Top 43 Contractors in PSC B525: Natural Resource Studies, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Siskiyou Biosurvey LLC Top agencies DOI (Department of the Interior)	$420,140	11.0%	Rank history: #3 in FY2021, not on the FY2022 list, #13 in FY2024 and #3 in FY2025; returned.
2	Advanced Resource Solutions, Inc. Top agencies DOI (Department of the Interior)	$356,975	9.3%	Rank history: #6 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
3	Battelle Memorial Institute Top agencies HHS (Department of Health and Human Services)	$299,651	7.8%	Rank history: not on the FY2021 list, #4 in FY2022, #5 in FY2024 and #5 in FY2025; up 1 since FY2022.
4	Bric LLC Top agencies DOI (Department of the Interior)	$247,905	6.5%	Rank history: #2 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
5	Mergen Ecological Delineations, Inc. Top agencies USDA (Department of Agriculture)	$239,924	6.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
6	Logan Simpson Design Inc. 2 awardees Top agencies DOI (Department of the Interior)	$169,008	4.4%	Rank history: #4 in FY2021, #6 in FY2022, #14 in FY2024 and not on the FY2025 list; unchanged since FY2022.
7	Eastern Research Group Inc. Top agencies USDA (Department of Agriculture)	$164,532	4.3%	Rank history: #8 in FY2021, #5 in FY2022, #1 in FY2024 and #1 in FY2025; down 2 since FY2022.
8	BSA Environmental Services Inc. Top agencies DOI (Department of the Interior)	$154,160	4.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
9	University of Oxford Top agencies HHS (Department of Health and Human Services)	$148,666	3.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
10	Rye Tree Service, Inc. Top agencies DOI (Department of the Interior)	$144,992	3.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
11	Adanta, Inc. Top agencies DOI (Department of the Interior)	$119,974	3.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Kajaer Geoconsulting LLC Top agencies USDA (Department of Agriculture)	$117,112	3.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	Upper Colorado Environmental Plant Center Top agencies DOI (Department of the Interior)	$110,968	2.9%	Rank history: #10 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
14	Board of Regents of the University System of Georgia Through University of Georgia Top agencies USDA (Department of Agriculture)	$69,986	1.8%	Rank history: #40 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
15	Elizabeth Leipold Top agencies DOI (Department of the Interior)	$68,714	1.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
16	Robert T Haynam III Top agencies DOI (Department of the Interior)	$68,714	1.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
17	Pyramid Botanical Consultants, Inc. Top agencies DOI (Department of the Interior)	$58,255	1.5%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2024 and not on the FY2025 list; new.
18	Maggie J Raboin Top agencies DOI (Department of the Interior)	$54,994	1.4%	Rank history: not on the FY2021 list, #27 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
19	Marshall University Research Corporation Top agencies Navy (Department of the Navy)	$50,000	1.3%	Rank history: not on the FY2021 list, #20 in FY2022, #22 in FY2024 and not on the FY2025 list; up 1 since FY2022.
20	Abr, Inc. Top agencies DOI (Department of the Interior)	$46,976	1.2%	Rank history: #17 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
21	New England Testing Laboratory Inc. Top agencies Navy (Department of the Navy)	$46,727	1.2%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #13 in FY2025; new.
22	Environmental Systems Research Institute, Inc. Top agencies DOI (Department of the Interior)	$38,985	1.0%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2024 and not on the FY2025 list; new.
23	Biodiscovery LLC Top agencies USDA (Department of Agriculture)	$37,620	1.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	Western Wildlife Research Collective LLC Top agencies DOI (Department of the Interior)	$34,357	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	Geosystems Analysis, Inc. Top agencies DOI (Department of the Interior)	$33,810	0.9%	Rank history: #7 in FY2021, #3 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
26	Julia Cogan Top agencies DOI (Department of the Interior)	$31,757	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Harris Environmental Group Inc. Top agencies DOI (Department of the Interior)	$31,409	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Anne Marie Wood Top agencies DOI (Department of the Interior)	$29,188	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
29	Hailey M Willner Top agencies DOI (Department of the Interior)	$24,047	0.6%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and #28 in FY2025; new.
30	ABT Global LLC Top agencies DOI (Department of the Interior)	$22,556	0.6%	Rank history: #12 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
31	Chloe Mcquin Top agencies DOI (Department of the Interior)	$16,742	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
32	Frans Larson Top agencies DOI (Department of the Interior)	$15,696	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Brianne M Korducki Top agencies DOI (Department of the Interior)	$15,347	0.4%	Rank history: not on the FY2021 list, #34 in FY2022, #41 in FY2024 and not on the FY2025 list; up 1 since FY2022.
34	Katlyn May Top agencies USDA (Department of Agriculture)	$15,000	0.4%	Rank history: #22 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
35	Bratslavsky Consulting Engineers, Inc. Top agencies DOI (Department of the Interior)	$14,166	0.4%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #10 in FY2025; new.
36	Cbec Inc. Through Cbec ECO Engineering, LLP Top agencies DOI (Department of the Interior)	$11,887	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Bullseye Weed Control LLC Top agencies DOI (Department of the Interior)	$11,001	0.3%	Rank history: #32 in FY2021, not on the FY2022 list, #32 in FY2024 and not on the FY2025 list; returned.
38	Samantha J Lyons Top agencies DOI (Department of the Interior)	$10,464	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Calvin Carlisle Brown Top agencies DOI (Department of the Interior)	$10,464	0.3%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
40	Environmental Management & Planning Solutions LLC Top agencies DOI (Department of the Interior)	$9,857	0.3%	Rank history: not on the FY2021 list, #8 in FY2022 and not on the FY2024–FY2025 lists; down 32 since FY2022.
41	Allison Velouria Bast Top agencies DOI (Department of the Interior)	$6,976	0.2%	Rank history: not on the FY2021 list, #37 in FY2022, #29 in FY2024 and not on the FY2025 list; down 4 since FY2022.
42	Andrea Rabe Top agencies DOI (Department of the Interior)	$4,125	0.1%	Rank history: not on the FY2021 list, #18 in FY2022, #12 in FY2024 and #4 in FY2025; down 24 since FY2022.
43	Labuzzetta, Charles Jacob Top agencies DOI (Department of the Interior)	$3,644	0.1%	Rank history: not on the FY2021 list, #28 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.

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 $3.82 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.

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