Top 100 Social Security Administration Contractors, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top NAICS codes 541519 Other Computer Related Services 561621 Security Systems Services (except Locksmiths)	$316,192,661	15.4%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Verizon Communications Inc. 2 awardees, including Verizon Business Network Services LLC and Cellco Partnership Top NAICS codes 517110 Wired Telecommunications Carriers 517919 All Other Telecommunications 517312 Wireless Telecommunications Carriers (except Satellite)	$121,538,785	5.9%	Rank history: #10 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
3	Dell Federal Systems L.P. 2 awardees, including Dell Marketing L.P. Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$116,678,637	5.7%	Rank history: #3 in FY2021, #3 in FY2022, #8 in FY2024 and not on the FY2025 list; unchanged since FY2022.
4	It Concepts, Inc. Top NAICS codes 541512 Computer Systems Design Services	$96,361,824	4.7%	Rank history: #43 in FY2021, #4 in FY2022, #2 in FY2024 and #74 in FY2025; unchanged since FY2022.
5	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$85,097,121	4.1%	Rank history: #6 in FY2021, #7 in FY2022, #4 in FY2024 and #3 in FY2025; up 2 since FY2022.
6	Colossal Contracting LLC Top NAICS codes 334210 Telephone Apparatus Manufacturing 541519 Other Computer Related Services	$70,492,581	3.4%	Rank history: not on the FY2021 list, #6 in FY2022, #6 in FY2024 and #8 in FY2025; unchanged since FY2022.
7	International Business Machines Corporation Top NAICS codes 541511 Custom Computer Programming Services 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$68,698,087	3.3%	Rank history: #4 in FY2021, #2 in FY2022, #3 in FY2024 and #2 in FY2025; down 5 since FY2022.
8	Lumen Technologies, Inc. Through Lumen Technologies Government Solutions, Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$63,426,273	3.1%	Rank history: #11 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
9	CA Inc. 2 awardees Top NAICS codes 511210 Software Publishers 541511 Custom Computer Programming Services	$59,434,742	2.9%	Rank history: #8 in FY2021, #9 in FY2022, #18 in FY2024 and not on the FY2025 list; unchanged since FY2022.
10	Avaya Federal Solutions Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$49,558,258	2.4%	Rank history: #13 in FY2021, #8 in FY2022, #12 in FY2024 and #15 in FY2025; down 2 since FY2022.
11	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$45,519,128	2.2%	Rank history: #15 in FY2021, #15 in FY2022, #5 in FY2024 and #4 in FY2025; up 4 since FY2022.
12	Compuware Corporation Through BMC Software, Inc. Top NAICS codes 443120 Computer and Software Stores 511210 Software Publishers	$39,624,325	1.9%	Rank history: #16 in FY2021, #10 in FY2022, #15 in FY2024 and not on the FY2025 list; down 2 since FY2022.
13	Deloitte LLP 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$37,056,044	1.8%	Rank history: #17 in FY2021, #12 in FY2022, #9 in FY2024 and #14 in FY2025; down 1 since FY2022.
14	Manhattan Telecommunications Corporation LLC Top NAICS codes 517110 Wired Telecommunications Carriers	$33,625,261	1.6%	Rank history: #20 in FY2021, #13 in FY2022, #13 in FY2024 and #24 in FY2025; down 1 since FY2022.
15	York Telecom Corporation Through Kinly US Corporation Top NAICS codes 517911 Telecommunications Resellers 541810 Advertising Agencies	$32,325,613	1.6%	Rank history: #19 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
16	HP Enterprise Services LLC Through Peraton Inc. Top NAICS codes 541519 Other Computer Related Services	$27,852,554	1.4%	Rank history: not on the FY2021 list, #20 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
17	Securityhunter, Inc. Top NAICS codes 541330 Engineering Services 561621 Security Systems Services (except Locksmiths)	$27,710,040	1.3%	Rank history: #22 in FY2021, #17 in FY2022, #24 in FY2024 and #7 in FY2025; unchanged since FY2022.
