Top 100 Contractors in PSC F103: Water Quality Support Services, FY2023

Name: Top 100 Contractors in PSC F103: Water Quality Support Services, FY2023
Creator: GovTribe

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

The top 10 won 59% of FY2023 PSC F103 contract dollars

Contract obligations: $32,841,980 Net of deobligations, by contracts coded PSC F103
Contractors: 169 Parent companies with an obligation
Largest contractor: Seaon Environmental LLC $8.23 million, 23.3% 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	Seaon Environmental LLC Top agencies Navy (Department of the Navy)	$8,230,215	23.3%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; up 1 since FY2022.
2	Versar-Envirocon JV Top agencies EPA (Environmental Protection Agency)	$2,414,382	6.8%	Rank history: not on the FY2021 list, #11 in FY2022, #7 in FY2024 and #5 in FY2025; up 9 since FY2022.
3	ABT Global LLC Top agencies EPA (Environmental Protection Agency)	$2,095,895	5.9%	Rank history: #2 in FY2021, #6 in FY2022, #3 in FY2024 and #11 in FY2025; up 3 since FY2022.
4	Potomac Environmental Inc. Top agencies Navy (Department of the Navy)	$1,815,000	5.1%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and #6 in FY2025; new.
5	Iei-Tidewater Environmental JV Top agencies Navy (Department of the Navy)	$1,226,718	3.5%	Rank history: #5 in FY2021, #3 in FY2022, #6 in FY2024 and not on the FY2025 list; down 2 since FY2022.
6	Bluestone Interspec JV, LLC Top agencies Navy (Department of the Navy)	$1,190,665	3.4%	Rank history: not on the FY2021 list, #7 in FY2022, #26 in FY2024 and not on the FY2025 list; up 1 since FY2022.
7	Aviate Enterprises, Inc. Top agencies VA (Department of Veterans Affairs)	$1,026,213	2.9%	Rank history: not on the FY2021 list, #61 in FY2022, #37 in FY2024 and #40 in FY2025; up 54 since FY2022.
8	Phigenics LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$987,875	2.8%	Rank history: #18 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
9	Hoolaulima Government Solutions, LLC Top agencies Navy (Department of the Navy)	$825,287	2.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
10	Meadows Cmpg, Inc. Top agencies Navy (Department of the Navy)	$823,583	2.3%	Rank history: #3 in FY2021, #4 in FY2022, #5 in FY2024 and #3 in FY2025; down 6 since FY2022.
11	Venergy Group LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$812,220	2.3%	Rank history: #12 in FY2021, #5 in FY2022, #10 in FY2024 and #10 in FY2025; down 6 since FY2022.
12	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$643,087	1.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	Natives of Kodiak, Incorporated Through Koman Government Solutions LLC Top agencies Navy (Department of the Navy)	$596,421	1.7%	Rank history: #8 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
14	EA Engineering, Science, and Technology, Inc., PBC Top agencies EPA (Environmental Protection Agency) USAF (Department of the Air Force)	$482,905	1.4%	Rank history: #43 in FY2021, #8 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
15	Accord Federal Services, LLC Top agencies VA (Department of Veterans Affairs)	$456,037	1.3%	Rank history: #14 in FY2021, #9 in FY2022, not on the FY2024 list and #14 in FY2025; down 6 since FY2022.
16	Alta Science & Engineering Inc Top agencies USDA (Department of Agriculture)	$396,058	1.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
17	Bluestone Environmental Group, Inc. Top agencies Army (Department of the Army)	$395,112	1.1%	Rank history: not on the FY2021 list, #15 in FY2022, #16 in FY2024 and #19 in FY2025; down 2 since FY2022.
18	Hepaco LLC Top agencies USAF (Department of the Air Force)	$352,645	1.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Rural and Tribal Environmental Solutions, Inc. Top agencies EPA (Environmental Protection Agency)	$344,564	1.0%	Rank history: #45 in FY2021, #28 in FY2022, #21 in FY2024 and #28 in FY2025; up 9 since FY2022.
20	Chugai Technos Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army)	$330,903	0.9%	Rank history: #25 in FY2021, #14 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
21	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$316,239	0.9%	Rank history: #21 in FY2021, #31 in FY2022, #12 in FY2024 and #15 in FY2025; up 10 since FY2022.
22	Babcock Laboratories, Inc. Top agencies Navy (Department of the Navy)	$293,475	0.8%	Rank history: #19 in FY2021, #19 in FY2022, #14 in FY2024 and #22 in FY2025; down 3 since FY2022.
23	Montrose Environmental Group Inc. Through Pars Environmental Inc. Top agencies EPA (Environmental Protection Agency)	$261,005	0.7%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
24	OYO Corporation, Pacific Top agencies Navy (Department of the Navy)	$252,852	0.7%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2024 and not on the FY2025 list; new.
