Overview
The Machinery Manufacturing industry (NAICS 333), essential to sectors such as agriculture, construction, energy, semiconductors, and industrial automation, involves producing highly specialized equipment that powers modern infrastructure and manufacturing. Growth in this industry is driven by trends in industrial automation, reshoring of production, infrastructure investment, and demand for energy-efficient and digitally integrated machinery.
For M&A professionals, consolidation within the industry presents opportunities to scale operations, modernize technology portfolios, and tap into high-growth verticals such as semiconductor fabrication, HVAC systems, and advanced material handling. Acquirers frequently pursue targets to gain proprietary technologies, expand service capabilities, or integrate upstream components and engineering functions. Vertical integration plays a key role, enabling firms to control critical parts of the value chain, reduce lead times, and enhance supply chain resilience.
Additionally, increasing pressure to decarbonize and digitize industrial operations is pushing machinery manufacturers to acquire capabilities that support smart systems, IoT-enabled equipment, and sustainability-aligned performance. The industry’s vital role across multiple end markets positions it as a rich landscape for strategic acquisitions, with deals often motivated by access to engineered products, market expansion, and technological differentiation.
Sub-Sectors
|
NAICS Code |
Industry Description |
|
333 |
Machinery Manufacturing |
|
3331 |
Agriculture, Construction, and Mining Machinery Manufacturing |
|
33311 |
Agricultural Implement Manufacturing |
|
333111 |
Farm Machinery and Equipment Manufacturing |
|
333112 |
Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing |
|
33312 |
Construction Machinery Manufacturing |
|
33313 |
Mining and Oil and Gas Field Machinery Manufacturing |
|
333131 |
Mining Machinery and Equipment Manufacturing |
|
333132 |
Oil and Gas Field Machinery and Equipment Manufacturing |
|
3332 |
Industrial Machinery Manufacturing |
|
333241 |
Food Product Machinery Manufacturing |
|
333242 |
Semiconductor Machinery Manufacturing |
|
333243 |
Sawmill, Woodworking, and Paper Machinery Manufacturing |
|
333244 |
Printing Machinery and Equipment Manufacturing |
|
333249 |
Other Industrial Machinery Manufacturing |
|
3333 |
Commercial and Service Industry Machinery Manufacturing |
|
333314 |
Optical Instrument and Lens Manufacturing |
|
333316 |
Photographic and Photocopying Equipment Manufacturing |
|
333318 |
Other Commercial and Service Industry Machinery Manufacturing |
|
3334 |
Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing |
|
333413 |
Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing |
|
333414 |
Heating Equipment (except Warm Air Furnaces) Manufacturing |
|
333415 |
Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing |
|
3335 |
Metalworking Machinery Manufacturing |
|
333511 |
Industrial Mold Manufacturing |
|
333514 |
Special Die and Tool, Die Set, Jig, and Fixture Manufacturing |
|
333515 |
Cutting Tool and Machine Tool Accessory Manufacturing |
|
333517 |
Machine Tool Manufacturing |
|
333519 |
Rolling Mill and Other Metalworking Machinery Manufacturing |
|
3336 |
Engine, Turbine, and Power Transmission Equipment Manufacturing |
|
333611 |
Turbine and Turbine Generator Set Units Manufacturing |
|
333612 |
Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing |
|
333613 |
Mechanical Power Transmission Equipment Manufacturing |
|
333618 |
Other Engine Equipment Manufacturing |
|
3339 |
Other General Purpose Machinery Manufacturing |
|
33391 |
Pump and Compressor Manufacturing |
|
333911 |
Pump and Pumping Equipment Manufacturing |
|
333912 |
Air and Gas Compressor Manufacturing |
|
333913 |
Measuring and Dispensing Pump Manufacturing |
|
33392 |
Material Handling Equipment Manufacturing |
|
333921 |
Elevator and Moving Stairway Manufacturing |
|
333922 |
Conveyor and Conveying Equipment Manufacturing |
|
333923 |
Overhead Traveling Crane, Hoist, and Monorail System Manufacturing |
|
333924 |
Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing |
|
33399 |
All Other General Purpose Machinery Manufacturing |
|
333991 |
Power-Driven Handtool Manufacturing |
|
333992 |
Welding and Soldering Equipment Manufacturing |
|
333993 |
Packaging Machinery Manufacturing |
|
333994 |
Industrial Process Furnace and Oven Manufacturing |
|
333995 |
Fluid Power Cylinder and Actuator Manufacturing |
|
333996 |
Fluid Power Pump and Motor Manufacturing |
|
333997 |
Scale and Balance Manufacturing |
|
333999 |
All Other Miscellaneous General Purpose Machinery Manufacturing |
Historical PE Investments in Machinery Manufacturing
Private equity firms have made a notable transition in this sector over the past two decades, shifting investment interests away from industrial manufacturing and metalworking to HVAC. Investments have been on the rise from 2017 onwards, largely fuelled by the extreme private equity demand for HVAC related companies.
Market Summary (2001 - 2025)
- 2,855 - Platform investments
- 1,965 - Add-on investments
- 1,310 - Total unique private equity firms invested
Top 5 Private Equity Firms Invested in Support Activities for Transportation
Measured by the number of deals in Support Activities for Transportation.
- Carlyle Group, The (Washington, DC)
- KKR & Co. (New York, NY)
- One Equity Partners (New York, NY)
- Riverside Company, The (New York, NY)
- Arcline Investment Management (San Francisco, CA)
Geographical Distribution
Sample Private Equity Investments in our Database
May 2025
Main Street Capital Corporation acquired Doral (Milwaukee, WI).
Doral delivers rigging, millwrighting, machinery moving, steel fabrication, and material handling installation services.
January 2025
Bluehenge Capital Partners made strategic investment in Arrowhead Winch (Broken Arrow, OK).
Arrowhead Winch (formerly PACCAR Winch) is a manufacturer of hydraulic winch, hoist and drive systems, and related parts and service for industrial applications.
December 2024
SIG Partners invested in Neville Built (Kingman, KS).
Neville Built Trailers is a manufacturer and fabricator of agricultural and industrial trailers.
April 2024
Gladstone Companies invested in Total Access Elevator (Santa Fe Springs, CA).
Total Access Elevator is a provider of commercial elevator modernization, maintenance, and repair services.
March 2024
L Catterton completed a significant investment in Storyteller Overland (Birmingham, AL).
Storyteller Overland is an adventure lifestyle brand and manufacturer of Class B RV Adventure Vans and off-grid expedition vehicles.
How Private Equity Info sources data
As a research database and information services company serving the middle market M&A community for 20 years, Private Equity Info ingests enormous amounts of data surrounding transactions, firms, and executives. In addition, our team engages in many conversations daily across the spectrum of investors, investment bankers, and service providers to the M&A community.
This summary report was put together by analyzing the private equity investments collected by our dedicated research team which follows 127,000 key executives, 16,000 firms and 33,000 funds in the M&A industry, or 34 million total data points. Private equity investors, investment bankers and service providers in the M&A space use Private Equity Info to search, identify and download targeted lists of M&A professionals in order to connect with key executives across thousands of companies, firms and funds.
