Top 100 Contractors in PSC 4610: Water Purification Equipment, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,606,287	10.7%	Rank history: #3 in FY2021, #2 in FY2022, not on the FY2023–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
2	Iwakuni City Through Iwakuni City Waterworks Bureau Top agencies Navy (Department of the Navy)	$3,225,875	7.5%	Rank history: #5 in FY2021, #3 in FY2022, #6 in FY2023, #7 in FY2024 and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$2,502,752	5.8%	Rank history: #8 in FY2021, #5 in FY2022, #7 in FY2023, #4 in FY2024 and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
4	Atap Inc. Top agencies USAF (Department of the Air Force)	$2,141,352	5.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Bromine Systems Inc. Top agencies DLA (Defense Logistics Agency)	$1,854,309	4.3%	Rank history: #9 in FY2021, #4 in FY2022, #8 in FY2023, #5 in FY2024 and #8 in FY2025; up 3 since Aug 2024–Jul 2025.
6	Katadyn Desalination, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,852,542	4.3%	Rank history: #1 in FY2021, not on the FY2022–FY2023 lists, #10 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
7	Fresenius Medical Care Holdings Inc. 2 awardees, including Fresenius Usa, Inc. Top agencies VA (Department of Veterans Affairs)	$1,432,715	3.3%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; up 5 since Aug 2024–Jul 2025.
8	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$1,395,000	3.3%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	HSQ Tech, Inc. Top agencies USAF (Department of the Air Force)	$1,299,500	3.0%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
10	SDV Office Systems LLC Top agencies VA (Department of Veterans Affairs)	$1,273,460	3.0%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #6 in FY2025; down 3 since Aug 2024–Jul 2025.
11	GEA North America Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$923,430	2.2%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #47 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Luxfer Magtech Inc. Top agencies DLA (Defense Logistics Agency)	$912,288	2.1%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #19 in FY2025; up 5 since Aug 2024–Jul 2025.
13	Marathon Medical Corporation Top agencies VA (Department of Veterans Affairs)	$902,204	2.1%	Rank history: #11 in FY2021, #14 in FY2022, #16 in FY2023, #17 in FY2024 and #13 in FY2025; up 13 since Aug 2024–Jul 2025.
14	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$900,743	2.1%	Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and #11 in FY2025; down 4 since Aug 2024–Jul 2025.
15	Evoqua Water Technologies LLC 6 awardees Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$838,318	2.0%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; up 15 since Aug 2024–Jul 2025.
16	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$720,835	1.7%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023, #6 in FY2024 and #26 in FY2025; up 5 since Aug 2024–Jul 2025.
17	Lifestream Watersystems, Inc. Top agencies DOI (Department of the Interior)	$651,948	1.5%	Rank history: #33 in FY2021, #93 in FY2022, #55 in FY2023, #54 in FY2024 and #16 in FY2025; up 25 since Aug 2024–Jul 2025.
18	Ameriwater, LLC Top agencies VA (Department of Veterans Affairs)	$627,141	1.5%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #18 in FY2025; down 5 since Aug 2024–Jul 2025.
19	Oil States Industries, Inc. Top agencies Navy (Department of the Navy)	$626,970	1.5%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #21 in FY2025; up 8 since Aug 2024–Jul 2025.
20	Avantech, LLC Top agencies Navy (Department of the Navy)	$586,384	1.4%	Rank history: #13 in FY2021, #22 in FY2022, not on the FY2023 list, #62 in FY2024 and #23 in FY2025; up 3 since Aug 2024–Jul 2025.
21	Vantive US Healthcare LLC Top agencies VA (Department of Veterans Affairs)	$564,296	1.3%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; down 12 since Aug 2024–Jul 2025.
22	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$518,755	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$500,844	1.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, not on the FY2024 list and #22 in FY2025; up 9 since Aug 2024–Jul 2025.
24	EPD USA Inc. Top agencies DOI (Department of the Interior)	$471,465	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$433,452	1.0%	Rank history: #61 in FY2021, #33 in FY2022, not on the FY2023–FY2024 lists and #54 in FY2025; up 63 since Aug 2024–Jul 2025.
26	Pbe, Inc. Top agencies HHS (Department of Health and Human Services)	$344,268	0.8%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #30 in FY2025; up 11 since Aug 2024–Jul 2025.
27	SWK Stadtwerke Kaiserslautern Versorgungs-Ag Top agencies USAF (Department of the Air Force)	$336,211	0.8%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023 and not on the FY2024–FY2025 lists; up 166 since Aug 2024–Jul 2025.
28	Filtration Technology, Inc. Top agencies DOI (Department of the Interior)	$317,066	0.7%	Rank history: #40 in FY2021, #26 in FY2022, #40 in FY2023, #21 in FY2024 and #27 in FY2025; up 3 since Aug 2024–Jul 2025.
29	Daiichi Bussan Co., Ltd. Top agencies USAF (Department of the Air Force)	$299,120	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	AMS 21St Century Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$287,925	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Coastline Ltd. Top agencies Smithsonian (Smithsonian Institution)	$264,280	0.6%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #43 in FY2024 and #51 in FY2025; up 28 since Aug 2024–Jul 2025.
