Industrials is one of the broadest sectors in the equity market — encompassing companies that build, power, and maintain the physical world. From the tractors that harvest crops to the engines in commercial aircraft, from the HVAC systems in skyscrapers to the industrial robots on factory floors, industrials companies provide the capital equipment and services that underpin every other sector of the economy.
The global industrials sector generates over $5 trillion in annual revenue, spanning aerospace components, electrical equipment, construction machinery, staffing services, waste management, and transportation infrastructure. What these disparate businesses share is economic sensitivity: industrials is a cyclical sector, closely tied to GDP growth, business investment, and construction activity.
Industrial Business Models
Original Equipment Manufacturing (OEM)
Industrial OEMs design and build capital equipment — tractors (Deere), aircraft engines (GE Aerospace), industrial automation (Honeywell, Emerson), HVAC systems (Trane Technologies). Revenue is recognised on equipment shipment; margins depend on pricing power, supply chain efficiency, and mix of new vs replacement demand.
OEM businesses have a natural aftermarket component: equipment sold today generates spare parts and service revenue for 10–30 years. This installed base is one of the most durable competitive advantages in industrials — Deere’s service dealer network and parts availability is a major switching cost for farmers.
Aftermarket Parts and Services
The highest-margin revenue stream for most industrial companies. Aftermarket gross margins (40–60%) significantly exceed OEM equipment margins (15–30%). Companies with large installed bases — Honeywell process controls, Parker Hannifin fluid power systems, Eaton electrical components — generate substantial recurring aftermarket revenue that smooths cyclical volatility.
Engineered-to-Order (ETO) Projects
Complex industrial projects (power plants, refineries, semiconductor fabs) require bespoke engineering. ETO contracts are large, lumpy, and require sophisticated project management. Revenue is recognised on percentage-of-completion; cost overruns and schedule slippage are the primary risk.
Staffing, Outsourcing, and Services
Cintas provides uniforms, safety supplies, and first aid services to 1 million+ businesses. Waste management (Waste Connections, Republic Services, Waste Management) provides essential infrastructure with recession-resistant demand. These service businesses have more predictable revenues than capital equipment manufacturers.
Revenue Models Compared
| Model | Revenue Basis | Operating Margin |
|---|---|---|
| Industrial equipment (OEM) | Unit price × shipment volume | 12–20% |
| Aftermarket parts and service | Installed base × attach rate | 20–35% |
| ETO / engineered projects | Milestone completion | 8–15% |
| Industrial services (Cintas) | Contract value × routes | 15–22% |
| Waste services | Volume × price per ton | 18–25% |
Key Companies in Industrials
Diversified Industrials:
- Honeywell — aerospace components, building technologies, performance materials, safety; $37B+ revenue
- 3M — diversified materials, industrial adhesives, personal safety; undergoing healthcare spinoff
- Eaton — electrical power management; data centre power; industrial automation
Construction and Agriculture Equipment:
- Deere & Company — John Deere; largest global farm equipment manufacturer; precision agriculture software
- Parker Hannifin — motion and control technology; hydraulics, pneumatics, filtration
Climate and Energy:
- Trane Technologies — HVAC systems; Trane and Thermo King brands; building energy efficiency
Services and Outsourcing:
- Cintas — uniform rental and services; 1M+ business customers; recurring B2B model
- Waste Connections — solid waste collection, transfer, and disposal; defensive recurring revenue
Fasteners and Components:
- Amphenol — interconnect products; connectors for defence, automotive, and data centre
- Chubb — insurance (largest commercial lines insurer globally); property & casualty
Key Metrics for Industrial Companies
Organic Revenue Growth
Revenue growth excluding acquisitions and currency effects. Organic growth separates underlying demand from M&A. Industrial companies report segment organic growth; watch for pricing vs volume decomposition — pricing-led growth is more sustainable than volume.
Orders and Backlog
New orders in the period signal future revenue. Backlog (unexecuted orders) provides forward visibility. A growing book-to-bill ratio (orders ÷ revenue) signals upcoming acceleration; declining ratio signals softening demand before it hits revenue.
Operating Margin and Margin Expansion
Industrials are judged on their ability to expand operating margins over time through pricing, productivity, and portfolio mix. Honeywell and Cintas have been exceptional at this over the past decade. Margin contraction in a growth year signals cost problems or pricing pressure.
Free Cash Flow Conversion
Industrial companies with strong working capital management convert a high percentage of earnings to free cash flow. Cintas consistently converts 90%+ of net income to FCF. Working capital discipline — especially inventory management — is the primary driver of FCF conversion.
Return on Invested Capital (ROIC)
The primary long-term value driver for capital-intensive industrials. Companies that earn ROIC well above their cost of capital (Cintas: 25%+, Deere: 20%+) create substantial value; companies that earn below their cost of capital destroy it through acquisitions.
The Electrification and Energy Transition Tailwind
The shift from fossil fuel to electric power across transportation, buildings, and industry is a multi-decade investment cycle creating significant demand for industrial companies:
- Electrical equipment: Eaton, Hubbell, and ABB benefit from data centre power buildout, grid modernisation, and EV charging infrastructure
- HVAC efficiency: Trane Technologies benefits as buildings upgrade to more efficient heat pump systems
- Precision agriculture: Deere’s GPS-guided, software-enabled equipment reduces input costs and is nearly impossible for competitors to replicate
Key Comparisons
Related Glossary Terms
- EBITDA — operating earnings before depreciation; used to compare industrial capital intensity
- Free Cash Flow — the ultimate measure of industrial company quality
- Capital Expenditure — factory, tooling, and R&D investment for industrial OEMs
- Return on Invested Capital — the long-run scorecard for industrial value creation