Waste Management and Remediation Services (U.S.) — NAICS 562

A rollup primer for a general investing audience — relevant to both public-market and private investors. This is the North American Industry Classification System (NAICS) 2022 three-digit subsector 562, "Waste Management and Remediation Services," which sits inside sector 56 (Administrative and Support and Waste Management and Remediation Services). Unlike a four-digit group with a single child, this subsector contains three genuinely different industry groups — collecting waste (5621), disposing of it (5622), and the specialty cleanup-and-sorting services around it (5629) — so the real value of this page is the contrast across the three. It synthesizes the three child primers plus our ground-truth federal statistics for this level; it does not re-research from scratch.[1][5][6][7]

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1. Overview

NAICS 562 is the whole American "what happens to waste" economy in one code — the trucks that pick it up, the permitted sites that bury or burn it, and the specialty crews that clean up contamination and sort recyclables. Roughly $138 billion of measured private-employer revenue and half a million paid workers move through it each year, and it is one of the most defensive, infrastructure-like, regulation-driven corners of the market: waste keeps arriving in booms and busts alike, and the law both creates the demand (you cannot legally dump waste elsewhere) and blocks new competition (almost no new landfills or incinerators get permitted).[1][3]

But "waste management" is not one business — it is three, with very different economics:

• Collection (5621) is an intensely local, route-density business — a truck, a container, and a route — won or lost on cost per stop.[5]
• Treatment & disposal (5622) is a scarce-permitted-asset business — landfills and incinerators that sell disposal capacity per ton and earn near-pure margin on every extra ton.[6]
• Remediation & other services (5629) is an engineering-and-field-services business — cleaning up contamination, sorting recyclables, and pumping tanks — with no clean listed pure-play anywhere in it.[7]

The through-line an investor should hold onto: a small set of the same large companies — the integrated solid-waste majors plus a couple of hazardous-waste specialists — straddle all three groups, which is why Wall Street trades them as one "environmental services" theme even though the three codes have distinct economics. Everything else is thousands of private operators and a growing layer of private-equity (PE) consolidators.[5][6][7]

2. What's inside — the three groups, and how they differ

NAICS is a nested hierarchy: subsector 562 splits into three four-digit industry groups, each of which drills down into five- and six-digit industries. The three groups are not variations on one theme — they differ sharply in size, firm size, capital intensity, concentration, growth direction, and how an investor gets exposure. That contrast is the point of this page.

(Share figures are each group's slice of the 562 level, from our ground-truth federal file. "Direction of travel" is a qualitative read drawn from the child primers — the federal data carry no growth rate, so those are judgments, not official statistics. Tickers are held for §4 and §10 per house style.)

Reading the contrast — five things stand out:

1. Collection is the volume leader; disposal is the profit engine. Collection is over half the subsector's revenue and employment, but disposal — despite being the smallest group by revenue — is where the highest margins and the scarce, permit-protected assets sit. The majors are integrated across both precisely to capture the disposal margin.[5][6]

2. The three groups have opposite firm profiles. Disposal has the fewest firms and the largest average size (~$15M receipts/firm) because you cannot run a landfill from a pickup truck. Remediation-and-other has the most firms and the smallest average (~$3.6M) because it is thousands of local cleanup, sorting, and septic operators. Collection sits in between.[5][6][7]

3. Concentration runs backwards from what you'd guess. Collection — the "commodity garbage truck" business — is the most concentrated group (Herfindahl-Hirschman Index, or HHI, of 580.5), while remediation-and-other is the least concentrated in the entire subsector (HHI 27.1). Disposal sits between. The reason: collection has been rolled up for decades by a few national integrators, while remediation-and-other pools three distinct sub-markets (cleanup, recycling sorting, field services) that no single firm dominates.[5][6][7]

4. Revenue per worker flags the capital-and-commodity story. Disposal's ~$396k revenue per employee is the highest — a signal of asset-heavy, energy-and-credit-earning sites, not labor-heavy service. Remediation-and-other's ~$244k is the lowest, reflecting its bodies-trucks-and-routes character.[6][7]

