Top 100 Contractors in NAICS 32519: Other Basic Organic Chemical Manufacturing, FY2025

Name: Top 100 Contractors in NAICS 32519: Other Basic Organic Chemical Manufacturing, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 49% of FY2025 NAICS 32519 contract dollars

Contract obligations: $22,049,098 Net of deobligations, by contracts coded NAICS 32519 or a code under it
Contractors: 137 Parent companies with an obligation
Largest contractor: Monument Chemical Houston LLC $2.89 million, 12.7% 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	Monument Chemical Houston LLC Top agencies DLA (Defense Logistics Agency)	$2,892,250	12.7%	Rank history: not on the FY2021–FY2024 lists; new.
2	City Chemical LLC Top agencies Navy (Department of the Navy)	$1,714,359	7.5%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023 and #4 in FY2024; up 2 since FY2024.
3	Ziegler Chemical & Mineral Corp Top agencies Army (Department of the Army)	$1,007,417	4.4%	Rank history: not on the FY2021–FY2024 lists; new.
4	Resintech Inc. Top agencies Navy (Department of the Navy)	$992,261	4.4%	Rank history: #3 in FY2021, #5 in FY2022, #1 in FY2023 and #5 in FY2024; up 1 since FY2024.
5	Tangram Chemical LLC Top agencies Navy (Department of the Navy)	$821,922	3.6%	Rank history: #5 in FY2021, #4 in FY2022, #2 in FY2023 and #11 in FY2024; up 6 since FY2024.
6	Aurorium LLC Top agencies Navy (Department of the Navy)	$799,948	3.5%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; unchanged since FY2024.
7	Maryland Chemical Company, Inc. Top agencies Navy (Department of the Navy)	$788,735	3.5%	Rank history: not on the FY2021 list, #51 in FY2022, #16 in FY2023 and #3 in FY2024; down 4 since FY2024.
8	Dynasty Chemical Corp Top agencies Army (Department of the Army)	$743,106	3.3%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 6 since FY2024.
9	Arxada LLC Top agencies Treasury (Department of the Treasury)	$675,814	3.0%	Rank history: not on the FY2021–FY2024 lists; new.
10	High Valley Products, Inc. Top agencies USAF (Department of the Air Force)	$653,352	2.9%	Rank history: not on the FY2021–FY2024 lists; new.
11	Integrated Procurement Technologies Top agencies Navy (Department of the Navy)	$636,387	2.8%	Rank history: not on the FY2021–FY2024 lists; new.
12	Shilog, Ltd Top agencies Army (Department of the Army)	$545,088	2.4%	Rank history: not on the FY2021–FY2024 lists; up 94 since FY2024.
13	Island Pyrochemical Industries Corp Top agencies Army (Department of the Army) Navy (Department of the Navy)	$499,816	2.2%	Rank history: #38 in FY2021, not on the FY2022 list, #18 in FY2023 and #8 in FY2024; down 5 since FY2024.
14	PPD Development LP 2 awardees, including Life Technologies Corporation and Fisher Scientific Company L.L.C. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$479,147	2.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #30 in FY2024; up 16 since FY2024.
15	Leonardo S.p.A. Through DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy)	$473,761	2.1%	Rank history: not on the FY2021–FY2024 lists; new.
16	Government Scientific Source Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$464,409	2.0%	Rank history: #7 in FY2021, #13 in FY2022, #5 in FY2023 and #12 in FY2024; down 4 since FY2024.
17	Seco Group, LLC Top agencies Navy (Department of the Navy) Treasury (Department of the Treasury)	$405,895	1.8%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 6 since FY2024.
18	Chem-Trade International Inc. Top agencies Navy (Department of the Navy)	$396,900	1.7%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2023–FY2024 lists; returned.
19	NCA Solutions, LLC Top agencies Army (Department of the Army)	$387,200	1.7%	Rank history: not on the FY2021 list, #9 in FY2022, #28 in FY2023 and #17 in FY2024; down 2 since FY2024.
