Top 100 National Transportation Safety Board Contractors, FY2023

Name: Top 100 National Transportation Safety Board Contractors, FY2023
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Agency page on GovTribe

The top 10 won 64% of FY2023 National Transportation Safety Board contract dollars

Contract obligations: $17,947,209 Net of deobligations, by the National Transportation Safety Board and its offices
Contractors: 105 Parent companies with an obligation
Largest contractor: Deloitte LLP $4.37 million, 23.7% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Deloitte LLP Through Deloitte Consulting LLP Top NAICS codes 541512 Computer Systems Design Services	$4,366,170	23.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	MCP Computer Products Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$1,728,428	9.4%	Rank history: #7 in FY2021, #10 in FY2022, #17 in FY2024 and #35 in FY2025; up 8 since FY2022.
3	Science Applications International Corporation Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,504,273	8.2%	Rank history: not on the FY2021 list, #3 in FY2022, #2 in FY2024 and not on the FY2025 list; unchanged since FY2022.
4	Insight Public Sector Inc. 2 awardees, including Pcmg, Inc. Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing	$1,136,728	6.2%	Rank history: #6 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
5	Nucorevision Inc. Top NAICS codes 541511 Custom Computer Programming Services	$744,369	4.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
6	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top NAICS codes 541519 Other Computer Related Services	$598,892	3.3%	Rank history: #2 in FY2021, #7 in FY2022, #9 in FY2024 and #7 in FY2025; up 1 since FY2022.
7	Potomac Creek Associates, L.L.C. Top NAICS codes 531120 Lessors of Nonresidential Buildings (except Miniwarehouses)	$491,020	2.7%	Rank history: #9 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
8	Sectek, Inc. Top NAICS codes 561612 Security Guards and Patrol Services	$456,093	2.5%	Rank history: #8 in FY2021, #5 in FY2022, #7 in FY2024 and #8 in FY2025; down 3 since FY2022.
9	Inspire Events LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 561920 Convention and Trade Show Organizers	$431,784	2.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
10	Netsync Network Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$386,908	2.1%	Rank history: #29 in FY2021, #12 in FY2022, #20 in FY2024 and #12 in FY2025; up 2 since FY2022.
11	Deloitte Consulting LLP Top NAICS codes 541512 Computer Systems Design Services	$383,495	2.1%	Rank history: not on the FY2021 list, #4 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
12	Teya Enterprises LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$356,143	1.9%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2024 and #83 in FY2025; new.
13	At&T Inc. 3 awardees, including Att Mobility LLC and Tyto Government Solutions Inc. Top NAICS codes 517312 Wireless Telecommunications Carriers (except Satellite) 541519 Other Computer Related Services	$305,882	1.7%	Rank history: #16 in FY2021, #13 in FY2022, #15 in FY2024 and #14 in FY2025; unchanged since FY2022.
14	Verizon Communications Inc. Through Verizon Business Network Services LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517919 All Other Telecommunications 517111 Wired Telecommunications Carriers	$271,942	1.5%	Rank history: #12 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
15	Ebs-4U Inc. Top NAICS codes 561210 Facilities Support Services	$267,412	1.5%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2024 and #27 in FY2025; new.
16	Crittenton Consulting Group, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$262,804	1.4%	Rank history: #10 in FY2021, #9 in FY2022, #10 in FY2024 and #13 in FY2025; down 7 since FY2022.
17	Gartner, Inc. Top NAICS codes 541519 Other Computer Related Services	$225,183	1.2%	Rank history: #18 in FY2021, #8 in FY2022, #13 in FY2024 and #17 in FY2025; down 9 since FY2022.
18	Metgreen Solutions Inc Top NAICS codes 541519 Other Computer Related Services	$214,977	1.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Standard-Blazar, LLC Top NAICS codes 541519 Other Computer Related Services	$197,246	1.1%	Rank history: not on the FY2021 list, #14 in FY2022, #8 in FY2024 and #11 in FY2025; down 5 since FY2022.
20	Equinix, Inc. Top NAICS codes 541519 Other Computer Related Services	$191,759	1.0%	Rank history: #22 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
21	Free State Reporting, Inc. Top NAICS codes 561320 Temporary Help Services	$191,610	1.0%	Rank history: #26 in FY2021, #17 in FY2022, #23 in FY2024 and #33 in FY2025; down 4 since FY2022.
22	Open Text Corporation Through Open Text Public Sector Solutions, Inc. Top NAICS codes 443120 Computer and Software Stores	$181,051	1.0%	Rank history: #21 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