5. The same few companies appear in all three. The integrated majors anchor collection and the landfill core of disposal and the recycling-sorting slice of remediation-and-other; a hazardous specialist appears in both disposal and cleanup. That overlap — not a shared code — is what makes "environmental services" a single investable theme.[5][6][7]

3. Size — the subsector as a whole

These are the ground-truth federal figures for NAICS 562, from our ingested statistics. Note the mixed vintages: receipts, firm counts, and concentration are from the 2022 Economic Census (EC); establishments, employment, and payroll are from County Business Patterns (CBP) 2023. Treat them as two snapshots, not one series.[1]

(A concentration ratio such as CR4 is the combined revenue share of the largest 4 firms. The HHI is a standard 0–10,000 concentration gauge; U.S. antitrust agencies treat anything under ~1,000–1,500 as "unconcentrated." CR4 and HHI are defined here on first use.)[12]

The children tie out — a clean cross-check. Receipts ($72.6B + $24.8B + $41.1B = $138.4B), establishments (13,064 + 3,326 + 12,847 = 29,237), employment (263,050 + 62,599 + 168,215 = 493,864), and payroll (~$18.5B + ~$5.1B + ~$12.0B ≈ $35.6B) sum to the subsector exactly.[5][6][7] The only gap is firm count: the three groups sum to 21,950 versus the level's 21,788, because a handful of firms operate in more than one group and are counted once per group but deduplicated at the subsector level.

Concentration is a pooling illusion — twice over. The subsector HHI of 293.3 looks unconcentrated, and it is lower than two of its three children (collection 580.5, disposal 537) even though those children are more concentrated. Combining three distinct markets mechanically lowers measured concentration, because a firm that is large within collection is small in the combined three-group total. And even the children's national ratios understate reality: waste is a local business, so within a given metro, collection is often a near-duopoly and a single landfill behaves as a local near-monopoly regardless of the national figure.[5][6][7][12]

Undercount caveat — read before quoting $138 billion. These are employer-business statistics: CBP and the Economic Census count only establishments and firms with paid employees. They systematically miss activity that matters more here than in most sectors, and the gaps differ by group:

• Government does an enormous share directly. City and county sanitation departments run their own collection crews (5621); a large share of active municipal landfills and many publicly owned waste-to-energy plants sit outside the receipts figure (5622); public-works crews clean catch basins and run some recycling plants in-house (5629); and the U.S. Department of Energy's (DOE) Environmental Management program — roughly $8 billion a year, the world's largest cleanup effort — funds remediation through federal and professional-services codes, not "Remediation Services."[6][7][9][13]
• No-payroll owner-operators are excluded — the many one-truck haulers, septic pumpers, and small cleanup contractors tracked separately as nonemployers. Our 562 file carries no nonemployer total, so none is stated.[9]
• Integrated firms book revenue across adjacent codes (collection, disposal, remediation, recycling), so no single-NAICS figure captures the full economics around any one activity.[6][7]

Because of these gaps, the $138.4 billion is best read as the measured private-employer core — a solid floor, not a ceiling. For scale context, narrower private trackers that define "waste and recycling" without the large remediation slice put that market above $100 billion; our subsector figure is higher mainly because it includes ~$41 billion of remediation-and-other services.[14] Our federal file carries no tonnage, pricing, margin, capacity, or growth figure — so a sound thesis rests on company- and asset-level economics, not an invented national growth rate.