25	Clarity Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$246,591	0.7%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and #65 in FY2025; new.
26	Hyperion Biotechnology, Inc. Top agencies VA (Department of Veterans Affairs)	$231,693	0.7%	Rank history: not on the FY2021 list, #77 in FY2022, #35 in FY2024 and #23 in FY2025; up 51 since FY2022.
27	Pi3E JV LLP Top agencies Navy (Department of the Navy)	$221,442	0.6%	Rank history: not on the FY2021 list, #25 in FY2022, #19 in FY2024 and #29 in FY2025; down 2 since FY2022.
28	Dynamite Water LLC Top agencies DOI (Department of the Interior)	$218,250	0.6%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and not on the FY2025 list; new.
29	Environmental Science Corporation Top agencies Navy (Department of the Navy)	$210,000	0.6%	Rank history: not on the FY2021 list, #12 in FY2022, not on the FY2024 list and #58 in FY2025; down 17 since FY2022.
30	Alhoty Analytical Services W.l.l Top agencies Navy (Department of the Navy)	$204,747	0.6%	Rank history: #22 in FY2021, #21 in FY2022, #15 in FY2024 and #21 in FY2025; down 9 since FY2022.
31	Mecx, Inc. Top agencies VA (Department of Veterans Affairs)	$200,434	0.6%	Rank history: #59 in FY2021, #39 in FY2022, #30 in FY2024 and #16 in FY2025; up 8 since FY2022.
32	SGS Canada Inc Through SGS Korea Co.,Ltd Top agencies Army (Department of the Army)	$179,702	0.5%	Rank history: #27 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
33	Westover Roofing, LLC Top agencies Army (Department of the Army)	$170,149	0.5%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and #26 in FY2025; new.
34	Matrix New World Engineering Inc. Top agencies USAF (Department of the Air Force)	$158,720	0.5%	Rank history: #31 in FY2021, #27 in FY2022, #38 in FY2024 and not on the FY2025 list; down 7 since FY2022.
35	CDM Federal Services Europe Joint Venture Top agencies Army (Department of the Army)	$130,525	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and #38 in FY2025; new.
36	Upper Mississippi River Basin Association Top agencies Army (Department of the Army)	$128,800	0.4%	Rank history: #53 in FY2021, not on the FY2022 list, #33 in FY2024 and #36 in FY2025; returned.
37	RJY Group LLC Top agencies VA (Department of Veterans Affairs)	$114,451	0.3%	Rank history: #38 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
38	Environmental Chemists Inc. Top agencies Navy (Department of the Navy)	$107,145	0.3%	Rank history: #35 in FY2021, #33 in FY2022, #44 in FY2024 and not on the FY2025 list; down 5 since FY2022.
39	Eurofins Scientific SE Through Eurofins Lancaster Laboratories LLC Top agencies VA (Department of Veterans Affairs)	$105,432	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Alliance Solutions Group, Inc. Top agencies USAF (Department of the Air Force)	$98,825	0.3%	Rank history: #30 in FY2021, #37 in FY2022, #46 in FY2024 and #50 in FY2025; down 3 since FY2022.
41	Pi2E JV LLP Top agencies Navy (Department of the Navy)	$96,588	0.3%	Rank history: #34 in FY2021, #35 in FY2022, #18 in FY2024 and #12 in FY2025; down 6 since FY2022.
42	Patterson Professional Services LLC Top agencies USAF (Department of the Air Force)	$95,500	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	DHL Analytical Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$95,361	0.3%	Rank history: #55 in FY2021, #32 in FY2022, not on the FY2024 list and #34 in FY2025; down 11 since FY2022.
44	SJ Engineering Top agencies Army (Department of the Army)	$95,306	0.3%	Rank history: #40 in FY2021, #34 in FY2022, #52 in FY2024 and not on the FY2025 list; down 10 since FY2022.
45	Marvel Water LLC Top agencies USAF (Department of the Air Force)	$92,958	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #94 in FY2025; new.
46	J.r. Henderson Labs, Inc. Top agencies Navy (Department of the Navy)	$92,388	0.3%	Rank history: #44 in FY2021, #40 in FY2022, #48 in FY2024 and #48 in FY2025; down 6 since FY2022.
47	Midwest Laboratories Inc. Top agencies Army (Department of the Army)	$90,610	0.3%	Rank history: #23 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
48	Harpure Enterprises Inc. Through Aqua-Serv Engineers, Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$89,722	0.3%	Rank history: #73 in FY2021, #75 in FY2022, #93 in FY2024 and not on the FY2025 list; up 27 since FY2022.
