Administration of Human Resource Programs (U.S.) — NAICS 9231

A rollup investor's primer for the four-digit NAICS industry group that sits above codes 92311, 92312, 92313, and 92314. Written for both public-market and private investors. It synthesizes the four child primers plus our ground-truth federal statistics for this level.

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1. Overview

NAICS — the North American Industry Classification System — is the U.S. government's standard scheme for grouping the economy into industries. Industry group 9231, Administration of Human Resource Programs, sits inside Sector 92 (Public Administration). It is the layer of government that administers the country's people-facing programs: schooling, public health, income support and social insurance, and veterans' benefits [1]. These are government functions, not commercial markets — the establishments inside 9231 are tax-funded agencies that earn no profit and issue no shares [1][2].

That single fact governs the whole group, so read it once here and it applies to all four children: you cannot buy any industry in 9231 directly. What makes the group investable is what sits beneath the agencies — an enormous flow of program dollars (measured in the trillions across the four children) and a shared layer of private contractors the agencies pay to run pieces of the work: eligibility and claims processing, information-technology (IT) modernization, software, disability exams, curriculum and assessment, loan servicing, and health-network administration. Investors reach 9231 indirectly, through that contractor ecosystem.

The distinctive value of looking at the group rather than a single child is the contrast across the four — how much money each administers, which way each is heading (several are in active federal retrenchment; one has a demographic tailwind), who owns the private proxies, and — the key rollup insight — how the investable exposure collapses onto the same small set of government-services primes that recur in child after child.

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2. What's inside — the four child industries and how they differ

Industry group 9231 splits into four five-digit NAICS industries [1]. Each happens to contain exactly one six-digit "national industry," so each five-digit code is effectively identical to its single child:

How they differ — the contrast table

This is the heart of a rollup. The four children administer wildly different amounts of money, are moving in different directions, and — though their vendor rosters overlap heavily — carry different investable "flavors."

Read the table this way. By dollars administered, the group is heavily top-loaded onto 92313 (income support/social insurance) — Social Security alone dwarfs the other three combined — with education second, veterans third, and public health the smallest [9][10]. By direction, education and public health are the group's shrinking corners (active 2025 federal retrenchment), while income support has the clearest structural tailwind and veterans' affairs is a workload-up / headcount-down cross-current [15][17][19][20]. And by ownership, each child has its own tilt — education is the most PE-heavy and fragmented, public health is the most payer-heavy, veterans' affairs is the most defense-adjacent — even though, as Section 4 shows, the same contractors keep reappearing underneath all of them.

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3. Size — this level's rollup figures (and an honest caveat)

Our ground-truth statistics file for NAICS 9231 contains no ingested metrics. We therefore state no establishment, employment, payroll, or revenue total for the four-digit group as a whole, and we invent no figure to fill the gap.

That gap is not sloppiness — it is structural, and it is the single most important measurement fact about this group. The standard federal business statistics an investor reaches for — the Economic Census, County Business Patterns (CBP), and the Statistics of U.S. Businesses (SUSB) behind Small Business Administration counts — exclude Public Administration (Sector 92) and government establishments almost entirely, because they measure private employers [2]. So the usual "undercount of tiny operators" caveat does not apply here; instead the distortion is a near-total exclusion — these industries are governments, not small businesses, and standard business data shows essentially zero firms and zero payroll for them. Separately, the private vendors that serve these programs are scattered across other NAICS codes (IT, consulting, insurance, mortgage), so no single dataset captures the commercial market either.

The one government-payroll source that reaches this detail is the Bureau of Labor Statistics' Quarterly Census of Employment and Wages (QCEW). Of the four children, our sources carry QCEW figures only for 92313:

NAICS 923130 = 92313, 2024 annual averages (QCEW) [5]:

For the other three children, our sources report budget and program proxies rather than NAICS-coded employment, so a clean, apples-to-apples 9231 employment or payroll rollup cannot be stated from our ground truth without estimating — which we will not do. What we can say honestly, drawn from the children:

• The program dollars this group administers run to the multiple trillions per year — roughly $1.47 trillion in Social Security benefits [10], ~$1.0 trillion in public K-12 spending [7], ~$400 billion in VA budget [11], and ~$160 billion in governmental public-health activity [9]. Measured by money stewarded, 9231 is one of the largest functions in the entire federal–state–local system.
• As a "business," by contrast, it is small — a few thousand establishments and administrative headcount in the low hundreds of thousands per child at most. The gap between "tiny as a business, gigantic as a steward of capital" is the defining feature of the whole group.

