Automation Technology still specialise in advanced miniature pneumatic, particularly where integration with electronics is involved. Typically these include Airbox, integrated valve and cylinder devices such as the Automation Technology Smart cylinder, and valve islands.
You can find valves up to 1/2″, both NPT and BSPT, cylinders up to 125mm (5″) bore and a wide range of system logic devices including pneumatic timers, counters, precision regulators and fittings.