49	D & D Laboratory LLC Top agencies VA (Department of Veterans Affairs)	$88,344	0.3%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #98 in FY2025; new.
50	Paramount Construction Group, LLC Top agencies VA (Department of Veterans Affairs)	$88,217	0.3%	Rank history: #50 in FY2021, #45 in FY2022, #24 in FY2024 and not on the FY2025 list; down 5 since FY2022.
51	Kyle Mountain Fire LLC Top agencies DOI (Department of the Interior)	$82,417	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and #72 in FY2025; new.
52	Barclay Water Treatment Company Inc Through Barclay Water Management, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$81,084	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #56 in FY2024 and not on the FY2025 list; up 17 since FY2022.
53	Ronielle Howard & Associates LLC Top agencies Army (Department of the Army)	$78,277	0.2%	Rank history: #52 in FY2021, #47 in FY2022, #58 in FY2024 and #55 in FY2025; down 6 since FY2022.
54	Jackson Ryan Construction Services, Inc. Top agencies VA (Department of Veterans Affairs)	$76,800	0.2%	Rank history: not on the FY2021 list, #49 in FY2022, #91 in FY2024 and #60 in FY2025; down 5 since FY2022.
55	Utility Services, Inc. Top agencies DOI (Department of the Interior)	$73,808	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2024 and #71 in FY2025; new.
56	Young's Water Services, LLC Top agencies USDA (Department of Agriculture)	$72,350	0.2%	Rank history: #97 in FY2021, #97 in FY2022 and not on the FY2024–FY2025 lists; up 41 since FY2022.
57	University System of New Hampshire Top agencies EPA (Environmental Protection Agency)	$71,996	0.2%	Rank history: #41 in FY2021, #36 in FY2022, #39 in FY2024 and not on the FY2025 list; down 21 since FY2022.
58	Sanford Federal, Inc. Top agencies DOI (Department of the Interior)	$70,685	0.2%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and not on the FY2025 list; new.
59	BIO-Chem Lab Inc Top agencies Army (Department of the Army)	$70,248	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and not on the FY2025 list; new.
60	Erin Enerji Taahhut Insaat Sanayi VE Ticaret Limited Sirketi Top agencies USAF (Department of the Air Force)	$70,005	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #31 in FY2025; new.
61	Ethosenergy Light Turbines LLC Through WSP E&Is GMBH Top agencies Army (Department of the Army)	$69,151	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Carnow, Conibear & Assoc,. Ltd. Top agencies GSA (General Services Administration)	$68,876	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Evoqua Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$68,760	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Geoanalytical Laboratories, Inc. Top agencies DLA (Defense Logistics Agency)	$65,950	0.2%	Rank history: #58 in FY2021, #50 in FY2022, #68 in FY2024 and #53 in FY2025; down 14 since FY2022.
65	Brasco Technologies LLC Top agencies VA (Department of Veterans Affairs)	$64,884	0.2%	Rank history: #54 in FY2021, #51 in FY2022, #70 in FY2024 and not on the FY2025 list; down 14 since FY2022.
66	Hall Environmental Analysis Laboratory Inc Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$62,545	0.2%	Rank history: not on the FY2021 list, #82 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
67	Pace Analytical Services LLC 2 awardees Top agencies Army (Department of the Army) DOI (Department of the Interior)	$61,879	0.2%	Rank history: #74 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
68	Legend Technical Services of Arizona, Inc. Top agencies DOI (Department of the Interior)	$60,000	0.2%	Rank history: #57 in FY2021, #91 in FY2022 and not on the FY2024–FY2025 lists; up 23 since FY2022.
69	Fourtune 4, Inc. Top agencies USAF (Department of the Air Force)	$57,945	0.2%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2024 and not on the FY2025 list; new.
70	Verda Medical Systems, LLC Top agencies VA (Department of Veterans Affairs)	$57,654	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and not on the FY2025 list; new.
71	Arkansas Soft Water LLC Top agencies USDA (Department of Agriculture)	$52,135	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	The Cadmus Group LLC Top agencies HHS (Department of Health and Human Services)	$49,172	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #79 in FY2024 and #76 in FY2025; down 13 since FY2022.
73	Mchenry, Luke Top agencies DOI (Department of the Interior)	$48,000	0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #63 in FY2024 and #78 in FY2025; down 13 since FY2022.
74	Gaon Environment Science Inc. Top agencies Army (Department of the Army)	$47,527	0.1%	Rank history: #61 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
75	Acuity Specialty Products Inc Through Zep Italia S.R.L. Top agencies Navy (Department of the Navy)	$46,722	0.1%	Rank history: #42 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
76	ECO Fuel Services LLC Top agencies USAF (Department of the Air Force)	$46,273	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	Adolf Lupp GMBH + Co. KG Through Lupp Facility Management GMBH Top agencies Army (Department of the Army)	$45,168	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 40 since FY2022.