18	Koniag, Inc. 2 awardees, including Tuknik Government Services LLC Top NAICS codes 541519 Other Computer Related Services	$26,449,133	1.3%	Rank history: #18 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
19	Crosby Marketing Communications Inc. Top NAICS codes 541810 Advertising Agencies	$19,135,889	0.9%	Rank history: #14 in FY2021, #11 in FY2022, #20 in FY2024 and #80 in FY2025; down 8 since FY2022.
20	Arrow Electronics, Inc. 2 awardees, including Immixtechnology Inc. and EC America, Inc. Top NAICS codes 541519 Other Computer Related Services 443120 Computer and Software Stores	$18,106,325	0.9%	Rank history: #21 in FY2021, #19 in FY2022, #14 in FY2024 and #18 in FY2025; down 1 since FY2022.
21	Pitney Bowes Inc. Top NAICS codes 561499 All Other Business Support Services 532420 Office Machinery and Equipment Rental and Leasing	$17,356,325	0.8%	Rank history: #72 in FY2021, #77 in FY2022, #75 in FY2024 and #75 in FY2025; up 56 since FY2022.
22	Cognosante Holdings, LLC Through Cognosante, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$15,722,144	0.8%	Rank history: #40 in FY2021, #22 in FY2022, #26 in FY2024 and not on the FY2025 list; unchanged since FY2022.
23	Equifax Inc. 2 awardees, including Equifax Workforce Solutions LLC Top NAICS codes 561611 Investigation and Personal Background Check Services 561450 Credit Bureaus	$15,221,892	0.7%	Rank history: #7 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
24	Accenture Inc. Through Accenture Federal Services LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 511210 Software Publishers 541512 Computer Systems Design Services	$14,791,235	0.7%	Rank history: not on the FY2021 list, #34 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
25	Executive Information Systems, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$13,741,106	0.7%	Rank history: #28 in FY2021, #25 in FY2022, #32 in FY2024 and #28 in FY2025; unchanged since FY2022.
26	Relx Inc 3 awardees, including Accuity Asset Verification Services Inc. and Lexisnexis Special Services Inc. Top NAICS codes 541519 Other Computer Related Services 519190 All Other Information Services 561450 Credit Bureaus	$13,310,935	0.6%	Rank history: not on the FY2021 list, #41 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
27	NCS Technologies Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$12,459,938	0.6%	Rank history: #34 in FY2021, #73 in FY2022, #44 in FY2024 and not on the FY2025 list; up 46 since FY2022.
28	United Language Group, Inc. Through Language Select, LLC Top NAICS codes 541930 Translation and Interpretation Services	$12,178,911	0.6%	Rank history: #23 in FY2021, #26 in FY2022, #35 in FY2024 and #23 in FY2025; down 2 since FY2022.
29	Reliasource, Inc. Top NAICS codes 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing	$11,378,295	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 106 since FY2022.
30	Smithgroup Companies, Inc. Through Smithgroup, Inc. Top NAICS codes 541310 Architectural Services	$10,782,879	0.5%	Rank history: #29 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
31	C2 Alaska, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 621112 Offices of Physicians, Mental Health Specialists	$10,285,017	0.5%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and #32 in FY2025; new.
32	Mythics, LLC Through Emergent, LLC Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$9,348,264	0.5%	Rank history: #24 in FY2021, #21 in FY2022, #30 in FY2024 and #27 in FY2025; down 11 since FY2022.
33	United Parcel Service Inc. Top NAICS codes 492110 Couriers and Express Delivery Services	$9,340,623	0.5%	Rank history: #32 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
34	Microsoft Corporation Top NAICS codes 541512 Computer Systems Design Services	$9,307,217	0.5%	Rank history: #75 in FY2021, #38 in FY2022, #34 in FY2024 and #26 in FY2025; up 4 since FY2022.
