Trane Technologies makes money by selling heating, cooling, and refrigeration systems, then continuing to earn from those same customers through repairs, maintenance contracts, parts, and rental options. The two main brands are Trane, which handles heating and air conditioning for homes and commercial buildings, and Thermo King, which keeps food and medicine cold while it travels in trucks, trailers, and containers. Every time a building owner needs a new chiller, a grocery chain needs a refrigerated trailer, or a hospital needs its climate system serviced, Trane Technologies is positioned to capture that spending. The diagram below traces where the money goes.
How Trane Technologies Makes Money
flowchart TD
A["Product Sales
14.0B dollars"] --> B["Manufacturing &
Component Sourcing"]
B --> C["HVAC, Transport
Refrigeration Systems"]
C --> D["Three Geographic
Segments
21.3B dollars revenue"]
D --> E["Service & Rental
Revenue
7.3B dollars"]
E --> F["Recurring Revenue
Growth Strategy"]
F --> A
D --> G["Operating Profit
18.6% margin"]
G --> H["R&D Investment
347.6M dollars"]
H --> C
G --> I["Cash Flow
3.2B dollars"]
I --> H
Five years of financial data tell a consistent story. Revenue has grown every single year, from $14.1 billion in 2021 to $21.3 billion in 2025. That is not a lucky streak in one hot market. It reflects steady price increases, higher volumes, and a stream of bolt-on acquisitions that added new customers and geographies. The Americas segment alone generated $17.2 billion of the $21.3 billion in 2025 revenue, confirming that North and Latin America remain the engine of the whole operation.
Annual Revenue 2021 to 2025 ($ Billions)
Revenue has risen in a straight line for five consecutive years, driven by price increases, volume growth, and acquisitions.
The quality of those revenues has also improved. Gross margin, which is the share of each dollar of revenue left after the cost of making the product, climbed from 31.6% in 2021 to 36.2% in 2025. That means the company kept a larger slice of every dollar it brought in. Free cash flow followed the same upward path, rising from $1.6 billion in 2021 to $3.2 billion in 2025. The company used much of that cash to repurchase shares and raise its dividend, which has increased 77% since 2020.
$3.2B
Free cash flow in 2025, up from $1.6B in 2021
Net debt, which is total borrowings minus cash on hand, has also moved in the right direction. It peaked at $3.7 billion in 2023 and fell to $2.9 billion by 2025, even as the company kept spending on acquisitions and share buybacks. The balance sheet is not debt-free, but the trend is improving.
What Is a Firm Order Backlog?
A backlog is the total value of orders customers have already placed but that the company has not yet delivered. It is a forward-looking indicator of future revenue. A growing backlog generally means demand is outpacing delivery capacity. Trane Technologies only counts equipment and installation orders in its backlog, not ongoing service contracts.
Looking forward, the order backlog gives a concrete signal of near-term demand. At the end of 2025, the total firm backlog stood at $7.8 billion, up from $6.7 billion at the end of 2024. The company expects to ship most of that backlog during 2026. Commercial heating and cooling in the Americas and EMEA regions drove the increase. Transport refrigeration and residential HVAC were softer, with the residential business hit by a regulatory refrigerant transition and weaker consumer demand.
$7.8B
Firm order backlog at end of 2025, up from $6.7B a year earlier
2020
milestone
Separation Into a Pure-Play Climate Company
In 2020, the old Ingersoll Rand split into two separate companies. The part that became Trane Technologies kept only three businesses: commercial HVAC under the Trane brand, residential HVAC also under Trane, and transport refrigeration under Thermo King. Stripping away everything else allowed the company to direct all capital and management attention toward climate systems, which is the focus behind the revenue and margin expansion seen in the years that followed.
The risks are real and specific. Two subsidiaries named Aldrich and Murray filed for bankruptcy protection in 2020 to deal with asbestos injury claims from products made decades ago. Those legal proceedings are still unresolved. An estimation hearing for the asbestos liabilities is scheduled to begin in August 2026. The total amount Trane Technologies may ultimately need to fund a settlement trust is unknown, and courts are still debating whether the parent company itself could be held responsible beyond what Aldrich and Murray alone can cover.
What Is a Section 524(g) Trust?
When a company has massive injury claims it cannot fully predict, bankruptcy law allows it to create a special trust that pays all current and future claimants. The company funds the trust upfront or over time, and the trust handles all claims permanently. This is meant to give both the company and claimants certainty, but courts must approve the plan, and the funding amount is set through legal proceedings that can take years.
Beyond the asbestos proceedings, the company faces supply chain exposure in steel, copper, aluminum, and electronic components. Shortages or price spikes in any of those materials can squeeze margins that took years to build. U.S. tariffs and retaliatory tariffs from other countries add another layer of cost uncertainty that management itself says it cannot fully predict. Refrigerant regulations are also forcing costly product redesigns across the entire HVAC industry, and the pace of government rule changes could outrun the company's ability to retool its product line. Finally, the company's connected building systems and AI-enabled controls create cybersecurity exposure. Its own filings acknowledge that systems have already been targeted by attackers.
$347.6M
Spent on research and development in 2025, focused on energy efficiency and lower-impact refrigerants
Roughly 25% of 2025 revenues came from outside the United States, across approximately 100 countries. That global spread means currency swings, local regulations, and geopolitical tensions in any region can affect results in ways the company cannot fully control.
The Bet
Trane Technologies is priced on the assumption that demand for energy-efficient climate systems will keep growing fast enough, for long enough, to sustain both the revenue trajectory and the margin expansion the last five years have delivered. The core premise is that building owners, data center operators, and governments will continue prioritizing the replacement of old, inefficient HVAC equipment with newer, connected systems, even when interest rates are high, construction activity slows, or economic uncertainty rises. If that replacement cycle stalls, or if the residential and transport refrigeration markets stay weak while commercial HVAC softens too, the growth story loses its foundation before the asbestos liability is fully resolved and before newer bets like AI-enabled building controls and data center cooling have proven their scale.
Open question
The commercial HVAC business is strong and the backlog is growing. But the asbestos liability is unresolved, the residential business is under pressure, transport refrigeration demand is weak, and tariff costs are rising in ways management cannot fully forecast. Can the commercial HVAC momentum hold long enough to carry the whole company through the asbestos settlement, the refrigerant transition, and the softness in its other two major revenue streams, all at the same time?
Compiled · 10-K · FY2025