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4. Investable universe — where value concentrates across the children

There is no public company that is a human-resource-program agency; the agencies cannot be bought. Exposure comes only through the contractor layer — and the rollup insight is that that layer is remarkably concentrated, and the same names cut across the children. A handful of government-services primes appear again and again:

• Maximus (NYSE: MMS) is the closest thing to a group-wide proxy — it shows up as a lead proxy in all four children (student-loan servicing, public-health BPO, human-services eligibility, VA disability exams) [21].
• Guidehouse (owned by Bain Capital), Gainwell Technologies (Veritas Capital), Booz Allen Hamilton (NYSE: BAH), Leidos (NYSE: LDOS), Accenture (NYSE: ACN), Conduent (Nasdaq: CNDT), and Tyler Technologies (NYSE: TYL) each recur across two, three, or all four children [22][23][24].

Around that shared core, each child adds its own specialist names:

• 92311 Education — loan servicers Nelnet (NYSE: NNI); administrative/ERP (enterprise-resource-planning) and student-information software (Roper/Frontline, Tyler); curriculum and assessment (Stride (NYSE: LRN), Pearson, McGraw Hill). The purest software plays are PE-owned: PowerSchool (Bain), Instructure (KKR/Dragoneer), Renaissance, Ellucian [25][26]. This is the most fragmented, most PE-heavy child.
• 92312 Public Health — the Medicaid managed-care "Big Five" insurers (Centene, Elevance, Molina, UnitedHealth, CVS/Aetna); diagnostics labs (Labcorp, Quest); vaccine makers (Pfizer, Merck, GSK, Sanofi, Moderna); plus private roll-ups Gainwell, Merative (Francisco Partners) [27].
• 92313 Income support — ICF International (Nasdaq: ICFI) consulting; private specialists Acentra Health (Carlyle) alongside Gainwell and Guidehouse [24].
• 92314 Veterans' affairs — federal-IT/defense primes (Leidos, SAIC, Booz Allen); the electronic-health-record (EHR) prime Oracle (NYSE: ORCL); VA-loan mortgage lenders (Rocket, UWM, PennyMac); private operators TriWest, Peraton, Veterans United [28].

For every one of these names, human-resource-program administration is one diluted slice of a broader business, not the whole company. The practical portfolio takeaway: 9231 exposure is best built as a basket weighted toward the shared primes (Maximus above all), with child-specific names layered on where an investor wants a particular tilt (Medicaid insurers for public health, mortgage lenders for veterans, ed-tech for education).

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5. How the money works

Read the economics in two layers — the same structure in every child.

The agencies are budget-funded, not profit-seeking. Their money comes from dedicated payroll taxes (Social Security and disability run on the Federal Insurance Contributions Act, or FICA, tax; unemployment insurance on federal/state unemployment taxes), federal grants, and annual appropriations [5][10]. They are judged on how efficiently they move money, not on margins — SSA administers ~$1.47 trillion in benefits on roughly a 1% administrative-cost ratio, a permanent squeeze that pushes work out to contractors [10]. Do not apply regulated-utility rate base, real-estate funds-from-operations, or mining cost-curve language here — none of it fits a tax-funded agency.

Investors earn returns one layer down, through government business-process outsourcing (BPO) and software economics. Vendors monetize via fixed-price or cost-reimbursement contracts, per-case/per-claim/per-exam fees, per-member-per-month administration fees (in Medicaid work), software-as-a-service (SaaS) subscriptions, and mortgage origination/servicing income (in veterans' loans). The unit economics that matter across the group are backlog and revenue visibility, book-to-bill (new orders versus revenue), recompete win/retention rates, contract mix, and cash conversion — plus, for the Medicaid insurers in 92312, insurance metrics (capitation, medical-loss ratio, enrollment). The demand engine underneath all of it is compliance and caseload: every mandate to test, report, insure, or pay creates administrative work the agencies buy help to handle.

