Even a senior can be flexible. Senior plc's Flexonics division makes flexible components for vehicle exhaust and emissions control systems. The unit's sectors include Land Vehicle Emission Control (for passenger and heavy-duty diesel engines) and Industrial Process Control (for temperature/pressure). The company's larger division -- Aerospace (65% of sales) -- comprises Structures, Fluid Conveyance Systems, and Gas Turbine Engines; it manufactures non-metallic air and hydraulic systems, aero-engines, and aerostructures for military, commercial, regional, and business jet aircraft. Major OEM customers include Boeing, Cummins, Ford, and GM. Senior has 25 operations in about a dozen countries.