35	Four LLC Top NAICS codes 541519 Other Computer Related Services 511210 Software Publishers	$9,117,659	0.4%	Rank history: #41 in FY2021, #33 in FY2022, #43 in FY2024 and #29 in FY2025; down 2 since FY2022.
36	Conduent Federal Solutions LLC Top NAICS codes 561499 All Other Business Support Services	$9,040,929	0.4%	Rank history: #35 in FY2021, #37 in FY2022, #40 in FY2024 and not on the FY2025 list; up 1 since FY2022.
37	V3Gate, LLC Top NAICS codes 541519 Other Computer Related Services	$8,153,770	0.4%	Rank history: #65 in FY2021, #35 in FY2022, #22 in FY2024 and #33 in FY2025; down 2 since FY2022.
38	Mathematica Inc 2 awardees Top NAICS codes 541211 Offices of Certified Public Accountants 541611 Administrative Management and General Management Consulting Services	$8,029,386	0.4%	Rank history: #33 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
39	Benchmark Construction Services Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$7,521,796	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 344 since FY2022.
40	Yukon Fire Protection Services, Inc. Top NAICS codes 561210 Facilities Support Services 238220 Plumbing, Heating, and Air-Conditioning Contractors	$7,287,078	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 132 since FY2022.
41	Huang-Gaghan Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction	$7,064,409	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Mednick Associates, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$7,036,760	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2024 and #56 in FY2025; up 95 since FY2022.
43	American Relocation Connections LLC Top NAICS codes 484210 Used Household and Office Goods Moving	$6,902,738	0.3%	Rank history: #54 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
44	Stratcomm Inc Top NAICS codes 561492 Court Reporting and Stenotype Services 611710 Educational Support Services	$6,519,091	0.3%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2024 and #21 in FY2025; up 256 since FY2022.
45	Ahtna Infrastructure & Technologies LLC Top NAICS codes 519210 Libraries and Archives	$6,447,474	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and #35 in FY2025; new.
46	Ernst & Young LLP Top NAICS codes 541211 Offices of Certified Public Accountants	$6,442,549	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and not on the FY2025 list; new.
47	Insight Public Sector Inc. 2 awardees Top NAICS codes 334112 Computer Storage Device Manufacturing 541519 Other Computer Related Services	$6,283,067	0.3%	Rank history: #44 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
48	Creoal Consulting LLC Top NAICS codes 541511 Custom Computer Programming Services	$5,992,754	0.3%	Rank history: #68 in FY2021, #63 in FY2022, #45 in FY2024 and #59 in FY2025; up 15 since FY2022.
49	Deloitte Consulting LLP Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$5,938,784	0.3%	Rank history: not on the FY2021 list, #27 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
50	Tmax Government Solutions LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$5,290,512	0.3%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2024 and not on the FY2025 list; new.
51	National Academy of Sciences Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities	$5,281,767	0.3%	Rank history: #77 in FY2021, #71 in FY2022, #77 in FY2024 and #55 in FY2025; up 20 since FY2022.
52	Fedcap Rehabilitation Services, Inc. Top NAICS codes 561720 Janitorial Services	$5,265,197	0.3%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and #42 in FY2025; new.
53	Experian PLC Through Experian Information Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$5,220,891	0.3%	Rank history: #85 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
54	Virginia Commonwealth University Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$5,200,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	Lifebridge Health, Inc. Top NAICS codes 561720 Janitorial Services	$5,124,191	0.2%	Rank history: #55 in FY2021, #51 in FY2022, #51 in FY2024 and #43 in FY2025; down 4 since FY2022.
56	Swish Data Corporation Top NAICS codes 541519 Other Computer Related Services	$5,098,211	0.2%	Rank history: #71 in FY2021, #56 in FY2022, #52 in FY2024 and #68 in FY2025; unchanged since FY2022.
