Top 100 Contractors in NAICS 5611: Office Administrative Services, FY2024

Name: Top 100 Contractors in NAICS 5611: Office Administrative Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 37% of FY2024 NAICS 5611 contract dollars

Contract obligations: $788,276,621 Net of deobligations, by contracts coded NAICS 5611 or a code under it
Contractors: 531 Parent companies with an obligation
Largest contractor: ITC Federal, LLC $81.7 million, 9.6% 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	ITC Federal, LLC Top agencies DHS (Department of Homeland Security)	$81,729,932	9.6%	Rank history: #3 in FY2021, #5 in FY2022, #1 in FY2023 and #3 in FY2025; unchanged since FY2023.
2	Agile Decision Sciences, LLC Top agencies NASA (National Aeronautics and Space Administration)	$42,440,025	5.0%	Rank history: #6 in FY2021, #6 in FY2022, #7 in FY2023 and not on the FY2025 list; up 5 since FY2023.
3	Trax International Corporation Top agencies NASA (National Aeronautics and Space Administration)	$31,693,451	3.7%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and not on the FY2025 list; unchanged since FY2023.
4	Kent Campa & Kate Inc. Top agencies DOS (Department of State) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$26,986,990	3.2%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #6 in FY2025; up 1 since FY2023.
5	CBF Partners JV LLC Top agencies NASA (National Aeronautics and Space Administration)	$23,521,817	2.8%	Rank history: #12 in FY2021, #12 in FY2022, #10 in FY2023 and #15 in FY2025; up 5 since FY2023.
6	LMI Consulting, LLC Top agencies USAF (Department of the Air Force)	$22,265,724	2.6%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #7 in FY2025; up 18 since FY2023.
7	Sciolex Corporation Top agencies DHS (Department of Homeland Security)	$22,149,981	2.6%	Rank history: #1 in FY2021, #2 in FY2022, #4 in FY2023 and #5 in FY2025; down 3 since FY2023.
8	Cherokee Nation Federal Consulting, L.L.C. Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior)	$21,661,961	2.5%	Rank history: not on the FY2021 list, #1 in FY2022, #2 in FY2023 and not on the FY2025 list; down 6 since FY2023.
9	Muscogee Arora JV LLC Top agencies Army (Department of the Army)	$21,603,513	2.5%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023 and not on the FY2025 list; unchanged since FY2023.
10	Koniag, Inc. 2 awardees, including Koniag Brillient, LLC and Arlluk Technology Solutions LLC Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$19,343,436	2.3%	Rank history: #7 in FY2021, #14 in FY2022, #6 in FY2023 and not on the FY2025 list; down 4 since FY2023.
11	Techop Solutions International, Inc. Top agencies DHS (Department of Homeland Security)	$16,711,558	2.0%	Rank history: #14 in FY2021, #16 in FY2022, #12 in FY2023 and #26 in FY2025; up 1 since FY2023.
12	Katmai North America LLC Top agencies Army (Department of the Army)	$15,339,753	1.8%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and #11 in FY2025; down 1 since FY2023.
13	National Industries for the Blind Top agencies DCMA (Defense Contract Management Agency) Navy (Department of the Navy) Army (Department of the Army)	$14,830,215	1.7%	Rank history: #9 in FY2021, #7 in FY2022, #19 in FY2023 and #10 in FY2025; up 6 since FY2023.
14	Federal Staffing Resources LLC Top agencies DHA (Defense Health Agency)	$11,902,051	1.4%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023 and not on the FY2025 list; up 1 since FY2023.
15	Bowhead Marine Support Services, LLC 2 awardees Top agencies DHS (Department of Homeland Security)	$11,391,021	1.3%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
16	Choisys Technology Inc. Top agencies DOS (Department of State)	$11,265,470	1.3%	Rank history: not on the FY2021 list, #22 in FY2022, #13 in FY2023 and #23 in FY2025; down 3 since FY2023.
17	Protech Services Alliance Usa, LLC Top agencies DHS (Department of Homeland Security)	$9,102,686	1.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and #20 in FY2025; up 44 since FY2023.
18	Tmc-Telesolv Top agencies DHS (Department of Homeland Security)	$8,622,059	1.0%	Rank history: #33 in FY2021, #20 in FY2022, #14 in FY2023 and #32 in FY2025; down 4 since FY2023.
19	Muscogee Staffing Solutions, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) HUD (Department of Housing and Urban Development)	$8,250,742	1.0%	Rank history: #98 in FY2021, #72 in FY2022, #25 in FY2023 and not on the FY2025 list; up 6 since FY2023.
20	Sourceamerica Top agencies USAF (Department of the Air Force)	$8,109,778	1.0%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023 and #13 in FY2025; up 3 since FY2023.
21	Bryce Space and Technology, LLC Top agencies HHS (Department of Health and Human Services)	$8,022,605	0.9%	Rank history: not on the FY2021 list, #37 in FY2022, #38 in FY2023 and not on the FY2025 list; up 17 since FY2023.
22	TM3 Solutions Inc. Top agencies DHA (Defense Health Agency)	$7,963,025	0.9%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$7,496,381	0.9%	Rank history: #27 in FY2021, #32 in FY2022, #20 in FY2023 and #29 in FY2025; down 3 since FY2023.
