Top 100 International Development Finance Corporation Contractors, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Creoal Consulting LLC Top NAICS codes 541511 Custom Computer Programming Services	$5,953,258	13.9%	Rank history: #2 in FY2022, #1 in FY2023, #9 in FY2024 and #11 in FY2025; unchanged since FY2020.
2	Thomas Scientific LLC Through Unison Software Inc. Top NAICS codes 511210 Software Publishers	$3,345,000	7.8%	Rank history: #7 in FY2022, #22 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	Iron Vine Security LLC Top NAICS codes 541519 Other Computer Related Services 511199 All Other Publishers	$1,709,803	4.0%	Rank history: #6 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
4	Omni Innovation LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,659,341	3.9%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
5	Womble Bond Dickinson US LLP Top NAICS codes 541110 Offices of Lawyers	$1,361,304	3.2%	Rank history: #8 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2020.
6	Thundercat Technology, LLC Top NAICS codes 541519 Other Computer Related Services	$1,316,707	3.1%	Rank history: #15 in FY2022, #24 in FY2023, #82 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
7	Douron, Inc. Top NAICS codes 337214 Office Furniture (except Wood) Manufacturing	$1,260,311	2.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	Summit Consulting LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$989,847	2.3%	Rank history: not on the FY2022 list, #2 in FY2023, #1 in FY2024 and #18 in FY2025; up 3 since FY2020.
9	Carahsoft Technology Corp Top NAICS codes 334111 Electronic Computer Manufacturing 511210 Software Publishers	$948,626	2.2%	Rank history: #66 in FY2022, not on the FY2023 list, #91 in FY2024 and #53 in FY2025; down 5 since FY2020.
10	Morrison & Foerster LLP Top NAICS codes 541110 Offices of Lawyers	$900,000	2.1%	Rank history: #3 in FY2022, #7 in FY2023, #48 in FY2024 and #9 in FY2025; new, not ranked in FY2020.
11	Seventh Sense, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$896,470	2.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Dalberg Consulting US LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$759,624	1.8%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
13	Crossboundary LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$749,091	1.7%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
14	The PNC Financial Services Group, Inc. Through National Association PNC Bank Top NAICS codes 522390 Other Activities Related to Credit Intermediation	$724,766	1.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Guidehouse Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$717,665	1.7%	Rank history: #20 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
16	RER Solutions, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 522320 Financial Transactions Processing, Reserve, and Clearinghouse Activities	$715,200	1.7%	Rank history: #18 in FY2022, #30 in FY2023, #47 in FY2024 and #48 in FY2025; down 6 since FY2020.
17	Meketa Investment Group Inc. Top NAICS codes 523930 Investment Advice	$645,000	1.5%	Rank history: #22 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
18	Visionary Consulting Partners, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$580,000	1.4%	Rank history: #51 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
19	DLA Piper UK LLP Through DLA Piper LLP (Us) Top NAICS codes 541110 Offices of Lawyers	$550,365	1.3%	Rank history: not on the FY2022–FY2025 lists; down 16 since FY2020.
20	Iron Mountain Incorporated Through Iron Mountain Information Management LLC Top NAICS codes 493110 General Warehousing and Storage	$546,072	1.3%	Rank history: #12 in FY2022, #29 in FY2023, #41 in FY2024 and #44 in FY2025; up 92 since FY2020.
21	Environmental Solutions Er2M LLC Top NAICS codes 541620 Environmental Consulting Services	$511,981	1.2%	Rank history: not on the FY2022–FY2023 lists, #90 in FY2024 and #93 in FY2025; up 17 since FY2020.
22	Oracle Corporation Through Oracle America, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$503,423	1.2%	Rank history: #23 in FY2022, not on the FY2023 list, #33 in FY2024 and not on the FY2025 list; down 9 since FY2020.
23	RMA Associates LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$497,911	1.2%	Rank history: #9 in FY2022, #13 in FY2023, #18 in FY2024 and #27 in FY2025; new, not ranked in FY2020.