4. Investable universe — where value concentrates across the groups

The single most important fact for a public-market investor: no listed company maps cleanly to NAICS 562 or to any of its three groups. The listed names are diversified operators; each group is a segment inside a broader business. Value concentrates in a handful of places, and the same names recur:

• The integrated solid-waste majors are the center of gravity — Waste Management (NYSE: WM), Republic Services (NYSE: RSG), Waste Connections (NYSE/TSX: WCN), GFL Environmental (NYSE/TSX: GFL), and Casella Waste Systems (Nasdaq: CWST). Each spans collection and the landfill profit core and a recycling-sorting slice — so owning one is a bet on waste and environmental services broadly, with the disposal margin, not the collection revenue, doing most of the work.[5][6][7]
• Hazardous and cleanup exposure runs through a specialist: Clean Harbors (NYSE: CLH) is the closest thing to a pure-play in hazardous disposal and industrial/field services, with Veolia the international alternative on the hazardous side.[6][7]
• The engineering/federal-cleanup end of remediation shows up in Tetra Tech (Nasdaq: TTEK) and the federal engineers (AECOM, Jacobs, Fluor, Amentum) that win DOE nuclear-cleanup joint ventures; the septic/drain corner touches Chemed (NYSE: CHE) via Roto-Rooter.[7]
• A sector ETF — VanEck Environmental Services (NYSE Arca: EVX), an exchange-traded fund (ETF) — bundles the listed solid-waste names for one-ticket exposure.[5]

Below the listed names sits the far larger private and PE-backed universe — family haulers, environmental contractors, MRF operators (Recology, Rumpke, Lakeshore Recycling), and field-service roll-ups (Wind River Environmental, United Site Services, Superior Environmental Solutions) — plus the government operations you cannot invest in at all. The rule across the whole subsector: never apply a large company's overall valuation to a small, undisclosed specialty line, and read segment reporting, disposal access, and utilization before attributing value to any 562 activity.[5][6][7]

5. How the money works

The three groups earn money in three different shapes, and the differences drive the concentration and ownership profiles seen in §2:

• Collection (5621) runs on route density. A truck and driver are a fixed daily cost, so the more stops or tons per route-hour, the lower the cost per pickup — and an incumbent serves a new customer on an existing route at almost pure margin. Recurring subscription and municipal contracts with Consumer Price Index escalators and fuel surcharges let operators push price above inflation, the single biggest profit driver.[5]
• Disposal (5622) runs on utilization of a permitted asset. Customers pay a gate/tipping fee per ton; because a landfill or incinerator is a high-fixed-cost asset, every ton above breakeven is nearly pure margin, so utilization is the master metric and the permit is the moat. A secondary energy-and-credit line (landfill-gas and digester renewable natural gas, or RNG; waste-to-energy electricity; environmental credits) is high-margin and policy-dependent. The offset is decades of closure and post-closure liability.[6]
• Remediation-and-other (5629) is engineering-and-field-services economics. Cleanup revenue rests on backlog and contract type (time-and-materials, cost-plus, or fixed-price); recycling plants (materials recovery facilities, or MRFs) earn a stable per-ton fee plus a volatile commodity leg from selling baled paper, plastics, and metals; and field services (septic, sewer, tank cleaning) sell billable truck-days and live on route density. None of it uses regulated-utility rate base, real-estate funds-from-operations, or mining all-in-sustaining-cost language.[7]

The unifying levers across all three: whoever owns disposal captures both the hauling/service margin and the scarce tipping fee; whoever has route or asset density in a local market wins on cost; and recurring, mandated, escalating revenue is what makes the whole subsector a compounder rather than a cyclical. Integrated majors earn roughly 28–32% EBITDA margins (earnings before interest, taxes, depreciation, and amortization) with strong free cash flow; smaller field-service operators change hands at low-single-digit to high-single-digit cash-flow multiples at the deal level. Our federal file carries no margin or valuation series, so those are company/transaction benchmarks, not federal figures.[5][6][7]

6. Demand drivers

Three forces cut across the whole subsector, then each group has its own engine:

• Regulation and liability are the base demand everywhere. Waste must move through a documented, permitted chain; contamination must be cleaned up; storm drains must be maintained. Regulation is effectively this subsector's sales force, which is why demand is unusually non-cyclical.[1][3]
• Economic activity sets the baseline volume. Collection and disposal track population, households, business formation, construction, and industrial output — residential trash is defensive, while construction, industrial, and hazardous streams add cyclicality at the edges.[5][6]
• Government funding is a swing factor — federal appropriations (Superfund, Brownfields, DOE cleanup) and municipal budgets materially move demand, especially in remediation.[7][13]

