Top 100 Contractors in PSC R6: Administrative Support Services, FY2021

Name: Top 100 Contractors in PSC R6: Administrative Support Services, FY2021
Creator: GovTribe

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

The top 10 won 52% of FY2021 PSC R6 contract dollars

Contract obligations: $6,727,638,330 Net of deobligations, by contracts coded PSC R6 or a code under it
Contractors: 3,566 Parent companies with an obligation
Largest contractor: Mckesson Corporation $1.49 billion, 20.5% 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	Mckesson Corporation Through Mckesson Specialty Distribution LLC Top agencies HHS (Department of Health and Human Services)	$1,494,718,093	20.5%	Rank history: #2 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
2	Ministry of Defense Top agencies Navy (Department of the Navy)	$1,130,173,545	15.5%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; new, not ranked in FY2020.
3	Fedex Corp 9 awardees, including Fedex Supply Chain Distribution System, Inc., Federal Express Corporation and Fedex Freight East, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USDA (Department of Agriculture)	$269,032,519	3.7%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since FY2020.
4	CACI International Inc. 6 awardees, including Caci Premier Technology, LLC, Caci, LLC - Commercial and Caci, Inc. - Federal Top agencies DCSA (Defense Counterintelligence and Security Agency) DOJ (Department of Justice) DHS (Department of Homeland Security)	$252,135,558	3.5%	Rank history: #6 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; down 1 since FY2020.
5	Perspecta Inc. 2 awardees, including Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$175,326,640	2.4%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
6	PAE Government Services Inc. 5 awardees, including Macfadden & Associates, Inc. and FCI Federal, LLC Top agencies USAID (US Agency for International Development) DHS (Department of Homeland Security) SEC (Securities and Exchange Commission)	$127,883,787	1.8%	Rank history: #5 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
7	Brillient Corporation Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) SBA (Small Business Administration)	$106,893,804	1.5%	Rank history: #51 in FY2022, #9 in FY2023, #11 in FY2024 and #9 in FY2025; down 2 since FY2020.
8	Securitas AB 2 awardees, including Securitas Critical Infrastructure Services, Inc. and Paragon Systems Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$98,514,412	1.3%	Rank history: #8 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
9	Carahsoft Technology Corp Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration)	$64,761,345	0.9%	Rank history: #10 in FY2022, #5 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
10	General Dynamics Corporation 8 awardees, including General Dynamics Information Technology, Inc., General Dynamics Land Systems Inc. and Celerity Government Solutions LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) DHS (Department of Homeland Security)	$62,081,332	0.8%	Rank history: #16 in FY2022, #13 in FY2023, #13 in FY2024 and #45 in FY2025; up 3 since FY2020.
11	Science Applications International Corporation 3 awardees, including Forfeiture Support Associates LLC and Halfaker and Associates, LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) Navy (Department of the Navy)	$60,462,077	0.8%	Rank history: #19 in FY2022, #22 in FY2023, #15 in FY2024 and not on the FY2025 list; unchanged since FY2020.
12	Sciolex Corporation Top agencies DHS (Department of Homeland Security)	$57,983,446	0.8%	Rank history: #12 in FY2022, #31 in FY2023, #39 in FY2024 and #31 in FY2025; unchanged since FY2020.
13	Teamstaff Inc. 3 awardees, including DLH Solutions Inc., Irving Burton Associates, LLC and Social & Scientific Systems, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$52,502,763	0.7%	Rank history: #13 in FY2022, #11 in FY2023, #6 in FY2024 and #5 in FY2025; up 22 since FY2020.
14	Metropolitan Interpreters & Translators, Inc. 2 awardees Top agencies DOJ (Department of Justice)	$50,701,765	0.7%	Rank history: #14 in FY2022, #49 in FY2023, #83 in FY2024 and not on the FY2025 list; up 5 since FY2020.
15	Nana Regional Corporation Inc 8 awardees, including Rivertech LLC, Cloud Lake Technology LLC and Tuvli LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) DOS (Department of State)	$50,458,540	0.7%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
16	Servicesource Inc. 2 awardees Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$41,451,191	0.6%	Rank history: #18 in FY2022, #16 in FY2023, #16 in FY2024 and #17 in FY2025; up 1 since FY2020.
17	ITC Federal, LLC Top agencies DHS (Department of Homeland Security)	$38,793,166	0.5%	Rank history: #21 in FY2022, #6 in FY2023, #9 in FY2024 and #20 in FY2025; up 5 since FY2020.
18	Cherokee Nation 6 awardees, including Cherokee Nation Strategic Programs, L.L.C., Cherokee Federal Solutions, L.L.C. and Cherokee Nation Management & Consulting, L.l.c.. Top agencies DOS (Department of State) DOJ (Department of Justice) DOE (Department of Energy)	$37,240,654	0.5%	Rank history: #34 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
19	Axient LLC Top agencies NASA (National Aeronautics and Space Administration)	$31,169,957	0.4%	Rank history: #25 in FY2022, #27 in FY2023, #37 in FY2024 and #39 in FY2025; up 8 since FY2020.
