Top 100 Contractors in PSC 4610: Water Purification Equipment, FY2023

Name: Top 100 Contractors in PSC 4610: Water Purification Equipment, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 65% of FY2023 PSC 4610 contract dollars

Contract obligations: $53,729,407 Net of deobligations, by contracts coded PSC 4610
Contractors: 235 Parent companies with an obligation
Largest contractor: Highland Engineering, Inc. $11.4 million, 20.9% 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	Highland Engineering, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$11,420,577	20.9%	Rank history: #22 in FY2021, #24 in FY2022, #18 in FY2024 and #35 in FY2025; up 23 since FY2022.
2	Miami Nation Enterpeises Through Wiipica QRI JV LLC Top agencies Army (Department of the Army)	$5,627,147	10.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
3	GTA Containers, Inc. Top agencies Army (Department of the Army)	$4,310,997	7.9%	Rank history: not on the FY2021 list, #31 in FY2022, #1 in FY2024 and #1 in FY2025; up 28 since FY2022.
4	Vast Industries, LLC Top agencies Army (Department of the Army)	$3,441,924	6.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
5	Integrated Procurement Technologies 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,779,349	5.1%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2024 and #3 in FY2025; down 3 since FY2022.
6	Iwakuni City Hall Through Iwakuni City Waterworks Bureau Top agencies Navy (Department of the Navy)	$2,649,607	4.9%	Rank history: #5 in FY2021, #3 in FY2022, #7 in FY2024 and not on the FY2025 list; down 3 since FY2022.
7	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$2,325,874	4.3%	Rank history: #8 in FY2021, #5 in FY2022, #4 in FY2024 and #7 in FY2025; down 2 since FY2022.
8	Bromine Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,410,867	2.6%	Rank history: #9 in FY2021, #4 in FY2022, #5 in FY2024 and #8 in FY2025; down 4 since FY2022.
9	Clean Harbors Inc Through Clean Harbors Environmental Services Inc. Top agencies Navy (Department of the Navy)	$769,442	1.4%	Rank history: not on the FY2021 list, #8 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
10	Evoqua Water Technologies LLC Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$720,443	1.3%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2024 and not on the FY2025 list; new.
11	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$709,990	1.3%	Rank history: #14 in FY2021, #10 in FY2022, #32 in FY2024 and not on the FY2025 list; down 1 since FY2022.
12	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$512,808	0.9%	Rank history: #16 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
13	Fresenius USA Inc. Top agencies VA (Department of Veterans Affairs)	$457,750	0.8%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
14	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$456,336	0.8%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2024 and #26 in FY2025; up 150 since FY2022.
15	B. David Co Inc. Top agencies DOS (Department of State) Peace Corps	$423,761	0.8%	Rank history: #10 in FY2021, #13 in FY2022, #45 in FY2024 and #29 in FY2025; down 2 since FY2022.
16	Marathon Medical Corporation Top agencies VA (Department of Veterans Affairs)	$340,832	0.6%	Rank history: #11 in FY2021, #14 in FY2022, #17 in FY2024 and #13 in FY2025; down 2 since FY2022.
17	Enviremedial Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$340,033	0.6%	Rank history: #6 in FY2021, not on the FY2022 list, #3 in FY2024 and not on the FY2025 list; returned.
18	Parker-Hannifin Corporation 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$338,219	0.6%	Rank history: #2 in FY2021, #11 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
19	Energysolutions LLC Through Energysolutions Services Inc. Top agencies Navy (Department of the Navy)	$337,269	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
20	Aspen Water Inc Top agencies USAF (Department of the Air Force)	$326,874	0.6%	Rank history: #25 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
21	Carolina Water Specialties LLC Top agencies DOS (Department of State)	$297,537	0.5%	Rank history: not on the FY2021 list, #40 in FY2022, not on the FY2024 list and #41 in FY2025; up 19 since FY2022.
22	Black Bay Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$291,558	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
23	SWK Stadtwerke Kaiserslautern Versorgungs-AG Top agencies USAF (Department of the Air Force)	$280,421	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	Monroe Environmental Corp Top agencies USAF (Department of the Air Force)	$264,400	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	Next Generation Logistics, LLC Top agencies DHS (Department of Homeland Security)	$258,300	0.5%	Rank history: not on the FY2021 list, #47 in FY2022, #28 in FY2024 and not on the FY2025 list; up 22 since FY2022.
26	Waiea Water Distributors LLC Top agencies USAF (Department of the Air Force)	$248,246	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Pvilion, Inc. Top agencies USAF (Department of the Air Force)	$240,688	0.4%	Rank history: not on the FY2021 list, #27 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
28	Prime Masonry, LLC Top agencies DHS (Department of Homeland Security)	$238,818	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
29	ERV Smith Services, Inc. Top agencies USAF (Department of the Air Force)	$238,350	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$237,276	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 84 since FY2022.
31	Ceg-Mse 8A JV, LLC Top agencies DOT (Department of Transportation)	$236,421	0.4%	Rank history: not on the FY2021 list, #15 in FY2022, #90 in FY2024 and not on the FY2025 list; down 16 since FY2022.
32	Butyl Products Ltd Top agencies USAID (US Agency for International Development)	$233,498	0.4%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2024 and not on the FY2025 list; new.
