Top 100 Contractors in NAICS 32419: Other Petroleum and Coal Products Manufacturing, FY2023

Name: Top 100 Contractors in NAICS 32419: Other Petroleum and Coal Products Manufacturing, FY2023
Creator: GovTribe

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

The top 10 won 92% of FY2023 NAICS 32419 contract dollars

Contract obligations: $242,126,212 Net of deobligations, by contracts coded NAICS 32419 or a code under it
Contractors: 184 Parent companies with an obligation
Largest contractor: Science Applications International Corporation $191 million, 76.7% 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	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$191,497,203	76.7%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	Exxon Mobil Corp Through Exxonmobil Marine Limited Top agencies Navy (Department of the Navy)	$20,975,253	8.4%	Rank history: #2 in FY2021, #2 in FY2022, #3 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	Clean Harbors Inc Through Safety-Kleen Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$6,714,888	2.7%	Rank history: #4 in FY2021, #4 in FY2022, #7 in FY2024 and not on the FY2025 list; up 1 since FY2022.
4	Chevron Corporation Through Chevron U.s.a. Inc. Top agencies DLA (Defense Logistics Agency)	$3,662,361	1.5%	Rank history: #5 in FY2021, #3 in FY2022, #9 in FY2024 and not on the FY2025 list; down 1 since FY2022.
5	United Capital Investments Group Top agencies Navy (Department of the Navy)	$2,458,080	1.0%	Rank history: not on the FY2021 list, #6 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
6	Ryzhka International LLC Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$1,704,353	0.7%	Rank history: #8 in FY2021, #7 in FY2022, #5 in FY2024 and #4 in FY2025; up 1 since FY2022.
7	Delta Fuel Company, L.L.C. Top agencies Army (Department of the Army)	$1,242,215	0.5%	Rank history: #36 in FY2021, #8 in FY2022, #14 in FY2024 and not on the FY2025 list; up 1 since FY2022.
8	Aoclsc, Inc. Top agencies DLA (Defense Logistics Agency)	$1,019,449	0.4%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2024 and #6 in FY2025; new.
9	Next Evolution Water Solutions, Inc. Top agencies DOS (Department of State)	$781,710	0.3%	Rank history: #15 in FY2021, #10 in FY2022, #20 in FY2024 and #15 in FY2025; up 1 since FY2022.
10	Boulder Consulting & Products, LLC Top agencies Army (Department of the Army)	$750,703	0.3%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and #18 in FY2025; new.
11	Standard Bank Group Ltd Through The Standard Bank of South Africa Ltd Top agencies DOS (Department of State)	$730,553	0.3%	Rank history: not on the FY2021 list, #5 in FY2022, #13 in FY2024 and #9 in FY2025; down 6 since FY2022.
12	TV Guy Orlando, LLC Top agencies DOJ (Department of Justice)	$567,580	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	Afrifor (Private) Limited Top agencies DOS (Department of State)	$550,900	0.2%	Rank history: #34 in FY2021, #12 in FY2022, #15 in FY2024 and #10 in FY2025; down 1 since FY2022.
14	Texas Research International Inc. Through Tri / Infratech, Inc. Top agencies Navy (Department of the Navy)	$354,840	0.1%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2024–FY2025 lists; up 25 since FY2022.
15	Tayrona Investments LLC Top agencies DLA (Defense Logistics Agency)	$338,850	0.1%	Rank history: not on the FY2021 list, #24 in FY2022, not on the FY2024 list and #46 in FY2025; up 9 since FY2022.
16	Ray Blackman Enterprises, Inc. Top agencies Navy (Department of the Navy)	$331,800	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
17	Green Lantern, LLC Top agencies HHS (Department of Health and Human Services)	$327,903	0.1%	Rank history: #23 in FY2021, #20 in FY2022, #16 in FY2024 and #25 in FY2025; up 3 since FY2022.
18	Nasco Aerospace and Electronics LLC Top agencies Navy (Department of the Navy)	$316,400	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Radco Industries Inc. Top agencies DLA (Defense Logistics Agency)	$316,285	0.1%	Rank history: #16 in FY2021, #59 in FY2022, #58 in FY2024 and #33 in FY2025; up 40 since FY2022.
20	Blazing Aviation LLC Top agencies USAF (Department of the Air Force)	$301,156	0.1%	Rank history: not on the FY2021 list, #19 in FY2022, #18 in FY2024 and #56 in FY2025; down 1 since FY2022.
21	Advantage Dist. LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) DLA (Defense Logistics Agency)	$283,854	0.1%	Rank history: #28 in FY2021, #96 in FY2022, not on the FY2024 list and #61 in FY2025; up 75 since FY2022.
22	Brenntag NV 2 awardees, including Coastal Chemical Co., L.L.C. and Brenntag Lubricants LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$239,879	0.1%	Rank history: #19 in FY2021, #13 in FY2022, #49 in FY2024 and not on the FY2025 list; down 9 since FY2022.
