Top 80 Contractors in PSC B517: Geological Studies, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Athena Technologies Inc. Top agencies Army (Department of the Army)	$374,350	10.0%	Rank history: #31 in FY2022, #1 in FY2023, #3 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	Richard Catlin & Associates Inc. Top agencies Army (Department of the Army)	$263,000	7.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
3	Tritium Laboratory Top agencies DOI (Department of the Interior)	$201,000	5.4%	Rank history: not on the FY2022 list, #8 in FY2023, #4 in FY2024 and #6 in FY2025; new, not ranked in FY2020.
4	Rod Transport Inc. Top agencies DLA (Defense Logistics Agency)	$186,354	5.0%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
5	Jane Rudebusch Top agencies DOI (Department of the Interior)	$135,509	3.6%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
6	Tehranirad Babak Top agencies DOI (Department of the Interior)	$134,900	3.6%	Rank history: #4 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
7	Crosby, Sean Top agencies DOI (Department of the Interior)	$130,000	3.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	Geosep Services, LLC Top agencies DOI (Department of the Interior)	$119,506	3.2%	Rank history: #1 in FY2022, #4 in FY2023, #17 in FY2024 and #4 in FY2025; down 6 since FY2020.
9	Biomarker Technologies, Inc. Top agencies DOI (Department of the Interior)	$100,521	2.7%	Rank history: #3 in FY2022, #7 in FY2023, #8 in FY2024 and #43 in FY2025; down 5 since FY2020.
10	RPS Group Inc. Top agencies DOI (Department of the Interior)	$98,273	2.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
11	Maria Springs Top agencies DOI (Department of the Interior)	$81,561	2.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Kory Kirchner Top agencies DOI (Department of the Interior)	$77,085	2.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Jesse Waco Top agencies DOI (Department of the Interior)	$71,956	1.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Paleo Research Institute, Inc. Top agencies DOI (Department of the Interior)	$63,000	1.7%	Rank history: #7 in FY2022, #71 in FY2023, #42 in FY2024 and not on the FY2025 list; up 24 since FY2020.
15	Nasr Brandon Top agencies DOI (Department of the Interior)	$62,423	1.7%	Rank history: #14 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
16	Emily White Top agencies DOI (Department of the Interior)	$57,561	1.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
17	Colorado State University System Through Colorado State University Top agencies DOI (Department of the Interior)	$56,925	1.5%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
18	Purdue University Top agencies DOI (Department of the Interior)	$50,357	1.3%	Rank history: #18 in FY2022, #11 in FY2023, #13 in FY2024 and not on the FY2025 list; down 6 since FY2020.
19	National Academy of Sciences Top agencies HHS (Department of Health and Human Services)	$50,000	1.3%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
20	Gabriela Boaventura Top agencies DOI (Department of the Interior)	$49,566	1.3%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
21	Advanced Geotechnical Solutions, Inc. Top agencies DOI (Department of the Interior)	$49,545	1.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	AU, Manda Top agencies DOI (Department of the Interior)	$48,576	1.3%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
23	State of California Controllers Office 2 awardees, including Davis University of California At and University of California, Santa Barbara Top agencies DOI (Department of the Interior)	$46,480	1.2%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
24	Philip Greene Top agencies DOI (Department of the Interior)	$45,050	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Carlos Barron Top agencies DOI (Department of the Interior)	$45,028	1.2%	Rank history: #73 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
26	Spectrum Petrographics Inc. Top agencies DOI (Department of the Interior)	$42,484	1.1%	Rank history: not on the FY2022 list, #58 in FY2023, #21 in FY2024 and #30 in FY2025; down 15 since FY2020.
27	Hope Ianiri Top agencies DOI (Department of the Interior)	$42,457	1.1%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
28	State of Mississippi Through Department of Environmental Quality Mississippi Top agencies DOI (Department of the Interior)	$40,000	1.1%	Rank history: not on the FY2022 list, #10 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
29	Environmental Systems Research Institute, Inc. Top agencies USAF (Department of the Air Force)	$39,367	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Chelsi Howard Top agencies DOI (Department of the Interior)	$35,147	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	S and S Farms Top agencies HHS (Department of Health and Human Services)	$34,720	0.9%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
32	Timothy Henderson Top agencies DOI (Department of the Interior)	$33,712	0.9%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
33	University of South Carolina Top agencies DOI (Department of the Interior)	$31,340	0.8%	Rank history: #67 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
34	Zirchron LLC Top agencies DOI (Department of the Interior)	$30,000	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Scianna Americo Top agencies DOI (Department of the Interior)	$29,983	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Logan Grady Top agencies DOI (Department of the Interior)	$28,112	0.8%	Rank history: #52 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
37	Amdrill, Inc. Top agencies Army (Department of the Army)	$27,420	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Gabriella Petrocelly Top agencies DOI (Department of the Interior)	$27,127	0.7%	Rank history: #35 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
39	Errol L. Montgomery & Associates, Inc. Top agencies DOI (Department of the Interior)	$25,545	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Campbell Brothers Limited Through Als USA Inc. Top agencies DOI (Department of the Interior)	$25,093	0.7%	Rank history: #33 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; down 32 since FY2020.