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6. Demand drivers

The four children share a common set of forces (developed in each child primer):

• Demographics — an aging population steadily lifts Social Security and disability caseloads (~68.5 million beneficiaries by December 2024) [10]; enrollment and the veteran count move education and VA workload in the other direction.
• The economic cycle — income-support programs are automatic stabilizers; recessions spike unemployment and welfare caseloads exactly when tax revenue falls.
• Legislation and eligibility changes — new mandates create workload surges: the veterans' PACT Act (2022 toxic-exposure law) drove record claims volume [19]; Medicaid work requirements and redeterminations add human-services work [17]; education accountability rules drive testing and reporting.
• IT-modernization backlogs — decades-old government systems across all four children sustain durable software and integration demand.
• Program integrity, artificial intelligence (AI), and cybersecurity — fraud/improper-payment controls, AI automation of routine casework, and rising data-security spend are cross-cutting tailwinds.
• Budgets and the appropriations cycle — the master switch. Appropriations set the ceiling; tight budgets can cut agency headcount but often increase outsourcing.

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7. Regulation

At this level the industry group largely is the regulator: each child administers federal law rather than being policed by an outside body. Governing statutes differ by child — the Elementary and Secondary Education Act and the Family Educational Rights and Privacy Act (FERPA) for education [29]; public-health "police powers" held by the states, with CDC standards and grants for public health; the Social Security Act and Workforce Innovation and Opportunity Act for income support; Title 38, the MISSION Act, and the PACT Act for veterans [5][6][19] — but the vendor-facing compliance regime is shared: the Federal Acquisition Regulation (FAR) governs contracting [30], and because these systems hold vast personally identifiable information (PII) and protected health information (PHI), vendors are bound by the Health Insurance Portability and Accountability Act (HIPAA), the Privacy Act of 1974, the Federal Risk and Authorization Management Program (FedRAMP), and Section 508 accessibility rules [31]. Compliance is both a barrier to entry and a source of liability.

A defining recent theme spans two of the children: 2025 federal retrenchment. An executive order and a July 2025 Supreme Court decision cleared the way to dismantle the Department of Education and push administration to the states [15][16]; the same year, the federal government proposed a ~53% CDC cut, ~10,000 HHS layoffs, and a ~$11.4 billion clawback of pandemic public-health grants [17][18]. The direction of travel is a smaller federal footprint and more reliance on uneven state and local budgets — the single biggest live policy variable for the group.

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8. Consolidation

There is no competition among the agencies — each holds a defined jurisdiction or a legal monopoly (only the VA can grant federal veterans' benefits; only SSA runs Social Security). Two consolidation stories run underneath:

• On the government side, the long-run trend is fewer, larger administrative units — school-district counts have fallen for decades, there is an active debate about regionalizing the ~2,800-department public-health patchwork, and 2025 federal retrenchment pushes responsibility down to states [13][15].
• On the vendor side, consolidation is intense and private-equity-led, and it is the same handful of sponsors across children: Bain Capital's ~$5.3 billion purchase of Guidehouse [24], Veritas Capital's Gainwell roll-up [23], Carlyle's Acentra, and Bain/KKR/Blackstone/Vista ownership of the education-software leaders [25][26]. In veterans' affairs the VA is collapsing its community-care network from five regions to two (contracts worth up to $1 trillion over ten years) and has concentrated disability exams into four firms [28]. The moat in every case is switching cost plus procurement friction — documented past performance, security clearances, and the balance sheet to absorb fixed-price implementation risk favor incumbents.

The perennial swing factor across all four children is the government's make-versus-buy choice: the more agencies outsource, the larger the private revenue pool.

