Isomerization Units: Market Size & Forecast 2026

The global isomerization units market reached approximately USD 1.6 billion in 2025, measured as refinery-level capex for process-unit installation, engineering, and catalyst charging. The market sits in a structurally mature phase: global light-naphtha volumes are broadly stable, octane specification tightening in emerging-market gasoline pools provides the primary growth catalyst, and technology differentiation between UOP Penex and competing Axens/Topsoe licensed configurations defines the competitive axis. We project a 3.8% CAGR through 2032, reaching approximately USD 2.1 billion at the forecast terminus, driven by Asia-Pacific capacity additions and catalyst replacement cycles in established North American and European refineries. The market is supplier-favoring on our Buyer Power Score of -2.0: technology licensors command proprietary process guarantees, EPC execution is concentra

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