Top 100 Contractors in PSC 6630: Chemical Analysis Instruments, FY2025

Name: Top 100 Contractors in PSC 6630: Chemical Analysis Instruments, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 74% of FY2025 PSC 6630 contract dollars

Contract obligations: $212,962,568 Net of deobligations, by contracts coded PSC 6630
Contractors: 244 Parent companies with an obligation
Largest contractor: D-2 Incorporated $40.8 million, 17.9% of obligations
Data as of: Oct 23, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	D-2 Incorporated Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$40,812,125	17.9%	Rank history: #74 in FY2021 and not on the FY2022–FY2024 lists; up 130 since FY2024.
2	Danaher Corporation 5 awardees, including Beckman Coulter, Inc., Cepheid and Sea-Bird Electronics, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$31,321,445	13.7%	Rank history: #1 in FY2021, #3 in FY2022, #1 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Abbott Laboratories Inc. 3 awardees, including Abbott Molecular Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DHA (Defense Health Agency)	$24,391,592	10.7%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #1 in FY2024; down 2 since FY2024.
4	Roche Holdings Inc. Through Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$19,286,550	8.4%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; up 3 since FY2024.
5	CHG Group Inc Through Chemring Sensors and Electronic Systems, Inc. Top agencies Army (Department of the Army)	$15,601,305	6.8%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #3 in FY2024; down 2 since FY2024.
6	Siemens Corporation Through Siemens Healthcare Diagnostics Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$10,545,715	4.6%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 1 since FY2024.
7	Government Scientific Source Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$9,312,092	4.1%	Rank history: #13 in FY2021, #17 in FY2022, #9 in FY2023 and #11 in FY2024; up 4 since FY2024.
8	GTA Containers, LLC Top agencies Army (Department of the Army)	$7,260,231	3.2%	Rank history: not on the FY2021–FY2024 lists; new.
9	Scitech Services Inc. Top agencies Army (Department of the Army)	$6,699,561	2.9%	Rank history: not on the FY2021–FY2024 lists; new.
10	Federal Resources Supply Company, LLC Top agencies DOS (Department of State) DOJ (Department of Justice) DHS (Department of Homeland Security)	$4,533,162	2.0%	Rank history: #35 in FY2021, #11 in FY2022, #10 in FY2023 and #30 in FY2024; up 20 since FY2024.
11	Mountain Horse LLC Top agencies Army (Department of the Army)	$3,829,643	1.7%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #29 in FY2024; up 18 since FY2024.
12	Telectro-Mek Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$3,475,721	1.5%	Rank history: #17 in FY2021, #19 in FY2022, #33 in FY2023 and #31 in FY2024; up 19 since FY2024.
13	Ortho-Clinical Diagnostics Inc. 2 awardees Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,592,559	1.1%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 1 since FY2024.
14	Thermo Fisher Scientific Inc. 5 awardees, including Thermo Electron North America LLC, Thermo Fisher Scientific (Asheville) LLC and Fisher Scientific Company L.L.C. Top agencies Navy (Department of the Navy) DOE (Department of Energy) VA (Department of Veterans Affairs)	$2,588,169	1.1%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and #18 in FY2024; up 4 since FY2024.
15	Tecan U.S. Group Inc. Through Tecan U.s., Inc. Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$2,100,854	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
16	Polymedco LLC 2 awardees, including Polymedco Cancer Diagnostic Products LLC Top agencies VA (Department of Veterans Affairs)	$1,626,556	0.7%	Rank history: #44 in FY2021, #20 in FY2022, #20 in FY2023 and #23 in FY2024; up 7 since FY2024.
17	Diagnostica Stago Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,430,616	0.6%	Rank history: not on the FY2021–FY2024 lists; up 95 since FY2024.
18	Bruker Scientific LLC 2 awardees, including Bruker Biospin Corp Top agencies Navy (Department of the Navy)	$1,388,957	0.6%	Rank history: #16 in FY2021, not on the FY2022 list, #30 in FY2023 and #28 in FY2024; up 10 since FY2024.
19	Tosoh Bioscience, Inc. Top agencies VA (Department of Veterans Affairs)	$1,144,840	0.5%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2024; up 33 since FY2024.
20	Agilent Technologies, Inc. Top agencies EPA (Environmental Protection Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$868,177	0.4%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; down 7 since FY2024.