23	Broco Oil Inc. Top agencies VA (Department of Veterans Affairs)	$226,532	0.1%	Rank history: #96 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
24	Inc.. A Close Corporation Tatum Oil Top agencies Army (Department of the Army)	$201,274	0.1%	Rank history: #87 in FY2021, #33 in FY2022, #48 in FY2024 and #44 in FY2025; up 9 since FY2022.
25	Lott Oil Co, Inc. Top agencies Army (Department of the Army)	$197,119	0.1%	Rank history: #18 in FY2021, #23 in FY2022, not on the FY2024 list and #34 in FY2025; down 2 since FY2022.
26	UNO El Salvador SA Top agencies DOS (Department of State)	$180,570	0.1%	Rank history: not on the FY2021 list, #31 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
27	A.m.s. Network, LLC 3 awardees Top agencies DLA (Defense Logistics Agency)	$167,896	0.1%	Rank history: #24 in FY2021, #18 in FY2022, #24 in FY2024 and #12 in FY2025; down 9 since FY2022.
28	Clipper Oil, Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army) Commerce (Department of Commerce)	$166,556	0.1%	Rank history: #30 in FY2021, #37 in FY2022, #19 in FY2024 and #17 in FY2025; up 9 since FY2022.
29	California Marine Cleaning, Inc. Through Washington Marine Cleaning LLC Top agencies Navy (Department of the Navy)	$164,697	0.1%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and not on the FY2025 list; new.
30	Sky Mart Sales Corp. Top agencies DLA (Defense Logistics Agency)	$151,189	0.1%	Rank history: #11 in FY2021, #15 in FY2022, not on the FY2024 list and #68 in FY2025; down 15 since FY2022.
31	Inter-State Oil Co Top agencies DOI (Department of the Interior)	$149,155	0.1%	Rank history: not on the FY2021 list, #44 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
32	Clairco Tool Co Top agencies Army (Department of the Army)	$128,388	0.1%	Rank history: not on the FY2021 list, #41 in FY2022, #41 in FY2024 and #19 in FY2025; up 9 since FY2022.
33	BRW Consulting, LLC Top agencies DLA (Defense Logistics Agency)	$126,534	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Litco Petroleum Inc. Through Best-Wade Petroleum Inc. Top agencies Army (Department of the Army)	$120,032	<0.1%	Rank history: #90 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
35	A&T Top agencies DOS (Department of State)	$119,898	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and not on the FY2025 list; new.
36	Advanced Lubrication Inc. Top agencies DHS (Department of Homeland Security)	$116,731	<0.1%	Rank history: #33 in FY2021, #34 in FY2022, #27 in FY2024 and #23 in FY2025; down 2 since FY2022.
37	Jbl.-Prs. JV LLC Top agencies VA (Department of Veterans Affairs)	$96,345	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2024 and #88 in FY2025; new.
38	Fuchs Lubricants Co. 2 awardees Top agencies Army (Department of the Army)	$89,699	<0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2024 and #72 in FY2025; new.
39	Traxbel Through Forax N.V. Top agencies DOS (Department of State)	$78,132	<0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #65 in FY2024 and not on the FY2025 list; up 56 since FY2022.
40	Allegheny Petroleum Products Co Top agencies DLA (Defense Logistics Agency)	$72,690	<0.1%	Rank history: #17 in FY2021, #9 in FY2022, not on the FY2024 list and #14 in FY2025; down 31 since FY2022.
41	Mo Enterprises Top agencies Army (Department of the Army)	$72,400	<0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and not on the FY2025 list; new.
42	World Fuel Services Corporation 2 awardees, including Papco, Inc. Top agencies Navy (Department of the Navy)	$71,597	<0.1%	Rank history: #72 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
43	Aerospace Lubricants, Llc. Top agencies DOT (Department of Transportation)	$71,219	<0.1%	Rank history: #39 in FY2021, #47 in FY2022, #47 in FY2024 and not on the FY2025 list; up 4 since FY2022.
44	J2 Systems & Supply LLC Top agencies Army (Department of the Army)	$70,888	<0.1%	Rank history: #47 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
45	Hightowers Petroleum Company Top agencies Army (Department of the Army)	$61,094	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Petroleum Sales Inc. Top agencies DOI (Department of the Interior)	$60,600	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	SOC Energy Inc. Top agencies DOI (Department of the Interior)	$60,424	<0.1%	Rank history: #51 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
48	Rebel Oil Company Incorporated Top agencies DOI (Department of the Interior)	$57,635	<0.1%	Rank history: #43 in FY2021, #42 in FY2022, #31 in FY2024 and not on the FY2025 list; down 6 since FY2022.
49	Lyden Oil Company Top agencies Army (Department of the Army)	$57,388	<0.1%	Rank history: #52 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
