The Synthetic Membranes market is principally divided by application, a taxonomy that drives revenue allocation across end‑use sectors. Water & Wastewater Treatment remains the dominant segment, accounting for roughly 45 % of total sales; its share is anchored in municipal and industrial desalination, effluent polishing, and stringent regulatory mandates that prioritize membrane‑based separations. Food & Beverage follows with an estimated 20 % contribution, where membranes enable clarification, concentration, and aseptic processing of liquids such as dairy, juices, and alcoholic beverages. Pharmaceuticals represent about 15 % of the market, supporting sterile filtration, viral removal, and active‑ingredient purification under GMP requirements. Biotechnology contributes near 10 % of revenue, primarily through cell‑culture harvesting and protein purification in bioprocessing facilities. Chemical Processing and Energy each capture roughly 5 % of revenue, the former supplying solvent recovery and catalyst separation, the latter providing proton‑exchange membranes for fuel‑cell systems. This application‑centric Synthetic Membranes segmentation clarifies where growth potential and capital investment are concentrated. Analysts therefore monitor regulatory trends and capacity expansions in the water segment as primary indicators of market trajectory.