21	Biofire Defense LLC 3 awardees, including Biomerieux Inc. and Biofire Diagnostics LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) DTRA (Defense Threat Reduction Agency)	$791,344	0.3%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 6 since FY2024.
22	Sysmex America Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$733,408	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 15 since FY2024.
23	Thermo Electron Corporation Through Fisher Scientific Company L.L.C. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) EPA (Environmental Protection Agency)	$706,966	0.3%	Rank history: #5 in FY2021, #6 in FY2022, #6 in FY2023 and not on the FY2024 list; up 237 since FY2024.
24	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$694,598	0.3%	Rank history: #31 in FY2021, #39 in FY2022, #98 in FY2023 and not on the FY2024 list; up 223 since FY2024.
25	Leco Corp Top agencies Navy (Department of the Navy) Army (Department of the Army)	$627,802	0.3%	Rank history: not on the FY2021 list, #67 in FY2022, #38 in FY2023 and not on the FY2024 list; up 184 since FY2024.
26	Caitta Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$569,510	0.2%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 46 since FY2024.
27	Franklin Young International, Incorporated Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) USDA (Department of Agriculture)	$566,556	0.2%	Rank history: #22 in FY2021, #15 in FY2022, #44 in FY2023 and #16 in FY2024; down 11 since FY2024.
28	Tri Airtesting Inc. Top agencies Navy (Department of the Navy)	$490,105	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 49 since FY2024.
29	Syft Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$459,424	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
30	Sebia, Inc. Top agencies DHA (Defense Health Agency)	$446,839	0.2%	Rank history: #48 in FY2021, #47 in FY2022, #70 in FY2023 and not on the FY2024 list; returned.
31	Sparc Research LLC Through Design Integrated Technology, Inc. Top agencies USAF (Department of the Air Force)	$438,690	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
32	Samyak Solutions, Inc. Top agencies Treasury (Department of the Treasury) USDA (Department of Agriculture) DHA (Defense Health Agency)	$431,508	0.2%	Rank history: #36 in FY2021, not on the FY2022 list, #99 in FY2023 and #69 in FY2024; up 37 since FY2024.
33	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$408,304	0.2%	Rank history: #39 in FY2021, #35 in FY2022, #61 in FY2023 and #53 in FY2024; up 20 since FY2024.
34	Werfen USA LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$401,561	0.2%	Rank history: #25 in FY2021, #40 in FY2022, #40 in FY2023 and not on the FY2024 list; up 233 since FY2024.
35	Ortho Clinical Diagnostics K.K. Top agencies DHA (Defense Health Agency)	$388,132	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
36	Integrated Procurement Technologies 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$380,799	0.2%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2023–FY2024 lists; returned.
37	Picarro, Inc. Top agencies Commerce (Department of Commerce) DOI (Department of the Interior)	$356,307	0.2%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; down 15 since FY2024.
38	Ametek Inc. 4 awardees, including Spectro Scientific, Inc., Advanced Measurement Technology Inc. and Ametek Arizona Instrument LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) EPA (Environmental Protection Agency)	$352,640	0.2%	Rank history: #40 in FY2021, not on the FY2022–FY2023 lists and #73 in FY2024; up 35 since FY2024.
39	DC Scientific, Inc. Top agencies USAF (Department of the Air Force)	$343,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #51 in FY2024; up 12 since FY2024.
40	Itin Scale Co., Inc. Top agencies USDA (Department of Agriculture)	$339,586	0.1%	Rank history: not on the FY2021–FY2024 lists; up 204 since FY2024.
41	Roper Technologies Inc. 2 awardees, including Precision Analyzer Company L.P. and Cambridge Viscosity Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$320,670	0.1%	Rank history: not on the FY2021–FY2024 lists; up 83 since FY2024.
42	Aviation Laboratories, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$319,415	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
43	Femtotools AG Top agencies Army (Department of the Army)	$295,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
44	Hopewell Designs, Inc. Top agencies USAF (Department of the Air Force)	$287,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
45	Entech Instruments, Inc. Top agencies EPA (Environmental Protection Agency) GSA (General Services Administration)	$274,770	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, #96 in FY2023 and not on the FY2024 list; up 68 since FY2024.
