Construction Machinery Manufacturing (U.S.) — Industry Rollup Primer

NAICS 2022 code 33312. NAICS is the North American Industry Classification System, the standard the U.S. government uses to group businesses. This is a five-digit NAICS industry — a rollup one level above the six-digit detail industries beneath it.

1. Overview

This level is the industry that builds the yellow iron: bulldozers, excavators, wheel loaders, backhoes, graders, pavers, and construction cranes, plus surface (open-pit) mining machinery and logging equipment [1]. It is a large, globally competitive, and deeply cyclical manufacturing business — sales swing hard with construction activity, commodity prices, and interest rates, then rebound. For investors it is a direct way to bet on U.S. infrastructure spending, housing, and mining.

2. What's inside — and why this level equals its one child

NAICS is a nested system: each five-digit industry normally splits into two or more six-digit detail industries. Construction Machinery Manufacturing is an exception. It contains exactly one child — 333120 Construction Machinery Manufacturing — which carries the identical name and definition [1]. There is nothing in 33312 that is not also in 333120, so the two are effectively the same thing at different zoom levels.

Because of that, this page is deliberately short. For the full treatment — the scope-and-exclusions detail (aerial lifts and truck-type cranes, underground mining and drilling machinery, farm equipment, railroad track-laying equipment, and forklifts all sit in other NAICS codes), the company-by-company investable universe, the economics of the aftermarket "razor-and-blades" model, the secular shift to connected and electrified machines, and the near-term cycle outlook — read the child primer for 333120. Everything below is a compact summary of that page, anchored to this level's own federal figures.

3. How big it is (this level's rollup figures)

Because 33312 has a single child, its statistics are identical to 333120's. Federal figures for U.S. establishments classified here:

How to read these numbers. The $41.2 billion Economic Census figure is the value of machinery shipped from U.S. plants in 2022, foreign-owned ones included. The monthly M3 shipments series is the more current gauge — summing its seasonally adjusted monthly observations gives $49.2 billion for 2025 against $35.4 billion in 2021, though those are derived annual sums rather than an Economic Census total [3]. Neither figure is the size of the U.S. market, and neither is the global revenue of the big brands: Caterpillar's Construction Industries segment alone was $25.1 billion of roughly $65 billion of company-wide 2025 revenue, worldwide and spanning far more than this code [5]. Production is global, a large share of what Americans buy is imported, and a large share of what U.S. plants build is exported. Read the U.S. shipments figure alongside company-level global revenues, not instead of them.

Where the measures disagree. Employment depends on which federal program you use. County Business Patterns puts 2023 employment at 64,700 [4]; a separate Bureau of Labor Statistics benchmark series reported 73,100 construction-machinery-manufacturing jobs in March 2025 [6]. The gap is a difference of period and statistical program, not a contradiction — but it is a reminder not to treat any single count as definitive.

Undercount caveat. This is a well-measured, corporate-scale manufacturing industry — the federal figures are reasonably complete, with little of the individual- or informal-ownership undercount that affects other sectors. The caveat here is the opposite: no single national statistic captures a globally organized industry.

Concentration. This is a concentrated industry at both the firm and the factory level. The four largest firms account for 54.5% of receipts, the top eight for 66%, the top 20 for 77.8%, and the top 50 for 88.1% [2]. The Herfindahl-Hirschman Index (HHI, a 0–10,000 concentration gauge where higher means more concentrated) is 857.9 [2] — below the 1,500 line U.S. antitrust agencies treat as "moderately concentrated," reflecting many strong foreign competitors. Scale shows up in the plants too: the 29 establishments with 500 or more employees hold 32,238 workers, or 49.8% of industry employment [4]. The U.S. Small Business Administration's size standard here is 1,250 employees [7] — a high bar that signals how capital- and labor-heavy the work is.