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9. Risks

The risk map is common to the group, led by:

• Political, budget, and appropriations risk — the master risk. Elections and appropriations set the entire group's budget; the 2025 dismantling of ED and the proposed CDC cuts are live examples [15][17]. Federal administrative employment in the income-support child already fell 2.0% in 2024 [5].
• Customer concentration and recompete risk — the vendors' sole customer is, in effect, the U.S. government; contract losses on rebid are the dominant equity risk [21][22].
• Cybersecurity and data-privacy risk — these vendors are custodians of enormous PII/PHI troves under FERPA/HIPAA/the Privacy Act; a breach is a material, headline event [31].
• Execution and fixed-price margin risk — large system implementations can overrun.
• Private-equity leverage — the multi-billion-dollar buyouts of category leaders carry balance-sheet risk.
• Structural demand shifts — flattening K-12 enrollment and a slowly declining veteran population are long-run headwinds in two children [20], even as demographics lift income-support caseloads in another.
• Measurement risk — as Section 3 shows, there is no clean federal NAICS revenue or employment denominator for most of the group, which complicates sizing and comparison.

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10. How to invest & outlook

No pure-play exists at any level of 9231. You invest in whoever the agencies pay to run the programs. The most efficient approach mirrors the rollup insight of Section 4: build a basket anchored on the shared government-services primes — Maximus (MMS) above all, plus Conduent (CNDT), Booz Allen (BAH), Leidos (LDOS), Accenture (ACN), and Tyler (TYL) — then layer on child-specific tilts:

• Education — loan servicers (Nelnet), education software (Tyler, Roper), curriculum/assessment (Stride, Pearson, McGraw Hill); school-district municipal bonds for tax-exempt fixed income; PE funds for the software leaders.
• Public health — the Medicaid managed-care insurers (Centene, Elevance, Molina, UnitedHealth, CVS) plus diagnostics and vaccine makers.
• Income support — Maximus and Conduent carry the most contract-volume sensitivity; ICF adds consulting; adjacent workers'-comp and disability insurers give demand-linked exposure.
• Veterans' affairs — federal-IT/defense-services names, the EHR prime Oracle, and VA-loan mortgage lenders (Rocket, UWM, PennyMac).

Private-market routes are the same across children: private-equity and private-credit ownership of the specialist vendors (Veritas/Gainwell, Bain/Guidehouse, Carlyle/Acentra, and the education sponsors), secondaries, and direct government contracting. There is no dedicated exchange-traded fund (ETF) for 9231; diversified government-services and defense exposure is the closest packaged proxy. In diligence, weigh funded backlog rather than headline contract ceilings, contract type, recompete schedule, customer concentration, cash conversion, leverage, and cybersecurity controls — and remember that human-resource-program work is a minority of every listed name's revenue.

Outlook. The group is a defensive, policy-driven demand pool: the money it administers is huge and durable, but the terms are set by governments, not markets, so political risk is the price of admission. The near-term picture is genuinely split across the children — education and public health face active federal retrenchment [15][17], veterans' affairs is workload-up but headcount-down [19][20], and income support has the clearest structural tailwind from aging demographics and aging IT [10]. Net: a recession-tested demand base with meaningful budget and political risk — attractive as disciplined, basket-level contractor exposure, uninvestable as a sector on its own. For the complete company tables and catalyst detail, read each child primer (92311, 92312, 92313, 92314) and, beneath them, the six-digit primers they point to.

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Sources

Drawn from the four child primers (92311, 92312, 92313, 92314); each figure is cited in full in the relevant child primer and its six-digit primer.