20	Lockheed Martin Corporation 3 awardees, including Lockheed Martin Integrated Systems, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$28,693,821	0.4%	Rank history: #31 in FY2022, #46 in FY2023, #59 in FY2024 and #33 in FY2025; up 25 since FY2020.
21	Westat, Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$28,399,534	0.4%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
22	Goodwill Industries of San Antonio Contract Services Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$28,307,895	0.4%	Rank history: #29 in FY2022, #61 in FY2023, #68 in FY2024 and #54 in FY2025; up 2 since FY2020.
23	United Parcel Service Inc. 5 awardees Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) USDA (Department of Agriculture)	$27,996,059	0.4%	Rank history: #22 in FY2022, #12 in FY2023, #14 in FY2024 and #13 in FY2025; up 45 since FY2020.
24	Trade Center Management Associates L.L.C. Top agencies GSA (General Services Administration)	$26,541,307	0.4%	Rank history: #33 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
25	Deloitte LLP 3 awardees, including Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP and Deloitte & Touche LLP Top agencies ED (Department of Education) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$23,724,805	0.3%	Rank history: #32 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
26	Koniag, Inc. 3 awardees, including Arlluk Technology Solutions LLC, Koniag Brillient, LLC and Eagle Harbor Solutions LLC Top agencies DHS (Department of Homeland Security) DHA (Defense Health Agency) USDA (Department of Agriculture)	$23,000,095	0.3%	Rank history: #41 in FY2022, #28 in FY2023, #38 in FY2024 and not on the FY2025 list; up 362 since FY2020.
27	HP Enterprise Services LLC 2 awardees, including Peraton Risk Decision Inc. Top agencies DHS (Department of Homeland Security)	$22,233,830	0.3%	Rank history: #4 in FY2022, #3 in FY2023, #7 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
28	Verato, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DOJ (Department of Justice) AOUSC (Administrative Office of the U.S. Courts)	$21,850,056	0.3%	Rank history: #42 in FY2022, #41 in FY2023, #69 in FY2024 and not on the FY2025 list; up 14 since FY2020.
29	Case Healthcare Solutions, Inc. Top agencies Army (Department of the Army)	$20,500,679	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
30	Pgls LLC Top agencies DOJ (Department of Justice) DHA (Defense Health Agency) Navy (Department of the Navy)	$19,980,378	0.3%	Rank history: #23 in FY2022, #23 in FY2023, #22 in FY2024 and #34 in FY2025; new, not ranked in FY2020.
31	Dtsv Inc. Top agencies Commerce (Department of Commerce)	$19,564,565	0.3%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
32	D7, LLC Top agencies DHA (Defense Health Agency)	$19,352,110	0.3%	Rank history: #43 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
33	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$16,686,139	0.2%	Rank history: #56 in FY2022, not on the FY2023–FY2024 lists and #48 in FY2025; new, not ranked in FY2020.
34	The Kace Company, Llc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DOI (Department of the Interior)	$16,092,221	0.2%	Rank history: #26 in FY2022, #45 in FY2023, #45 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
35	Ipsos Public Affairs, LLC Top agencies VA (Department of Veterans Affairs)	$15,699,672	0.2%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
36	Riva Solutions Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOT (Department of Transportation)	$14,637,889	0.2%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
37	Afognak Native Corporation 8 awardees, including Alutiiq Essential Services LLC, Alutiiq Solutions, LLC and Alutiiq Information Management, LLC Top agencies DOS (Department of State) Navy (Department of the Navy) DHA (Defense Health Agency)	$14,519,332	0.2%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
38	United Language Group, Inc. Through Language Select, LLC Top agencies SSA (Social Security Administration)	$14,366,295	0.2%	Rank history: #78 in FY2022, #81 in FY2023, #96 in FY2024 and #46 in FY2025; up 49 since FY2020.
39	Competitive Innovations LLC Top agencies DOS (Department of State)	$14,106,272	0.2%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 91 since FY2020.
40	Coastal Management Solutions Inc. Top agencies Navy (Department of the Navy)	$13,596,495	0.2%	Rank history: #54 in FY2022, not on the FY2023 list, #71 in FY2024 and #78 in FY2025; up 99 since FY2020.
41	Techtrans International Inc. Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice)	$13,491,167	0.2%	Rank history: #52 in FY2022, not on the FY2023–FY2024 lists and #87 in FY2025; up 26 since FY2020.
42	Advanced Language Systems International Inc. Top agencies DOJ (Department of Justice)	$13,277,247	0.2%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
43	Knowesis, Inc. Top agencies DHA (Defense Health Agency)	$12,968,641	0.2%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
44	Asrc Federal Professional Services, LLC Top agencies Commerce (Department of Commerce)	$12,952,389	0.2%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