50	Young Sounds LLC Top agencies Navy (Department of the Navy)	$57,256	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 96 since FY2022.
51	Glander International Bunkering Inc. Through KPI Oceanconnect Inc. Top agencies DLA (Defense Logistics Agency)	$56,352	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Waring Oil Company LLC Top agencies Army (Department of the Army)	$55,416	<0.1%	Rank history: #82 in FY2021, not on the FY2022 list, #17 in FY2024 and #39 in FY2025; up 57 since FY2022.
53	Petroleum Service Co Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$54,990	<0.1%	Rank history: not on the FY2021 list, #45 in FY2022, #63 in FY2024 and not on the FY2025 list; down 8 since FY2022.
54	Native American Transformer Services Inc. Top agencies DOI (Department of the Interior)	$52,960	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	Pa Consulting LLC Top agencies DOS (Department of State)	$52,819	<0.1%	Rank history: not on the FY2021 list, #68 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
56	Cail Tool & Machinery, Inc. Top agencies USAF (Department of the Air Force) GSA (General Services Administration)	$49,645	<0.1%	Rank history: #50 in FY2021, #40 in FY2022, #75 in FY2024 and not on the FY2025 list; down 16 since FY2022.
57	UEI VSK1PFVSMSA7 Top agencies DOS (Department of State)	$48,994	<0.1%	Rank history: #71 in FY2021, #49 in FY2022, #60 in FY2024 and not on the FY2025 list; down 8 since FY2022.
58	ST. Paul Fuel LLC Top agencies Commerce (Department of Commerce)	$47,812	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
59	Aci-Lubesco Top agencies Army (Department of the Army) Navy (Department of the Navy)	$47,666	<0.1%	Rank history: #75 in FY2021, not on the FY2022 list, #39 in FY2024 and #43 in FY2025; up 85 since FY2022.
60	Gadsden Industrial Distributors, Inc. Top agencies Army (Department of the Army)	$45,360	<0.1%	Rank history: #58 in FY2021, #46 in FY2022, #22 in FY2024 and #32 in FY2025; down 14 since FY2022.
61	Kimbro Oil Company Top agencies Army (Department of the Army)	$44,581	<0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #32 in FY2024 and #20 in FY2025; down 23 since FY2022.
62	Glenn Oil Company LLC Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$43,674	<0.1%	Rank history: #86 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
63	Ibide Corporation Top agencies DLA (Defense Logistics Agency)	$43,667	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #57 in FY2025; up 79 since FY2022.
64	Merrimac Petroleum, Inc. Top agencies DOI (Department of the Interior)	$41,638	<0.1%	Rank history: #44 in FY2021, #35 in FY2022, #82 in FY2024 and #93 in FY2025; down 29 since FY2022.
65	Ursource, Inc. Top agencies DLA (Defense Logistics Agency)	$41,363	<0.1%	Rank history: not on the FY2021 list, #22 in FY2022, #40 in FY2024 and #83 in FY2025; down 43 since FY2022.
66	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$40,736	<0.1%	Rank history: #57 in FY2021, #51 in FY2022, #100 in FY2024 and #50 in FY2025; down 15 since FY2022.
67	Commemorative Air Force Top agencies USAF (Department of the Air Force)	$38,286	<0.1%	Rank history: #70 in FY2021, #78 in FY2022, not on the FY2024 list and #51 in FY2025; up 11 since FY2022.
68	Pacific States Petroleum, Inc. Top agencies Army (Department of the Army)	$37,500	<0.1%	Rank history: #88 in FY2021, #64 in FY2022, not on the FY2024 list and #89 in FY2025; down 4 since FY2022.
69	MBC Products, Inc. Top agencies Treasury (Department of the Treasury)	$37,235	<0.1%	Rank history: not on the FY2021 list, #81 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
70	Parker Oil Products Inc Top agencies DOI (Department of the Interior)	$36,000	<0.1%	Rank history: not on the FY2021 list, #61 in FY2022, not on the FY2024 list and #75 in FY2025; down 9 since FY2022.
71	Fuelman Inc Top agencies DOI (Department of the Interior)	$35,115	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Petroblend Corp. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$33,204	<0.1%	Rank history: #32 in FY2021, not on the FY2022 list, #59 in FY2024 and #16 in FY2025; up 40 since FY2022.
73	Tyree Oil, Inc. Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$32,138	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 53 since FY2022.
74	Barr Distributing Company, Inc. Top agencies DOI (Department of the Interior)	$31,696	<0.1%	Rank history: #98 in FY2021, #87 in FY2022, #73 in FY2024 and #95 in FY2025; up 13 since FY2022.
75	Regional International Corp Through Regional Defense Services, LLC Top agencies Army (Department of the Army)	$31,651	<0.1%	Rank history: #84 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 33 since FY2022.