4. The investable universe (where value concentrates)

With only one child, this level's investable map is that child's map. There is no clean listed "construction machinery" pure-play of size — the biggest names are diversified, and several leaders are foreign or privately held. The most direct U.S.-listed exposure runs through Caterpillar (Construction Industries $25.1 billion in 2025, the global #1) [5], Deere (Construction & Forestry roughly $11.4 billion in fiscal 2025, with the rest of the company in farm equipment) [8], and CNH Industrial (about $3.0 billion of construction revenue in 2025) [9]; Oshkosh, Terex, Manitowoc, and Astec add smaller or less directly exposed positions, with per-company sizes in the 333120 table. Major non-U.S. and private owners include Komatsu (about $26.6 billion group revenue, the world's #2), China's XCMG (~$12.8 billion) and SANY (~$10.8 billion) [10], plus Hitachi, Volvo Construction Equipment, Kubota, and privately held Liebherr, JCB, and Vermeer. The equipment-rental "sideways" plays matter as much as the makers: the American Rental Association estimates rental companies own about 60% of U.S. construction equipment in place and invested $21.0 billion in new equipment in 2024 [11]. Tickers and revenue splits are laid out in the 333120 primer, §4.

5. How the money works

The economics are those of a cyclical, operating-leverage, aftermarket-annuity business: new-machine sales amplified by heavy factory fixed costs; a high-margin stream of spare parts and service on the installed base that recurs for a machine's 10–20-year life; steel as the dominant input cost; and captive in-house finance arms that grease sales. How far margins swing is visible in the 2025 results — Caterpillar's Construction Industries segment margin fell to 18.7% from 24.2%, on unfavorable price realization and tariff-driven manufacturing costs [5]; Deere's Construction & Forestry operating margin fell to 9.0% from 15.5% [8]; CNH's construction adjusted EBIT margin was 2.3% [9]. Makers sell mostly through independent dealers — Deere alone reported roughly 450 North American locations selling construction, earthmoving, roadbuilding, compact, or forestry equipment [8] — and increasingly the first buyer is a rental company [11]. Telematics, remote diagnostics, and predictive maintenance are extending the aftermarket annuity as machines become connected jobsite systems rather than stand-alone iron [12]. See 333120, §5 and §7 for the full mechanics.

6. What drives demand

Demand is derived — it follows how much construction, mining, and land-clearing is happening. The biggest current U.S. tailwind is the $1.2 trillion Infrastructure Investment and Jobs Act (IIJA) of 2021 in its peak build-out phase [13], within which the Federal Highway Administration identified $350.8 billion for highway programs through fiscal 2026 [14]. Other drivers are nonresidential and residential construction (rate-sensitive), surface-mining and commodity cycles, replacement demand as fleets age, rental-fleet renewal, and reshoring megaprojects (data centers, chip fabs, LNG). Labor scarcity now cuts both ways: in a 2025 contractor survey, 92% reported difficulty filling positions and 45% reported project delays from worker shortages [15] — supporting demand for automation and easier-to-operate machines while also delaying the projects those machines would work on. Detail in 333120, §6.

7. Regulation

The industry is shaped less by price/entry regulation than by emissions rules, trade policy, and safety standards: the U.S. Environmental Protection Agency's (EPA) nonroad diesel standards through Tier 4 Final (from 2015), which cut soot and nitrogen oxides ~90%+ and raised machine cost by requiring aftertreatment hardware [16]; Section 232 steel and aluminum tariffs, raised to 50% in 2025 and extended to hundreds of derivative products before targeted relief for construction and agriculture equipment arrived in mid-2026 [17]; and Occupational Safety and Health Administration (OSHA) worksite rules, including respirable-silica limits that shape dust suppression and operating instructions for crushing, milling, drilling, and grading machines [18]. Emissions pressure is also pushing electrification into compact machines, where duty cycles and charging are manageable; EPA has supported demonstrations of electric excavators and wheel loaders, while high-energy continuous-duty machines remain hard to electrify [19]. Full discussion in 333120, §8.

8. Consolidation

Consolidation has come by acquisition of adjacencies rather than mergers of the giants — Deere's ~$5.2 billion purchase of Germany's Wirtgen in 2017 to lead road-construction machinery [20], and earlier Caterpillar's 2011 purchase of Bucyrus in mining equipment [21]. The barriers to entry are scale, a dense dealer/service network, and a large installed base; a long tail of specialists in cranes, paving, compaction, and attachments keeps the industry from being a pure oligopoly. The sharpest recent competitive challenge is Chinese OEMs (original equipment manufacturers, i.e. the machine builders) climbing the global rankings [10]. See 333120, §9.