Group by group: collection demand is led by price, not volume (tonnage is flat-to-low-single-digit most years); disposal is anchored by regulatory necessity plus reshoring/industrial policy that generates fresh hazardous streams; and remediation-and-other is pulled by cleanup mandates, an installed base of ~25 million U.S. septic systems, stormwater permits, and recycling policy. The shared wild card is PFAS — per- and polyfluoroalkyl substances, the "forever chemicals" — a demand tailwind for hazardous treatment and cleanup but a liability overhang for landfills and organics.[5][6][7][11]

7. Regulation

Regulation is simultaneously the demand engine and the barrier to entry — the defining feature of the whole subsector. The backbone is the Resource Conservation and Recovery Act (RCRA, 1976), which governs waste "cradle to grave": Subtitle D sets the floor for non-hazardous collection and landfills (with states and localities doing the primary permitting), while Subtitle C imposes federal control on hazardous waste (a binding manifest with every load, EPA transporter identification numbers, and permitted treatment/storage/disposal facilities). CERCLA — the Comprehensive Environmental Response, Compensation, and Liability Act, or "Superfund" (1980) — assigns strict, retroactive, joint-and-several cleanup liability and drives the remediation market. The Clean Air Act limits incinerator emissions and requires gas collection on large landfills, and state permitting plus "not-in-my-backyard" opposition is the main practical brake on new disposal capacity — a curse for entrants and a gift to whoever already owns permitted sites.[5][6][7][10]

The biggest live issue across all three groups is PFAS: the EPA's 2024 designation of two forever chemicals as CERCLA hazardous substances (retained in 2025), with further RCRA/Clean Water Act rulemaking projected around 2026, both expands the cleanup and hazardous-treatment market and creates new liability for landfills and organics — a genuinely two-sided regulatory force still working through litigation. A second, group-specific tailwind is Extended Producer Responsibility (EPR) for packaging — state laws (California's SB 54 designed to route ~$500 million a year from 2027) that convert commodity-exposed recycling plants toward contracted, utility-like revenue.[7][11]

8. Consolidation

The dominant strategic story across the subsector is consolidation — but the pattern differs by group. Collection has been rolled up for decades: the national HHI looks low (293.3), but the playbook is identical everywhere — buy a nearby operator, fold its stops into existing routes, internalize volume through owned disposal, and raise price as contracts renew. Disposal grows by buying capacity because you cannot easily permit new sites, so scarce permitted assets command premium prices. Remediation-and-other is the textbook fragmented roll-up: PE platforms cluster small local operators for density in cleanup, MRF, and field-service niches.[5][6][7]

Recent scale markers: the five listed majors spent roughly $11 billion on acquisitions in 2024; Republic Services bought US Ecology for $2.2 billion (2022); Clean Harbors acquired HEPACO (~$400 million, 2024); and Veolia completed its ~$3 billion Clean Earth deal (2026).[7][15][16] Two cautions travel across the whole level. First, the natural brakes are structural — state-by-state licensing, scarce disposal, and inherently local routes mean no one builds a national monopoly; the prize is dominant density in individual metros. Second, capital structure, not demand, is the binding constraint: United Site Services, the largest portable-sanitation platform, filed Chapter 11 in December 2025 and emerged in March 2026 after shedding ~$2.4 billion of debt — proof that steady demand does not protect an over-leveraged roll-up.[7]

9. Risks

The risks are largely shared across the subsector, with group-specific swing factors:

