TacticScaleWhat TransDigm Does & How It Makes Money (TDG)
Updated October 2026 · reflects TransDigm's latest reported financials
Maker of specialized, proprietary aircraft components and systems. It earns revenue by selling engineered components to manufacturers for new aircraft and to airlines, maintenance providers and military agencies for replacement parts and repairs over the life of the fleet, plus testing services and equipment.
How TransDigm makes money
It earns revenue by selling engineered components to manufacturers for new aircraft and to airlines, maintenance providers and military agencies for replacement parts and repairs over the life of the fleet, plus testing services and equipment.
What TransDigm does
TransDigm Group, founded in 1993 and headquartered in Cleveland, Ohio, supplies a broad range of engineered aircraft components. Its Power & Control segment covers actuators, ignition systems, pumps, valves, motors, generators, batteries, sensors, hoists and cargo handling systems. Its Airframe segment makes latches, connectors, seals, cockpit displays and security systems, lavatory parts, seat belts, interior surfaces, insulation, lighting, parachutes, and audio, radio and antenna systems. It also provides flight, wind tunnel and jet engine testing services. Customers include airframe and engine makers, cabin system suppliers, airlines, third-party maintenance providers, military buying agencies and repair depots. A smaller Non-Aviation segment sells restraints, actuators, fuel valves, refueling systems and turbine controls to off-road vehicle, heavy equipment, child restraint and satellite/space system suppliers.
Products & services
- Actuators and controls
- Ignition systems and engine technology
- Specialized pumps and valves
- Seat belts and safety restraints
- Cockpit displays and security systems
- Cargo loading and handling systems
What is TransDigm worth?
On an owner-earnings DCF, TransDigm's most-likely value is about $673 versus a recent price near $1,108 (39% above fair value). But TacticScale only calls a stock undervalued when the price sits below its conservative no-growth floor (~$259) with a margin of safety — so the honest verdict here is “Fairly priced — no edge.” Fair value earns its keep only at the extremes, not in the wide middle.
Price sits in the normal range — fair value isn't actionable here; it earns its keep only when price drops below the no-growth floor, or runs to roughly double the optimistic case.
⚠ High leverage — net debt is 15.9× annual cash flow. Net debt is subtracted from this fair value, but refinancing at higher rates, principal timing, and share dilution aren’t modeled — the equity can be worth far less if cash flow weakens.
Analysis, not advice. Fair value is a margin-of-safety estimate from a deterministic owner-earnings DCF, not a price target or recommendation. See the full breakdown →
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