Top 100 Contractors in PSC AH: Natural Resources and Environment R&D Services, FY2021

Name: Top 100 Contractors in PSC AH: Natural Resources and Environment R&D Services, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 30% of FY2021 PSC AH contract dollars

Contract obligations: $87,582,411 Net of deobligations, by contracts coded PSC AH or a code under it
Contractors: 202 Parent companies with an obligation
Largest contractor: Consolidated Safety Services Incorporated $5.44 million, 6.1% 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	Consolidated Safety Services Incorporated Top agencies Commerce (Department of Commerce)	$5,443,894	6.1%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
2	Biospyder Technologies, Inc. Top agencies EPA (Environmental Protection Agency)	$3,731,238	4.1%	Rank history: #9 in FY2022, #21 in FY2023, #9 in FY2024 and #14 in FY2025; up 149 since FY2020.
3	Ameresco Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army)	$2,650,261	2.9%	Rank history: not on the FY2022–FY2025 lists; up 59 since FY2020.
4	State of California Controllers Office 6 awardees, including The Regents of the University of California, University of California Santa Cruz and University of California, Santa Barbara Top agencies Army (Department of the Army) Navy (Department of the Navy)	$2,532,395	2.8%	Rank history: #8 in FY2022, #22 in FY2023, #31 in FY2024 and not on the FY2025 list; up 6 since FY2020.
5	Limno-Tech Inc. Top agencies Army (Department of the Army)	$2,454,938	2.7%	Rank history: #7 in FY2022, #13 in FY2023, #16 in FY2024 and #48 in FY2025; new, not ranked in FY2020.
6	The Shenton Group. Inc. Top agencies Army (Department of the Army)	$2,405,602	2.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	Arcadis N.V. Through Arcadis U.s., Inc. Top agencies Army (Department of the Army)	$2,313,787	2.6%	Rank history: #13 in FY2022, #17 in FY2023, #65 in FY2024 and not on the FY2025 list; unchanged since FY2020.
8	Noblis, Inc. Top agencies Army (Department of the Army)	$1,854,249	2.1%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
9	Bennett Aerospace Inc. Top agencies Army (Department of the Army)	$1,712,557	1.9%	Rank history: #53 in FY2022, not on the FY2023 list, #77 in FY2024 and #44 in FY2025; new, not ranked in FY2020.
10	University of ST Andrews 2 awardees, including The University Court of the University of ST Andrews and Smru Limited Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,560,757	1.7%	Rank history: #14 in FY2022, #20 in FY2023, #14 in FY2024 and #62 in FY2025; down 5 since FY2020.
11	Gana-A' Yoo, Limited Through Kaiyuh Information Technologies, LLC Top agencies USAF (Department of the Air Force)	$1,522,455	1.7%	Rank history: not on the FY2022 list, #24 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
12	Oregon University System Through Oregon State University Top agencies Army (Department of the Army)	$1,516,026	1.7%	Rank history: #56 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
13	Alti LLC Top agencies Army (Department of the Army)	$1,500,000	1.7%	Rank history: not on the FY2022 list, #19 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
14	Camp Dresser & Mckee Inc. 3 awardees, including CDM Federal Programs Corporation Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense)	$1,360,383	1.5%	Rank history: #16 in FY2022, #43 in FY2023, #39 in FY2024 and not on the FY2025 list; up 30 since FY2020.
15	Geosyntec Consultants, Inc. Top agencies Army (Department of the Army)	$1,105,660	1.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; down 12 since FY2020.
16	Simetri, Inc. Top agencies Army (Department of the Army)	$1,046,841	1.2%	Rank history: #43 in FY2022, #94 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
17	State of Arizona Through University of Arizona Top agencies Army (Department of the Army)	$1,019,244	1.1%	Rank history: #63 in FY2022, not on the FY2023 list, #78 in FY2024 and not on the FY2025 list; up 9 since FY2020.
18	The Regents of the University of Colorado Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$1,013,135	1.1%	Rank history: #12 in FY2022, #9 in FY2023, #64 in FY2024 and not on the FY2025 list; up 123 since FY2020.
19	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,000,000	1.1%	Rank history: not on the FY2022 list, #7 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
20	Impossible Sensing LLC Top agencies DOI (Department of the Interior)	$899,058	1.0%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
21	Credere Associates, LLC Top agencies Army (Department of the Army)	$889,769	1.0%	Rank history: #26 in FY2022, #6 in FY2023, #22 in FY2024 and #3 in FY2025; new, not ranked in FY2020.
22	University System of Maryland 4 awardees, including University of Maryland, College Park, Towson University and University of Maryland Baltimore County Top agencies Army (Department of the Army) Commerce (Department of Commerce)	$883,276	1.0%	Rank history: #62 in FY2022, #2 in FY2023, #79 in FY2024 and not on the FY2025 list; down 5 since FY2020.
23	Continental Shelf Associates Incorporated Through CSA Ocean Sciences Inc. Top agencies DOI (Department of the Interior)	$849,821	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Pegasus Technical Services, Inc. Top agencies EPA (Environmental Protection Agency)	$829,326	0.9%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
25	University of Washington Top agencies Army (Department of the Army) Navy (Department of the Navy)	$825,236	0.9%	Rank history: #79 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
26	The Vanderbilt University Top agencies Army (Department of the Army)	$800,000	0.9%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
27	Aptim Federal Services LLC Top agencies Army (Department of the Army) EPA (Environmental Protection Agency)	$792,812	0.9%	Rank history: #72 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
28	Water Institute of the Gulf Top agencies Army (Department of the Army)	$792,188	0.9%	Rank history: #32 in FY2022, not on the FY2023–FY2024 lists and #22 in FY2025; new, not ranked in FY2020.
29	GSI Environmental Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$762,088	0.8%	Rank history: #21 in FY2022, #45 in FY2023, #33 in FY2024 and not on the FY2025 list; up 1 since FY2020.
30	Applied Ocean Sciences, LLC Top agencies Navy (Department of the Navy)	$744,395	0.8%	Rank history: #98 in FY2022, not on the FY2023–FY2024 lists and #96 in FY2025; new, not ranked in FY2020.
31	Purdue University Top agencies Army (Department of the Army)	$725,875	0.8%	Rank history: #23 in FY2022, #62 in FY2023, not on the FY2024 list and #95 in FY2025; up 29 since FY2020.
32	University of Delaware Top agencies Army (Department of the Army)	$724,770	0.8%	Rank history: #37 in FY2022, #38 in FY2023, #55 in FY2024 and not on the FY2025 list; down 11 since FY2020.
33	Trustees of the Colorado School of Mines Top agencies Army (Department of the Army)	$722,206	0.8%	Rank history: #17 in FY2022, #41 in FY2023, #5 in FY2024 and #20 in FY2025; down 17 since FY2020.
34	Oregon Health & Science University Top agencies Army (Department of the Army)	$721,433	0.8%	Rank history: #24 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
35	Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNO Top agencies Army (Department of the Army) Navy (Department of the Navy)	$672,967	0.7%	Rank history: #48 in FY2022, #52 in FY2023, #20 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
36	New York University Top agencies Army (Department of the Army)	$671,488	0.7%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
37	Anchor Qea, Inc. Top agencies Army (Department of the Army)	$667,300	0.7%	Rank history: #52 in FY2022, #26 in FY2023, #61 in FY2024 and #57 in FY2025; new, not ranked in FY2020.
38	Luna Innovations Incorporated Top agencies Army (Department of the Army)	$666,396	0.7%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 32 since FY2020.
39	Trustees of Tufts College Top agencies Army (Department of the Army)	$663,216	0.7%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
40	Black Tusk Geophysics Inc. Top agencies Army (Department of the Army)	$661,165	0.7%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
41	Cornell University Top agencies Army (Department of the Army)	$653,062	0.7%	Rank history: #92 in FY2022, #63 in FY2023, #93 in FY2024 and not on the FY2025 list; up 18 since FY2020.
42	Board of Governers State University System of Florida 2 awardees, including Florida State University and University of Florida Top agencies Army (Department of the Army)	$638,987	0.7%	Rank history: #20 in FY2022, #46 in FY2023, #57 in FY2024 and not on the FY2025 list; up 21 since FY2020.
43	Paragon Professional Services LLC Top agencies Army (Department of the Army)	$638,819	0.7%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
44	Nalas Engineering Services, LLC Top agencies Army (Department of the Army)	$633,074	0.7%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
45	Tdi-Brooks International Inc. Top agencies Commerce (Department of Commerce)	$571,744	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Colorado State University System Through Colorado State University Top agencies Army (Department of the Army)	$561,617	0.6%	Rank history: #44 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 66 since FY2020.
47	Typhoon HIL Inc. Top agencies Army (Department of the Army)	$557,373	0.6%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
48	Astin Holdings L.P. Through Lynntech Inc. Top agencies Army (Department of the Army)	$544,021	0.6%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
49	University of North Carolina at Chapel Hill 2 awardees, including University of North Carolina At Charlotte and North Carolina State University Top agencies Army (Department of the Army)	$509,239	0.6%	Rank history: #41 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; up 79 since FY2020.
