Top 42 Contractors in NAICS 56133: Professional Employer Organizations, FY2021

Name: Top 42 Contractors in NAICS 56133: Professional Employer Organizations, FY2021
Creator: GovTribe

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

The top 10 won 69% of FY2021 NAICS 56133 contract dollars

Contract obligations: $18,992,689 Net of deobligations, by contracts coded NAICS 56133 or a code under it
Contractors: 44 Parent companies with an obligation
Largest contractor: Vergence LLC $2.17 million, 10.8% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 42 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Vergence LLC Top agencies Army (Department of the Army)	$2,165,799	10.8%	Rank history: #6 in FY2022 and #3 in FY2023; up 17 since FY2020.
2	Akahi Associates LLC Top agencies USAF (Department of the Air Force)	$2,111,656	10.6%	Rank history: #1 in FY2022 and #1 in FY2023; up 33 since FY2020.
3	Myriddian, LLC Top agencies Army (Department of the Army)	$1,577,092	7.9%	Rank history: #4 in FY2022 and #6 in FY2023; up 3 since FY2020.
4	Managed Care Advisors, Inc. Top agencies Commerce (Department of Commerce)	$1,560,940	7.8%	Rank history: not on the FY2022–FY2023 lists; down 3 since FY2020.
5	The Siegel Group, LLC Top agencies Army (Department of the Army)	$1,407,447	7.0%	Rank history: #2 in FY2022 and #2 in FY2023; unchanged since FY2020.
6	T47 International, Inc. Top agencies Army (Department of the Army)	$1,244,052	6.2%	Rank history: #10 in FY2022 and not on the FY2023 list; up 1 since FY2020.
7	Interactive Government Holdings, Inc. Top agencies Army (Department of the Army)	$1,002,021	5.0%	Rank history: #3 in FY2022 and #4 in FY2023; new, not ranked in FY2020.
8	Arizona Natural Doctors, LLC Top agencies Army (Department of the Army)	$999,999	5.0%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
9	TDB Communications Inc. Top agencies Army (Department of the Army)	$884,776	4.4%	Rank history: #5 in FY2022 and #5 in FY2023; up 1 since FY2020.
10	Wits Solutions Inc. Top agencies Army (Department of the Army)	$791,043	4.0%	Rank history: #7 in FY2022 and #7 in FY2023; up 11 since FY2020.
11	Cherokee Nation Through Cherokee Nation Management & Consulting, L.l.c.. Top agencies HHS (Department of Health and Human Services)	$700,896	3.5%	Rank history: #9 in FY2022 and #10 in FY2023; new, not ranked in FY2020.
12	Advanced Technology Leaders, Inc. Top agencies Army (Department of the Army)	$660,268	3.3%	Rank history: #13 in FY2022 and not on the FY2023 list; up 2 since FY2020.
13	Corinth Consulting Group, LLC Top agencies DHS (Department of Homeland Security)	$651,298	3.3%	Rank history: #12 in FY2022 and not on the FY2023 list; down 1 since FY2020.
14	Athenix Special Missions, LLC Top agencies USSOCOM (United States Special Operations Command)	$515,054	2.6%	Rank history: not on the FY2022–FY2023 lists; down 5 since FY2020.
15	Computer Evidence Specialists, LLC Top agencies VA (Department of Veterans Affairs)	$278,823	1.4%	Rank history: #15 in FY2022 and #12 in FY2023; up 2 since FY2020.
16	Railhead, Inc. Top agencies USAF (Department of the Air Force)	$250,000	1.2%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
17	Broadleaf, Inc. Top agencies Army (Department of the Army)	$225,404	1.1%	Rank history: #18 in FY2022 and not on the FY2023 list; down 9 since FY2020.
18	Medical X-Ray Staffing Solutions Inc. Top agencies Army (Department of the Army)	$201,051	1.0%	Rank history: #17 in FY2022 and #18 in FY2023; up 2 since FY2020.
19	Terra Firma Solutions Incorporated Top agencies Army (Department of the Army)	$135,964	0.7%	Rank history: #20 in FY2022 and #19 in FY2023; up 5 since FY2020.
20	Totally Joined for Achieving Collaborative Techniques (Tjfact), LLC Top agencies HHS (Department of Health and Human Services)	$120,690	0.6%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
21	Montech Inc. Top agencies USAF (Department of the Air Force)	$108,840	0.5%	Rank history: #19 in FY2022 and #17 in FY2023; new, not ranked in FY2020.
22	China Way Logistics Co., Ltd Top agencies DOS (Department of State)	$106,273	0.5%	Rank history: #31 in FY2022 and not on the FY2023 list; new, not ranked in FY2020.
