Top 48 Contractors in PSC B517: Geological Studies, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Athena Technologies Inc. Top agencies Army (Department of the Army)	$529,589	20.7%	Rank history: #1 in FY2021, #31 in FY2022, #1 in FY2023 and #3 in FY2024; up 2 since FY2024.
2	Central Geotechnical Services LLC Top agencies USDA (Department of Agriculture)	$226,975	8.9%	Rank history: not on the FY2021–FY2024 lists; new.
3	RTI Laboratories Inc. Top agencies Army (Department of the Army)	$197,850	7.7%	Rank history: not on the FY2021–FY2024 lists; new.
4	Geosep Services, LLC Top agencies DOI (Department of the Interior)	$118,638	4.6%	Rank history: #8 in FY2021, #1 in FY2022, #4 in FY2023 and #17 in FY2024; up 13 since FY2024.
5	University of Texas At Austin Top agencies DOE (Department of Energy) DOI (Department of the Interior)	$112,350	4.4%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 7 since FY2024.
6	Tritium Laboratory Through University of Miami Top agencies DOI (Department of the Interior)	$92,225	3.6%	Rank history: #3 in FY2021, not on the FY2022 list, #8 in FY2023 and #4 in FY2024; down 2 since FY2024.
7	Charles Trexler Top agencies DOI (Department of the Interior)	$90,000	3.5%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; down 1 since FY2024.
8	RE/Spec Inc. Through Respec Company, LLC Top agencies DOI (Department of the Interior)	$82,362	3.2%	Rank history: not on the FY2021–FY2024 lists; new.
9	Nevada System of Higher Education Top agencies DOI (Department of the Interior)	$63,407	2.5%	Rank history: not on the FY2021–FY2024 lists; new.
10	Northern Arizona University Top agencies DOI (Department of the Interior)	$60,835	2.4%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; up 30 since FY2024.
11	Diversity Arrays Technology PTY Limited Top agencies DOI (Department of the Interior)	$60,000	2.4%	Rank history: not on the FY2021 list, #42 in FY2022 and not on the FY2023–FY2024 lists; returned.
12	Lily Hanna Rich Top agencies DOI (Department of the Interior)	$52,982	2.1%	Rank history: not on the FY2021–FY2024 lists; new.
13	Horner, Liam G Top agencies DOI (Department of the Interior)	$52,898	2.1%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and not on the FY2024 list; returned.
14	Heather Elliott Top agencies DOI (Department of the Interior)	$49,994	2.0%	Rank history: not on the FY2021–FY2024 lists; new.
15	Airie LLC Top agencies DOI (Department of the Interior)	$48,000	1.9%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #27 in FY2024; up 12 since FY2024.
16	Isabelle Shapiro Top agencies DOI (Department of the Interior)	$45,225	1.8%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 7 since FY2024.
17	University of California Irvine Top agencies DOI (Department of the Interior)	$44,850	1.8%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 22 since FY2024.
18	Thea Mary Schmit Top agencies DOI (Department of the Interior)	$40,885	1.6%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 15 since FY2024.
19	Michele Catherine Dodge-Laviano Top agencies DOI (Department of the Interior)	$39,266	1.5%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #37 in FY2024; up 18 since FY2024.
20	Kevin Arizmendi Top agencies DOI (Department of the Interior)	$35,007	1.4%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; down 9 since FY2024.
21	Terre-Vertis, LLC Top agencies DOI (Department of the Interior)	$33,499	1.3%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023 and not on the FY2024 list; returned.
22	Conetec, Inc. Top agencies DOI (Department of the Interior)	$27,800	1.1%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; up 6 since FY2024.
23	Alyssa Kate Hachmann Top agencies DOI (Department of the Interior)	$27,417	1.1%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; up 7 since FY2024.
24	Washington State University Top agencies DOI (Department of the Interior)	$26,824	1.1%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; down 6 since FY2024.
25	Metallogeny, Inc. Top agencies DOI (Department of the Interior)	$26,704	1.0%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; down 15 since FY2024.
26	Alaska Testlab, LLC Top agencies DOI (Department of the Interior)	$24,975	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
27	Boise State University Top agencies DOI (Department of the Interior)	$24,200	0.9%	Rank history: #64 in FY2021, #29 in FY2022, #44 in FY2023 and not on the FY2024 list; returned.
28	Brooks Applied Labs LLC Top agencies DOI (Department of the Interior)	$24,155	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
29	Wortman, Laura Jean Top agencies DOI (Department of the Interior)	$23,975	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
30	Spectrum Petrographics Inc. Top agencies DOI (Department of the Interior)	$18,299	0.7%	Rank history: #26 in FY2021, not on the FY2022 list, #58 in FY2023 and #21 in FY2024; down 9 since FY2024.
31	Commonwealth Scientific and Industrial Research Organisation Top agencies DOI (Department of the Interior)	$16,800	0.7%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and not on the FY2024 list; returned.
32	Jameson, Seamus Top agencies DOI (Department of the Interior)	$16,561	0.6%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; down 12 since FY2024.
33	Curtin University Top agencies DOI (Department of the Interior)	$16,245	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
34	Legend Technical Services of Arizona, Inc. Top agencies USAF (Department of the Air Force)	$15,450	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
35	University of Arizona Top agencies DOI (Department of the Interior)	$14,268	0.6%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; unchanged since FY2024.
36	Mobile Communications America, Inc. Top agencies Army (Department of the Army)	$13,500	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
37	University of California San Diego Top agencies DOI (Department of the Interior)	$13,400	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
38	Moab Geotechnical Group LLC Top agencies USAF (Department of the Air Force)	$13,320	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
39	Als USA Inc. Top agencies DOI (Department of the Interior)	$12,952	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
40	Hamilton College Top agencies DOI (Department of the Interior)	$12,400	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
41	Particle Size Labs, LLC Top agencies DOI (Department of the Interior)	$8,618	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
42	Elise Brahana Top agencies DOI (Department of the Interior)	$6,627	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
43	Biomarker Technologies, Inc. Top agencies DOI (Department of the Interior)	$6,450	0.3%	Rank history: #9 in FY2021, #3 in FY2022, #7 in FY2023 and #8 in FY2024; down 35 since FY2024.
44	Marilyn Smith Top agencies DOI (Department of the Interior)	$6,250	0.2%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; down 6 since FY2024.
45	Keely Meachem Top agencies DOI (Department of the Interior)	$6,250	0.2%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; down 16 since FY2024.
46	John Bailey Top agencies DOI (Department of the Interior)	$5,056	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #50 in FY2024; up 4 since FY2024.
47	PPD Development LP Through Life Technologies Corporation Top agencies DOI (Department of the Interior)	$4,490	0.2%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 2 since FY2024.
48	Christine E Pingel Top agencies DOI (Department of the Interior)	$939	<0.1%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023 and not on the FY2024 list; returned.

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 $2.55 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