Twenty-five years ago when the company was first established, DassTab began as a firm specializing in the pharmaceutical sector. It was in this environment, with its stringent guidelines and requisite Good Manufacturing Practices (GMP), that DassTab developed its high level of accuracy and diligence. DassTab offers a wide variety of services for pharmaceutical companies that includes seasonal facility validation and thorough testing and balancing work for HVAC changes. 

​

​