9. Risks

Cyclicality is the defining risk — a good company can still see revenue drop 10%+ in a bad year, and global construction-equipment sales were expected to bottom around 2025 before recovering [22][23]. Other exposures: high interest rates suppressing construction; steel/aluminum cost and tariff swings that price increases may not fully offset, as Caterpillar's 2025 margin decline showed [5][17]; low-cost foreign competition [10]; dealer and rental destocking that cuts factory orders ahead of end-demand [9]; skilled-labor shortages constraining both production and end-market utilization [15]; and the R&D cost of the emissions/electrification transition. Full list in 333120, §10.

10. How to invest, and the outlook

Because 33312 is identical to 333120, the how-to-invest playbook is the same. Public-market routes center on Caterpillar (CAT) as the cleanest single proxy and an S&P 500 Dividend Aristocrat [21], with Deere (DE), Terex (TEX), Manitowoc (MTW), Astec (ASTE), Oshkosh (OSK), and CNH for more targeted exposure, and the equipment-rental names (United Rentals URI, Herc HRI, London-listed Ashtead) to bet on equipment usage rather than manufacture. There is no widely held pure-play construction-machinery exchange-traded fund; exposure usually arrives through broad industrial-sector funds. Value the sector on a through-the-cycle price-to-earnings multiple (a low multiple at a peak is a trap), free-cash-flow yield, and the dividend record, watching backlog and dealer inventories as leading signals. Private-market value sits mostly in dealerships, independent rental operators, component and hydraulics suppliers, and aftermarket-parts and remanufacturing businesses. The most common analytical error at this level is treating a global OEM segment's revenue as the U.S. NAICS market — NAICS counts domestic establishments, company segments are worldwide and include parts, finance, and products outside this code. Outlook: a trough-to-recovery story, with 2025 read as the low point and a rebound expected from 2026 on IIJA build-out, replacement demand, and eventual rate relief [22][23]. For the complete investment discussion, see the 333120 primer, §11.

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This is a rollup summary. For full detail, sourcing, and the complete company tables, see the child primer: NAICS 333120 — Construction Machinery Manufacturing.