32	Absolute Water Technologies L.L.C. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$258,908	0.6%	Rank history: #73 in FY2021, not on the FY2022–FY2024 lists and #40 in FY2025; up 20 since Aug 2024–Jul 2025.
33	Howell Laboratories Inc. Top agencies DLA (Defense Logistics Agency)	$257,057	0.6%	Rank history: #4 in FY2021, #9 in FY2022, not on the FY2023 list, #49 in FY2024 and not on the FY2025 list; up 24 since Aug 2024–Jul 2025.
34	Andrew J Zeigler LLC Top agencies DLA (Defense Logistics Agency)	$232,056	0.5%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #31 in FY2025; up 5 since Aug 2024–Jul 2025.
35	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$226,545	0.5%	Rank history: not on the FY2021 list, #73 in FY2022, #42 in FY2023, #56 in FY2024 and #74 in FY2025; up 41 since Aug 2024–Jul 2025.
36	Emergency Water Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$192,780	0.4%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #66 in FY2025; up 8 since Aug 2024–Jul 2025.
37	RTX Corporation 2 awardees, including Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$185,959	0.4%	Rank history: #46 in FY2021, #91 in FY2022, #64 in FY2023, #35 in FY2024 and #28 in FY2025; down 4 since Aug 2024–Jul 2025.
38	Mid-South Chemical Company, Inc. Top agencies VA (Department of Veterans Affairs)	$184,500	0.4%	Rank history: #24 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Quantico Tactical Incorporated Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$178,513	0.4%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and not on the FY2025 list; up 21 since Aug 2024–Jul 2025.
40	Calhoun & Dejong Inc. Top agencies DOI (Department of the Interior)	$173,553	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41	Sustainable Industries Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$173,031	0.4%	Rank history: not on the FY2021 list, #60 in FY2022, not on the FY2023–FY2024 lists and #20 in FY2025; down 21 since Aug 2024–Jul 2025.
42	Peterson Plumbing Supply Top agencies USDA (Department of Agriculture)	$169,866	0.4%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Aquamedix LLC Top agencies VA (Department of Veterans Affairs)	$163,338	0.4%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #39 in FY2025; down 5 since Aug 2024–Jul 2025.
44	Brewfab, LLC Top agencies Navy (Department of the Navy)	$157,916	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
45	Soncoast Procurement, LLC Top agencies Navy (Department of the Navy)	$153,994	0.4%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; down 5 since Aug 2024–Jul 2025.
46	The Davinci Company, LLC Top agencies VA (Department of Veterans Affairs)	$145,364	0.3%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Gineftao, LLC Top agencies USAF (Department of the Air Force)	$142,700	0.3%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #86 in FY2025; up 34 since Aug 2024–Jul 2025.
48	Gyrene Engineering Management, LLC Top agencies USAF (Department of the Air Force)	$142,359	0.3%	Rank history: #47 in FY2021, #51 in FY2022, #58 in FY2023, not on the FY2024 list and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	B. David Co Inc. Top agencies DOS (Department of State)	$142,299	0.3%	Rank history: #10 in FY2021, #13 in FY2022, #15 in FY2023, #45 in FY2024 and #29 in FY2025; down 21 since Aug 2024–Jul 2025.
50	Highland Engineering, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$141,170	0.3%	Rank history: #22 in FY2021, #24 in FY2022, #1 in FY2023, #18 in FY2024 and #35 in FY2025; down 25 since Aug 2024–Jul 2025.
51	Lake Shore Systems Inc. Top agencies Navy (Department of the Navy)	$140,000	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Setpoint Systems Corp Top agencies USAF (Department of the Air Force)	$137,107	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53	Professional Turf Products, Limited Partnership Top agencies USAF (Department of the Air Force)	$130,834	0.3%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$126,731	0.3%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and not on the FY2024–FY2025 lists; up 136 since Aug 2024–Jul 2025.
55	ELW Global UK Ltd Top agencies USAF (Department of the Air Force)	$125,535	0.3%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and not on the FY2025 list; down 21 since Aug 2024–Jul 2025.
56	The Filtrine Manufacturing Company, Inc. Top agencies USAF (Department of the Air Force)	$124,347	0.3%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	PC Vision Inc Top agencies Army (Department of the Army)	$113,280	0.3%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
58	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$112,950	0.3%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
59	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$110,447	0.3%	Rank history: #38 in FY2021, #30 in FY2022, #49 in FY2023, #51 in FY2024 and #55 in FY2025; up 4 since Aug 2024–Jul 2025.
60	Filtration Concepts Inc. Top agencies Commerce (Department of Commerce)	$108,078	0.3%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #57 in FY2025; up 33 since Aug 2024–Jul 2025.
61	Puragen Carbones Activados, S.l. Top agencies Navy (Department of the Navy)	$107,525	0.3%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #58 in FY2025; up 34 since Aug 2024–Jul 2025.