45	Project Support Services, Inc. Top agencies DOJ (Department of Justice)	$12,914,506	0.2%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
46	Bcfs Health and Human Services Top agencies HHS (Department of Health and Human Services)	$12,616,785	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Legal Interpreting Services, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$12,454,307	0.2%	Rank history: not on the FY2022–FY2025 lists; up 106 since FY2020.
48	Siertek, Ltd. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$12,426,167	0.2%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
49	Northbound Solutions LLC Top agencies DOE (Department of Energy)	$12,347,799	0.2%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
50	Aveshka, Inc. Top agencies HHS (Department of Health and Human Services)	$11,826,638	0.2%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
51	Miracorp Inc. Top agencies GSA (General Services Administration) DOE (Department of Energy) NASA (National Aeronautics and Space Administration)	$11,730,705	0.2%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
52	Eagle Health, LLC Top agencies Army (Department of the Army) PBGC (Pension Benefit Guaranty Corporation)	$11,541,248	0.2%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
53	Future Technologies, Inc. Top agencies Navy (Department of the Navy)	$11,400,305	0.2%	Rank history: #67 in FY2022, #99 in FY2023, #52 in FY2024 and #79 in FY2025; up 38 since FY2020.
54	Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$11,358,648	0.2%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 69 since FY2020.
55	ADC Ltd NM Top agencies DHS (Department of Homeland Security)	$11,318,774	0.2%	Rank history: #38 in FY2022, #24 in FY2023, #19 in FY2024 and #23 in FY2025; down 5 since FY2020.
56	Noblis, Inc. Top agencies DOS (Department of State) HHS (Department of Health and Human Services)	$11,313,007	0.2%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
57	Attainx Inc. 2 awardees Top agencies DOE (Department of Energy) USAF (Department of the Air Force)	$11,271,162	0.2%	Rank history: #53 in FY2022, #76 in FY2023, #98 in FY2024 and #94 in FY2025; up 70 since FY2020.
58	CBF Partners JV LLC Top agencies NASA (National Aeronautics and Space Administration)	$11,117,290	0.2%	Rank history: #45 in FY2022, #53 in FY2023, #34 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
59	Magellan Health, Inc. Through Magellan Federal, Inc. Top agencies Navy (Department of the Navy)	$10,910,863	0.1%	Rank history: #88 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2020.
60	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOJ (Department of Justice) HUD (Department of Housing and Urban Development)	$10,868,833	0.1%	Rank history: #11 in FY2022, #8 in FY2023, #12 in FY2024 and not on the FY2025 list; down 51 since FY2020.
61	Metis Celestar JV LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$10,839,534	0.1%	Rank history: #60 in FY2022, #72 in FY2023, #75 in FY2024 and not on the FY2025 list; up 27 since FY2020.
62	Theradex Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$10,573,968	0.1%	Rank history: not on the FY2022–FY2025 lists; up 30 since FY2020.
63	Pn-Heitech, LLC Top agencies HHS (Department of Health and Human Services)	$10,450,376	0.1%	Rank history: #76 in FY2022, #66 in FY2023, #60 in FY2024 and #58 in FY2025; up 9 since FY2020.
64	Interior Systems, Inc. Top agencies DHS (Department of Homeland Security)	$10,390,595	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
65	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc. and Leidos Digital Solutions Inc. Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency) DOJ (Department of Justice)	$10,302,285	0.1%	Rank history: #70 in FY2022, #44 in FY2023, #29 in FY2024 and #29 in FY2025; up 53 since FY2020.
66	International Business Machines Corporation 2 awardees Top agencies DHS (Department of Homeland Security) PBGC (Pension Benefit Guaranty Corporation)	$10,272,130	0.1%	Rank history: not on the FY2022–FY2025 lists; up 75 since FY2020.
67	Education Development Center, Inc. Top agencies USAID (US Agency for International Development)	$10,123,429	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Project Enhancement Corporation Top agencies DOE (Department of Energy)	$10,120,058	0.1%	Rank history: #27 in FY2022, #21 in FY2023, #21 in FY2024 and #19 in FY2025; up 247 since FY2020.
69	Techop Solutions International, Inc. Top agencies DHS (Department of Homeland Security)	$10,066,598	0.1%	Rank history: #66 in FY2022, #74 in FY2023, #73 in FY2024 and not on the FY2025 list; up 2 since FY2020.
70	Katmai Integrated Solutions, LLC Top agencies Navy (Department of the Navy)	$9,983,169	0.1%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and not on the FY2025 list; up 36 since FY2020.
71	The Tatitlek Corporation 3 awardees, including Tatitlek Technologies, LLC Top agencies Navy (Department of the Navy)	$9,811,275	0.1%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
72	Versability Resources, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$9,763,530	0.1%	Rank history: #58 in FY2022, #89 in FY2023, #50 in FY2024 and #51 in FY2025; up 160 since FY2020.
73	Ebsco Industries Inc. 3 awardees Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$9,575,270	0.1%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 103 since FY2020.