24	Clifford Chance Rogers & Wells LLP Through Clifford Chance US LLP Top NAICS codes 541110 Offices of Lawyers	$474,663	1.1%	Rank history: #17 in FY2022, #38 in FY2023, #76 in FY2024 and not on the FY2025 list; down 19 since FY2020.
25	GUO Bonnie Top NAICS codes 541618 Other Management Consulting Services 541611 Administrative Management and General Management Consulting Services	$460,935	1.1%	Rank history: #41 in FY2022, not on the FY2023 list, #55 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
26	All Native Synergies Company Top NAICS codes 541690 Other Scientific and Technical Consulting Services 541519 Other Computer Related Services	$453,472	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Sterling Computers Corporation Top NAICS codes 334111 Electronic Computer Manufacturing	$415,442	1.0%	Rank history: #86 in FY2022, #77 in FY2023, not on the FY2024 list and #96 in FY2025; up 7 since FY2020.
28	Development Infostructure LLC Top NAICS codes 541519 Other Computer Related Services	$409,801	1.0%	Rank history: #31 in FY2022, #44 in FY2023, #36 in FY2024 and #35 in FY2025; down 19 since FY2020.
29	Norton Rose Fulbright US LLP 2 awardees Top NAICS codes 541110 Offices of Lawyers	$408,839	1.0%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; up 18 since FY2020.
30	CDW Corporation Through CDW Government LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$407,554	1.0%	Rank history: #10 in FY2022, #17 in FY2023, #11 in FY2024 and not on the FY2025 list; down 12 since FY2020.
31	Cfocus Software Incorporated Top NAICS codes 541512 Computer Systems Design Services	$404,438	0.9%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
32	Montagu Partners LLC Top NAICS codes 541110 Offices of Lawyers	$384,652	0.9%	Rank history: #25 in FY2022, #23 in FY2023, #35 in FY2024 and #79 in FY2025; up 10 since FY2020.
33	En-Net Services, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$350,413	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	T-Mobile US Inc. Through T-Mobile Usa, Inc. Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$348,574	0.8%	Rank history: #33 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
35	At&T Inc. 3 awardees, including At&T Enterprises, LLC and Directv, LLC Top NAICS codes 517110 Wired Telecommunications Carriers 515210 Cable and Other Subscription Programming	$320,640	0.7%	Rank history: #34 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
36	Kpmg L.L.P. Top NAICS codes 541211 Offices of Certified Public Accountants	$319,814	0.7%	Rank history: #39 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
37	Sage Communications, LLC Top NAICS codes 541820 Public Relations Agencies 541810 Advertising Agencies	$292,085	0.7%	Rank history: #40 in FY2022, #45 in FY2023, #66 in FY2024 and #100 in FY2025; up 34 since FY2020.
38	Global Solutions Group, Inc. Top NAICS codes 561320 Temporary Help Services	$285,754	0.7%	Rank history: #19 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; new, not ranked in FY2020.
39	Brown Point Facility Management Solutions, LLC Top NAICS codes 561210 Facilities Support Services	$256,830	0.6%	Rank history: #38 in FY2022, #95 in FY2023, #88 in FY2024 and #82 in FY2025; new, not ranked in FY2020.
40	Moody'S Corporation Through Moody's Analytics, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$253,550	0.6%	Rank history: #11 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
41	Trinity International (Us) PLLC Top NAICS codes 541110 Offices of Lawyers	$249,250	0.6%	Rank history: #37 in FY2022, #42 in FY2023, not on the FY2024 list and #80 in FY2025; new, not ranked in FY2020.
42	Dana Starkey Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$243,322	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$238,128	0.6%	Rank history: not on the FY2022 list, #54 in FY2023, not on the FY2024 list and #54 in FY2025; down 26 since FY2020.