62	Energysolutions, LLC Through Energysolutions Services Inc. Top agencies Navy (Department of the Navy)	$104,270	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63	Heico Corp Through Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$96,997	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	Atlantium Technologies Ltd Top agencies DOI (Department of the Interior)	$96,984	0.2%	Rank history: #7 in FY2021, not on the FY2022–FY2024 lists and #64 in FY2025; up 2 since Aug 2024–Jul 2025.
65	Northwest Water Conditioning Company Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$93,693	0.2%	Rank history: not on the FY2021 list, #89 in FY2022, not on the FY2023–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Dibert Valve and Fitting Company, Incorporated Top agencies Navy (Department of the Navy)	$89,809	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
67	Industrial Water Engineering Inc. Top agencies HHS (Department of Health and Human Services)	$84,087	0.2%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68	Results Sales & Service, L.L.C. Top agencies VA (Department of Veterans Affairs)	$84,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
69	Cedarville Engineering Group LLC Top agencies DOT (Department of Transportation)	$83,750	0.2%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$81,873	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Advance Water Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$79,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Cerilliant Corporation Through EMD Millipore Corp Top agencies DOI (Department of the Interior)	$78,673	0.2%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and not on the FY2025 list; up 6 since Aug 2024–Jul 2025.
73	Oceans Design Inc. Top agencies Commerce (Department of Commerce)	$76,837	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Neu-Ion, Inc. Top agencies Navy (Department of the Navy)	$70,284	0.2%	Rank history: #62 in FY2021, not on the FY2022–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
75	D&G Facility Solutions LLC Top agencies VA (Department of Veterans Affairs)	$66,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	Aviate Enterprises, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$63,312	0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #37 in FY2025; down 27 since Aug 2024–Jul 2025.
77	Katadyn North America Inc. Top agencies USAF (Department of the Air Force)	$62,118	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Resource West, Inc. Top agencies USAF (Department of the Air Force)	$60,802	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	Phigenics LLC Top agencies VA (Department of Veterans Affairs)	$60,552	0.1%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #73 in FY2025; down 7 since Aug 2024–Jul 2025.
80	Manfred Göbel E. Kfm., Inh. Steffen Stein Top agencies USAF (Department of the Air Force)	$60,164	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	Aqua-Chem, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$60,140	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #37 in FY2023, #19 in FY2024 and #33 in FY2025; down 52 since Aug 2024–Jul 2025.
82	Jafri Brothers LLC Top agencies DOS (Department of State)	$60,130	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
83	Brand Construction LLC Top agencies VA (Department of Veterans Affairs)	$59,214	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	JMG Ventures, LLC Top agencies Army (Department of the Army)	$58,500	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$57,251	0.1%	Rank history: #96 in FY2021, not on the FY2022 list, #51 in FY2023, #37 in FY2024 and #38 in FY2025; down 39 since Aug 2024–Jul 2025.
86	Bhpe LLC Top agencies DHA (Defense Health Agency)	$54,200	0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Aug 2024–Jul 2025.
87	JEM Engineering Solutions Top agencies USAF (Department of the Air Force)	$52,830	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
88	Fluid Solutions LLC Top agencies DOS (Department of State)	$51,926	0.1%	Rank history: #79 in FY2021, #29 in FY2022, not on the FY2023 list, #25 in FY2024 and #59 in FY2025; down 20 since Aug 2024–Jul 2025.
89	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$50,571	0.1%	Rank history: not on the FY2021–FY2025 lists; up 27 since Aug 2024–Jul 2025.
90	Resintech Inc. Top agencies DLA (Defense Logistics Agency)	$47,540	0.1%	Rank history: #83 in FY2021, #55 in FY2022, #82 in FY2023, #97 in FY2024 and not on the FY2025 list; up 1 since Aug 2024–Jul 2025.
91	Doane and Hartwig Water Systems, Inc. Top agencies GSA (General Services Administration)	$46,116	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Visionary Experts LLC Top agencies DOI (Department of the Interior)	$44,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Jet Inc. Top agencies DOS (Department of State)	$43,579	0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$42,597	0.1%	Rank history: not on the FY2021–FY2025 lists; up 45 since Aug 2024–Jul 2025.
95	Aloha Water Company Inc Top agencies DHS (Department of Homeland Security)	$42,359	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Ecolab Inc. Top agencies USAF (Department of the Air Force)	$42,250	0.1%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2023, not on the FY2024 list and #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
97	Draygon, LLC Top agencies DHS (Department of Homeland Security)	$42,063	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Aug 2024–Jul 2025.
98	Pure & Secure, LLC Top agencies USAGM (US Agency for Global Media)	$40,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Kleinfelder Inc Top agencies DOJ (Department of Justice)	$39,990	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Durastill Export, Inc. Top agencies DOS (Department of State)	$39,375	0.1%	Rank history: #94 in FY2021, not on the FY2022 list, #77 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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 $42.9 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Aug 2024–Jul 2025. "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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers