Top 100 Contractors in NAICS 541370: Surveying and Mapping (except Geophysical) Services, FY2021

Name: Top 100 Contractors in NAICS 541370: Surveying and Mapping (except Geophysical) Services, FY2021
Creator: GovTribe

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

The top 10 won 61% of FY2021 NAICS 541370 contract dollars

Contract obligations: $385,694,034 Net of deobligations, by contracts coded NAICS 541370
Contractors: 282 Parent companies with an obligation
Largest contractor: The Boeing Company $66.7 million, 16.3% 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	The Boeing Company Through Insitu, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$66,688,225	16.3%	Rank history: #1 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; up 1 since FY2020.
2	Textron Inc. Through Textron Systems Corporation Top agencies Navy (Department of the Navy)	$61,898,039	15.2%	Rank history: #3 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since FY2020.
3	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies Navy (Department of the Navy)	$30,191,774	7.4%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
4	Wmr-532 LLC Top agencies Army (Department of the Army)	$24,929,576	6.1%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
5	Surdex Corporation Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$16,240,398	4.0%	Rank history: #6 in FY2022, #7 in FY2023, #6 in FY2024 and not on the FY2025 list; up 3 since FY2020.
6	RBA Group the 3 awardees, including NV5 Geospatial, Inc., Geodynamics LLC and Nv5, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) Commerce (Department of Commerce)	$14,667,197	3.6%	Rank history: #4 in FY2022, #4 in FY2023, not on the FY2024 list and #68 in FY2025; up 6 since FY2020.
7	Woolpert, Inc. 3 awardees, including Geomatics Data Solutions, A Woolpert Company, LLC Top agencies Commerce (Department of Commerce) Army (Department of the Army) USAF (Department of the Air Force)	$11,626,767	2.8%	Rank history: #2 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; up 3 since FY2020.
8	Fugro Geospatial Inc. 5 awardees, including Fugro USA Marine, Inc., Fugro USA Land, Inc. and Fugro Consult GMBH Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$8,134,106	2.0%	Rank history: #12 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 52 since FY2020.
9	Towill Holding Company Inc Through Towill, Inc. Top agencies Army (Department of the Army)	$7,132,099	1.7%	Rank history: #17 in FY2022, #23 in FY2023, #62 in FY2024 and not on the FY2025 list; up 20 since FY2020.
10	Secom Co., Ltd. Through Keystone Aerial Surveys, Inc. Top agencies USDA (Department of Agriculture)	$6,403,426	1.6%	Rank history: #20 in FY2022, #25 in FY2023, #17 in FY2024 and not on the FY2025 list; up 4 since FY2020.
11	Insitu, Inc. Top agencies Navy (Department of the Navy)	$6,174,505	1.5%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
12	Seaside Engineering & Surveying, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$5,102,169	1.2%	Rank history: #25 in FY2022, #28 in FY2023, #33 in FY2024 and #23 in FY2025; up 11 since FY2020.
13	Chustz Surveying LLC Top agencies Army (Department of the Army)	$5,053,542	1.2%	Rank history: #23 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
14	Etrac, A Woolpert Company Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$4,913,100	1.2%	Rank history: #11 in FY2022, #6 in FY2023, #9 in FY2024 and #6 in FY2025; up 3 since FY2020.
15	Terrasond Limited Top agencies Commerce (Department of Commerce)	$4,709,346	1.2%	Rank history: #16 in FY2022, #13 in FY2023, #10 in FY2024 and #16 in FY2025; unchanged since FY2020.
16	David Evans Enterprises Inc. Through David Evans and Associates, Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$4,187,492	1.0%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 67 since FY2020.
17	Geodynamics LLC Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$3,899,803	1.0%	Rank history: not on the FY2022–FY2023 lists, #11 in FY2024 and #54 in FY2025; up 1 since FY2020.
18	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies Commerce (Department of Commerce)	$3,894,849	1.0%	Rank history: #15 in FY2022, #21 in FY2023, #16 in FY2024 and not on the FY2025 list; up 7 since FY2020.
19	Ocean Surveys, Inc. Top agencies Commerce (Department of Commerce)	$3,498,389	0.9%	Rank history: #21 in FY2022, #9 in FY2023, #8 in FY2024 and #20 in FY2025; up 1 since FY2020.
20	Continental Mapping Consultants LLC 2 awardees, including Axim Geospatial LLC and Geographic Information Services, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$3,314,392	0.8%	Rank history: #35 in FY2022, #24 in FY2023, #29 in FY2024 and #92 in FY2025; up 39 since FY2020.
21	Geospatial Consulting Group International LLC Top agencies Navy (Department of the Navy)	$2,963,217	0.7%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
22	Magnolia River Services, Inc. Through Optimal Geo, LLC Top agencies Army (Department of the Army)	$2,957,280	0.7%	Rank history: #9 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
23	Michael Baker International, LLC Top agencies DOT (Department of Transportation)	$2,865,864	0.7%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
24	Textron Systems Corporation Top agencies Navy (Department of the Navy)	$2,515,612	0.6%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; down 18 since FY2020.
25	Koniag, Inc. Through Pacarctic, LLC Top agencies Navy (Department of the Navy)	$2,336,110	0.6%	Rank history: #63 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
26	Saint Marys University of Minnesota Top agencies DOI (Department of the Interior)	$2,072,356	0.5%	Rank history: #27 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
27	Precision Measurements Inc. Top agencies Army (Department of the Army)	$1,849,834	0.5%	Rank history: #33 in FY2022, #64 in FY2023, #49 in FY2024 and not on the FY2025 list; up 86 since FY2020.
28	Merrick & Company Top agencies Army (Department of the Army)	$1,762,011	0.4%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
29	American Engineers Inc. Top agencies Army (Department of the Army)	$1,743,090	0.4%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; up 136 since FY2020.
30	EMC Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$1,720,623	0.4%	Rank history: #10 in FY2022, #26 in FY2023, #19 in FY2024 and #66 in FY2025; down 17 since FY2020.
31	The Charles Stark Draper Laboratory, Inc. Top agencies USAF (Department of the Air Force)	$1,708,280	0.4%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
32	University of Montana System Through University of Montana Top agencies DOI (Department of the Interior)	$1,702,280	0.4%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
33	The Dewberry Companies LC 2 awardees, including Dewberry Engineers Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$1,546,606	0.4%	Rank history: #7 in FY2022, #5 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
34	Aerial Services, Inc. Top agencies USDA (Department of Agriculture)	$1,513,848	0.4%	Rank history: #29 in FY2022, #36 in FY2023, #26 in FY2024 and #21 in FY2025; up 14 since FY2020.
35	Airborne Snow Observatories Inc. Top agencies DOI (Department of the Interior) NASA (National Aeronautics and Space Administration)	$1,498,730	0.4%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
36	Airborne Aspect, Inc. Top agencies EPA (Environmental Protection Agency)	$1,486,900	0.4%	Rank history: not on the FY2022 list, #27 in FY2023, #28 in FY2024 and #24 in FY2025; down 1 since FY2020.
37	Lowe Engineers, LLC 2 awardees Top agencies Army (Department of the Army)	$1,435,397	0.4%	Rank history: not on the FY2022 list, #53 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2020.
38	Midland Surveying, Inc. Top agencies NASA (National Aeronautics and Space Administration) USDA (Department of Agriculture)	$1,421,248	0.3%	Rank history: #51 in FY2022, #45 in FY2023, #13 in FY2024 and not on the FY2025 list; down 6 since FY2020.
39	Park Coastal Surveying, LLC Top agencies Army (Department of the Army)	$1,339,974	0.3%	Rank history: #59 in FY2022, #81 in FY2023, #48 in FY2024 and #85 in FY2025; up 2 since FY2020.