20	Gasochem International, Llc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$354,938	1.6%	Rank history: #37 in FY2021, #52 in FY2022, #31 in FY2023 and #18 in FY2024; down 2 since FY2024.
21	Momar, Incorporated Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$303,271	1.3%	Rank history: not on the FY2021 list, #11 in FY2022, #10 in FY2023 and #9 in FY2024; down 12 since FY2024.
22	Oerlikon Metco (US) Inc. Top agencies USAF (Department of the Air Force)	$283,320	1.2%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 15 since FY2024.
23	Scentry Biologicals, Inc. Top agencies USDA (Department of Agriculture)	$278,000	1.2%	Rank history: not on the FY2021 list, #24 in FY2022, #11 in FY2023 and #20 in FY2024; down 3 since FY2024.
24	KAP Technochem Usa, Inc. Top agencies Army (Department of the Army)	$252,717	1.1%	Rank history: #8 in FY2021, #41 in FY2022, #7 in FY2023 and not on the FY2024 list; returned.
25	Polydyne Inc. Top agencies Army (Department of the Army)	$248,400	1.1%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; up 15 since FY2024.
26	Polysciences Inc. Top agencies Navy (Department of the Navy)	$244,950	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
27	Powder Alloy Corporation Top agencies USAF (Department of the Air Force)	$237,150	1.0%	Rank history: #13 in FY2021, #58 in FY2022, #12 in FY2023 and #10 in FY2024; down 17 since FY2024.
28	KKR & Co. Inc. Through Biosearch Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$232,883	1.0%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023 and #37 in FY2024; up 9 since FY2024.
29	Diazyme Laboratories Inc. Through General Atomics International Services Corp Top agencies USAF (Department of the Air Force)	$215,764	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
30	Pacific Star Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$208,131	0.9%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 24 since FY2024.
31	Sae Manufacturing Specialties Corp. Top agencies Army (Department of the Army)	$184,610	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
32	Teledyne Technologies Incorporated Through Teledyne Flir Defense, LLC Top agencies DOT (Department of Transportation)	$182,960	0.8%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; down 11 since FY2024.
33	Lake Shore Systems Inc. Top agencies Navy (Department of the Navy)	$166,455	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
34	AQW Inc. Top agencies DLA (Defense Logistics Agency)	$164,827	0.7%	Rank history: #40 in FY2021, #27 in FY2022, #34 in FY2023 and #60 in FY2024; up 26 since FY2024.
35	EWA Direction Inc. Top agencies VA (Department of Veterans Affairs)	$159,144	0.7%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #32 in FY2024; down 3 since FY2024.
36	Cyclope Bio SL Top agencies HHS (Department of Health and Human Services)	$140,000	0.6%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 6 since FY2024.
37	Cerilliant Corporation 2 awardees Top agencies DHA (Defense Health Agency)	$138,706	0.6%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; down 15 since FY2024.
38	Cayman Chemical Co Inc. Top agencies DOJ (Department of Justice) DHA (Defense Health Agency)	$121,114	0.5%	Rank history: #9 in FY2021, #18 in FY2022, #14 in FY2023 and #19 in FY2024; down 19 since FY2024.
39	Aquaphoenix Scientific LLC Top agencies Navy (Department of the Navy)	$114,500	0.5%	Rank history: #34 in FY2021, #95 in FY2022, #29 in FY2023 and #72 in FY2024; up 33 since FY2024.
40	EP Scientific Products LLC Top agencies DOI (Department of the Interior)	$113,893	0.5%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2024 list; returned.
41	Linde Inc. Through Linde Advanced Material Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$108,800	0.5%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 6 since FY2024.
42	Otsuka Holdings Co. Ltd. Through Cambridge Isotope Laboratories, Inc. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency)	$105,831	0.5%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 4 since FY2024.
43	MIT Holdings LLC Top agencies Navy (Department of the Navy)	$101,828	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
44	Ecolink Inc. Top agencies Treasury (Department of the Treasury)	$93,444	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #31 in FY2024; down 13 since FY2024.