78	Water Quality Specialists Top agencies DOI (Department of the Interior)	$44,328	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and #80 in FY2025; new.
79	Small Beginnings LLC Top agencies USDA (Department of Agriculture)	$44,001	0.1%	Rank history: #79 in FY2021, #66 in FY2022, #87 in FY2024 and not on the FY2025 list; down 13 since FY2022.
80	Universal Solutions, Inc. Top agencies USAF (Department of the Air Force)	$39,405	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2024 and not on the FY2025 list; new.
81	New England Testing Laboratory Inc. Top agencies Navy (Department of the Navy)	$39,111	0.1%	Rank history: #51 in FY2021, #48 in FY2022 and not on the FY2024–FY2025 lists; down 33 since FY2022.
82	Environmental Control Center Co. Ltd. Top agencies Army (Department of the Army)	$39,015	0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and not on the FY2025 list; new.
83	NCH Corporation Through Chem-Aqua Inc. Top agencies DOJ (Department of Justice) USDA (Department of Agriculture)	$38,819	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and not on the FY2025 list; new.
84	Cuna Supply LLC Top agencies VA (Department of Veterans Affairs)	$33,949	0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #53 in FY2024 and not on the FY2025 list; up 9 since FY2022.
85	ANA-Lab Corp Top agencies Army (Department of the Army)	$32,920	0.1%	Rank history: not on the FY2021 list, #72 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
86	Sijora Enterprises LLC Top agencies Army (Department of the Army)	$32,400	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and #89 in FY2025; new.
87	Hejab A Al Soyan Top agencies Army (Department of the Army)	$30,720	0.1%	Rank history: #81 in FY2021, #79 in FY2022, not on the FY2024 list and #93 in FY2025; down 8 since FY2022.
88	Enviro Chem Analytical Inc. Top agencies DOI (Department of the Interior)	$30,532	0.1%	Rank history: #82 in FY2021, #80 in FY2022, #100 in FY2024 and #81 in FY2025; down 8 since FY2022.
89	Rosenthal, Brock Top agencies Army (Department of the Army)	$30,429	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Water Management Laboratories Inc. Top agencies DOI (Department of the Interior)	$30,000	0.1%	Rank history: #87 in FY2021, #90 in FY2022, not on the FY2024 list and #86 in FY2025; unchanged since FY2022.
91	Garratt-Callahan Company Top agencies VA (Department of Veterans Affairs)	$29,795	0.1%	Rank history: #84 in FY2021, #70 in FY2022, #82 in FY2024 and #77 in FY2025; down 21 since FY2022.
92	Patriotvetit LLC Top agencies VA (Department of Veterans Affairs)	$29,280	0.1%	Rank history: #83 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
93	Nobis Engineering, Inc. Top agencies EPA (Environmental Protection Agency)	$28,099	0.1%	Rank history: #89 in FY2021, #89 in FY2022, #2 in FY2024 and not on the FY2025 list; down 4 since FY2022.
94	RMC Consultants Inc. Top agencies EPA (Environmental Protection Agency)	$28,036	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Charlie Pepper AZ, Inc. Top agencies VA (Department of Veterans Affairs)	$27,836	0.1%	Rank history: not on the FY2021 list, #62 in FY2022, #78 in FY2024 and #74 in FY2025; down 33 since FY2022.
96	Environmental Quality, Inc. Top agencies VA (Department of Veterans Affairs)	$27,547	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #91 in FY2025; new.
97	Mabbett & Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$25,430	0.1%	Rank history: #76 in FY2021, #74 in FY2022, #90 in FY2024 and not on the FY2025 list; down 23 since FY2022.
98	Percy Richardson Top agencies Army (Department of the Army)	$25,152	0.1%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
99	Water TECH Laboratories, Inc. Top agencies DOI (Department of the Interior)	$24,907	0.1%	Rank history: #92 in FY2021, #95 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
100	Cel Analytical, Inc. Top agencies DOI (Department of the Interior)	$24,077	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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100 of 169 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 $35.3 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 PSC F103 contractors in FY2023?

1. Seaon Environmental LLC ($8.23M), 2. Versar-Envirocon JV ($2.41M), 3. ABT Global LLC ($2.1M), 4. Potomac Environmental Inc. ($1.82M), 5. Iei-Tidewater Environmental JV ($1.23M), 6. Bluestone Interspec JV, LLC ($1.19M), 7. Aviate Enterprises, Inc. ($1.03M), 8. Phigenics LLC ($988K), 9. Hoolaulima Government Solutions, LLC ($825K), 10. Meadows Cmpg, Inc. ($824K).

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