23	The Winvale Group, LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$180,437	1.0%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2024 and #28 in FY2025; new.
24	Redhawk It Solutions, LLC Top NAICS codes 541519 Other Computer Related Services	$126,202	0.7%	Rank history: not on the FY2021 list, #18 in FY2022, #24 in FY2024 and #22 in FY2025; down 6 since FY2022.
25	GMG Management Consulting Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$124,848	0.7%	Rank history: #27 in FY2021, #20 in FY2022, #26 in FY2024 and #24 in FY2025; down 5 since FY2022.
26	MARK43 Inc. Top NAICS codes 513210 Software Publishers	$104,920	0.6%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2024 and #42 in FY2025; new.
27	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$104,685	0.6%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2024 and not on the FY2025 list; new.
28	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services	$102,352	0.6%	Rank history: #17 in FY2021, #23 in FY2022, #5 in FY2024 and #6 in FY2025; down 5 since FY2022.
29	Windrose Media LLC Top NAICS codes 516210 Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers	$100,800	0.5%	Rank history: #30 in FY2021, #31 in FY2022, #14 in FY2024 and #23 in FY2025; up 2 since FY2022.
30	DET Norske Veritas Holding (USA), Inc Through DNV USA Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$93,751	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	United Parcel Service Inc. Top NAICS codes 492110 Couriers and Express Delivery Services	$91,000	0.5%	Rank history: #35 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
32	Thomson Reuters (Tax & Accounting) Inc. Through West Publishing Corporation Top NAICS codes 511210 Software Publishers	$88,321	0.5%	Rank history: not on the FY2021 list, #25 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
33	Diligent Corporation Top NAICS codes 513210 Software Publishers	$87,500	0.5%	Rank history: #51 in FY2021, #44 in FY2022, #28 in FY2024 and not on the FY2025 list; up 11 since FY2022.
34	Systems Engineering Services Corporation Through Systems Engineering Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$84,360	0.5%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and #37 in FY2025; new.
35	Faro Technologies Inc. Top NAICS codes 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables	$79,217	0.4%	Rank history: #71 in FY2021, #65 in FY2022, not on the FY2024 list and #67 in FY2025; up 30 since FY2022.
36	Enterprise Technology Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$78,550	0.4%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2024 and #61 in FY2025; new.
37	Advanced Rotorcraft Technology, Inc. Top NAICS codes 513210 Software Publishers 511210 Software Publishers	$77,900	0.4%	Rank history: #72 in FY2021, #62 in FY2022, #66 in FY2024 and #48 in FY2025; up 25 since FY2022.
38	Grey Wall Software, LLC Top NAICS codes 511210 Software Publishers	$77,775	0.4%	Rank history: #33 in FY2021, #29 in FY2022, #31 in FY2024 and #55 in FY2025; down 9 since FY2022.
39	Global Telecom & Technology Inc. Through GTT Americas, LLC Top NAICS codes 517111 Wired Telecommunications Carriers	$73,547	0.4%	Rank history: #31 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
40	Curtiss-Wright Corporation Through Penny & Giles Aerospace Limited Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$56,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	Exelon Corporation 2 awardees, including Peco Energy Company Top NAICS codes 221112 Fossil Fuel Electric Power Generation	$54,961	0.3%	Rank history: #78 in FY2021, #34 in FY2022, #36 in FY2024 and not on the FY2025 list; down 7 since FY2022.
42	Engineering Systems Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$54,460	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	Thermo Electron Corporation 2 awardees, including FEI Company and Thermo Electron North America LLC Top NAICS codes 334516 Analytical Laboratory Instrument Manufacturing	$52,189	0.3%	Rank history: #88 in FY2021, #72 in FY2022, #72 in FY2024 and not on the FY2025 list; up 29 since FY2022.
44	Software Information Resource Corp Top NAICS codes 541519 Other Computer Related Services	$51,945	0.3%	Rank history: not on the FY2021 list, #43 in FY2022, #70 in FY2024 and not on the FY2025 list; down 1 since FY2022.
45	Partnership for Public Service Inc Top NAICS codes 611430 Professional and Management Development Training	$51,600	0.3%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2024 and not on the FY2025 list; new.
46	Reed Elsevier Inc. Through Lnrs Data Services Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$51,348	0.3%	Rank history: #25 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
47	Transpondr LLC Top NAICS codes 517911 Telecommunications Resellers	$50,854	0.3%	Rank history: #56 in FY2021, #48 in FY2022, #46 in FY2024 and not on the FY2025 list; up 1 since FY2022.