50	The Boeing Company Top agencies Army (Department of the Army)	$500,707	0.6%	Rank history: #85 in FY2022, #48 in FY2023, not on the FY2024 list and #70 in FY2025; new, not ranked in FY2020.
51	Lockheed Martin Corporation Top agencies NASA (National Aeronautics and Space Administration)	$500,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Leonardo S.p.A. Through DRS Network & Imaging Systems LLC Top agencies NASA (National Aeronautics and Space Administration)	$500,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	General Atomics Top agencies NASA (National Aeronautics and Space Administration)	$500,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	The Royal Institution for the Advancement of Learning Top agencies Army (Department of the Army)	$500,000	0.6%	Rank history: #42 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 47 since FY2020.
55	L3Harris Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$499,973	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Westat, Inc. Top agencies EPA (Environmental Protection Agency)	$499,285	0.6%	Rank history: not on the FY2022–FY2025 lists; down 32 since FY2020.
57	RTX Corporation Through Raytheon Company Top agencies NASA (National Aeronautics and Space Administration)	$493,170	0.5%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; down 46 since FY2020.
58	Worcester Polytechnic Institute Top agencies Army (Department of the Army)	$481,881	0.5%	Rank history: #31 in FY2022, #32 in FY2023, #89 in FY2024 and #37 in FY2025; up 20 since FY2020.
59	Regents of the University of Minnesota Top agencies Army (Department of the Army) Navy (Department of the Navy)	$481,559	0.5%	Rank history: #38 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 39 since FY2020.
60	Qinetiq Group PLC Through Qinetiq Inc. Top agencies DOI (Department of the Interior)	$477,900	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Drexel University Top agencies Army (Department of the Army)	$475,000	0.5%	Rank history: #34 in FY2022, #93 in FY2023, #42 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
62	Nevada State Veterans Home Through Board of Regents of Nevada System of Higher Education Top agencies Army (Department of the Army)	$464,862	0.5%	Rank history: #57 in FY2022, #10 in FY2023, #6 in FY2024 and not on the FY2025 list; down 17 since FY2020.
63	Dmax Plasma Inc. Top agencies Army (Department of the Army)	$454,428	0.5%	Rank history: not on the FY2022 list, #73 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2020.
64	Electric Power Research Institute Inc. Top agencies Army (Department of the Army)	$452,330	0.5%	Rank history: #27 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2020.
65	FEV North America Inc. Top agencies EPA (Environmental Protection Agency)	$451,722	0.5%	Rank history: #29 in FY2022, not on the FY2023 list, #45 in FY2024 and not on the FY2025 list; up 98 since FY2020.
66	President and Fellows of Harvard College Top agencies Army (Department of the Army)	$447,921	0.5%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
67	The Praevius Group, Inc. Top agencies Army (Department of the Army)	$445,564	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Texas TECH University System Top agencies Army (Department of the Army)	$440,391	0.5%	Rank history: #45 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
69	Clarkson University Top agencies Army (Department of the Army)	$437,583	0.5%	Rank history: not on the FY2022–FY2024 lists and #81 in FY2025; up 27 since FY2020.
70	Clemson University Top agencies Army (Department of the Army)	$431,508	0.5%	Rank history: #46 in FY2022, #44 in FY2023, #28 in FY2024 and not on the FY2025 list; down 14 since FY2020.
71	Spectris PLC 2 awardees, including Hottinger Bruel & Kjaer Solutions LLC and Bruel & Kjaer North America Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$428,710	0.5%	Rank history: #83 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
72	Native Hawaiian Community Development Corporation Through GSI North America Inc. Top agencies Army (Department of the Army)	$426,296	0.5%	Rank history: not on the FY2022 list, #75 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
73	EA Engineering, Science, and Technology, Inc., PBC Top agencies Army (Department of the Army)	$424,192	0.5%	Rank history: #15 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; down 30 since FY2020.
74	University of Notre Dame DU Lac Top agencies Army (Department of the Army)	$413,361	0.5%	Rank history: #59 in FY2022, #90 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
75	Duke University Top agencies Army (Department of the Army) Navy (Department of the Navy)	$407,791	0.5%	Rank history: not on the FY2022–FY2025 lists; down 66 since FY2020.
76	University of Texas System 2 awardees, including University of Texas At Austin Top agencies Army (Department of the Army)	$406,235	0.5%	Rank history: #33 in FY2022, #34 in FY2023, #51 in FY2024 and not on the FY2025 list; up 49 since FY2020.