• Environmental liability is the defining long-tail risk — PFAS/CERCLA exposure, landfill leachate and methane, and Superfund-style cleanup obligations, heaviest where operators own disposal assets. PFAS designation remains in active litigation, making it a two-sided risk.[6][7][11]
• Permitting and closure costs are high — new capacity is hard to site, and closed landfills carry decades of post-closure monitoring.[6]
• Cost inflation and commodity swings — labor, fuel, insurance, and equipment inflation squeeze margins if pricing lags; recycled-material and commodity prices can swing an MRF from profit to loss.[5][7]
• Contract and government-funding risk — losing or rebidding a municipal contract dents a local franchise; remediation leans on federal appropriations and enforcement posture; municipal low-bid procurement caps pricing on "steady" work.[5][7]
• Roll-up leverage risk — proven, not hypothetical (the United Site Services bankruptcy): a debt-funded consolidator can fail even on non-cyclical demand.[7]
• Measurement / disclosure risk — no listed company maps to this NAICS level, employer-only data omit government and owner-operators, and private operators disclose little; reported "environmental services" revenue is not the same as 562 revenue, so the subsector is easy to mis-size and diligence carries more weight than headline numbers.[4][9]

10. How to invest, and the outlook

Public-market routes match the vehicle to the group. The integrated majors — Waste Management (WM), Republic Services (RSG), Waste Connections (WCN), plus GFL and Casella (CWST) — are the cleanest way to own the collection-plus-landfill core, prized as compounders: steady price-led growth, strong free cash flow, buybacks, and modest but reliably rising dividends rather than high-yield income. Clean Harbors (CLH) — and Veolia — is the most direct hazardous and cleanup read; Tetra Tech (TTEK) and the federal engineers (AECOM, Jacobs, Fluor, Amentum) reach the DOE cleanup end; RNG developers touch the disposal energy theme; and the VanEck EVX ETF bundles the solid-waste names. There is no direct listed access to municipal disposal, most incineration, or most recycling and field services.[5][6][7]

Private-market routes are where most of the subsector actually trades. With ~21,800 firms — the overwhelming majority private — the direct paths are: buying or building a local hauling company (5621); acquiring a disposal asset or backing a hazardous/organics platform, or lending via municipal bonds (a fixed-income way into government-owned disposal, 5622); and owning a field-service, remediation, or MRF operator or investing as a limited partner alongside a PE consolidator (5629). Underwrite the actual routes, contracts, fleet, disposal agreements, and environmental reserves — not a broad industry thesis — and respect the leverage risk the roll-up bankruptcies illustrate.[5][6][7]

Outlook (a judgment, not a reported fact). The subsector's core thesis looks durable: mandated, recession-resistant demand; pricing above inflation in collection; scarce, permit-protected disposal capacity; and a multi-year consolidation runway. The three groups head in different directions — steady price-led collection, a durable landfill cash core with hazardous growth and slow incineration decline, and a specialty-services group carrying a real high-growth option in PFAS cleanup and an EPR-driven upgrade of recycling. The main two-sided overhang is PFAS regulation. The central investing question is not "how much waste exists?" but "which owner controls the best route density and the scarcest permitted disposal, in the fastest-growing activities, at the lowest all-in environmental risk?" The federal data carry no growth forecast, so the thesis rests on route economics, disposal access, contract quality, and cash generation. For the full treatment of each group, read the three child primers — 5621 (collection), 5622 (treatment & disposal), and 5629 (remediation & other services).[5][6][7]

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Sources

This is a rollup page. The figures for the NAICS 562 level are our ingested ground-truth federal statistics; the cross-group detail is drawn from the three child primers and their underlying sources.