44	Reed Elsevier Inc. Through Relx Inc. Top NAICS codes 519190 All Other Information Services	$225,240	0.5%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
45	Violet Alfred Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$220,326	0.5%	Rank history: not on the FY2022 list, #73 in FY2023, #80 in FY2024 and #74 in FY2025; new, not ranked in FY2020.
46	Rivera-Zeballos Sergio Top NAICS codes 561499 All Other Business Support Services	$216,456	0.5%	Rank history: #45 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
47	At&T Enterprises, LLC Top NAICS codes 517110 Wired Telecommunications Carriers	$209,250	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Farah D Petit Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$206,837	0.5%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
49	The Hearst Corporation Through Fitch Solutions, Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$190,118	0.4%	Rank history: #71 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
50	Bloomberg LP Through Bloomberg Finance LP Top NAICS codes 519190 All Other Information Services	$189,425	0.4%	Rank history: #43 in FY2022, #48 in FY2023, not on the FY2024 list and #69 in FY2025; down 10 since FY2020.
51	Westwind Computer Products, Inc. Top NAICS codes 541519 Other Computer Related Services	$181,721	0.4%	Rank history: #29 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; down 45 since FY2020.
52	Alaska Native Government Services LLC Through Copper River Information Technology, LLC Top NAICS codes 541519 Other Computer Related Services	$170,073	0.4%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
53	Euromoney Institutional Investor PLC 2 awardees, including Internet Securities LLC and Euromoney Trading Limited Top NAICS codes 519190 All Other Information Services	$169,556	0.4%	Rank history: #74 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
54	Geremy R Birchard Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$169,300	0.4%	Rank history: #61 in FY2022, #71 in FY2023, #71 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
55	Emerging Sun LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$168,155	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Library Associates, Inc. Through Library Associates of Maryland, LLC	$167,226	0.4%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
57	Jeremy Harr Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$165,574	0.4%	Rank history: #62 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
58	Windsor Group LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$162,937	0.4%	Rank history: #13 in FY2022, #14 in FY2023, #19 in FY2024 and #24 in FY2025; down 33 since FY2020.
59	Gerald Levine Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$158,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Anyan Iola A Top NAICS codes 238990 All Other Specialty Trade Contractors	$157,073	0.4%	Rank history: #65 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
61	Abaid Chaudhry Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$156,308	0.4%	Rank history: #67 in FY2022, #80 in FY2023, #77 in FY2024 and #72 in FY2025; new, not ranked in FY2020.
62	Software Information Resource Corp. Top NAICS codes 541519 Other Computer Related Services	$155,062	0.4%	Rank history: #49 in FY2022, not on the FY2023 list, #44 in FY2024 and #46 in FY2025; up 10 since FY2020.
63	U.s. Bancorp Through U.s. Bank National Association Top NAICS codes 522110 Commercial Banking	$150,000	0.3%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
64	Biro Conde Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$143,758	0.3%	Rank history: #68 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
65	Megan Autrey Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$134,492	0.3%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
66	Govsmart, Inc. Top NAICS codes 541519 Other Computer Related Services	$127,480	0.3%	Rank history: #26 in FY2022, #32 in FY2023, #6 in FY2024 and #8 in FY2025; new, not ranked in FY2020.
67	Aksia Torreycove Partners LLC Top NAICS codes 523930 Investment Advice	$120,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	James Stropkay Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$119,524	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Lifecare, Inc. Top NAICS codes 624190 Other Individual and Family Services 624410 Child Care Services	$117,630	0.3%	Rank history: #83 in FY2022, #56 in FY2023, #39 in FY2024 and #29 in FY2025; down 7 since FY2020.
70	Christopher Cochran Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$117,516	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Olivia Thompson Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$117,174	0.3%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
72	Andrew D Hassan Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$114,577	0.3%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
73	Metgreen Solutions Inc. Top NAICS codes 541519 Other Computer Related Services	$114,521	0.3%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
74	Colossal Contracting LLC Top NAICS codes 541519 Other Computer Related Services	$112,543	0.3%	Rank history: #84 in FY2022, not on the FY2023 list, #60 in FY2024 and #58 in FY2025; down 25 since FY2020.