33	Suez WTS USA Inc. 2 awardees, including Ameriwater, LLC Top agencies VA (Department of Veterans Affairs)	$226,293	0.4%	Rank history: #21 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 72 since FY2022.
34	Aqua Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Commerce (Department of Commerce)	$220,165	0.4%	Rank history: not on the FY2021 list, #54 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
35	Surplus Management Inc. Top agencies DOI (Department of the Interior)	$218,515	0.4%	Rank history: not on the FY2021 list, #41 in FY2022, #13 in FY2024 and not on the FY2025 list; up 6 since FY2022.
36	Corporation Logical Top agencies Navy (Department of the Navy)	$210,571	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Aqua-Chem, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$204,351	0.4%	Rank history: not on the FY2021 list, #38 in FY2022, #19 in FY2024 and #33 in FY2025; up 1 since FY2022.
38	Ecocool Enterprises Sga, LLC Top agencies VA (Department of Veterans Affairs)	$203,900	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Firstchoice Group America LLC Top agencies USAF (Department of the Air Force)	$203,490	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Filtration Technology, Inc. Top agencies DOI (Department of the Interior)	$201,116	0.4%	Rank history: #40 in FY2021, #26 in FY2022, #21 in FY2024 and #27 in FY2025; down 14 since FY2022.
41	State of California Controllers Office Through University of California San Diego Top agencies Commerce (Department of Commerce)	$197,626	0.4%	Rank history: #82 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
42	Triman Industries Inc. 2 awardees, including Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$194,902	0.4%	Rank history: not on the FY2021 list, #73 in FY2022, #56 in FY2024 and #74 in FY2025; up 31 since FY2022.
43	Statz Corp Top agencies DLA (Defense Logistics Agency)	$190,746	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 74 since FY2022.
44	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$183,785	0.3%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; up 44 since FY2022.
45	Export 220Volt Inc. Top agencies DOS (Department of State)	$177,054	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Pbe, Inc. Top agencies HHS (Department of Health and Human Services)	$174,660	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	Ozone LLC Top agencies USAF (Department of the Air Force)	$164,319	0.3%	Rank history: #27 in FY2021, not on the FY2022 list, #47 in FY2024 and not on the FY2025 list; returned.
48	The Maclean Group LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$147,086	0.3%	Rank history: #23 in FY2021, #43 in FY2022, #60 in FY2024 and not on the FY2025 list; down 5 since FY2022.
49	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$144,302	0.3%	Rank history: #38 in FY2021, #30 in FY2022, #51 in FY2024 and #55 in FY2025; down 19 since FY2022.
50	R O I C General Trading L.l.c Top agencies DOS (Department of State)	$142,007	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$139,350	0.3%	Rank history: #96 in FY2021, not on the FY2022 list, #37 in FY2024 and #38 in FY2025; up 91 since FY2022.
52	Alfa Laval Inc. Top agencies Navy (Department of the Navy)	$139,170	0.3%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and not on the FY2025 list; new.
53	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$137,221	0.3%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and not on the FY2025 list; up 131 since FY2022.
54	Jet Inc. Top agencies DOS (Department of State)	$136,358	0.3%	Rank history: not on the FY2021 list, #96 in FY2022 and not on the FY2024–FY2025 lists; up 42 since FY2022.
55	Lifestream Watersystems, Inc. Top agencies Army (Department of the Army)	$134,614	0.2%	Rank history: #33 in FY2021, #93 in FY2022, #54 in FY2024 and #16 in FY2025; up 38 since FY2022.
56	Mecx, Inc. Top agencies VA (Department of Veterans Affairs)	$130,687	0.2%	Rank history: #28 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 77 since FY2022.
57	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$130,394	0.2%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2024 and not on the FY2025 list; new.
58	Gyrene Engineering Management, LLC Top agencies USAF (Department of the Air Force)	$125,959	0.2%	Rank history: #47 in FY2021, #51 in FY2022, not on the FY2024 list and #44 in FY2025; down 7 since FY2022.
59	Ziad Mohammad Abdullah Abu-Hashish Top agencies Army (Department of the Army)	$119,504	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Oil States Industries Inc Top agencies Navy (Department of the Navy)	$117,136	0.2%	Rank history: #58 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
61	DRS Global Enterprise Solutions Inc Through Engineered Coil Company Top agencies DLA (Defense Logistics Agency)	$116,926	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Semitorr Group Inc. Through Genesis Systems LLC Top agencies USAF (Department of the Air Force)	$115,500	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Ecolab Inc. Through Nalco Water Pretreatment Solutions, LLC Top agencies DOS (Department of State)	$109,758	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #90 in FY2025; new.
64	RTX Corporation Through Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$108,460	0.2%	Rank history: #46 in FY2021, #91 in FY2022 and not on the FY2024–FY2025 lists; up 27 since FY2022.
65	Industrial Water Engineering, Inc. Top agencies HHS (Department of Health and Human Services)	$103,633	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 55 since FY2022.
66	Gunther Salt Company Top agencies VA (Department of Veterans Affairs)	$102,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Coastline Ltd. Top agencies USAF (Department of the Air Force) Smithsonian (Smithsonian Institution)	$100,387	0.2%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2024 and #51 in FY2025; new.