57	Standard-Blazar, LLC Top NAICS codes 541519 Other Computer Related Services	$5,007,375	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, #96 in FY2024 and #87 in FY2025; up 21 since FY2022.
58	Edac Systems Inc. Top NAICS codes 334111 Electronic Computer Manufacturing 511210 Software Publishers	$4,773,906	0.2%	Rank history: #90 in FY2021, #93 in FY2022, not on the FY2024 list and #100 in FY2025; up 35 since FY2022.
59	Fedresults, Inc. Top NAICS codes 511210 Software Publishers	$4,705,800	0.2%	Rank history: #52 in FY2021, #47 in FY2022, #55 in FY2024 and not on the FY2025 list; down 12 since FY2022.
60	Hammer LGC Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$4,541,287	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	Countertrade Products, Inc. Top NAICS codes 541519 Other Computer Related Services	$4,324,720	0.2%	Rank history: #94 in FY2021, #64 in FY2022, #37 in FY2024 and #30 in FY2025; up 3 since FY2022.
62	Thomson Reuters (Tax & Accounting) Inc. Through West Publishing Corporation Top NAICS codes 519190 All Other Information Services	$4,232,012	0.2%	Rank history: not on the FY2021 list, #53 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
63	The Lioce Group Inc. Top NAICS codes 334111 Electronic Computer Manufacturing 333293 Printing Machinery and Equipment Manufacturing	$4,200,418	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #88 in FY2024 and #84 in FY2025; up 24 since FY2022.
64	National Association for Public Health Statistics and Information Systems, Inc. Top NAICS codes 541519 Other Computer Related Services 813920 Professional Organizations 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$4,094,557	0.2%	Rank history: #61 in FY2021, #54 in FY2022, #54 in FY2024 and #48 in FY2025; down 10 since FY2022.
65	KMK Construction, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,759,308	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	The Clearing, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$3,749,912	0.2%	Rank history: not on the FY2021 list, #66 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
67	Fis-Das Interpreting Services Top NAICS codes 541930 Translation and Interpretation Services	$3,732,520	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #38 in FY2025; up 90 since FY2022.
68	Business Support Services of Salem, Inc. Top NAICS codes 561492 Court Reporting and Stenotype Services	$3,715,322	0.2%	Rank history: not on the FY2021 list, #59 in FY2022, #68 in FY2024 and #65 in FY2025; down 9 since FY2022.
69	Aware Inc. Top NAICS codes 811212 Computer and Office Machine Repair and Maintenance	$3,531,859	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 364 since FY2022.
70	Coreonyx Government Solutions LLC Top NAICS codes 541519 Other Computer Related Services	$3,512,922	0.2%	Rank history: #74 in FY2021, #57 in FY2022, #66 in FY2024 and #57 in FY2025; down 13 since FY2022.
71	Kearney & Company, P.C. Top NAICS codes 541211 Offices of Certified Public Accountants	$3,440,297	0.2%	Rank history: #47 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; down 28 since FY2022.
72	Bancroft Valiant Joint Venture LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,275,682	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Tyto Athene, LLC Top NAICS codes 517110 Wired Telecommunications Carriers	$3,267,784	0.2%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and #70 in FY2025; new.
74	Gonzales Consulting Services Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$3,175,277	0.2%	Rank history: #63 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
75	RLS Construction Group, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,126,780	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Dynatrace LLC Top NAICS codes 511210 Software Publishers	$3,088,149	0.1%	Rank history: #87 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
77	State of California Controllers Office 2 awardees, including California Department of Public Health Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$2,944,417	0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #94 in FY2024 and not on the FY2025 list; down 5 since FY2022.
78	Fedtec LLC Top NAICS codes 541512 Computer Systems Design Services	$2,720,640	0.1%	Rank history: not on the FY2021 list, #55 in FY2022, #76 in FY2024 and not on the FY2025 list; down 23 since FY2022.
79	Red River Technology LLC 2 awardees, including Distributed Technology Group LLC Top NAICS codes 541519 Other Computer Related Services	$2,676,291	0.1%	Rank history: #5 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 88 since FY2022.