76	Sewell Oil Company Inc. Top agencies DOI (Department of the Interior)	$30,000	<0.1%	Rank history: #69 in FY2021, #69 in FY2022, #64 in FY2024 and not on the FY2025 list; down 7 since FY2022.
77	Steven Industries Inc. Top agencies DLA (Defense Logistics Agency)	$29,710	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Igcs, LLC Top agencies Treasury (Department of the Treasury)	$28,094	<0.1%	Rank history: not on the FY2021 list, #36 in FY2022, #38 in FY2024 and #78 in FY2025; down 42 since FY2022.
79	Davis Paint Co Top agencies DLA (Defense Logistics Agency)	$26,674	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Sealing Specialists & Service Co Top agencies Navy (Department of the Navy)	$25,868	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and not on the FY2025 list; new.
81	The Sherwin-Williams Company 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$25,594	<0.1%	Rank history: #46 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
82	Cherokee Services, LLC Top agencies Commerce (Department of Commerce)	$24,812	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
83	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$24,208	<0.1%	Rank history: #73 in FY2021, not on the FY2022 list, #71 in FY2024 and #45 in FY2025; up 28 since FY2022.
84	One Stop Industries, LLC Top agencies Army (Department of the Army)	$24,090	<0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; new.
85	Best Oil LLC Top agencies USDA (Department of Agriculture)	$24,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Hawaiian Isles Petroleum, L.L.C. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$22,999	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #90 in FY2025; new.
87	Artech Packaging LLC Top agencies DLA (Defense Logistics Agency)	$22,284	<0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and not on the FY2025 list; new.
88	SSI Lubricants, LLC Top agencies Army (Department of the Army)	$21,569	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Govaged Inc. Top agencies DHS (Department of Homeland Security)	$21,410	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	SDB Consultants, Ltd. Top agencies DLA (Defense Logistics Agency)	$21,256	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 29 since FY2022.
91	Bakoor Company for General TRA Ding and Construction Top agencies DOS (Department of State)	$19,335	<0.1%	Rank history: not on the FY2021 list, #75 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
92	Pynergy LLC Top agencies Army (Department of the Army)	$18,425	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Ramos Oil Co., Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$17,907	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 35 since FY2022.
94	The Robert F. Flood Supply Corp Top agencies Treasury (Department of the Treasury)	$17,617	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 40 since FY2022.
95	Omni Lubricants Limited Top agencies DLA (Defense Logistics Agency)	$17,391	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 37 since FY2022.
96	Up Enterprises LLC Top agencies Navy (Department of the Navy)	$17,380	<0.1%	Rank history: #68 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 9 since FY2022.
97	Specialty Coatings, Inc. Top agencies DLA (Defense Logistics Agency)	$17,248	<0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2024 and #99 in FY2025; up 44 since FY2022.
98	Northdale Oil Inc. Top agencies Army (Department of the Army)	$17,025	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #86 in FY2025; new.
99	NK Servis Top agencies DOS (Department of State)	$16,995	<0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and not on the FY2025 list; new.
100	Cummins Inc. Top agencies DOJ (Department of Justice)	$15,084	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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100 of 184 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 32419

Code	Net obligations	Largest contractor
324191 Petroleum Lubricating Oil and Grease Manufacturing	$238,758,686	Science Applications International Corporation
324199 All Other Petroleum and Coal Products Manufacturing	$3,367,526	Boulder Consulting & Products, 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 $250 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 NAICS 32419 contractors in FY2023?

1. Science Applications International Corporation ($191M), 2. Exxon Mobil Corp ($21M), 3. Clean Harbors Inc ($6.71M), 4. Chevron Corporation ($3.66M), 5. United Capital Investments Group ($2.46M), 6. Ryzhka International LLC ($1.7M), 7. Delta Fuel Company, L.L.C. ($1.24M), 8. Aoclsc, Inc. ($1.02M), 9. Next Evolution Water Solutions, Inc. ($782K), 10. Boulder Consulting & Products, LLC ($751K).

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