48	Golden Key Group LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$50,000	0.3%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and not on the FY2025 list; new.
49	Passur Aerospace, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$50,000	0.3%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #51 in FY2025; new.
50	Arrow Electronics, Inc. Through Immixtechnology Inc. Top NAICS codes 541519 Other Computer Related Services	$41,318	0.2%	Rank history: #32 in FY2021, #27 in FY2022, #45 in FY2024 and #41 in FY2025; down 23 since FY2022.
51	Ains, LLC Top NAICS codes 541519 Other Computer Related Services	$40,831	0.2%	Rank history: #34 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
52	Canto, Inc. Top NAICS codes 511210 Software Publishers	$39,950	0.2%	Rank history: #49 in FY2021, #42 in FY2022, #47 in FY2024 and #45 in FY2025; down 10 since FY2022.
53	Varex Imaging Corp Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$39,406	0.2%	Rank history: #15 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
54	Lyme Computer Systems, Inc. Top NAICS codes 541519 Other Computer Related Services	$38,551	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #46 in FY2025; new.
55	Metaflows Inc. Top NAICS codes 513210 Software Publishers	$30,602	0.2%	Rank history: #57 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
56	Made Smart Group B.V. Top NAICS codes 513210 Software Publishers	$30,390	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #43 in FY2025; new.
57	Sinclair Broadcast Group Inc. Through Politico, LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$28,875	0.2%	Rank history: #59 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
58	University of Wisconsin System	$27,216	0.1%	Rank history: #66 in FY2021, #52 in FY2022, #53 in FY2024 and not on the FY2025 list; down 6 since FY2022.
59	Bering Air, Inc. Top NAICS codes 481111 Scheduled Passenger Air Transportation	$26,375	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Mind Your Business Inc Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$25,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	Mechanical Simulation Corp Top NAICS codes 511210 Software Publishers	$25,000	0.1%	Rank history: #62 in FY2021, #53 in FY2022, #55 in FY2024 and #54 in FY2025; down 8 since FY2022.
62	National Academy of Sciences Top NAICS codes 611519 Other Technical and Trade Schools	$25,000	0.1%	Rank history: #63 in FY2021, #54 in FY2022, #56 in FY2024 and #57 in FY2025; down 8 since FY2022.
63	Deidiker Accounting & Consulting LLC Top NAICS codes 541211 Offices of Certified Public Accountants	$24,900	0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and not on the FY2025 list; new.
64	L3HARRIS Aviation Products Inc Through Acron Aviation, Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$24,136	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	Critical Mention, Inc. Top NAICS codes 519110 News Syndicates	$23,500	0.1%	Rank history: #68 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
66	Chester Fisher Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$23,303	0.1%	Rank history: #67 in FY2021, #68 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
67	Beta Sigma Holdings, Inc. Top NAICS codes 513210 Software Publishers	$22,497	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Executive Information Systems, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$21,330	0.1%	Rank history: #58 in FY2021, #59 in FY2022, #62 in FY2024 and #60 in FY2025; down 9 since FY2022.
69	Tactical Digital Corporation Top NAICS codes 611420 Computer Training	$20,600	0.1%	Rank history: #98 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
70	Karcher Group Incorporated Top NAICS codes 334310 Audio and Video Equipment Manufacturing	$20,473	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Proven Management LLC Top NAICS codes 541614 Process, Physical Distribution, and Logistics Consulting Services	$19,961	0.1%	Rank history: #64 in FY2021, not on the FY2022 list, #57 in FY2024 and #58 in FY2025; returned.
72	Bench Top Solutions LLC Top NAICS codes 333310 Commercial and Service Industry Machinery Manufacturing	$19,326	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	General Electric Company Through GE Aviation Systems LLC Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$18,046	0.1%	Rank history: #36 in FY2021, not on the FY2022 list, not on the FY2024 list and #64 in FY2025; returned.
74	Environmental Systems Research Institute, Inc. Top NAICS codes 511210 Software Publishers	$17,798	0.1%	Rank history: #39 in FY2021, #63 in FY2022, #64 in FY2024 and #63 in FY2025; down 11 since FY2022.
75	Govsmart, Inc. Top NAICS codes 541519 Other Computer Related Services	$16,159	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Leadership Connect, Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$15,550	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and #66 in FY2025; new.
