Top 100 Contractors in NAICS 56142: Telephone Call Centers, FY2023

Name: Top 100 Contractors in NAICS 56142: Telephone Call Centers, FY2023
Creator: GovTribe

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

The top 10 won 90% of FY2023 NAICS 56142 contract dollars

Contract obligations: $1,070,303,441 Net of deobligations, by contracts coded NAICS 56142 or a code under it
Contractors: 131 Parent companies with an obligation
Largest contractor: Maximus Inc. $795 million, 69.9% 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	Maximus Inc. Through Maximus Federal Services, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$795,315,942	69.9%	Rank history: #1 in FY2021, #1 in FY2022, #15 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	Peckham Vocational Industries, Inc. Top agencies DOS (Department of State)	$108,790,283	9.6%	Rank history: #2 in FY2021, #2 in FY2022, #3 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	Inspiritec Inc. Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army)	$46,807,863	4.1%	Rank history: #4 in FY2021, #3 in FY2022, #2 in FY2024 and not on the FY2025 list; unchanged since FY2022.
4	Strategic Data Systems, Inc. Top agencies Navy (Department of the Navy)	$19,899,138	1.7%	Rank history: #6 in FY2021, #5 in FY2022, #4 in FY2024 and #4 in FY2025; up 1 since FY2022.
5	The Bowen Consulting Group. Inc. Top agencies VA (Department of Veterans Affairs)	$18,935,753	1.7%	Rank history: #5 in FY2021, #6 in FY2022, #9 in FY2024 and #3 in FY2025; up 1 since FY2022.
6	Fred Hutchinson Cancer Center Top agencies HHS (Department of Health and Human Services)	$8,015,904	0.7%	Rank history: not on the FY2021 list, #16 in FY2022, #7 in FY2024 and #6 in FY2025; up 10 since FY2022.
7	Kech Inc. Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$6,606,166	0.6%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and #5 in FY2025; new.
8	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DHA (Defense Health Agency)	$5,805,029	0.5%	Rank history: #9 in FY2021, #9 in FY2022, #6 in FY2024 and #13 in FY2025; up 1 since FY2022.
9	Tmax Government Solutions LLC Top agencies VA (Department of Veterans Affairs)	$4,949,301	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
10	Baptist Child & Family Services Through Bcfs Health and Human Services Top agencies HHS (Department of Health and Human Services)	$4,685,588	0.4%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2024 and not on the FY2025 list; new.
11	National Telecommuting Institute, Inc. Top agencies Treasury (Department of the Treasury)	$4,412,701	0.4%	Rank history: #8 in FY2021, #8 in FY2022, #8 in FY2024 and #7 in FY2025; down 3 since FY2022.
12	Pearl Interactive Network LLC Top agencies HHS (Department of Health and Human Services)	$4,099,104	0.4%	Rank history: #12 in FY2021, #12 in FY2022, #13 in FY2024 and #16 in FY2025; unchanged since FY2022.
13	Magellan Solutions USA Inc. Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$4,056,848	0.4%	Rank history: #14 in FY2021, #13 in FY2022, #14 in FY2024 and #9 in FY2025; unchanged since FY2022.
14	Innovation At Work Inc. Top agencies VA (Department of Veterans Affairs)	$3,786,018	0.3%	Rank history: #15 in FY2021, #15 in FY2022, #10 in FY2024 and #8 in FY2025; up 1 since FY2022.
15	North South Consulting Group LLC Top agencies Army (Department of the Army)	$3,228,765	0.3%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and not on the FY2025 list; new.
16	Ivyhill Technologies LLC Top agencies DHA (Defense Health Agency)	$2,857,530	0.3%	Rank history: #16 in FY2021, #10 in FY2022, #50 in FY2024 and #12 in FY2025; down 6 since FY2022.
17	Newview Oklahoma, Inc. Top agencies USAF (Department of the Air Force)	$2,797,032	0.2%	Rank history: #17 in FY2021, #18 in FY2022, #17 in FY2024 and #11 in FY2025; up 1 since FY2022.
18	Bobby Dodd Institute, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$2,720,050	0.2%	Rank history: #13 in FY2021, #14 in FY2022, #16 in FY2024 and #10 in FY2025; down 4 since FY2022.
19	Quality Innovation, Inc. Top agencies VA (Department of Veterans Affairs)	$1,892,311	0.2%	Rank history: #44 in FY2021, #41 in FY2022, #34 in FY2024 and not on the FY2025 list; up 22 since FY2022.
20	Goodwill Vision Enterprises, Inc. Top agencies EPA (Environmental Protection Agency)	$1,590,418	0.1%	Rank history: #22 in FY2021, #23 in FY2022, #21 in FY2024 and #15 in FY2025; up 3 since FY2022.
21	Employment Source Inc. Top agencies VA (Department of Veterans Affairs)	$1,508,561	0.1%	Rank history: #25 in FY2021, #27 in FY2022, #18 in FY2024 and #21 in FY2025; up 6 since FY2022.
22	LBO Technology LLC Top agencies Navy (Department of the Navy)	$1,470,771	0.1%	Rank history: not on the FY2021 list, #30 in FY2022, #20 in FY2024 and #17 in FY2025; up 8 since FY2022.
23	Icube-It JV Top agencies HUD (Department of Housing and Urban Development)	$1,407,373	0.1%	Rank history: #23 in FY2021, #26 in FY2022, #22 in FY2024 and #38 in FY2025; up 3 since FY2022.
24	Koniag, Inc. Through Tuknik Government Services LLC Top agencies Commerce (Department of Commerce)	$1,328,706	0.1%	Rank history: #26 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
25	Central Association for the Blind, Inc. Top agencies DOT (Department of Transportation) VA (Department of Veterans Affairs)	$1,307,512	0.1%	Rank history: #33 in FY2021, #20 in FY2022, #12 in FY2024 and #14 in FY2025; down 5 since FY2022.
26	Everas Community Services, Inc. Top agencies VA (Department of Veterans Affairs)	$1,301,028	0.1%	Rank history: #27 in FY2021, #29 in FY2022, #23 in FY2024 and #19 in FY2025; up 3 since FY2022.
27	Via Visually Impaired Advancement Top agencies VA (Department of Veterans Affairs)	$1,288,827	0.1%	Rank history: #40 in FY2021, #37 in FY2022, not on the FY2024 list and #31 in FY2025; up 10 since FY2022.
28	Breakforth Solutions Incorporated Top agencies DOJ (Department of Justice)	$1,154,699	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and not on the FY2025 list; new.
29	General Infomatics-A Service Disabled Owned Veteran Business, Inc. Top agencies DHA (Defense Health Agency)	$1,054,269	0.1%	Rank history: #30 in FY2021, #31 in FY2022, #26 in FY2024 and #29 in FY2025; up 2 since FY2022.
30	Versability Resources, Inc. Top agencies USAF (Department of the Air Force)	$1,006,147	0.1%	Rank history: #21 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
31	Liona Enterprises Inc Top agencies HUD (Department of Housing and Urban Development)	$820,395	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #28 in FY2025; new.
32	Fora Pathways, Inc. Top agencies VA (Department of Veterans Affairs)	$808,966	0.1%	Rank history: #36 in FY2021, #33 in FY2022, #28 in FY2024 and #27 in FY2025; up 1 since FY2022.
33	Capitol Bridge, LLC Top agencies HUD (Department of Housing and Urban Development)	$796,851	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Viateq Corp Top agencies HUD (Department of Housing and Urban Development)	$706,906	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Lighthouse for the Blind of Houston Top agencies VA (Department of Veterans Affairs)	$701,401	0.1%	Rank history: #38 in FY2021, #25 in FY2022, #19 in FY2024 and #24 in FY2025; down 10 since FY2022.
36	Memphis Goodwill Industries Inc. Top agencies VA (Department of Veterans Affairs)	$639,585	0.1%	Rank history: #42 in FY2021, #39 in FY2022, #30 in FY2024 and #22 in FY2025; up 3 since FY2022.
37	Skyward It Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$626,682	0.1%	Rank history: #41 in FY2021, #38 in FY2022, #31 in FY2024 and not on the FY2025 list; up 1 since FY2022.
38	Aurora of Central New York, Inc. Top agencies VA (Department of Veterans Affairs)	$613,308	0.1%	Rank history: #43 in FY2021, not on the FY2022 list, #33 in FY2024 and #30 in FY2025; returned.
39	Cherokee Nation Mission Solutions, L.L.C. Top agencies Army (Department of the Army)	$601,664	0.1%	Rank history: #20 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
40	M&M It Solutions, LLC Top agencies HUD (Department of Housing and Urban Development)	$594,689	0.1%	Rank history: #34 in FY2021, #45 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
41	Association for Vision Rehabilitation and Employment, Inc. Top agencies VA (Department of Veterans Affairs)	$517,812	<0.1%	Rank history: #29 in FY2021, #43 in FY2022, #36 in FY2024 and #34 in FY2025; up 2 since FY2022.
42	Career Management Associates of Iowa, LLC Top agencies VA (Department of Veterans Affairs)	$500,339	<0.1%	Rank history: #31 in FY2021, #42 in FY2022, #37 in FY2024 and #36 in FY2025; unchanged since FY2022.
43	Goodwill Industries of North Louisiana, Inc. Top agencies VA (Department of Veterans Affairs)	$497,950	<0.1%	Rank history: #45 in FY2021, #47 in FY2022, #35 in FY2024 and #35 in FY2025; up 4 since FY2022.
44	Mountainside Medical Equipment Inc. Top agencies VA (Department of Veterans Affairs)	$394,500	<0.1%	Rank history: #47 in FY2021, #40 in FY2022, #40 in FY2024 and #42 in FY2025; down 4 since FY2022.
45	Cherokee Nation System Solutions LLC Top agencies DOI (Department of the Interior)	$189,452	<0.1%	Rank history: #18 in FY2021, #21 in FY2022, #41 in FY2024 and not on the FY2025 list; down 24 since FY2022.
46	Deborgem Enterprises Incorporated Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$186,455	<0.1%	Rank history: #96 in FY2021, #50 in FY2022, #43 in FY2024 and #44 in FY2025; up 4 since FY2022.
47	Marion Area Multi Agency Emergency Telecommunications Center (Metcom) Top agencies USDA (Department of Agriculture)	$140,261	<0.1%	Rank history: not on the FY2021 list, #51 in FY2022, #45 in FY2024 and #45 in FY2025; up 4 since FY2022.
48	Valley Center for the Blind Top agencies OPM (Office of Personnel Management)	$133,604	<0.1%	Rank history: not on the FY2021 list, #52 in FY2022, #48 in FY2024 and #46 in FY2025; up 4 since FY2022.
49	Chimera Enterprises International Incorporated Top agencies Army (Department of the Army)	$120,792	<0.1%	Rank history: #58 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
50	Intellectechs Inc. Top agencies USAID (US Agency for International Development)	$113,733	<0.1%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
51	Kingdom of Saudi Arabia Through STC Bahrain B.s.c Closed Top agencies DOS (Department of State) USAF (Department of the Air Force)	$86,489	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Telefonica Celular S.a. DE C.V. 2 awardees, including Grupo De Comunicaciones Digitales S.A. and Comunicaciones Celulares S.A. Top agencies DOJ (Department of Justice) DOS (Department of State)	$79,153	<0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #67 in FY2024 and not on the FY2025 list; up 28 since FY2022.
53	Windsor Trading FZE Top agencies DOS (Department of State)	$70,731	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
54	Callware Technologies Inc. Top agencies USAF (Department of the Air Force)	$69,916	<0.1%	Rank history: #57 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
55	Entourage Consulting LLC Top agencies USAF (Department of the Air Force)	$67,560	<0.1%	Rank history: not on the FY2021 list, #57 in FY2022, #58 in FY2024 and not on the FY2025 list; up 2 since FY2022.
56	Fonemed LLC Top agencies HHS (Department of Health and Human Services)	$65,080	<0.1%	Rank history: #97 in FY2021, #60 in FY2022, #56 in FY2024 and #64 in FY2025; up 4 since FY2022.
57	LEO Tech LLC Top agencies Navy (Department of the Navy)	$60,725	<0.1%	Rank history: #61 in FY2021, #59 in FY2022, not on the FY2024 list and #61 in FY2025; up 2 since FY2022.
58	Frontier Communications Corporation 4 awardees, including Frontier Southwest Incorporated, Frontier California Inc. and The Southern New England Telephone Company Top agencies DOJ (Department of Justice)	$55,180	<0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #60 in FY2024 and not on the FY2025 list; up 37 since FY2022.
59	Administracion Nacional DE Telecomunicaciones Top agencies DOS (Department of State)	$54,813	<0.1%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #82 in FY2025; new.
60	Cable & Wireless Panama S.a. Top agencies DOS (Department of State) DHS (Department of Homeland Security)	$49,176	<0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and not on the FY2025 list; new.
61	AMG Company, Inc. Top agencies DOI (Department of the Interior)	$43,608	<0.1%	Rank history: #62 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
62	County of Kleberg Through Kleberg County Top agencies DOI (Department of the Interior)	$40,829	<0.1%	Rank history: #63 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
63	City of Gunnison Top agencies DOI (Department of the Interior)	$38,635	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
64	The South Sudanese Mobile Telephone (Zain). Co. Ltd Top agencies DOS (Department of State)	$38,588	<0.1%	Rank history: #54 in FY2021, not on the FY2022 list, #100 in FY2024 and #79 in FY2025; returned.
65	Nashoba Valley Regional Dispatch District Top agencies Army (Department of the Army)	$38,098	<0.1%	Rank history: #64 in FY2021, #64 in FY2022, #62 in FY2024 and #58 in FY2025; down 1 since FY2022.
66	Scancom PLC Top agencies USAID (US Agency for International Development)	$36,303	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Windstream BV Holdings, Inc. Through Windstream North Carolina, LLC Top agencies DOJ (Department of Justice)	$35,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	City of Port Angeles Top agencies DOI (Department of the Interior)	$34,000	<0.1%	Rank history: #66 in FY2021, #69 in FY2022, #63 in FY2024 and not on the FY2025 list; up 1 since FY2022.
69	Cavalier Telephone L.L.C. Through Paetec Communications, LLC Top agencies Navy (Department of the Navy)	$33,513	<0.1%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
70	Mcenroe Voice & Data Corporation Top agencies Navy (Department of the Navy)	$32,445	<0.1%	Rank history: #67 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
71	Infomedia Group, Inc. Top agencies HHS (Department of Health and Human Services)	$31,533	<0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2024 and #59 in FY2025; new.
72	Valley Administrative Services LLC Top agencies DOS (Department of State) Navy (Department of the Navy)	$30,396	<0.1%	Rank history: #70 in FY2021, #72 in FY2022, #83 in FY2024 and #50 in FY2025; unchanged since FY2022.
73	Baxter's Realty Inc. Top agencies DOS (Department of State)	$28,461	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Verizon Communications Inc. Through Verizon Maryland LLC Top agencies DOJ (Department of Justice)	$27,300	<0.1%	Rank history: #80 in FY2021, #86 in FY2022, #98 in FY2024 and not on the FY2025 list; up 12 since FY2022.
75	County of Clackamas Top agencies USDA (Department of Agriculture)	$23,937	<0.1%	Rank history: #75 in FY2021, #75 in FY2022, #77 in FY2024 and not on the FY2025 list; unchanged since FY2022.
76	County of Harney Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$22,400	<0.1%	Rank history: #73 in FY2021, #74 in FY2022, #79 in FY2024 and #73 in FY2025; down 2 since FY2022.
77	County of Lincoln Top agencies DOI (Department of the Interior)	$21,738	<0.1%	Rank history: #76 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
78	County of El Paso Through El Paso County Top agencies USAF (Department of the Air Force)	$20,000	<0.1%	Rank history: #78 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
79	City of Grand Junction Top agencies DOI (Department of the Interior)	$19,579	<0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2024 and not on the FY2025 list; new.
80	Telephone Answering Service of Watertown, Inc. Top agencies Army (Department of the Army)	$19,052	<0.1%	Rank history: #71 in FY2021, #82 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
81	Emergency Communications of Southern Top agencies DOI (Department of the Interior)	$18,275	<0.1%	Rank history: #83 in FY2021, #83 in FY2022, #59 in FY2024 and #80 in FY2025; up 2 since FY2022.
82	At&T Inc. 3 awardees, including At&T Mobility National Accounts LLC and At&T Enterprises, LLC Top agencies DOS (Department of State) DOJ (Department of Justice)	$16,979	<0.1%	Rank history: not on the FY2021 list, #54 in FY2022 and not on the FY2024–FY2025 lists; down 28 since FY2022.
83	County of Tooele Top agencies DOI (Department of the Interior)	$16,386	<0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and #78 in FY2025; new.
84	Synergy Group JV, LLC Top agencies HHS (Department of Health and Human Services)	$15,138	<0.1%	Rank history: not on the FY2021 list, #34 in FY2022 and not on the FY2024–FY2025 lists; down 50 since FY2022.
85	American Group Contrax, Agx-Llc Top agencies VA (Department of Veterans Affairs)	$14,957	<0.1%	Rank history: #74 in FY2021, #78 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
86	Highland Telephone Cooperative, Inc. Top agencies DOJ (Department of Justice)	$14,284	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and not on the FY2025 list; new.
87	Pro Call Center Inc. Top agencies Army (Department of the Army)	$13,050	<0.1%	Rank history: #85 in FY2021, #87 in FY2022, #97 in FY2024 and #88 in FY2025; unchanged since FY2022.
88	County of Cibola Top agencies DOI (Department of the Interior)	$12,500	<0.1%	Rank history: #86 in FY2021, #89 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
89	Vonage Holdings Corp. Top agencies DOS (Department of State)	$11,700	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
90	Sheargold Limited Top agencies DOS (Department of State)	$10,750	<0.1%	Rank history: #79 in FY2021, not on the FY2022 list, #53 in FY2024 and not on the FY2025 list; returned.
91	Calhoun County 9-1-1 District Top agencies Army (Department of the Army)	$10,242	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #65 in FY2025; new.
92	Direct Interactions Inc Top agencies Peace Corps	$9,700	<0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and #55 in FY2025; new.
93	Answer Kansas City Ltd Top agencies DOJ (Department of Justice)	$9,683	<0.1%	Rank history: #94 in FY2021, #97 in FY2022, #94 in FY2024 and #95 in FY2025; up 4 since FY2022.
94	Metropolitan Communication Services, Inc. Top agencies Commerce (Department of Commerce)	$9,600	<0.1%	Rank history: #93 in FY2021, #81 in FY2022, #70 in FY2024 and #87 in FY2025; down 13 since FY2022.
95	Cooperative Health Services Inc. Top agencies HHS (Department of Health and Human Services)	$9,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	New Orleans Teleport Inc. Top agencies Commerce (Department of Commerce)	$8,820	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and #92 in FY2025; new.
97	County of Marin Top agencies DOI (Department of the Interior)	$7,635	<0.1%	Rank history: #95 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
98	City of Sierra Vista Top agencies DOI (Department of the Interior)	$7,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	Map Communications Holdings, Inc. Top agencies DOJ (Department of Justice)	$7,007	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 6 since FY2022.
100	City of Walla Walla Top agencies VA (Department of Veterans Affairs)	$6,149	<0.1%	Rank history: #99 in FY2021, #98 in FY2022, #99 in FY2024 and #94 in FY2025; down 2 since FY2022.

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100 of 131 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 56142

Code	Net obligations	Largest contractor
561422 Telemarketing Bureaus and Other Contact Centers	$915,500,452	Maximus Inc.
561421 Telephone Answering Services	$154,802,990	Peckham Vocational Industries, Inc.

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 $1.14 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

Who were the top 10 NAICS 56142 contractors in FY2023?

1. Maximus Inc. ($795M), 2. Peckham Vocational Industries, Inc. ($109M), 3. Inspiritec Inc. ($46.8M), 4. Strategic Data Systems, Inc. ($19.9M), 5. The Bowen Consulting Group. Inc. ($18.9M), 6. Fred Hutchinson Cancer Center ($8.02M), 7. Kech Inc. ($6.61M), 8. Leidos Holdings, Inc. ($5.81M), 9. Tmax Government Solutions LLC ($4.95M), 10. Baptist Child & Family Services ($4.69M).

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