68	Giga, Inc. Top agencies Army (Department of the Army)	$94,000	0.2%	Rank history: #39 in FY2021, #49 in FY2022, #70 in FY2024 and #53 in FY2025; down 19 since FY2022.
69	Separation Dynamics Inc. Top agencies USAF (Department of the Air Force)	$91,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and not on the FY2025 list; new.
70	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$90,453	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 121 since FY2022.
71	Baxter International Inc. Through Baxter Healthcare Corporation Top agencies VA (Department of Veterans Affairs)	$90,228	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2024 and not on the FY2025 list; new.
72	Coventina Water, LLC Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$88,351	0.2%	Rank history: #60 in FY2021, not on the FY2022 list, not on the FY2024 list and #72 in FY2025; up 102 since FY2022.
73	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$85,229	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #46 in FY2024 and not on the FY2025 list; down 8 since FY2022.
74	Westex Group, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$81,788	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Danaher Corporation Through Pall Aeropower Corporation Top agencies DLA (Defense Logistics Agency)	$81,688	0.1%	Rank history: #55 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 54 since FY2022.
76	Franklin Young International, Incorporated Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$80,082	0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #48 in FY2024 and #71 in FY2025; unchanged since FY2022.
77	Durastill Export, Inc. Top agencies DOS (Department of State)	$79,985	0.1%	Rank history: #94 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 60 since FY2022.
78	Thermo Electron Corporation 2 awardees, including Fisher Scientific Company L.L.C. and Thermo Fisher Scientific (Asheville) LLC Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$77,857	0.1%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
79	Ozone Water Systems Inc Top agencies DOI (Department of the Interior)	$68,720	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Wisecom Technologies Inc. Top agencies USAF (Department of the Air Force)	$68,689	0.1%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2024–FY2025 lists; down 63 since FY2022.
81	2Lyons Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$66,431	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
82	Resintech Inc. Top agencies DLA (Defense Logistics Agency)	$64,364	0.1%	Rank history: #83 in FY2021, #55 in FY2022, #97 in FY2024 and not on the FY2025 list; down 27 since FY2022.
83	Shani Wallace Top agencies Navy (Department of the Navy)	$63,900	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Merck KG AUF Aktien Through EMD Millipore Corp Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) Navy (Department of the Navy)	$61,517	0.1%	Rank history: #50 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
85	Govparts LLC Top agencies DLA (Defense Logistics Agency)	$61,480	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	La Mar Industries, Inc. Top agencies Army (Department of the Army)	$61,418	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$60,744	0.1%	Rank history: #52 in FY2021, #97 in FY2022, #88 in FY2024 and #61 in FY2025; up 10 since FY2022.
88	Redorange LLC Top agencies DOS (Department of State)	$60,426	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Light Transit LLC Top agencies Army (Department of the Army)	$57,680	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	MJL Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$57,180	0.1%	Rank history: #87 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 13 since FY2022.
91	Government Scientific Source Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$57,142	0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2024 and #92 in FY2025; up 13 since FY2022.
92	S4 Water Sales and Service, LLC Top agencies DOS (Department of State)	$56,756	0.1%	Rank history: #67 in FY2021, not on the FY2022 list, #63 in FY2024 and #85 in FY2025; up 43 since FY2022.
93	Vcloud GOV Inc. Top agencies Army (Department of the Army)	$55,878	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	MDF Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$54,745	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 66 since FY2022.
95	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$54,213	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #22 in FY2025; up 76 since FY2022.
96	Chief Purification Inc. Top agencies Army (Department of the Army)	$54,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Red Orange North America Inc. Top agencies DOS (Department of State)	$53,656	0.1%	Rank history: not on the FY2021 list, #81 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
98	A.m.s. Network, LLC Top agencies DLA (Defense Logistics Agency)	$52,370	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 15 since FY2022.
99	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$52,042	0.1%	Rank history: #76 in FY2021, #80 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
100	Commercial Energy Specialists, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$49,196	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #24 in FY2025; new.

Show 75 more

100 of 235 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 $54.5 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 4610 contractors in FY2023?

1. Highland Engineering, Inc. ($11.4M), 2. Miami Nation Enterpeises ($5.63M), 3. GTA Containers, Inc. ($4.31M), 4. Vast Industries, LLC ($3.44M), 5. Integrated Procurement Technologies ($2.78M), 6. Iwakuni City Hall ($2.65M), 7. Supplycore LLC ($2.33M), 8. Bromine Systems Inc. ($1.41M), 9. Clean Harbors Inc ($769K), 10. Evoqua Water Technologies LLC ($720K).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login