Top 100 Contractors in PSC 46: Water Purification/Sewage Treatment, FY2023

Name: Top 100 Contractors in PSC 46: Water Purification/Sewage Treatment, FY2023
Creator: GovTribe

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

The top 10 won 57% of FY2023 PSC 46 contract dollars

Contract obligations: $68,041,293 Net of deobligations, by contracts coded PSC 46 or a code under it
Contractors: 305 Parent companies with an obligation
Largest contractor: Highland Engineering, Inc. $11.4 million, 16.6% 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	16.6%	Rank history: #30 in FY2021, #32 in FY2022, #27 in FY2024 and #43 in FY2025; up 31 since FY2022.
2	Miami Nation Enterpeises Through Wiipica QRI JV LLC Top agencies Army (Department of the Army)	$5,627,147	8.2%	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	6.3%	Rank history: not on the FY2021 list, #40 in FY2022, #2 in FY2024 and #2 in FY2025; up 37 since FY2022.
4	Vast Industries, LLC Top agencies Army (Department of the Army)	$3,441,924	5.0%	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)	$3,376,439	4.9%	Rank history: #4 in FY2021, #1 in FY2022, #3 in FY2024 and #5 in FY2025; down 4 since FY2022.
6	Iwakuni City Hall Through Iwakuni City Waterworks Bureau Top agencies Navy (Department of the Navy)	$2,649,607	3.8%	Rank history: #6 in FY2021, #3 in FY2022, #10 in FY2024 and not on the FY2025 list; down 3 since FY2022.
7	Maxim Evaporators of America, LLC Top agencies Navy (Department of the Navy)	$2,647,459	3.8%	Rank history: #12 in FY2021, not on the FY2022 list, #73 in FY2024 and not on the FY2025 list; returned.
8	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$2,325,874	3.4%	Rank history: #10 in FY2021, #5 in FY2022, #6 in FY2024 and #10 in FY2025; down 3 since FY2022.
9	Allied Defense Industries Inc. 3 awardees, including Environmental Systems LLC and Allied Marine Services LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,156,605	3.1%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2024 and not on the FY2025 list; up 151 since FY2022.
10	Bromine Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,410,867	2.0%	Rank history: #14 in FY2021, #4 in FY2022, #7 in FY2024 and #11 in FY2025; down 6 since FY2022.
11	Flightfab, Inc. Top agencies Navy (Department of the Navy)	$1,237,831	1.8%	Rank history: #26 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
12	Wastewater Depot, LLC Top agencies Army (Department of the Army)	$1,036,845	1.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	Clean Harbors Inc Through Clean Harbors Environmental Services Inc. Top agencies Navy (Department of the Navy)	$769,442	1.1%	Rank history: not on the FY2021 list, #11 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
14	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	1.0%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
15	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$709,990	1.0%	Rank history: #20 in FY2021, #13 in FY2022, #45 in FY2024 and not on the FY2025 list; down 2 since FY2022.
16	Marine Electric Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$605,617	0.9%	Rank history: #11 in FY2021, #20 in FY2022, #14 in FY2024 and #9 in FY2025; up 4 since FY2022.
17	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$521,791	0.8%	Rank history: #21 in FY2021, #17 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
18	Dupont De Nemours, Inc. 2 awardees, including Mecs, Inc. and Filmtec Corp Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$511,555	0.7%	Rank history: not on the FY2021 list, #55 in FY2022 and not on the FY2024–FY2025 lists; up 37 since FY2022.
19	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$490,615	0.7%	Rank history: #19 in FY2021, not on the FY2022 list, #21 in FY2024 and #75 in FY2025; up 117 since FY2022.
20	Fresenius USA Inc. Top agencies VA (Department of Veterans Affairs)	$457,750	0.7%	Rank history: not on the FY2021 list, #26 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
21	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$456,336	0.7%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and #35 in FY2025; up 140 since FY2022.
22	Sulzer AG 2 awardees, including JWC Environmental Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior) DOJ (Department of Justice)	$442,452	0.6%	Rank history: #89 in FY2021, #79 in FY2022, #64 in FY2024 and #62 in FY2025; up 57 since FY2022.
23	B. David Co Inc. Top agencies DOS (Department of State) Peace Corps	$436,226	0.6%	Rank history: #15 in FY2021, #19 in FY2022, #35 in FY2024 and #42 in FY2025; down 4 since FY2022.
24	Aqua-Chem, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$392,723	0.6%	Rank history: #41 in FY2021, #28 in FY2022, #16 in FY2024 and #31 in FY2025; up 4 since FY2022.
25	Marathon Medical Corporation Top agencies VA (Department of Veterans Affairs)	$340,832	0.5%	Rank history: #17 in FY2021, #21 in FY2022, #26 in FY2024 and #16 in FY2025; down 4 since FY2022.
26	Enviremedial Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$340,033	0.5%	Rank history: #7 in FY2021, not on the FY2022 list, #5 in FY2024 and not on the FY2025 list; returned.
27	Parker-Hannifin Corporation 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$338,219	0.5%	Rank history: #3 in FY2021, #14 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
28	Energysolutions LLC Through Energysolutions Services Inc. Top agencies Navy (Department of the Navy)	$337,269	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
29	Headhunter Inc. Top agencies Navy (Department of the Navy)	$333,460	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Aspen Water Inc Top agencies USAF (Department of the Air Force)	$326,874	0.5%	Rank history: #34 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