40	Dimco Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$1,309,280	0.3%	Rank history: #34 in FY2022, #60 in FY2023, #46 in FY2024 and #49 in FY2025; up 4 since FY2020.
41	Johnson-Mcadams Surveying & Mapping LLC Top agencies Army (Department of the Army)	$1,259,080	0.3%	Rank history: #24 in FY2022, #32 in FY2023, #30 in FY2024 and #28 in FY2025; down 20 since FY2020.
42	Dj&A, P.C. Top agencies Army (Department of the Army) DOI (Department of the Interior) USDA (Department of Agriculture)	$1,114,361	0.3%	Rank history: #32 in FY2022, #57 in FY2023, #61 in FY2024 and not on the FY2025 list; up 1 since FY2020.
43	Ducks Unlimited, Inc. Top agencies DOI (Department of the Interior)	$1,071,846	0.3%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
44	Gahagan & Bryant Associates, Inc. 3 awardees Top agencies Army (Department of the Army)	$1,027,253	0.3%	Rank history: #60 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
45	Oil Price Information Service LLC Through IHS Global Inc. Top agencies DOI (Department of the Interior)	$983,369	0.2%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
46	Prairie Engineers, P.C. Top agencies Army (Department of the Army)	$977,332	0.2%	Rank history: #39 in FY2022, #39 in FY2023, #40 in FY2024 and #36 in FY2025; up 5 since FY2020.
47	B & F Engineering Inc. Top agencies Army (Department of the Army)	$963,095	0.2%	Rank history: #52 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2020.
48	Tukuh Technologies, LLC Top agencies Army (Department of the Army)	$950,695	0.2%	Rank history: #47 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
49	Hyatt Survey Services, Inc. Top agencies Army (Department of the Army)	$925,182	0.2%	Rank history: not on the FY2022 list, #41 in FY2023, #68 in FY2024 and #76 in FY2025; down 4 since FY2020.
50	Industrieanlagen- Betriebsgesellschaft MIT Beschrankter Haftung Through Industrieanlagen-Betriebsgesellschaft MIT Beschränkter Haftung Top agencies Army (Department of the Army)	$914,714	0.2%	Rank history: #22 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; up 54 since FY2020.
51	Mountain Air LLC Top agencies USDA (Department of Agriculture)	$908,829	0.2%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
52	Planetscape Ai LLC Top agencies DOS (Department of State)	$898,700	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	R. Lopez De Azua & Assoc, Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$874,165	0.2%	Rank history: #75 in FY2022, #56 in FY2023, #88 in FY2024 and #56 in FY2025; up 3 since FY2020.
54	Precision Surveys Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$845,990	0.2%	Rank history: not on the FY2022–FY2023 lists, #43 in FY2024 and #55 in FY2025; up 8 since FY2020.
55	Javier E Bidot & Associates P.s.c Top agencies Army (Department of the Army)	$821,878	0.2%	Rank history: #84 in FY2022, #55 in FY2023, #44 in FY2024 and #96 in FY2025; down 18 since FY2020.
56	Allegheny Surveys Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$812,477	0.2%	Rank history: #56 in FY2022, #54 in FY2023, #80 in FY2024 and #82 in FY2025; down 9 since FY2020.
57	Florabama Geospatial Solutions, LLC 2 awardees, including Fgs-Grw MP, LLC Top agencies Army (Department of the Army)	$784,183	0.2%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 62 since FY2020.
58	Tetra Tech, Inc. 2 awardees Top agencies Commerce (Department of Commerce) Navy (Department of the Navy)	$767,359	0.2%	Rank history: #28 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2020.
59	N T B Associates Inc. Through NTB Associates, Inc. Top agencies USDA (Department of Agriculture)	$713,880	0.2%	Rank history: not on the FY2022 list, #42 in FY2023, #65 in FY2024 and not on the FY2025 list; down 4 since FY2020.
