC Top agencies DOI (Department of the Interior)	$13,720	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Ecology Mir Group LLC Top agencies Army (Department of the Army)	$12,407	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
72	C & S Building Services Inc. Top agencies DOI (Department of the Interior)	$11,400	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Good Shepherd Septic Service Inc. Top agencies SSA (Social Security Administration)	$11,228	0.1%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
74	Keystone GC, LLC Top agencies DOI (Department of the Interior)	$10,889	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Webber's Dirtworks LLC Top agencies USDA (Department of Agriculture)	$10,500	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Forman Equipment and Contracting Company, Inc. Top agencies DHS (Department of Homeland Security)	$9,650	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Revel Environmental Manufacturing, Inc. Top agencies Navy (Department of the Navy)	$8,777	0.1%	Rank history: #66 in FY2022, #82 in FY2023, #87 in FY2024 and #85 in FY2025; up 1 since FY2020.
78	B & B Concrete Products Inc. Top agencies USDA (Department of Agriculture)	$8,495	0.1%	Rank history: #68 in FY2022, #84 in FY2023, #89 in FY2024 and #90 in FY2025; up 11 since FY2020.
79	M & M Sanitary LLC Top agencies USAF (Department of the Air Force)	$7,670	0.1%	Rank history: #70 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
80	Master Port A JON Service Inc. Top agencies USDA (Department of Agriculture)	$7,332	<0.1%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
81	Modoc Services, Inc. Top agencies DOI (Department of the Interior)	$6,940	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Grand County Septic, LLC Top agencies USDA (Department of Agriculture)	$5,850	<0.1%	Rank history: #69 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
83	Verdugo Testing Co. Inc. Top agencies DHS (Department of Homeland Security)	$5,009	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	J.p. Seworootor, Inc. Top agencies Smithsonian (Smithsonian Institution)	$4,975	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Wilson Construction Inc. Top agencies USDA (Department of Agriculture)	$4,902	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	R & D Watters Septic Service, Inc. Top agencies Army (Department of the Army)	$4,225	<0.1%	Rank history: #78 in FY2022, #91 in FY2023, #92 in FY2024 and #97 in FY2025; new, not ranked in FY2020.
87	Jarvis Septic & Drain, LLC Top agencies VA (Department of Veterans Affairs)	$3,746	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Spirit Services, Incorporated Top agencies USAF (Department of the Air Force)	$3,520	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Thornley's Service, Inc. Top agencies DOI (Department of the Interior)	$3,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Del Mar Environmental & Construction Services Inc. Top agencies Navy (Department of the Navy)	$1,940	<0.1%	Rank history: #30 in FY2022, #14 in FY2023, #94 in FY2024 and not on the FY2025 list; down 26 since FY2020.
91	Bernie's Well & Water, LLC Top agencies DHS (Department of Homeland Security)	$1,014	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in 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 $15 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