23	Mind Your Business Inc. Top agencies DLA (Defense Logistics Agency)	$84,558	0.4%	Rank history: not on the FY2022–FY2023 lists; up 7 since FY2020.
24	The Ar Group, LLC Top agencies DLA (Defense Logistics Agency)	$73,442	0.4%	Rank history: #33 in FY2022 and not on the FY2023 list; up 2 since FY2020.
25	HR Anew, Inc. Top agencies DLA (Defense Logistics Agency)	$73,280	0.4%	Rank history: not on the FY2022–FY2023 lists; unchanged since FY2020.
26	Martin - Miser Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$72,878	0.4%	Rank history: not on the FY2022–FY2023 lists; up 3 since FY2020.
27	ETG Staging Connections (CHINA) Company Limited Through Encore Technology (Beijing) Co.,Ltd. Top agencies DOS (Department of State)	$68,685	0.3%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
28	Bratslavsky Consulting Engineers, Inc. Top agencies GSA (General Services Administration)	$46,441	0.2%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
29	Santa FE Relocation Service GES.M.B.H. Through Santa Fe Relocation Services Co., Ltd. Top agencies DOS (Department of State)	$36,528	0.2%	Rank history: #26 in FY2022 and not on the FY2023 list; new, not ranked in FY2020.
30	The Leland Stanford Junior University Top agencies GSA (General Services Administration)	$35,000	0.2%	Rank history: #25 in FY2022 and #23 in FY2023; up 7 since FY2020.
31	Global Empire LLC Top agencies DOJ (Department of Justice)	$27,506	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
32	The O.k. Design Group S.r.l Top agencies Navy (Department of the Navy)	$26,640	0.1%	Rank history: not on the FY2022–FY2023 lists; unchanged since FY2020.
33	Tongzhou Construction General Contracting Group Co.,Ltd. Top agencies DOS (Department of State)	$26,078	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
34	Beijing Telecom Engineering Bureau Co. Ltd Top agencies DOS (Department of State)	$19,742	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
35	ADC Management Services, Inc. Top agencies USAF (Department of the Air Force)	$15,293	0.1%	Rank history: not on the FY2022–FY2023 lists; down 7 since FY2020.
36	Owl Cyber Defense Solutions LLC Through Trident Systems LLC Top agencies Navy (Department of the Navy)	$15,046	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
37	Chaski Global LLC Top agencies MCC (Millennium Challenge Corporation)	$14,500	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
38	Johnson Controls Building Automation Systems, LLC Top agencies DOS (Department of State)	$13,958	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
39	Interamerican Accreditation Cooperation, A.C. Top agencies Commerce (Department of Commerce)	$11,584	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
40	Ram Engineering Solutions Corp Top agencies DOS (Department of State)	$11,557	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.
41	Clinical and Laboratory Standards Institute, Inc. Top agencies Commerce (Department of Commerce)	$11,000	0.1%	Rank history: #29 in FY2022 and #26 in FY2023; unchanged since FY2020.
42	Beijing Empower Consulting Co., Ltd. Top agencies DOS (Department of State)	$10,031	0.1%	Rank history: not on the FY2022–FY2023 lists; new, not ranked in FY2020.

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42 of 44 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 56133

Code	Net obligations	Largest contractor
561330 Professional Employer Organizations	$18,992,689	Vergence 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 $20 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

Who were the top 10 NAICS 56133 contractors in FY2021?

1. Vergence LLC ($2.17M), 2. Akahi Associates LLC ($2.11M), 3. Myriddian, LLC ($1.58M), 4. Managed Care Advisors, Inc. ($1.56M), 5. The Siegel Group, LLC ($1.41M), 6. T47 International, Inc. ($1.24M), 7. Interactive Government Holdings, Inc. ($1M), 8. Arizona Natural Doctors, LLC ($1M), 9. TDB Communications Inc. ($885K), 10. Wits Solutions Inc. ($791K).

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