PTD Cleantech Solutions (PTD-CS) is an international design and engineering company specializing in controlled environments for high-tech and life science industries. As a fully owned subsidiary of CRC Engineering, Belgium, PTD-CS offers expertise in cleanroom technology, controlled environments, and building engineering. Their services encompass engineering, project management, construction management, and commissioning qualification validation support. PTD-CS caters to industries such as pharmaceutical, biotechnology, medical, microelectronics, food, and nanotechnology.