45	Osung Enterprise Top agencies USAF (Department of the Air Force)	$93,136	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
46	Wayne State University Top agencies Navy (Department of the Navy)	$91,850	0.4%	Rank history: #18 in FY2021, #20 in FY2022, not on the FY2023 list and #28 in FY2024; down 18 since FY2024.
47	Saint-Gobain Ceramics & Plastics Inc Top agencies USAF (Department of the Air Force)	$86,910	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
48	Warner Graham LLLP Top agencies HHS (Department of Health and Human Services)	$86,171	0.4%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 43 since FY2024.
49	Fuchs Lubricants Co. Top agencies Army (Department of the Army)	$82,125	0.4%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 43 since FY2024.
50	Miles Ahead Distribution, Inc. Top agencies Treasury (Department of the Treasury)	$75,445	0.3%	Rank history: #53 in FY2021, #57 in FY2022, #15 in FY2023 and #27 in FY2024; down 23 since FY2024.
51	Caes Systems LLC Top agencies Navy (Department of the Navy)	$75,000	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
52	K.r. Campbell, Inc. Top agencies Navy (Department of the Navy)	$72,675	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
53	RCG of North Carolina, LLC Top agencies Navy (Department of the Navy)	$72,034	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	Ecolab Inc. Through Nalco Company LLC Top agencies Army (Department of the Army)	$67,935	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
55	VHG Labs Inc. Top agencies Navy (Department of the Navy)	$64,052	0.3%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 7 since FY2024.
56	CE Water Management Inc. Top agencies Army (Department of the Army)	$49,948	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
57	Kurita America Inc. Top agencies VA (Department of Veterans Affairs)	$49,564	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
58	10X Genomics, Inc. Top agencies VA (Department of Veterans Affairs)	$37,975	0.2%	Rank history: #74 in FY2021, #29 in FY2022, not on the FY2023 list and #38 in FY2024; down 20 since FY2024.
59	Fisher Scientific Company L.L.C. Top agencies DOI (Department of the Interior)	$37,299	0.2%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; up 11 since FY2024.
60	Patz Materials and Technologies LLC Top agencies NASA (National Aeronautics and Space Administration)	$36,694	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
61	Stateline Solution LLC Top agencies USAF (Department of the Air Force)	$34,860	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
62	Phigenics LLC Top agencies DHA (Defense Health Agency)	$34,678	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 2 since FY2024.
63	Nasco Aerospace and Electronics LLC Top agencies Navy (Department of the Navy)	$32,750	0.1%	Rank history: #66 in FY2021 and not on the FY2022–FY2024 lists; up 63 since FY2024.
64	Premier Trading Company, LLC Top agencies Army (Department of the Army)	$32,340	0.1%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #16 in FY2024; down 48 since FY2024.
65	International Chemstar Incorporated Top agencies DLA (Defense Logistics Agency)	$31,890	0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and #66 in FY2024; up 1 since FY2024.
66	Professional Finishing Systems & Supplies, Inc. Top agencies Treasury (Department of the Treasury)	$30,398	0.1%	Rank history: #97 in FY2021, not on the FY2022 list, #73 in FY2023 and #88 in FY2024; up 22 since FY2024.
67	United Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$30,360	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Hughes Corp Top agencies Navy (Department of the Navy)	$28,697	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Slack Chemical Co Inc Top agencies Army (Department of the Army)	$26,315	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Seneca Mineral Company Top agencies USAF (Department of the Air Force)	$26,160	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and not on the FY2024 list; returned.
71	Plating International Inc. Top agencies Army (Department of the Army)	$25,636	0.1%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and not on the FY2024 list; up 38 since FY2024.
72	Alpha Scents Inc Top agencies USDA (Department of Agriculture)	$25,200	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	General Electric Company Through GE Precision Healthcare LLC Top agencies HHS (Department of Health and Human Services)	$25,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Snow & Ice Salt & Chemicals Unlimited, LLC Top agencies Army (Department of the Army)	$24,012	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	Arhab LLC Top agencies Army (Department of the Army)	$23,080	0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; down 12 since FY2024.