46	Thermal Hazard Technology Inc. Top agencies Navy (Department of the Navy)	$273,865	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
47	Surforce, LLC Top agencies Army (Department of the Army)	$266,595	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
48	TSI Incorporated Top agencies Navy (Department of the Navy) Army (Department of the Army)	$259,549	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	Cerilliant Corporation Through EMD Millipore Corp Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$247,833	0.1%	Rank history: not on the FY2021–FY2024 lists; up 204 since FY2024.
50	Technical Communities, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$247,771	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, #32 in FY2023 and #42 in FY2024; down 8 since FY2024.
51	Immucor Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$245,843	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
52	Anton Paar USA Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$237,504	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
53	Aantilia LLC Top agencies Army (Department of the Army)	$232,573	0.1%	Rank history: #32 in FY2021, not on the FY2022 list, #88 in FY2023 and not on the FY2024 list; up 62 since FY2024.
54	Abbott Molecular Inc. Top agencies VA (Department of Veterans Affairs)	$232,152	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
55	Teledyne Flir Unmanned Ground Systems Inc Through Teledyne Instruments Inc. Top agencies Army (Department of the Army)	$228,674	0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 5 since FY2024.
56	Gasmet Technologies Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$228,465	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2024 list; returned.
57	CEM Holdings Corporation Through CEM Corporation Top agencies DOL (Department of Labor) DOE (Department of Energy) EPA (Environmental Protection Agency)	$222,964	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
58	Enviroflux LLC Top agencies DOI (Department of the Interior)	$218,145	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
59	Countertrade Products, Inc. Top agencies USAF (Department of the Air Force)	$203,272	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Expotech U.s.a., Inc. Top agencies DLA (Defense Logistics Agency)	$197,909	0.1%	Rank history: #56 in FY2021, #50 in FY2022, #46 in FY2023 and not on the FY2024 list; up 74 since FY2024.
61	Treadwell Corporation (Delaware) Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$197,580	0.1%	Rank history: #53 in FY2021, not on the FY2022 list, #58 in FY2023 and #38 in FY2024; down 23 since FY2024.
62	Veracyte, Inc. Top agencies VA (Department of Veterans Affairs)	$193,920	0.1%	Rank history: not on the FY2021–FY2024 lists; up 44 since FY2024.
63	Midland Scientific Inc. Top agencies DLA (Defense Logistics Agency)	$169,652	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and not on the FY2024 list; up 76 since FY2024.
64	Badger Meter Inc. Top agencies DOI (Department of the Interior)	$164,122	0.1%	Rank history: not on the FY2021–FY2024 lists; up 162 since FY2024.
65	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$161,786	0.1%	Rank history: #27 in FY2021, not on the FY2022–FY2023 lists and #91 in FY2024; up 26 since FY2024.
66	Sr-Services GMBH Top agencies Army (Department of the Army)	$160,869	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Rigaku Americas Holding, Inc. Top agencies USAF (Department of the Air Force)	$157,998	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Li-Cor, Inc. Top agencies USDA (Department of Agriculture)	$151,927	0.1%	Rank history: #83 in FY2021, not on the FY2022 list, #47 in FY2023 and #83 in FY2024; up 15 since FY2024.
69	Alpha Solutions Inc. Top agencies Army (Department of the Army)	$150,828	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Shimadzu America Inc. Through Shimadzu Scientific Instruments, Inc. Top agencies USDA (Department of Agriculture) Smithsonian (Smithsonian Institution)	$150,609	0.1%	Rank history: not on the FY2021–FY2024 lists; up 32 since FY2024.
71	Ciqima Federal Services LLC Top agencies USAF (Department of the Air Force)	$150,499	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	Gerin Corp Inc. Top agencies DLA (Defense Logistics Agency)	$147,369	0.1%	Rank history: #86 in FY2021, not on the FY2022 list, #77 in FY2023 and not on the FY2024 list; up 35 since FY2024.
73	Safeware Inc. Top agencies EPA (Environmental Protection Agency) Commerce (Department of Commerce)	$144,700	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	RTX Corporation Through Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy)	$143,441	0.1%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 65 since FY2024.
75	Mettler-Toledo International Inc. 2 awardees, including Mettler-Toledo Autochem, Inc. and Mettler-Toledo LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$142,044	0.1%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 49 since FY2024.