Sources

1. U.S. Census Bureau. 2022 NAICS Definition — 333120 Construction Machinery Manufacturing (scope, exclusions, single-child structure of 33312). 2022. https://www.census.gov/naics/?input=333120&year=2022
2. U.S. Census Bureau. 2022 Economic Census — Concentration by Largest Firms, NAICS 333120 (receipts $41.2B; firms 561; CR4 54.5%, CR8 66%, CR20 77.8%, CR50 88.1%; HHI 857.9). 2022. https://www.census.gov/programs-surveys/economic-census.html
3. Federal Reserve Bank of St. Louis (FRED). Manufacturers' Shipments: Construction Machinery (A33CVS) (2025 $49.2B, 2024 $46.9B, 2021 $35.4B — summed monthly seasonally adjusted). 2026. https://fred.stlouisfed.org/data/A33CVS
4. U.S. Census Bureau. 2023 County Business Patterns, NAICS 333120 (employment 64,700; establishments 651; annual payroll $4.88B; 29 establishments with 500+ employees, 32,238 employees, 49.8% of employment). 2023. https://data.census.gov/table/CBP2023.CB2300CBP?q=333120
5. Caterpillar Inc. 2025 Annual Report (Form 10-K) (total revenue ~$65B, Construction Industries $25.1B, segment margin 18.7% vs 24.2%, tariff and price impacts). SEC, 2026. https://www.sec.gov/Archives/edgar/data/18230/000001823026000008/cat-20251231.htm
6. U.S. Bureau of Labor Statistics. 2025 CES Benchmark Tables (March 2025 construction-machinery employment 73,100). 2025. https://www.bls.gov/ces/publications/benchmark/cesbmart25-tables.htm
7. U.S. Small Business Administration. Table of Size Standards — NAICS 333120 (1,250 employees). 2023. https://www.sba.gov/document/support-table-size-standards
8. Deere & Company. 2025 Annual Report (Form 10-K) (Construction & Forestry net sales ~$11.4B, operating margin 9.0% vs 15.5%, dealer network ~450 locations). SEC, 2025. https://www.sec.gov/Archives/edgar/data/315189/000110465925122321/de-20251102x10k.htm
9. CNH Industrial. 2025 Annual Report (Form 10-K) (construction revenue ~$3.0B, 2.3% adjusted EBIT margin, dealer destocking, tariff impacts). SEC, 2026. https://www.sec.gov/Archives/edgar/data/1567094/000156709426000006/cnhi-20251231.htm
10. YNS Corp / Spherical Insights. 2025 Global Construction & Mining Equipment Rankings (Komatsu ~$26.6B; XCMG ~$12.8B; SANY ~$10.8B; Caterpillar global #1). 2026. https://www.yns-corp.com/2026/01/08/2025-global-construction-mining-equipment-rankings-caterpillar-leads-chinese-oems-rising/
11. American Rental Association. ARA Position Paper: Depreciation and Expensing (rental companies own ~60% of U.S. construction equipment; $21.0B new equipment investment 2024). 2025. https://ararental.org/Portals/0/Images/2025/ARA%20Position%20Paper%20Depreciation%20and%20Expensing_Final.pdf
12. Association of Equipment Manufacturers. New AEM Guidance Documents Set the Tone for Talking about Data, Cybersecurity and Autonomy. 2025. https://www.aem.org/news/new-aem-guidance-documents-set-the-tone-for-talking-about-data-cybersecurity-and-autonomy
13. The Bond Buyer. Transportation infrastructure rides into final year of IIJA with record spending ($1.2T IIJA, peak execution). 2025. https://www.bondbuyer.com/news/transportation-infrastructure-rides-into-final-year-of-iija-with-record-spending-expected
14. Federal Highway Administration. FHWA Strategic Plan ($350.8B for highway programs through FY 2026). 2023. https://highways.dot.gov/sites/fhwa.dot.gov/files/2023-05/FHWA_Strategic_Plan_05.25.23.pdf
15. Associated General Contractors of America. Workforce Shortages Delay Projects (92% difficulty filling positions, 45% project delays). 2025. https://news.agc.org/workforce-development/workforce-shortages-delay-projects/
16. DieselNet / U.S. EPA. USA: Nonroad Diesel Engines — Emission Standards (Tier 4) (PM/NOx cut ~90%+; SCR/DEF/DPF; Tier 4 Final from 2015). 2024. https://dieselnet.com/standards/us/nonroad.php
17. Equipment World / AEM. Steep Section 232 Tariffs Hit Construction Equipment; targeted relief 2026 (50% steel/aluminum tariffs, derivative products). 2025–2026. https://www.equipmentworld.com/regulations/article/15753669/new-50-tariffs-hit-construction-equipment-parts
18. Occupational Safety and Health Administration. Respirable Crystalline Silica — Construction (silica exposure limits for crushing, milling, drilling, grading). 2025. https://www.osha.gov/silica-crystalline/construction
19. U.S. Environmental Protection Agency. Construction and Non-Road Workgroup (electrification demonstrations). 2025. https://www.epa.gov/wcc/construction
20. Deere & Company. Deere Completes Acquisition of Wirtgen Group ($5.2B, road-construction machinery). PR Newswire, 2017. https://www.prnewswire.com/news-releases/deere--company-completes-acquisition-of-the-wirtgen-group-300565244.html
21. Sure Dividend. Dividend Aristocrats in Focus: Caterpillar Inc. (Dividend Aristocrat; Bucyrus acquisition history). 2025. https://www.suredividend.com/dividend-aristocrats-cat/
22. Construction Briefing / Off-Highway Research. Global construction equipment sales to hit low in 2025, recover from 2026. 2025. https://www.constructionbriefing.com/news/global-construction-equipment-sales-to-hit-low-in-2025-recover-from-2026/8054705.article
23. Association of Equipment Manufacturers (AEM). As Non-Road Equipment Manufacturers Face Challenges, Hope Builds for 2026 Recovery. 2025. https://www.aem.org/news/as-offhighway-equipment-manufacturers-face-challenges-hope-builds-for-2026-recovery