There are several choices other than the Eurotherm for specific requirements such as using germanium sensors.
The Neocera LTC-21 is a high performance temperature controller designed for use with most cryogenic temperature sensors. It is designed to accommodate the use of unusual sensors, such as germanium, with higher resolution at ultra-low temperatures.
The LTC-21 has two multi-purpose inputs and two heater outputs. It can be controlled remotely via RS232.
The Model 340 Lakeshore temperature controller provides high resolution, accuracy and stability for temperature measurements as low as 100mK. It can operate with a wide variety of sensors including germanium.
the model 340 can operate up to ten sensors and has two heater outputs. It can be controlled remotely via an RS232 link.