74	Logistics Management Institute Top agencies OSD (Office of the Secretary of Defense)	$9,422,247	0.1%	Rank history: not on the FY2022–FY2025 lists; down 30 since FY2020.
75	Accenture Federal Services LLC 2 awardees, including ASM Research, LLC Top agencies OPM (Office of Personnel Management) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$9,276,730	0.1%	Rank history: #28 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 130 since FY2020.
76	Crosstown Courier Service Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$9,271,742	0.1%	Rank history: #80 in FY2022, #79 in FY2023, #100 in FY2024 and #69 in FY2025; down 15 since FY2020.
77	Quality Support, Inc. Top agencies DOS (Department of State)	$9,196,578	0.1%	Rank history: #89 in FY2022, not on the FY2023 list, #47 in FY2024 and not on the FY2025 list; down 28 since FY2020.
78	National Associates, Inc. Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) GSA (General Services Administration)	$9,160,639	0.1%	Rank history: not on the FY2022–FY2023 lists, #78 in FY2024 and #70 in FY2025; new, not ranked in FY2020.
79	Trace Systems Holdings Inc. Through Trace Systems, Inc. Top agencies Army (Department of the Army)	$9,104,852	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Advancia Ahtna JV, LLC Top agencies SSA (Social Security Administration)	$8,909,169	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
81	Betah Associates, Inc. Top agencies DOJ (Department of Justice) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$8,897,395	0.1%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
82	Liberty Business Associates, LLC Top agencies Navy (Department of the Navy)	$8,873,437	0.1%	Rank history: #75 in FY2022, #70 in FY2023, #51 in FY2024 and #57 in FY2025; up 49 since FY2020.
83	Seventh Sense, LLC Top agencies NASA (National Aeronautics and Space Administration) DTRA (Defense Threat Reduction Agency) DOE (Department of Energy)	$8,851,951	0.1%	Rank history: not on the FY2022–FY2023 lists, #72 in FY2024 and #72 in FY2025; up 19 since FY2020.
84	City Enterprises, LLC Through Dealers Auto Auction Group LLC Top agencies GSA (General Services Administration)	$8,797,930	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Sehlke Consulting LLC Top agencies DHA (Defense Health Agency) USSOCOM (United States Special Operations Command)	$8,503,465	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	R & K Enterprise Solutions Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$8,388,419	0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 69 since FY2020.
87	Summit Consulting LLC Top agencies ED (Department of Education)	$8,365,282	0.1%	Rank history: not on the FY2022–FY2023 lists, #92 in FY2024 and not on the FY2025 list; down 3 since FY2020.
88	Wolters Kluwer N.V. 4 awardees, including Uptodate, Inc., Wolters Kluwer Clinical Drug Information, Inc. and CCH Incorporated Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) CFTC (Commodity Futures Trading Commission)	$8,313,351	0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
89	Reed Elsevier Inc. 8 awardees, including Elsevier B.V., Relx Inc. and Lexisnexis Special Services Inc. Top agencies Commerce (Department of Commerce) DOS (Department of State) DHS (Department of Homeland Security)	$8,068,584	0.1%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
90	The Emmes Company, LLC Top agencies HHS (Department of Health and Human Services)	$8,043,304	0.1%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
91	Technical Resources International, Inc. Top agencies HHS (Department of Health and Human Services)	$7,909,083	0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
92	CDW Corporation Through CDW Government LLC Top agencies DOT (Department of Transportation) Selective Service System Navy (Department of the Navy)	$7,885,767	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Experian PLC 2 awardees, including Experian Information Solutions, Inc. Top agencies HHS (Department of Health and Human Services) SBA (Small Business Administration) Treasury (Department of the Treasury)	$7,870,395	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Total Solutions Inc. Top agencies NASA (National Aeronautics and Space Administration)	$7,846,562	0.1%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
95	Total Systems Technologies Corporation Top agencies DHS (Department of Homeland Security)	$7,829,061	0.1%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
96	Contracting Resources Group Inc. Top agencies DOS (Department of State) Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$7,764,351	0.1%	Rank history: not on the FY2022–FY2025 lists; up 112 since FY2020.
97	Peckham Vocational Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$7,683,647	0.1%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
98	Innovative Management Concepts, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$7,431,834	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	American Institute In Taiwan Top agencies DOS (Department of State) Navy (Department of the Navy)	$7,412,005	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Chickasaw Management Services, LLC Top agencies DOE (Department of Energy)	$7,263,795	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 57 since FY2020.