76	Eurofins Environment Testing South Central LLC 2 awardees, including Eurofins Testoil, Inc. and Gold Standard Diagnostics Horsham, LLC Top agencies DOT (Department of Transportation) Commerce (Department of Commerce)	$140,847	0.1%	Rank history: not on the FY2021–FY2024 lists; up 134 since FY2024.
77	Waters Corporation 2 awardees, including Waters Technologies Corporation Top agencies USDA (Department of Agriculture)	$134,678	0.1%	Rank history: not on the FY2021 list, #25 in FY2022, #34 in FY2023 and #19 in FY2024; down 58 since FY2024.
78	ALC Holdings, LLC Top agencies Navy (Department of the Navy)	$131,662	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	MG Scientific, Inc. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force)	$131,313	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	In-Situ, Inc. Top agencies DOI (Department of the Interior)	$128,009	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	Lazar Scientific Inc. Top agencies USAF (Department of the Air Force)	$122,111	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Noble Supply & Logistics, LLC Top agencies EPA (Environmental Protection Agency)	$119,948	0.1%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; down 70 since FY2024.
83	Chemdaq, Inc. Top agencies VA (Department of Veterans Affairs)	$117,212	0.1%	Rank history: #89 in FY2021, #84 in FY2022 and not on the FY2023–FY2024 lists; up 52 since FY2024.
84	Cytopath Biopsy Lab Inc. Top agencies VA (Department of Veterans Affairs)	$116,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 2 since FY2024.
85	Julabo USA Inc Top agencies Army (Department of the Army)	$114,660	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 42 since FY2024.
86	VWR International LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$114,316	0.1%	Rank history: not on the FY2021–FY2024 lists; up 61 since FY2024.
87	Particle Instruments LLC Top agencies EPA (Environmental Protection Agency)	$108,586	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Hologic, Inc. Through Hologic Sales and Service, LLC Top agencies VA (Department of Veterans Affairs)	$108,458	<0.1%	Rank history: #87 in FY2021, #41 in FY2022 and not on the FY2023–FY2024 lists; returned.
89	Laurus Systems Inc. Top agencies Army (Department of the Army)	$102,844	<0.1%	Rank history: #67 in FY2021 and not on the FY2022–FY2024 lists; up 73 since FY2024.
90	Tevet LLC Top agencies Navy (Department of the Navy)	$98,921	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Brinkmann Instruments Inc. 2 awardees, including USA Scientific, Inc. Top agencies EPA (Environmental Protection Agency) DOJ (Department of Justice)	$95,865	<0.1%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; down 15 since FY2024.
92	Bromine Systems Inc. Top agencies DLA (Defense Logistics Agency)	$93,431	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 59 since FY2024.
93	Ohio Lumex Co., Inc. Top agencies EPA (Environmental Protection Agency)	$92,930	<0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #63 in FY2023 and not on the FY2024 list; up 111 since FY2024.
94	Fedcorp Services, Inc. Top agencies Navy (Department of the Navy)	$92,314	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 131 since FY2024.
95	Dumbo Defense Inc. Top agencies Navy (Department of the Navy)	$91,080	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
96	Caprice Electronics, Inc. Top agencies USDA (Department of Agriculture)	$90,272	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$89,934	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 169 since FY2024.
98	Utech Products Inc. Top agencies Navy (Department of the Navy)	$80,629	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 126 since FY2024.
99	Helmer Scientific LLC Top agencies USDA (Department of Agriculture)	$79,042	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Habco Industries LLC Top agencies DLA (Defense Logistics Agency)	$78,525	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #84 in FY2023 and not on the FY2024 list; up 43 since FY2024.

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100 of 244 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 $229 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.
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 PSC 6630 contractors in FY2025?

1. D-2 Incorporated ($40.8M), 2. Danaher Corporation ($31.3M), 3. Abbott Laboratories Inc. ($24.4M), 4. Roche Holdings Inc. ($19.3M), 5. CHG Group Inc ($15.6M), 6. Siemens Corporation ($10.5M), 7. Government Scientific Source Inc. ($9.31M), 8. GTA Containers, LLC ($7.26M), 9. Scitech Services Inc. ($6.7M), 10. Federal Resources Supply Company, LLC ($4.53M).

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