Top 42 Contractors in PSC H166: Quality Control Services: Instruments and Laboratory Equipment, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Zedek Corporation Top agencies EPA (Environmental Protection Agency)	$331,660	15.4%	Rank history: #2 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
2	Global Systems Technologies, LLC Top agencies DHS (Department of Homeland Security)	$308,308	14.4%	Rank history: #3 in FY2022, #2 in FY2023, #11 in FY2024 and not on the FY2025 list; down 1 since FY2020.
3	Winergy LLC Top agencies VA (Department of Veterans Affairs)	$153,288	7.1%	Rank history: #10 in FY2022, #17 in FY2023, #18 in FY2024 and #17 in FY2025; up 6 since FY2020.
4	Agilent Technologies Inc. Top agencies DHS (Department of Homeland Security)	$138,779	6.5%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
5	Xylem Inc. Through CMS Research Corp Top agencies DHS (Department of Homeland Security)	$102,915	4.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
6	Ametek Inc. 2 awardees, including Spectro Analytical Instruments, Inc. and Cameca Instruments, Inc. Top agencies DOI (Department of the Interior)	$87,470	4.1%	Rank history: #8 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
7	Promega Corporation Top agencies VA (Department of Veterans Affairs)	$83,386	3.9%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
8	Praxair Distribution Inc. Through Linde Advanced Material Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$67,825	3.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	The Remi Group LLC Top agencies DOI (Department of the Interior) Smithsonian (Smithsonian Institution)	$55,251	2.6%	Rank history: #17 in FY2022, #24 in FY2023, #26 in FY2024 and #44 in FY2025; up 4 since FY2020.
10	Griglock Thomas M PHD Top agencies VA (Department of Veterans Affairs)	$54,150	2.5%	Rank history: #12 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
11	Thermo Electron Corporation 3 awardees, including Thermo Electron North America LLC Top agencies DOI (Department of the Interior)	$50,327	2.3%	Rank history: #5 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
12	Encon International, Inc. Top agencies VA (Department of Veterans Affairs)	$48,950	2.3%	Rank history: #20 in FY2022, #19 in FY2023, #13 in FY2024 and not on the FY2025 list; up 2 since FY2020.
13	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$48,180	2.2%	Rank history: #15 in FY2022, #14 in FY2023, #17 in FY2024 and #8 in FY2025; up 2 since FY2020.
14	Rees Scientific Corporation Top agencies Navy (Department of the Navy)	$47,168	2.2%	Rank history: #29 in FY2022, #40 in FY2023, not on the FY2024 list and #10 in FY2025; up 8 since FY2020.
15	Technical Safety Services, LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$32,871	1.5%	Rank history: #9 in FY2022, #16 in FY2023, #40 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
16	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs)	$29,434	1.4%	Rank history: #19 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
17	Eurofins Scientific SE Through Eurofins EPK Built Environment Testing, LLC Top agencies VA (Department of Veterans Affairs)	$26,034	1.2%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
18	Ansi National Accreditation Board LLC Top agencies Army (Department of the Army)	$25,338	1.2%	Rank history: #37 in FY2022, #10 in FY2023, #35 in FY2024 and #16 in FY2025; up 9 since FY2020.
19	Simply Physics, Inc. Top agencies HHS (Department of Health and Human Services)	$24,000	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	Batavia Inc Through Allometrics, Inc. Top agencies VA (Department of Veterans Affairs)	$21,952	1.0%	Rank history: #21 in FY2022, #23 in FY2023, #24 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
21	Waters Corporation Through Waters Technologies Corporation Top agencies Treasury (Department of the Treasury)	$21,425	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Oxford Instruments PLC Through Oxford Instruments America, Inc. Top agencies DOI (Department of the Interior)	$20,483	1.0%	Rank history: #25 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	BNP Paribas Through Eurofins EPK Built Environment Testing, LLC Top agencies VA (Department of Veterans Affairs)	$20,160	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Danaher Corporation Through Beckman Coulter, Inc. Top agencies HHS (Department of Health and Human Services)	$19,895	0.9%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
25	A-Bear Consult LLC Top agencies VA (Department of Veterans Affairs)	$19,415	0.9%	Rank history: #16 in FY2022, not on the FY2023 list, #9 in FY2024 and #7 in FY2025; new, not ranked in FY2020.
26	Larson Automation, Inc. Top agencies Army (Department of the Army)	$17,622	0.8%	Rank history: #27 in FY2022, #18 in FY2023, #27 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
27	Inspec, Inc. Top agencies Army (Department of the Army)	$17,000	0.8%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
28	Tech62 Inc. Top agencies VA (Department of Veterans Affairs)	$14,600	0.7%	Rank history: #28 in FY2022, not on the FY2023 list, #4 in FY2024 and #3 in FY2025; new, not ranked in FY2020.
29	K & S Associates, Inc. Top agencies EPA (Environmental Protection Agency)	$14,279	0.7%	Rank history: #4 in FY2022, #4 in FY2023, #12 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
30	Accutec Services, Inc. Top agencies HHS (Department of Health and Human Services)	$13,560	0.6%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
31	MGA Research Corporation Top agencies NASA (National Aeronautics and Space Administration)	$13,500	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	Bruker Corporation Through Bruker Scientific LLC Top agencies DOI (Department of the Interior)	$13,164	0.6%	Rank history: #30 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
33	Perkinelmer Inc. Through Revvity Health Sciences, Inc. Top agencies DOI (Department of the Interior)	$12,912	0.6%	Rank history: #31 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
34	Rudolph Research Analytical Corporation Top agencies Treasury (Department of the Treasury)	$12,137	0.6%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
35	Scientific Calibration, Inc. Top agencies Navy (Department of the Navy)	$6,036	0.3%	Rank history: #36 in FY2022, #46 in FY2023, #47 in FY2024 and #42 in FY2025; new, not ranked in FY2020.
36	Alfa Wassermann, Inc. Top agencies HHS (Department of Health and Human Services)	$5,770	0.3%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
37	Tosoh Corporation Through Tosoh Bioscience, Inc. Top agencies VA (Department of Veterans Affairs)	$4,800	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Medialab Solutions LLC Top agencies VA (Department of Veterans Affairs)	$4,715	0.2%	Rank history: #40 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
39	Garber Scale Co Top agencies Navy (Department of the Navy)	$4,438	0.2%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
40	American Association for Laboratory Accreditation, Inc. Top agencies USDA (Department of Agriculture)	$3,600	0.2%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; down 15 since FY2020.
41	Darwin Chambers Co LLC Top agencies Navy (Department of the Navy)	$1,790	0.1%	Rank history: #43 in FY2022, #53 in FY2023, #55 in FY2024 and not on the FY2025 list; up 9 since FY2020.
42	Eoc1, LLC Top agencies VA (Department of Veterans Affairs)	$550	<0.1%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; down 18 since FY2020.

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 $2.15 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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