1. U.S. Census Bureau. "2022 NAICS — Sector 92 (Public Administration) and Industry Group 9231 structure." 2022. https://www.census.gov/naics/?details=92&year=2022
2. U.S. Census Bureau. Program-coverage notes confirming Public Administration (Sector 92) exclusion — Economic Census "Understanding NAICS," County Business Patterns methodology, and "About Statistics of U.S. Businesses." 2022–2026. https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html
3. U.S. Department of Education / CCSSO. "State Authority over ESSA Programs" (ED; 50 SEAs; district LEAs); NCES operating-agency counts (~19,200; 49.5M students). 2020–2024. https://www.ed.gov/sites/ed/files/2020/10/ccsso_state_authority_over_essa_programs.pdf
4. NACCHO and ASTHO. "National Profile of Local Health Departments" (~2,800 LHDs) and "About Us" (59 state/territorial health agencies); CDC as federal lead. 2020–2024. https://www.naccho.org/resources/lhd-research
5. U.S. Bureau of Labor Statistics. "Quarterly Census of Employment and Wages (QCEW), 2024 Annual Averages — NAICS 923130, national by ownership" (7,567 establishments; 418,697 employment; ~$33.95B wages; federal −2.0%). 2025. https://data.bls.gov/cew/data/api/2024/a/industry/923130.csv
6. U.S. Department of Veterans Affairs. "Administrations and Offices" (VHA/VBA/NCA structure). 2026. https://department.va.gov/administrations-and-offices/
7. EducationData.org / NCES and Reason Foundation. "U.S. Public Education Spending" (~$946.5B FY2023; ~$1.0T in 2023-24; per-pupil ~$16,526). 2024–2025. https://educationdata.org/public-education-spending-statistics
8. U.S. Department of Education / USAspending Agency Profile (~$268B FY2024 outlays). 2024. https://www.usaspending.gov/agency/department-of-education
9. KFF. "Health Policy 101: U.S. Public Health — Public Health Funding" (citing CMS National Health Expenditure Accounts): ~$160B in 2023, 3.3% of ~$4.87T; ~$240B 2020 peak. 2024. https://www.kff.org/other-health/health-policy-101-u-s-public-health/
10. Social Security Administration. "Fast Facts & Figures About Social Security, 2024" (OASDI benefits ~$1,471.4B in 2024; 68.5M beneficiaries) and "Budget Overview FY2024" (~$15.5B admin ≈ ~1% cost ratio). 2024–2025. https://www.ssa.gov/policy/docs/chartbooks/fast_facts/2024/fast_facts24.html
11. Congressional Research Service and The American Legion. "VA FY2026 Appropriations" ($434.8B request) and "VA budget tops $400 billion for 2025." 2025–2026. https://www.congress.gov/crs-product/R48968
12. U.S. Department of Veterans Affairs. "VA reduces backlog … " (FY2025: 3,001,734 claims processed; ~$195B paid to 6.9M+ beneficiaries). 2025. https://news.va.gov/press-room/va-reduces-backlog-of-veterans-waiting-for-va-benefits-by-57/
13. American Journal of Public Health (Leider et al.). "Enumeration 2024: The Governmental Public Health Workforce" (~239,000 in 2022). 2025. https://ajph.aphapublications.org/doi/full/10.2105/AJPH.2024.307960
14. Veterans Benefits Administration. "About VBA" (~32,000 employees; 56 regional offices). 2024. https://www.benefits.va.gov/benefits/about.asp
15. CNBC / Chalkbeat / SCOTUSblog. "Trump signs executive order to dismantle the Department of Education" (March 20, 2025) and "Supreme Court clears the way … McMahon v. New York" (July 14, 2025, 6-3). 2025. https://www.chalkbeat.org/2025/07/14/us-supreme-court-allows-education-department-layoffs-to-proceed/
16. U.S. Government Accountability Office. "K-12 Education: School Districts Reported Spending Initial COVID Relief Funds" (ARP ESSER obligation deadline Sept. 30, 2024 — the post-pandemic funding cliff). 2024. https://www.gao.gov/products/gao-24-106913
17. Trust for America's Health and CMS. "Public Health Infrastructure in Crisis" (proposed ~53% CDC cut; ~10,000 HHS layoffs) and "Medicaid Work Requirements" framework (P.L. 119-21). 2025–2026. https://www.tfah.org/report-details/funding-report-2025/