76	American Chemical and Equipment, Inc. Top agencies Army (Department of the Army)	$22,352	0.1%	Rank history: #77 in FY2021, not on the FY2022–FY2023 lists and #50 in FY2024; down 26 since FY2024.
77	Mach I, Inc. Top agencies Navy (Department of the Navy)	$22,350	0.1%	Rank history: #16 in FY2021 and not on the FY2022–FY2024 lists; returned.
78	GMS International Corporation Top agencies Navy (Department of the Navy)	$20,970	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Chemceed, LLC Top agencies Treasury (Department of the Treasury)	$20,600	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #100 in FY2023 and #89 in FY2024; up 10 since FY2024.
80	Danaher Corporation Through Integrated DNA Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$20,216	0.1%	Rank history: #2 in FY2021, #3 in FY2022, #6 in FY2023 and not on the FY2024 list; returned.
81	The Washington University Top agencies HHS (Department of Health and Human Services)	$19,962	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	CP North America LLC Top agencies Navy (Department of the Navy)	$19,934	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	Environmental Operating Solutions Inc. Top agencies USAF (Department of the Air Force)	$19,204	0.1%	Rank history: #81 in FY2021, #71 in FY2022, #62 in FY2023 and #93 in FY2024; up 10 since FY2024.
84	Treadwell Corporation (Delaware) Top agencies Navy (Department of the Navy)	$18,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Jo-Kell Inc. Top agencies Navy (Department of the Navy)	$17,958	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Tower Products LLC Top agencies Treasury (Department of the Treasury)	$17,582	0.1%	Rank history: #33 in FY2021, #53 in FY2022, #54 in FY2023 and #55 in FY2024; down 31 since FY2024.
87	Kpaul Properties LLC Top agencies Navy (Department of the Navy)	$16,748	0.1%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2023–FY2024 lists; returned.
88	NCH Corporation Top agencies Treasury (Department of the Treasury)	$16,682	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #90 in FY2024; up 2 since FY2024.
89	Novandi Chemistry AB Top agencies HHS (Department of Health and Human Services)	$16,650	0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #88 in FY2023 and not on the FY2024 list; up 12 since FY2024.
90	Aft Prime Partners LLC Top agencies Army (Department of the Army)	$16,632	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	A.m.s. Network, LLC Top agencies DLA (Defense Logistics Agency)	$15,018	0.1%	Rank history: not on the FY2021–FY2024 lists; up 27 since FY2024.
92	Rochester Midland Corporation Top agencies HHS (Department of Health and Human Services)	$14,978	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Chemrite Inc. Top agencies USDA (Department of Agriculture)	$14,385	0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #51 in FY2023 and #84 in FY2024; down 9 since FY2024.
94	Kampi Components Co Inc. Top agencies Navy (Department of the Navy)	$14,014	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Suncore Distribution LLC Top agencies Army (Department of the Army)	$13,840	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$13,710	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and not on the FY2024 list; returned.
97	Unitec Systems, Inc. Top agencies Navy (Department of the Navy)	$13,185	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Teledyne Flir Defense, LLC Top agencies DOT (Department of Transportation)	$13,174	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Brenntag Pacific Inc Top agencies Treasury (Department of the Treasury)	$12,870	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	General Nuclear Corp Top agencies Navy (Department of the Navy)	$12,096	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 137 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 32519

Code	Net obligations	Largest contractor
325199 All Other Basic Organic Chemical Manufacturing	$21,958,528	Monument Chemical Houston 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 $22.8 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 32519 contractors in FY2025?

1. Monument Chemical Houston LLC ($2.89M), 2. City Chemical LLC ($1.71M), 3. Ziegler Chemical & Mineral Corp ($1.01M), 4. Resintech Inc. ($992K), 5. Tangram Chemical LLC ($822K), 6. Aurorium LLC ($800K), 7. Maryland Chemical Company, Inc. ($789K), 8. Dynasty Chemical Corp ($743K), 9. Arxada LLC ($676K), 10. High Valley Products, Inc. ($653K).

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