31	Carolina Water Specialties LLC Top agencies DOS (Department of State)	$297,537	0.4%	Rank history: not on the FY2021 list, #52 in FY2022, not on the FY2024 list and #53 in FY2025; up 21 since FY2022.
32	Black Bay Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$291,558	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	SWK Stadtwerke Kaiserslautern Versorgungs-AG Top agencies USAF (Department of the Air Force)	$280,421	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Monroe Environmental Corp Top agencies USAF (Department of the Air Force)	$264,400	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Next Generation Logistics, LLC Top agencies DHS (Department of Homeland Security)	$258,300	0.4%	Rank history: not on the FY2021 list, #60 in FY2022, #39 in FY2024 and not on the FY2025 list; up 25 since FY2022.
36	Waiea Water Distributors LLC Top agencies USAF (Department of the Air Force)	$248,246	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Pvilion, Inc. Top agencies USAF (Department of the Air Force)	$240,688	0.3%	Rank history: not on the FY2021 list, #35 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
38	Shape Inc Top agencies DOI (Department of the Interior)	$239,900	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Prime Masonry, LLC Top agencies DHS (Department of Homeland Security)	$238,818	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	ERV Smith Services, Inc. Top agencies USAF (Department of the Air Force)	$238,350	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$237,276	0.3%	Rank history: #82 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 113 since FY2022.
42	Ceg-Mse 8A JV, LLC Top agencies DOT (Department of Transportation)	$236,421	0.3%	Rank history: not on the FY2021 list, #22 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
43	Amwaj Al-Sahel Company Top agencies USSOCOM (United States Special Operations Command)	$235,340	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Consolidated Water Works District 1 Top agencies DHS (Department of Homeland Security)	$234,625	0.3%	Rank history: not on the FY2021 list, #33 in FY2022, #89 in FY2024 and not on the FY2025 list; down 11 since FY2022.
45	Butyl Products Ltd Top agencies USAID (US Agency for International Development)	$233,498	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$229,528	0.3%	Rank history: #44 in FY2021, #39 in FY2022, #57 in FY2024 and #37 in FY2025; down 7 since FY2022.
47	Suez WTS USA Inc. 2 awardees, including Ameriwater, LLC Top agencies VA (Department of Veterans Affairs)	$226,293	0.3%	Rank history: #28 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 95 since FY2022.
48	Aqua Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Commerce (Department of Commerce)	$220,165	0.3%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; up 23 since FY2022.
49	Surplus Management Inc. Top agencies DOI (Department of the Interior)	$218,515	0.3%	Rank history: not on the FY2021 list, #53 in FY2022, #19 in FY2024 and not on the FY2025 list; up 4 since FY2022.
50	Corporation Logical Top agencies Navy (Department of the Navy)	$210,571	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	Ecocool Enterprises Sga, LLC Top agencies VA (Department of Veterans Affairs)	$203,900	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Firstchoice Group America LLC Top agencies USAF (Department of the Air Force)	$203,490	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
53	Cepeda Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$201,510	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and #30 in FY2025; new.
54	Filtration Technology, Inc. Top agencies DOI (Department of the Interior)	$201,116	0.3%	Rank history: #58 in FY2021, #34 in FY2022, #31 in FY2024 and #36 in FY2025; down 20 since FY2022.
55	State of California Controllers Office Through University of California San Diego Top agencies Commerce (Department of Commerce)	$197,626	0.3%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
56	Triman Industries Inc. 2 awardees, including Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$194,902	0.3%	Rank history: not on the FY2021 list, #97 in FY2022, #74 in FY2024 and #99 in FY2025; up 41 since FY2022.
57	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 100 since FY2022.
58	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$183,785	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 56 since FY2022.
59	S I T Corporation Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$179,350	0.3%	Rank history: #48 in FY2021, not on the FY2022 list, #49 in FY2024 and #39 in FY2025; up 105 since FY2022.
60	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.
61	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.
62	Ozone LLC Top agencies USAF (Department of the Air Force)	$164,319	0.2%	Rank history: #36 in FY2021, not on the FY2022 list, #62 in FY2024 and not on the FY2025 list; returned.
63	BSE Performance, LLC Top agencies DOI (Department of the Interior)	$153,396	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Ladanco LLC Top agencies USAF (Department of the Air Force)	$149,506	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	The Maclean Group LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$147,086	0.2%	Rank history: #31 in FY2021, #56 in FY2022, #81 in FY2024 and not on the FY2025 list; down 9 since FY2022.
66	R O I C General Trading L.l.c Top agencies DOS (Department of State)	$142,007	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Smith & Loveless, Inc. Top agencies USDA (Department of Agriculture)	$139,998	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Alfa Laval Inc. Top agencies Navy (Department of the Navy)	$139,170	0.2%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2024 and not on the FY2025 list; new.
69	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$137,221	0.2%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and not on the FY2025 list; up 171 since FY2022.