18. Fierce Healthcare / NBC News. "States Win Injunction Against HHS' $11B Clawback of COVID-19, Public Health Grants." 2025. https://www.fiercehealthcare.com/regulatory/cdc-doge-claws-back-covid-19-grants-headed-states
19. U.S. Department of Veterans Affairs. PACT Act Dashboard (1.9M+ approved claims) and MISSION Act / Title 38 governing framework. 2024–2025. https://www.va.gov/resources/the-pact-act-and-your-va-benefits/
20. U.S. Department of Veterans Affairs, VetPop2023 (17.9M living veterans FY2024 → 11.2M FY2053) and Federal News Network (~30,000 VA jobs cut in FY2025). 2024–2025. https://www.va.gov/vetdata/veteran_population.asp
21. Maximus, Inc. Form 10-K FY2025 (U.S. Services ~$1.76B ≈ 32% of revenue; backlog >$20B; Aidvantage student-loan servicing; VA disability exams). https://www.sec.gov/Archives/edgar/data/1032220/000103222025000053/mms-20250930.htm
22. Conduent Incorporated, Booz Allen Hamilton, Leidos, and Accenture — public government-services and IT primes recurring across the children (SEC Form 10-K filings). 2024–2026. https://www.sec.gov/Archives/edgar/data/1677703/000167770326000024/cndt-20251231.htm
23. Gainwell Technologies. "Our History" (Veritas Capital; DXC carve-out; HMS acquisition) — Medicaid and human-services systems roll-up. 2026. https://www.gainwelltechnologies.com/our-history/
24. Guidehouse. "Guidehouse Completes Transaction with Bain Capital" (~$5.3B, Dec. 2023); Carlyle/Acentra Health; ICF International Form 10-K. 2023–2025. https://guidehouse.com/news/corporate-news/2023/guidehouse-completes-transaction-with-bain-capital
25. Bain Capital / Instructure / K-12 Dive. "Bain Capital Completes Acquisition of PowerSchool" (~$5.6B, 2024) and "KKR and Dragoneer Complete Acquisition of Instructure" (~$4.8B, 2024). 2024. https://www.k12dive.com/news/powerschool-private-bain-capital-deal/718710/
26. Nelnet, Inc. Form 10-K FY2024 (serviced ~$526.6B for 15.5M borrowers) and Stride, Inc. Form 10-K FY2025; Renaissance (Francisco Partners/Blackstone) and Ellucian (Blackstone/Vista) ownership. 2024–2025. https://www.sec.gov/Archives/edgar/data/1258602/000125860225000014/nni-20241231.htm
27. Georgetown Center for Children and Families. "Medicaid Managed Care: The Big Five" (Centene, Elevance, Molina, UnitedHealth, CVS/Aetna); Labcorp/Quest and vaccine-maker exposure. 2025. https://ccf.georgetown.edu/2025/02/27/medicaid-managed-care-the-big-five-in-q4-2024/
28. Military Officers Association of America and claim.vet. "VA to Reorganize Community Care Contracts, Reducing Regions to 2" (up to $1T over 10 years) and "VA C&P Exam Contractors" (four firms; 93% of exams outsourced by 2024); Oracle EHR prime; GAO on VA IT contracting (>$25B FY2017–FY2021). 2022–2025. https://www.moaa.org/content/publications-and-media/news-articles/2025-news-articles/health-care-and-earned-benefits/va-to-reorganize-community-care-contracts,-reducing-regions-to-2/
29. U.S. Department of Education and FTC. "What Is the Every Student Succeeds Act?", FERPA, and COPPA guidance. 2024. https://studentprivacy.ed.gov/faq/which-educational-agencies-or-institutions-does-ferpa-apply
30. Acquisition.gov. "Federal Acquisition Regulation" — Part 6 (Competition), Part 16 (Types of Contracts), Part 49 (Termination); GAO "Bid Protests: Key Features and Trends." 2025–2026. https://www.acquisition.gov/far/part-16
31. U.S. Department of Health and Human Services, Department of Justice, FedRAMP, and Section508.gov. HIPAA "Covered Entities and Business Associates," Privacy Act of 1974, FedRAMP authority, and Section 508 accessibility laws. 2024–2026. https://www.hhs.gov/hipaa/for-professionals/covered-entities/index.html