77	Accessagility LLC Top NAICS codes 541519 Other Computer Related Services	$15,046	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Stuart B. Consultants Inc. Top NAICS codes 541930 Translation and Interpretation Services	$14,300	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #85 in FY2025; new.
79	Waygate Technologies USA LP Top NAICS codes 334517 Irradiation Apparatus Manufacturing	$14,040	0.1%	Rank history: #76 in FY2021, #89 in FY2022, #61 in FY2024 and #65 in FY2025; up 10 since FY2022.
80	Xerox Holdings Corp Through Xerox Corporation Top NAICS codes 333316 Photographic and Photocopying Equipment Manufacturing	$13,501	0.1%	Rank history: #70 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
81	Accusoft Corporation Top NAICS codes 541519 Other Computer Related Services	$13,325	0.1%	Rank history: #80 in FY2021, #69 in FY2022, #52 in FY2024 and not on the FY2025 list; down 12 since FY2022.
82	Kpaul Properties LLC Top NAICS codes 541519 Other Computer Related Services	$12,505	0.1%	Rank history: #69 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 63 since FY2022.
83	Axon Enterprise, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$12,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and #73 in FY2025; new.
84	Graebel Holdings Inc. Through Graebel Companies, Inc. Top NAICS codes 484210 Used Household and Office Goods Moving	$10,186	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	Pre-Employment Investigations Inc Top NAICS codes 561611 Investigation and Personal Background Check Services	$10,000	0.1%	Rank history: #74 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; down 49 since FY2022.
86	Hrworx, LLC Top NAICS codes 511210 Software Publishers	$8,686	<0.1%	Rank history: #47 in FY2021, #76 in FY2022, #73 in FY2024 and #75 in FY2025; down 10 since FY2022.
87	John Wiley & Sons Inc. Top NAICS codes 511210 Software Publishers	$7,630	<0.1%	Rank history: #94 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
88	Avtech Services, LLC Top NAICS codes 541614 Process, Physical Distribution, and Logistics Consulting Services	$7,620	<0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; new.
89	LRP Publications, Inc. Top NAICS codes 541519 Other Computer Related Services	$7,400	<0.1%	Rank history: #95 in FY2021, #80 in FY2022, #75 in FY2024 and #78 in FY2025; down 9 since FY2022.
90	Engineering Dynamics Company, LLC Top NAICS codes 511210 Software Publishers	$6,383	<0.1%	Rank history: #96 in FY2021, #82 in FY2022, #77 in FY2024 and #79 in FY2025; down 8 since FY2022.
91	EAP Consultants, LLC Top NAICS codes 561611 Investigation and Personal Background Check Services	$5,853	<0.1%	Rank history: #54 in FY2021, #47 in FY2022, #38 in FY2024 and #29 in FY2025; down 44 since FY2022.
92	Recovery Point Systems Inc. Top NAICS codes 561210 Facilities Support Services	$5,278	<0.1%	Rank history: #99 in FY2021, not on the FY2022 list, #85 in FY2024 and #84 in FY2025; returned.
93	City of East Palestine Top NAICS codes 922190 Other Justice, Public Order, and Safety Activities	$5,250	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Globafone Inc. Top NAICS codes 517410 Satellite Telecommunications	$4,873	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #84 in FY2024 and not on the FY2025 list; down 8 since FY2022.
95	3D Systems Corporation	$4,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Originlab Corporation Top NAICS codes 611420 Computer Training	$4,445	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Human Resources Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$4,404	<0.1%	Rank history: #90 in FY2021, not on the FY2022 list, #79 in FY2024 and not on the FY2025 list; returned.
98	Healthequity, Inc. Top NAICS codes 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds	$4,129	<0.1%	Rank history: #97 in FY2021, #81 in FY2022, #80 in FY2024 and #86 in FY2025; down 17 since FY2022.
99	Volume Graphics Inc.	$4,012	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Bankers Business Management Services, Inc. Top NAICS codes 492210 Local Messengers and Local Delivery	$4,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2024 and not on the FY2025 list; new.

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100 of 105 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 $18.4 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.

Quick answers

Who were the top 10 National Transportation Safety Board contractors in FY2023?

1. Deloitte LLP ($4.37M), 2. MCP Computer Products Inc. ($1.73M), 3. Science Applications International Corporation ($1.5M), 4. Insight Public Sector Inc. ($1.14M), 5. Nucorevision Inc. ($744K), 6. General Dynamics Corporation ($599K), 7. Potomac Creek Associates, L.L.C. ($491K), 8. Sectek, Inc. ($456K), 9. Inspire Events LLC ($432K), 10. Netsync Network Solutions, Inc. ($387K).

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