60	Paradigm Systems GIS Inc. Top agencies USDA (Department of Agriculture)	$675,151	0.2%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
61	Landtech, Inc. Top agencies Army (Department of the Army)	$652,349	0.2%	Rank history: not on the FY2022–FY2024 lists and #100 in FY2025; down 7 since FY2020.
62	Guzman & Munoz Engineering and Surveying, Inc. Top agencies USDA (Department of Agriculture)	$644,054	0.2%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
63	Geographic Information Services, Inc. Top agencies USAF (Department of the Air Force)	$641,880	0.2%	Rank history: not on the FY2022–FY2023 lists, #57 in FY2024 and #31 in FY2025; down 25 since FY2020.
64	Minister & Glaeser Surveying, Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$595,213	0.1%	Rank history: #42 in FY2022, #91 in FY2023, #51 in FY2024 and #78 in FY2025; down 7 since FY2020.
65	Sigma Consulting Group Inc. Top agencies USDA (Department of Agriculture)	$591,325	0.1%	Rank history: #57 in FY2022, #76 in FY2023 and not on the FY2024–FY2025 lists; up 65 since FY2020.
66	E B P Design Group Consulting Engineers PSC Top agencies Army (Department of the Army)	$581,668	0.1%	Rank history: not on the FY2022–FY2025 lists; up 113 since FY2020.
67	Pickett and Associates, LLC Top agencies Army (Department of the Army)	$546,911	0.1%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
68	NV5 Geospatial, Inc. Top agencies Commerce (Department of Commerce)	$506,144	0.1%	Rank history: not on the FY2022–FY2023 lists, #4 in FY2024 and #2 in FY2025; down 59 since FY2020.
69	Nana Regional Corporation Inc Through Dowl, LLC Top agencies Army (Department of the Army)	$500,384	0.1%	Rank history: #77 in FY2022, #90 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2020.
70	State of Florida Through Florida Fish and Wildlife Conservation Commission Top agencies Commerce (Department of Commerce)	$485,523	0.1%	Rank history: #62 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
71	J Foster & Associates LLC Top agencies DOI (Department of the Interior)	$476,141	0.1%	Rank history: #69 in FY2022, #46 in FY2023, #60 in FY2024 and #45 in FY2025; up 5 since FY2020.
72	Native American Industrial Solutions LLC Top agencies Army (Department of the Army)	$439,008	0.1%	Rank history: not on the FY2022–FY2025 lists; up 141 since FY2020.
73	Honor Service Company Top agencies DOI (Department of the Interior) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$416,882	0.1%	Rank history: #36 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
74	Mckim & Creed, Inc. Top agencies Army (Department of the Army)	$414,218	0.1%	Rank history: #70 in FY2022, #67 in FY2023, #47 in FY2024 and #35 in FY2025; down 8 since FY2020.
75	Thouvenot Wade & Moerchen Inc. Top agencies Army (Department of the Army)	$412,057	0.1%	Rank history: #54 in FY2022, #33 in FY2023, #59 in FY2024 and #26 in FY2025; down 25 since FY2020.
76	Artisan Consulting Engineers LLC Top agencies USDA (Department of Agriculture)	$408,370	0.1%	Rank history: #43 in FY2022, #62 in FY2023, #89 in FY2024 and not on the FY2025 list; up 39 since FY2020.
77	The Whitestar Corporation Top agencies Commerce (Department of Commerce)	$400,000	0.1%	Rank history: not on the FY2022–FY2024 lists and #94 in FY2025; new, not ranked in FY2020.
78	Kfs, LLC Top agencies USAF (Department of the Air Force)	$399,439	0.1%	Rank history: #61 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
79	Degrove Surveyors, Inc. Top agencies Army (Department of the Army)	$381,130	0.1%	Rank history: #74 in FY2022, #38 in FY2023, not on the FY2024 list and #74 in FY2025; down 30 since FY2020.