70	GP Jager, LLC Top agencies DOJ (Department of Justice)	$136,987	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Jet Inc. Top agencies DOS (Department of State)	$136,358	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 58 since FY2022.
72	Government Scientific Source Inc. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) USAF (Department of the Air Force)	$135,382	0.2%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and not on the FY2025 list; up 69 since FY2022.
73	Continued Tender Private Company for General Trading Ltd Top agencies USSOCOM (United States Special Operations Command)	$135,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Lifestream Watersystems, Inc. Top agencies Army (Department of the Army)	$134,614	0.2%	Rank history: #46 in FY2021, not on the FY2022 list, #71 in FY2024 and #18 in FY2025; up 51 since FY2022.
75	Ecolab Inc. 2 awardees, including Nalco Water Pretreatment Solutions, LLC and Nalco Company LLC Top agencies DOS (Department of State) USAF (Department of the Air Force)	$131,952	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 43 since FY2022.
76	Mecx, Inc. Top agencies VA (Department of Veterans Affairs)	$130,687	0.2%	Rank history: #37 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 103 since FY2022.
77	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$130,394	0.2%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and not on the FY2025 list; new.
78	Astrea Group for Trading and Contracting Top agencies USAF (Department of the Air Force)	$129,552	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
79	Gyrene Engineering Management, LLC Top agencies USAF (Department of the Air Force)	$125,959	0.2%	Rank history: #67 in FY2021, #66 in FY2022, not on the FY2024 list and #58 in FY2025; down 13 since FY2022.
80	Durastill Export, Inc. Top agencies DOS (Department of State)	$123,430	0.2%	Rank history: #88 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
81	Aantilia LLC Top agencies DOI (Department of the Interior)	$119,753	0.2%	Rank history: not on the FY2021 list, #47 in FY2022, #42 in FY2024 and not on the FY2025 list; down 34 since FY2022.
82	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.
83	Oil States Industries Inc Top agencies Navy (Department of the Navy)	$117,136	0.2%	Rank history: #81 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
84	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.
85	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.
86	RTX Corporation Through Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$108,460	0.2%	Rank history: #66 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 33 since FY2022.
87	Gulf States Engineering Co Inc. Top agencies USAF (Department of the Air Force)	$105,053	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	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 77 since FY2022.
89	Gunther Salt Company Top agencies VA (Department of Veterans Affairs)	$102,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Orison Marketing LLC Top agencies USAF (Department of the Air Force)	$99,496	0.1%	Rank history: not on the FY2021 list, #70 in FY2022, #96 in FY2024 and not on the FY2025 list; down 20 since FY2022.
91	Coastline Ltd. Top agencies USAF (Department of the Air Force) Smithsonian (Smithsonian Institution)	$96,331	0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and #70 in FY2025; new.
92	Giga, Inc. Top agencies Army (Department of the Army)	$94,000	0.1%	Rank history: #57 in FY2021, #63 in FY2022, #95 in FY2024 and #72 in FY2025; down 29 since FY2022.
93	Separation Dynamics Inc. Top agencies USAF (Department of the Air Force)	$91,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2024 and not on the FY2025 list; new.
94	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$90,453	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 153 since FY2022.
95	Baxter International Inc. Through Baxter Healthcare Corporation Top agencies VA (Department of Veterans Affairs)	$90,228	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Coventina Water, LLC Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$88,351	0.1%	Rank history: #87 in FY2021, not on the FY2022 list, not on the FY2024 list and #97 in FY2025; up 132 since FY2022.
97	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$85,229	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #61 in FY2024 and not on the FY2025 list; down 11 since FY2022.
98	Stat Waste Stream Services Inc. Top agencies DHS (Department of Homeland Security)	$83,948	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 5 since FY2022.
99	Danaher Corporation 2 awardees, including Pall Aeropower Corporation and Hach Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$83,679	0.1%	Rank history: #76 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 76 since FY2022.
100	Small Beginnings LLC Top agencies USDA (Department of Agriculture)	$82,880	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2024 and not on the FY2025 list; new.

Show 75 more

100 of 305 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 46

Code	Net obligations	Largest contractor
4610 Water Purification Equipment	$53,729,407	Highland Engineering, Inc.
4630 Sewage Treatment Equipment	$8,583,873	Allied Defense Industries Inc.
4620 Water Distillation Equipment, Marine and Industrial	$5,728,013	Maxim Evaporators of America, LLC

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 $69 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 46 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 ($3.38M), 6. Iwakuni City Hall ($2.65M), 7. Maxim Evaporators of America, LLC ($2.65M), 8. Supplycore LLC ($2.33M), 9. Allied Defense Industries Inc. ($2.16M), 10. Bromine Systems Inc. ($1.41M).

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