Does anyone still make an open source, configurable bioreactor control system? I want to specify the equipment being used and need to be able to write my own code for the controller.

To be honest, it sounds like your best bet would be to go to a system integrator with a proven track record of delivering such systems. They are more likely to be able to incorporate the specific supplier’s equipment you require and give you a control platform that is “open source”. However, open source can come in many flavors of controller, everything from DCS’s to PLC’s so it is best to go to a shop that can offer both and determine which platform best meets your needs. That being said, I would take a look at Panacea Technologies, I have provided a link below for your reference.

Panacea Technologies