80	Johnson Controls Industries Through Johnson Controls, Inc. Top NAICS codes 334290 Other Communications Equipment Manufacturing 561210 Facilities Support Services 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$2,498,107	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	At&T Inc. 2 awardees, including Att Mobility LLC and At&T Enterprises, LLC Top NAICS codes 517312 Wireless Telecommunications Carriers (except Satellite) 541519 Other Computer Related Services 334290 Other Communications Equipment Manufacturing	$2,474,134	0.1%	Rank history: #50 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; down 31 since FY2022.
82	State Health Services Texas Department of Through Department of State Health Services Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 519290 Web Search Portals and All Other Information Services	$2,469,846	0.1%	Rank history: #76 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
83	3Links Technologies, Inc. Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$2,406,063	0.1%	Rank history: #79 in FY2021, #80 in FY2022, #84 in FY2024 and not on the FY2025 list; down 3 since FY2022.
84	ICF International, Inc. Through ICF Incorporated, L.L.C. Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$2,308,307	0.1%	Rank history: #36 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
85	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$2,306,886	0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #51 in FY2025; up 68 since FY2022.
86	Advancia Ahtna JV, LLC Top NAICS codes 519120 Libraries and Archives	$2,271,906	0.1%	Rank history: #31 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
87	Graybar Electric Company, Inc. Top NAICS codes 334290 Other Communications Equipment Manufacturing	$2,264,573	0.1%	Rank history: #82 in FY2021, #96 in FY2022, #82 in FY2024 and #72 in FY2025; up 9 since FY2022.
88	DLT Solutions LLC Top NAICS codes 541519 Other Computer Related Services	$2,221,153	0.1%	Rank history: #70 in FY2021, #89 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
89	August Schell Enterprises, Inc. Top NAICS codes 541519 Other Computer Related Services	$2,173,307	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2024 and #62 in FY2025; new.
90	Turner Construction Company Top NAICS codes 236220 Commercial and Institutional Building Construction	$2,160,065	0.1%	Rank history: #12 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 46 since FY2022.
91	Dynamic Systems Inc. Top NAICS codes 541519 Other Computer Related Services	$2,123,684	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 23 since FY2022.
92	Healthcare Resource Network LLC Top NAICS codes 561320 Temporary Help Services	$2,119,893	0.1%	Rank history: #37 in FY2021, #49 in FY2022, #63 in FY2024 and not on the FY2025 list; down 43 since FY2022.
93	WGL Energy Services Inc. Top NAICS codes 221122 Electric Power Distribution	$2,090,596	0.1%	Rank history: #39 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; down 35 since FY2022.
94	Gartner, Inc. Top NAICS codes 541519 Other Computer Related Services 519190 All Other Information Services	$2,051,377	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #89 in FY2024 and not on the FY2025 list; up 3 since FY2022.
95	Schreiber Translations, Inc. Top NAICS codes 541930 Translation and Interpretation Services	$2,015,288	0.1%	Rank history: #84 in FY2021, #98 in FY2022, #93 in FY2024 and #73 in FY2025; up 3 since FY2022.
96	The Johns Hopkins University Through The Johns Hopkins University Applied Physics Laboratory LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$1,998,973	0.1%	Rank history: #42 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
97	Apsi Construction Management Top NAICS codes 541330 Engineering Services	$1,910,527	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2024 and #90 in FY2025; new.
98	Summer Consultants Inc Top NAICS codes 541330 Engineering Services	$1,896,595	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	Coalfire Systems, Inc. Through Veris Group, LLC Top NAICS codes 541519 Other Computer Related Services	$1,841,325	0.1%	Rank history: not on the FY2021 list, #86 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
100	Archive Data Solutions, LLC Top NAICS codes 334112 Computer Storage Device Manufacturing	$1,811,200	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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 $2.06 billion 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