75	Mcgraw Hill Financial Inc. Through S&P Global Market Intelligence LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$111,000	0.3%	Rank history: #58 in FY2022, #76 in FY2023 and not on the FY2024–FY2025 lists; down 25 since FY2020.
76	Regan Technologies Corp Top NAICS codes 541519 Other Computer Related Services	$107,666	0.3%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
77	International SOS Government Services Inc. Top NAICS codes 624230 Emergency and Other Relief Services	$103,697	0.2%	Rank history: #75 in FY2022, #93 in FY2023, #98 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
78	Omni Business Systems, Inc. Top NAICS codes 532420 Office Machinery and Equipment Rental and Leasing	$99,972	0.2%	Rank history: #76 in FY2022, #69 in FY2023, #78 in FY2024 and not on the FY2025 list; down 18 since FY2020.
79	Computerware Inc. Top NAICS codes 811212 Computer and Office Machine Repair and Maintenance	$96,000	0.2%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; down 22 since FY2020.
80	Mayer Brown LLP Top NAICS codes 541110 Offices of Lawyers	$92,982	0.2%	Rank history: #70 in FY2022, #15 in FY2023, #15 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
81	Advanced Computer Concepts, Inc. Top NAICS codes 541519 Other Computer Related Services	$85,745	0.2%	Rank history: not on the FY2022–FY2023 lists, #25 in FY2024 and #25 in FY2025; up 19 since FY2020.
82	Frontier Technologies Inc. Top NAICS codes 541519 Other Computer Related Services	$76,022	0.2%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
83	Zukerman Gore Brandeis & Crossman, LLP Top NAICS codes 541110 Offices of Lawyers	$75,000	0.2%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; down 39 since FY2020.
84	Korn / Ferry International Through Sensa Solutions, Inc. Top NAICS codes 541612 Human Resources Consulting Services	$74,973	0.2%	Rank history: #55 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
85	Nixon Peabody, LLP Top NAICS codes 541110 Offices of Lawyers	$70,300	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Arrow Electronics, Inc. Through EC America, Inc. Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$69,304	0.2%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
87	Integrated Security Technologies, Inc. Top NAICS codes 315999 Other Apparel Accessories and Other Apparel Manufacturing	$64,643	0.2%	Rank history: not on the FY2022–FY2024 lists and #92 in FY2025; down 13 since FY2020.
88	Nitea DOO Beograd Top NAICS codes 337211 Wood Office Furniture Manufacturing	$64,385	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Ains, LLC Top NAICS codes 541519 Other Computer Related Services	$63,820	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Morningstar Inc. Through Pitchbook Data Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$60,000	0.1%	Rank history: #95 in FY2022, #79 in FY2023, #64 in FY2024 and #65 in FY2025; down 23 since FY2020.
91	DLA Piper LLP (Us) Top NAICS codes 541110 Offices of Lawyers	$60,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	The Financial Times Ltd Top NAICS codes 511110 Newspaper Publishers	$56,596	0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; down 26 since FY2020.
93	Oil Price Information Service LLC Through IHS Global Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$56,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Prenax Inc. Top NAICS codes 511120 Periodical Publishers	$55,129	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Fedex Corp Through Federal Express Corporation Top NAICS codes 492110 Couriers and Express Delivery Services	$50,000	0.1%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
96	The Ijaz Group LLC Top NAICS codes 541211 Offices of Certified Public Accountants	$50,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
97	J K Moving & Storage, Inc. Top NAICS codes 337214 Office Furniture (except Wood) Manufacturing	$47,883	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Integration Technologies Group, Inc. Top NAICS codes 541519 Other Computer Related Services	$46,042	0.1%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
99	Factiva Inc. 2 awardees, including Dow Jones & Company, Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals 511110 Newspaper Publishers	$43,237	0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
100	Fiscalnote, Inc. Through Cq-Roll Call, Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$41,818	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $42.9 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