77	The Water Research Foundation Top agencies Army (Department of the Army)	$400,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Referentia Systems Inc. Top agencies Army (Department of the Army)	$400,000	0.4%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
79	Geomorph Information Systems, LLC Top agencies USDA (Department of Agriculture)	$373,538	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Villanova University In the State of Pennsylvania Top agencies Army (Department of the Army)	$369,475	0.4%	Rank history: not on the FY2022–FY2025 lists; up 65 since FY2020.
81	Converge Strategies LLC Top agencies Army (Department of the Army)	$354,248	0.4%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
82	Massachusetts Institute of Technology Top agencies Army (Department of the Army)	$339,852	0.4%	Rank history: not on the FY2022 list, #56 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
83	Serco North America (Holdings) Inc Through Serco Inc. Top agencies DOI (Department of the Interior)	$337,027	0.4%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
84	The NDN Companies Top agencies USAF (Department of the Air Force)	$327,683	0.4%	Rank history: #86 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
85	Washington State University Top agencies Army (Department of the Army)	$318,919	0.4%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
86	Michigan State University Top agencies EPA (Environmental Protection Agency)	$315,019	0.4%	Rank history: not on the FY2022–FY2024 lists and #100 in FY2025; new, not ranked in FY2020.
87	Brown University Top agencies Army (Department of the Army) Navy (Department of the Navy)	$313,940	0.3%	Rank history: #82 in FY2022, #64 in FY2023, #34 in FY2024 and #24 in FY2025; down 2 since FY2020.
88	White River Technologies, Inc. Top agencies Army (Department of the Army)	$310,234	0.3%	Rank history: not on the FY2022–FY2025 lists; up 85 since FY2020.
89	University of Missouri System 2 awardees, including The Curators of the University of Missouri Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$308,815	0.3%	Rank history: #76 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
90	The Leland Stanford Junior University Top agencies Army (Department of the Army)	$297,982	0.3%	Rank history: not on the FY2022–FY2025 lists; down 43 since FY2020.
91	Secretary of State Connecticut Through University of Connecticut Top agencies Army (Department of the Army)	$296,000	0.3%	Rank history: not on the FY2022–FY2025 lists; up 47 since FY2020.
92	Great Lakes Environmental Center, Inc. Top agencies EPA (Environmental Protection Agency)	$295,125	0.3%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
93	Materials Modifications Inc. Top agencies Army (Department of the Army)	$292,718	0.3%	Rank history: not on the FY2022–FY2025 lists; up 40 since FY2020.
94	The Regents of the University of California Top agencies Army (Department of the Army)	$275,657	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	University of Alaska System Through University of Alaska Fairbanks Top agencies Army (Department of the Army)	$272,924	0.3%	Rank history: #49 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; down 70 since FY2020.
96	The Commonwealth of Massachusetts Through Northeastern University Top agencies Army (Department of the Army)	$270,000	0.3%	Rank history: #51 in FY2022, #29 in FY2023, #36 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
97	Battelle Memorial Institute Top agencies Army (Department of the Army)	$268,780	0.3%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; down 79 since FY2020.
98	University Corporation for Atmospheric Research Top agencies Commerce (Department of Commerce)	$250,352	0.3%	Rank history: #6 in FY2022, #16 in FY2023, #3 in FY2024 and #2 in FY2025; new, not ranked in FY2020.
99	University of South Australia Top agencies Army (Department of the Army)	$248,832	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Switch Operations Inc. Top agencies Army (Department of the Army)	$246,213	0.3%	Rank history: not on the FY2022–FY2025 lists; down 36 since FY2020.

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100 of 202 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC AH

Code	Net obligations	Largest contractor
AH91 R&D – Environmental Protection: Other (Basic Research)	$33,287,860	Arcadis N.V.

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 $90 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

Who were the top 10 PSC AH contractors in FY2021?

1. Consolidated Safety Services Incorporated ($5.44M), 2. Biospyder Technologies, Inc. ($3.73M), 3. Ameresco Inc. ($2.65M), 4. State of California Controllers Office ($2.53M), 5. Limno-Tech Inc. ($2.45M), 6. The Shenton Group. Inc. ($2.41M), 7. Arcadis N.V. ($2.31M), 8. Noblis, Inc. ($1.85M), 9. Bennett Aerospace Inc. ($1.71M), 10. University of ST Andrews ($1.56M).

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