​Castle Environmental is a UK-based company specializing in the treatment, disposal, and recycling of hazardous and liquid waste. With over 40 years of experience, the company operates three facilities located in Ilkeston (East Midlands), Stoke-on-Trent (West Midlands), and Cardiff (South Wales). Collectively, these sites process over 200,000 tonnes of waste annually, recycling approximately 65% of the materials received.