24	Fury Solutions LLC Top agencies USAF (Department of the Air Force)	$7,266,879	0.9%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #14 in FY2025; up 2 since FY2023.
25	Trace Systems Holdings Inc. Through Trace Systems, Inc. Top agencies Army (Department of the Army)	$7,244,939	0.9%	Rank history: #17 in FY2021, #23 in FY2022, #18 in FY2023 and not on the FY2025 list; down 7 since FY2023.
26	Lbyd Federal, LLC Top agencies DOE (Department of Energy)	$6,621,112	0.8%	Rank history: #75 in FY2021, #62 in FY2022, not on the FY2023 list and #19 in FY2025; up 308 since FY2023.
27	Vision Centric Inc Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$6,555,573	0.8%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #24 in FY2025; up 18 since FY2023.
28	Mora Consultants LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration)	$6,343,296	0.7%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #17 in FY2025; up 46 since FY2023.
29	Versability Resources, Inc. Top agencies Navy (Department of the Navy)	$5,573,866	0.7%	Rank history: #34 in FY2021, #27 in FY2022, #29 in FY2023 and #43 in FY2025; unchanged since FY2023.
30	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics LLC Top agencies DOJ (Department of Justice)	$5,189,511	0.6%	Rank history: #36 in FY2021, not on the FY2022–FY2023 lists and #2 in FY2025; returned.
31	Chenhall'S Staffing Services Inc. Through Chenhall Sedona Solutions Joint Venture LLC Top agencies DOI (Department of the Interior)	$4,977,519	0.6%	Rank history: not on the FY2021 list, #34 in FY2022, #28 in FY2023 and not on the FY2025 list; down 3 since FY2023.
32	Contemporaries, Inc. Top agencies HHS (Department of Health and Human Services)	$4,934,380	0.6%	Rank history: #49 in FY2021, #78 in FY2022, #34 in FY2023 and #46 in FY2025; up 2 since FY2023.
33	Koniag Management Solutions LLC Top agencies DHS (Department of Homeland Security)	$4,844,333	0.6%	Rank history: #54 in FY2021, #40 in FY2022, #36 in FY2023 and #31 in FY2025; up 3 since FY2023.
34	Vinnell Arabia, LLC Top agencies Army (Department of the Army)	$4,822,818	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
35	Katmai Commodities, LLC Top agencies Navy (Department of the Navy)	$4,732,989	0.6%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
36	Servicesource Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) CFPB (Consumer Financial Protection Bureau)	$4,731,652	0.6%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; up 81 since FY2023.
37	MEC Technologies LLC Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$4,629,691	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
38	Nakupuna Consulting LLC Top agencies OSD (Office of the Secretary of Defense)	$4,368,703	0.5%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
39	Culmen International, LLC Top agencies Army (Department of the Army) DSCA (Defense Security Cooperation Agency)	$4,326,269	0.5%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; up 284 since FY2023.
40	Five Rivers Analytics, LLC Top agencies Commerce (Department of Commerce)	$4,094,539	0.5%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and #18 in FY2025; up 3 since FY2023.
41	Kunwon-Ch2M Hill Pmc, LLC Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense)	$3,732,187	0.4%	Rank history: #26 in FY2021, #33 in FY2022, #37 in FY2023 and #34 in FY2025; down 4 since FY2023.
42	Melwood Horticultural Training Center, Inc. Top agencies Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration) DTRA (Defense Threat Reduction Agency)	$3,707,564	0.4%	Rank history: #55 in FY2021, #73 in FY2022, #51 in FY2023 and #44 in FY2025; up 9 since FY2023.
43	Ibex It Business Experts LLC Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services)	$3,707,490	0.4%	Rank history: #53 in FY2021, #45 in FY2022, #47 in FY2023 and #64 in FY2025; up 4 since FY2023.
44	PCI Productions LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,644,088	0.4%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
45	Depaul Industries Top agencies Army (Department of the Army) Navy (Department of the Navy) DOT (Department of Transportation)	$3,626,585	0.4%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
46	Nana Regional Corporation Inc Through Akima Global Services, LLC Top agencies Commerce (Department of Commerce)	$3,558,699	0.4%	Rank history: #18 in FY2021, #15 in FY2022, #32 in FY2023 and not on the FY2025 list; down 14 since FY2023.
47	General Dynamics Corporation 3 awardees, including Csra LLC and General Dynamics Information Technology, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$3,521,021	0.4%	Rank history: #4 in FY2021, #11 in FY2022, #8 in FY2023 and #69 in FY2025; down 39 since FY2023.
48	Sol Engineering Services, LLC Top agencies Army (Department of the Army)	$3,327,286	0.4%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and #30 in FY2025; up 25 since FY2023.
49	JP Logistics & Consulting, LLC Top agencies USAF (Department of the Air Force)	$3,306,380	0.4%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
50	Casepoint, LLC Top agencies VA (Department of Veterans Affairs)	$3,204,975	0.4%	Rank history: #90 in FY2021, #83 in FY2022, #64 in FY2023 and #39 in FY2025; up 14 since FY2023.
51	T L Newman Incorporated Through Trevor L Newman LLC Top agencies DOT (Department of Transportation)	$3,187,643	0.4%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #52 in FY2025; up 16 since FY2023.
52	Nemean Solutions LLC Top agencies Army (Department of the Army)	$3,097,503	0.4%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; up 53 since FY2023.
53	D2 Government Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,835,760	0.3%	Rank history: #40 in FY2021, #51 in FY2022, #56 in FY2023 and not on the FY2025 list; up 3 since FY2023.
54	Redzone LLC Top agencies DHS (Department of Homeland Security)	$2,823,004	0.3%	Rank history: #79 in FY2021, #76 in FY2022, #75 in FY2023 and not on the FY2025 list; up 21 since FY2023.
55	Aims-Usgp JV LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,736,709	0.3%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and not on the FY2025 list; up 34 since FY2023.
56	Cherokee Nation Defense Solutions LLC Top agencies USAF (Department of the Air Force)	$2,717,947	0.3%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; new.
57	Al Massaq Support Services Ltd Co Top agencies Army (Department of the Army)	$2,702,615	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	BHI Management Inc. Top agencies HHS (Department of Health and Human Services)	$2,692,958	0.3%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; new.
59	Crossroads Talent Solutions, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,665,984	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; up 214 since FY2023.
60	Bowhead Global Systems and Technology, LLC Top agencies Army (Department of the Army)	$2,584,873	0.3%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
61	Femdel LLC Top agencies GSA (General Services Administration)	$2,580,332	0.3%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; up 59 since FY2023.
62	Alexton Incorporated Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$2,573,915	0.3%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
63	Miracorp Inc Top agencies DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration)	$2,528,952	0.3%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and not on the FY2025 list; down 33 since FY2023.
64	Z-Tech Solutions, LLC Top agencies DOT (Department of Transportation)	$2,462,526	0.3%	Rank history: #83 in FY2021, #63 in FY2022, #71 in FY2023 and #50 in FY2025; up 7 since FY2023.
65	Nomadic Land Camps, LLC Top agencies USDA (Department of Agriculture)	$2,442,297	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
66	Brandan Enterprises, Inc. Top agencies HHS (Department of Health and Human Services)	$2,439,612	0.3%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023 list and #41 in FY2025; up 307 since FY2023.
67	Chenega Enterprise Systems & Solutions, LLC Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$2,409,764	0.3%	Rank history: #44 in FY2021, #49 in FY2022, #50 in FY2023 and not on the FY2025 list; down 17 since FY2023.
68	Koniag Brillient, LLC Top agencies DHS (Department of Homeland Security)	$2,385,274	0.3%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
69	BG Consulting Services LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$2,263,752	0.3%	Rank history: not on the FY2021 list, #93 in FY2022, #44 in FY2023 and #54 in FY2025; down 25 since FY2023.
70	Chenega Analytic Business Solutions, LLC Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$2,236,360	0.3%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
71	Arlluk Technology Solutions LLC Top agencies USDA (Department of Agriculture)	$2,190,961	0.3%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2025; new.
72	Blue Rose Consulting Group Inc. Top agencies DOI (Department of the Interior)	$2,063,593	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 142 since FY2023.
73	The Bizzell Group LLC Top agencies DOT (Department of Transportation)	$2,058,284	0.2%	Rank history: #72 in FY2021, #64 in FY2022, #68 in FY2023 and #98 in FY2025; down 5 since FY2023.
74	Strongbow Strategies LLC Top agencies DOT (Department of Transportation) DOI (Department of the Interior)	$2,014,577	0.2%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; up 54 since FY2023.
75	Kwaan Bear It Solutions, LLC Top agencies DOS (Department of State)	$1,982,840	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Didlake Inc. Top agencies DOE (Department of Energy) HUD (Department of Housing and Urban Development)	$1,949,991	0.2%	Rank history: #58 in FY2021, #71 in FY2022, #72 in FY2023 and #51 in FY2025; down 4 since FY2023.
77	Windsor Group LLC Top agencies HHS (Department of Health and Human Services) DMA (Defense Media Activity)	$1,907,981	0.2%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2025; up 62 since FY2023.
78	Wisengineering LLC Top agencies Army (Department of the Army)	$1,889,811	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; up 54 since FY2023.
79	Nobis Enterprises, Inc. Top agencies HUD (Department of Housing and Urban Development) GSA (General Services Administration) Army (Department of the Army)	$1,850,557	0.2%	Rank history: #85 in FY2021, #82 in FY2022, #78 in FY2023 and #63 in FY2025; down 1 since FY2023.
80	Areli Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$1,827,039	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and #61 in FY2025; up 13 since FY2023.
81	Rividium Inc. Top agencies DNFSB (Defense Nuclear Facilities Safety Board)	$1,791,316	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and not on the FY2025 list; unchanged since FY2023.
82	Advent Svcs LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,774,136	0.2%	Rank history: not on the FY2021 list, #97 in FY2022, #85 in FY2023 and #56 in FY2025; up 3 since FY2023.
83	Hedgelan Consulting LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$1,757,290	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 21 since FY2023.
84	Forge Group, LLC Top agencies OSD (Office of the Secretary of Defense)	$1,708,714	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
85	CTR Management Group LLC Top agencies DOT (Department of Transportation)	$1,686,278	0.2%	Rank history: #100 in FY2021, not on the FY2022 list, #91 in FY2023 and #94 in FY2025; up 6 since FY2023.
86	Clason Point Partners Inc. Top agencies DOT (Department of Transportation)	$1,677,237	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #83 in FY2023 and not on the FY2025 list; down 3 since FY2023.
87	T47 International Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,636,358	0.2%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; new.
88	Coho Federal Solutions JV LLC Top agencies Navy (Department of the Navy)	$1,614,132	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and not on the FY2025 list; down 31 since FY2023.
89	Maven OFS JV Inc. Top agencies DOD (Department of Defense)	$1,598,557	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2025 list; up 1 since FY2023.
90	Eursdale Companies LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$1,589,619	0.2%	Rank history: not on the FY2021 list, #31 in FY2022, #33 in FY2023 and #67 in FY2025; down 57 since FY2023.
91	Bluepath Labs LLC Top agencies DOE (Department of Energy)	$1,570,314	0.2%	Rank history: #94 in FY2021, #88 in FY2022, not on the FY2023 list and #80 in FY2025; up 16 since FY2023.
92	Great Hill Solutions, LLC Top agencies DOJ (Department of Justice)	$1,557,646	0.2%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
93	GC Associates Usa, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$1,546,974	0.2%	Rank history: #57 in FY2021, not on the FY2022 list, #95 in FY2023 and #97 in FY2025; up 2 since FY2023.
94	Essnova Solutions Inc. Top agencies OSD (Office of the Secretary of Defense) USDA (Department of Agriculture) Navy (Department of the Navy)	$1,542,057	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; new.
95	Professional Contract Services, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$1,481,641	0.2%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #71 in FY2025; down 1 since FY2023.
96	Advanced Automation Technologies Inc Top agencies HHS (Department of Health and Human Services)	$1,472,107	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Evergreen Resource Inc. Top agencies USDA (Department of Agriculture)	$1,466,105	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 206 since FY2023.
98	Diverse Staffing Services Inc Top agencies DOJ (Department of Justice)	$1,422,973	0.2%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and not on the FY2025 list; down 18 since FY2023.
99	The Jardin Group, LLC Top agencies SBA (Small Business Administration)	$1,413,062	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; up 9 since FY2023.
100	Ciconix, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$1,357,204	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 1 since FY2023.

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100 of 531 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 5611

Code	Net obligations	Largest contractor
56111 Office Administrative Services	$788,276,621	ITC Federal, LLC

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 $852 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 5611 contractors in FY2024?

1. ITC Federal, LLC ($81.7M), 2. Agile Decision Sciences, LLC ($42.4M), 3. Trax International Corporation ($31.7M), 4. Kent Campa & Kate Inc. ($27M), 5. CBF Partners JV LLC ($23.5M), 6. LMI Consulting, LLC ($22.3M), 7. Sciolex Corporation ($22.1M), 8. Cherokee Nation Federal Consulting, L.L.C. ($21.7M), 9. Muscogee Arora JV LLC ($21.6M), 10. Koniag, Inc. ($19.3M).

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