41	Weck Analytical Environmental Services, Inc. Top agencies DOI (Department of the Interior)	$25,051	0.7%	Rank history: #50 in FY2022, not on the FY2023 list, #44 in FY2024 and not on the FY2025 list; down 8 since FY2020.
42	William Marsh Rice University Top agencies DOI (Department of the Interior)	$25,006	0.7%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; down 18 since FY2020.
43	Brandon Adam Ragan Top agencies DOI (Department of the Interior)	$24,993	0.7%	Rank history: #13 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
44	Skyler Mavor Top agencies DOI (Department of the Interior)	$24,986	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	Activation Laboratories Ltd Top agencies DOI (Department of the Interior)	$23,989	0.6%	Rank history: #45 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; down 39 since FY2020.
46	Evart, Lucas Top agencies DOI (Department of the Interior)	$23,989	0.6%	Rank history: not on the FY2022–FY2025 lists; down 20 since FY2020.
47	Jacob Shea Top agencies DOI (Department of the Interior)	$23,429	0.6%	Rank history: #40 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
48	Trustees of the Colorado School of Mines Top agencies DOI (Department of the Interior)	$21,403	0.6%	Rank history: #64 in FY2022, #41 in FY2023, #26 in FY2024 and not on the FY2025 list; down 21 since FY2020.
49	Nikka Pauline Pacifico Top agencies DOI (Department of the Interior)	$21,310	0.6%	Rank history: #30 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
50	Phillips, Michala Top agencies USDA (Department of Agriculture)	$20,308	0.5%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
51	Brooke N Santos Top agencies DOI (Department of the Interior)	$19,989	0.5%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
52	Ji-Eun KIM Top agencies DOI (Department of the Interior)	$19,777	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Utah State University Top agencies DOI (Department of the Interior)	$18,500	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	Ortigoza, Michael Top agencies DOI (Department of the Interior)	$17,190	0.5%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
55	Gunnar Hausmann Top agencies DOI (Department of the Interior)	$16,910	0.5%	Rank history: #25 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
56	Geomorph Information Systems, LLC Top agencies USDA (Department of Agriculture)	$15,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Richard Grubb and Associates, Inc. Top agencies DOI (Department of the Interior)	$15,000	0.4%	Rank history: not on the FY2022–FY2025 lists; down 47 since FY2020.
58	Beta Analytic, LLC Top agencies USDA (Department of Agriculture)	$14,105	0.4%	Rank history: #46 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2020.
59	Jarer Biostrat, Inc. Top agencies DOI (Department of the Interior)	$13,940	0.4%	Rank history: #63 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
60	Isotropic Networks, Inc. Top agencies DOI (Department of the Interior)	$12,650	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Sharon Batiste Top agencies DOI (Department of the Interior)	$11,961	0.3%	Rank history: #15 in FY2022, #9 in FY2023, #7 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
62	Jaycee Favela Top agencies DOI (Department of the Interior)	$11,957	0.3%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
63	William Speiser Top agencies DOI (Department of the Interior)	$11,954	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Boise State University Top agencies DOI (Department of the Interior)	$11,550	0.3%	Rank history: #29 in FY2022, #44 in FY2023, not on the FY2024 list and #27 in FY2025; new, not ranked in FY2020.
65	Leticia Diaz Top agencies DOI (Department of the Interior)	$10,100	0.3%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; down 25 since FY2020.
66	Georgia Okeeffe Museum Top agencies DOI (Department of the Interior)	$10,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	The Leland Stanford Junior University Top agencies DOI (Department of the Interior)	$9,600	0.3%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
68	Bagheri, Kian Top agencies DOI (Department of the Interior)	$9,249	0.2%	Rank history: not on the FY2022–FY2025 lists; down 29 since FY2020.
69	Brandon D Chambers Top agencies DOI (Department of the Interior)	$8,455	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	The Regents of the University of Colorado Top agencies DOI (Department of the Interior)	$8,200	0.2%	Rank history: not on the FY2022 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
71	Preetkanwar Gill Top agencies DOI (Department of the Interior)	$7,694	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Phycotech, Inc. Top agencies DOI (Department of the Interior)	$7,008	0.2%	Rank history: #71 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
73	University of Kansas Top agencies DOI (Department of the Interior)	$6,995	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Montana Dept. of Public Health Through Fish Wildlife & Parks Montana Department Top agencies DOI (Department of the Interior)	$6,800	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Bethany Kharrazi Top agencies DOI (Department of the Interior)	$5,198	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Directams Inc. Top agencies DOI (Department of the Interior)	$4,110	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Kristofer Veselits Top agencies DOI (Department of the Interior)	$4,032	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
78	Qmineral Top agencies DOI (Department of the Interior)	$3,168	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	University of Texas System Through University of Texas At Austin Top agencies DOI (Department of the Interior)	$2,880	0.1%	Rank history: #6 in FY2022, #34 in FY2023, #5 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
80	Dalton Kilburg Top agencies DOI (Department of the Interior)	$537	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 71 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 $3.74 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