Theresa Duffy-Diament

Founder and CEO of BQS Management Systems

BQS Management Systems and Biodiesel Quality Systems are led by Theresa Duffy-Diament. With more than 30 years of business and management consultant experience in the Quality and Biodiesel fields, Theresa has been involved with auditing, certifications, and document control, with a great deal of practical experience in the daily operation and maintenance of Management Systems. 

Over the years, Theresa’s team has become one of the top consulting firms in the QMS space, taking great pride in diving deep with every client and developing fully customized Management Systems. The scope of BQS projects have ranged from small-scale producers to globally recognized marketers throughout the US and Canada.