1. Histometrics ground-truth statistics file — NAICS 562 (Waste Management and Remediation Services): receipts $138.42B and firms 21,788, CR4 29.1% / CR8 34.8% / CR20 42.3% / CR50 49.6%, HHI 293.3 (Economic Census 2022); establishments 29,237, employment 493,864, annual payroll ~$35.60B, Q1 payroll ~$8.57B (County Business Patterns 2023).
2. U.S. Census Bureau, 2022 NAICS structure — subsector 562 and its three industry groups (5621, 5622, 5629). https://www.census.gov/naics/?input=562&year=2022
3. U.S. Census Bureau, 2022 Economic Census — Concentration of Largest Firms, NAICS 562 (receipts, firms, CR4/8/20/50, HHI). https://www.census.gov/programs-surveys/economic-census.html
4. U.S. Census Bureau, County Business Patterns: 2023, NAICS 562 (establishments, employment, annual and Q1 payroll); CBP methodology (employer-only coverage; excludes non-employers and most government). https://www.census.gov/programs-surveys/cbp.html
5. Histometrics child primer — NAICS 5621, Waste Collection (receipts ~$72.6B, employment 263,050, firms 8,976, CR4 42.2% / HHI 580.5; route-density economics, integrated majors, EVX ETF). Built on U.S. Census (Economic Census 2022, CBP 2023, NAICS definitions), EPA, SBA size standards, and company Form 10-K filings.
6. Histometrics child primer — NAICS 5622, Waste Treatment and Disposal (receipts ~$24.76B, employment 62,599, firms 1,630, CR4 38.5% / HHI 537; permitted-asset economics, landfill cash core, hazardous growth, municipal ownership). Built on U.S. Census (Economic Census 2022, CBP 2023, NAICS definitions), EPA RCRA/CERCLA/Clean Air Act/PFAS materials, and company 10-K filings.
7. Histometrics child primer — NAICS 5629, Remediation and Other Waste Management Services (receipts $41.07B, employment 168,215, firms 11,344, CR4 7.2% / HHI 27.1; remediation, MRFs, and field-service economics, PE roll-ups, PFAS/EPR drivers). Built on U.S. Census (Economic Census 2022, CBP 2023, NAICS definitions), EPA PFAS/septic/stormwater materials, DOE Environmental Management, state EPR statutes, and company disclosures.
8. U.S. Small Business Administration, Table of Small Business Size Standards, 2023 (waste and disposal industries: ~$47M average-receipts threshold — a federal-contracting classification, not a measure of average firm size). https://www.sba.gov/document/support-table-size-standards
9. U.S. Census Bureau, About County Business Patterns / Economic Census methodology (paid-employee establishments only; excludes non-employers and most government). https://www.census.gov/programs-surveys/cbp/about.html
10. U.S. Environmental Protection Agency, Resource Conservation and Recovery Act (RCRA) overview; Facts and Figures about Materials, Waste and Recycling. https://www.epa.gov/rcra
11. Holland & Knight, EPA's PFAS Rulemaking Trajectory: Key Updates Across CERCLA, TSCA, RCRA, SDWA and CWA, 2025; U.S. EPA, PFOA and PFOS designated CERCLA hazardous substances (2024, retained 2025); CalRecycle, SB 54 packaging EPR. https://www.epa.gov/superfund/pfas-superfund
12. U.S. Department of Justice and Federal Trade Commission, 2023 Merger Guidelines (HHI/CR concentration thresholds). https://www.justice.gov/atr/2023-merger-guidelines
13. U.S. Department of Energy, FY 2025 Budget in Brief — Environmental Management (~$8B/yr, "largest environmental cleanup program"). https://www.energy.gov/sites/default/files/2024-03/doe-fy-2025-budget-in-brief.pdf
14. Waste Dive / Waste Business Journal, Waste and recycling is now a $100B industry (~$104.6B, for scale context — a narrower "waste and recycling" definition than the full 562 subsector). https://www.wastedive.com/news/us-recycling-waste-market-100-billion-revenue-milestone-waste-business-journal/743163/
15. Waste Dive, Major public waste companies spent nearly $11B on M&A in 2024. https://www.wastedive.com/news/2024-q4-solid-waste-recycling-acquisition-spend-wm/741367/
16. Republic Services / Waste Dive (US Ecology, $2.2B, 2022); Clean Harbors (HEPACO, ~$400M, 2024); Veolia (Clean Earth, ~$3B, 2026). Company Form 10-K filings for Waste Management, Republic Services, Waste Connections, GFL, Casella, and Clean Harbors. https://www.veolia.com/en/our-media/press-releases/veolia-completes-clean-earth-deal-doubling-its-us-hazardous-waste-business