80	Environmental Research Incorporated Top agencies DOJ (Department of Justice)	$342,241	0.1%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
81	Axis Geospatial LLC Top agencies Army (Department of the Army)	$342,000	0.1%	Rank history: #85 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
82	Southwest Water Design, L.L.C. Top agencies DOI (Department of the Interior)	$316,273	0.1%	Rank history: not on the FY2022 list, #82 in FY2023, not on the FY2024 list and #73 in FY2025; up 46 since FY2020.
83	APS Survey & Mapping, Inc. Top agencies Army (Department of the Army)	$309,250	0.1%	Rank history: #53 in FY2022, #50 in FY2023, not on the FY2024 list and #32 in FY2025; down 16 since FY2020.
84	Allpoints Gis, Inc. Top agencies USDA (Department of Agriculture)	$308,878	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Berrios Montes Luis Top agencies USDA (Department of Agriculture)	$305,392	0.1%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
86	Precision Integrated Programs LLC Top agencies USDA (Department of Agriculture)	$301,902	0.1%	Rank history: #58 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; up 125 since FY2020.
87	R & M Consultants, Inc. Top agencies Army (Department of the Army)	$300,272	0.1%	Rank history: #89 in FY2022, not on the FY2023 list, #92 in FY2024 and not on the FY2025 list; up 21 since FY2020.
88	Carroll Engineering Corporation Through Carroll Engineering of N.j., LLC Top agencies USDA (Department of Agriculture)	$299,548	0.1%	Rank history: not on the FY2022–FY2025 lists; up 44 since FY2020.
89	VGW Geospatial Joint Venture Top agencies Army (Department of the Army)	$298,855	0.1%	Rank history: not on the FY2022–FY2025 lists; up 51 since FY2020.
90	Boundless Spatial Inc. 2 awardees, including Planet Labs Inc. and Planet Labs Federal, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$293,516	0.1%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; up 43 since FY2020.
91	REY Engineers Inc. Top agencies Army (Department of the Army)	$291,324	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Agrim Julio C Soto Serrano CSP Top agencies USDA (Department of Agriculture)	$290,448	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
93	The Atlantic Group LLC Top agencies DOI (Department of the Interior)	$268,934	0.1%	Rank history: not on the FY2022–FY2023 lists, #35 in FY2024 and #22 in FY2025; down 77 since FY2020.
94	Aerial Information Systems, Inc. Top agencies DOI (Department of the Interior)	$258,783	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Corelogic Solutions LLC Top agencies USDA (Department of Agriculture)	$256,234	0.1%	Rank history: not on the FY2022 list, #92 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Ragan-Smith-Associates, LLC Top agencies USDA (Department of Agriculture)	$255,537	0.1%	Rank history: #87 in FY2022, not on the FY2023 list, #72 in FY2024 and not on the FY2025 list; down 12 since FY2020.
97	Upper Mississippi River Basin Association Top agencies EPA (Environmental Protection Agency)	$250,000	0.1%	Rank history: not on the FY2022 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 39 since FY2020.
98	Element Environmental, LLC Top agencies Navy (Department of the Navy)	$245,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Great Lakes Commission Top agencies EPA (Environmental Protection Agency)	$245,000	0.1%	Rank history: not on the FY2022 list, #89 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
100	West Consultants, Inc. Top agencies DOI (Department of the Interior)	$241,349	0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.

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100 of 282 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 $408 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 NAICS 541370 contractors in FY2021?

1. The Boeing Company ($66.7M), 2. Textron Inc. ($61.9M), 3. General Atomic Technologies Corporation ($30.2M), 4. Wmr-532 LLC ($24.9M), 5. Surdex Corporation ($16.2M), 6. RBA Group the ($14.7M), 7. Woolpert, Inc. ($11.6M), 8. Fugro Geospatial Inc. ($8.13M), 9. Towill Holding Company Inc ($7.13M), 10. Secom Co., Ltd. ($6.4M).

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