Show 75 more

100 of 3,566 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC R6

Code	Net obligations	Largest contractor
R699 Other Administrative Support Services	$3,357,587,226	Ministry of Defense
R604 Mailing and Distribution Services	$1,972,036,340	Mckesson Corporation
R615 Support – Administrative: Background Investigation	$639,419,555	CACI International Inc.
R608 Translation and Interpreting Services(Including Sign Language)	$239,918,638	Metropolitan Interpreters & Translators, Inc.
R612 Information Retrieval	$132,415,748	DUN & Bradstreet Inc.
R605 Library Services	$92,959,130	Asrc Federal Professional Services, LLC
R617 Administrative Support Services	$63,677,071	Brillient Corporation
R602 Courier and Messenger Services	$54,696,950	United Parcel Service Inc.
R610 Personal Property Management Services	$50,696,061	City Enterprises, LLC
R603 Transcription Services	$39,859,051	Diaz Data Services LLC
R607 Word Processing/Typing Services	$17,830,921	The Data Entry Company
R614 Paper Shredding Services	$16,536,194	Stericycle Inc.
R606 Court Reporting Services	$15,706,038	Diversified Reporting Services, Inc.
R613 Post Office Services	$13,939,977	IAP Global Services LLC
R616 Administrative Support Services	$12,665,314	Iron Mountain Incorporated

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 $7.31 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 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC R6 contractors in FY2021?

1. Mckesson Corporation ($1.49B), 2. Ministry of Defense ($1.13B), 3. Fedex Corp ($269M), 4. CACI International Inc. ($252M), 5. Perspecta Inc. ($175M), 6. PAE Government Services Inc. ($128M), 7. Brillient Corporation ($107M), 8. Securitas AB ($98.5M), 9. Carahsoft Technology Corp ($64.8M), 10. General Dynamics Corporation ($62.1M).

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