Leadership Team

Leadership for the Future


After joining the company in 1983, Mr. Boyce has dedicated his career to Microbac Laboratories, Inc. As executive vice president, he worked alongside his father, Microbac founder A. Warne Boyce. In 1993, Boyce was named Microbac’s president & chief executive, a title he held until becoming chairman in 2015. 

An active member of the laboratory community, Boyce was elected chair of the American Council of Independent Laboratories (ACIL), completing his term in 2013. Previously the chairman of A2LA (American Association of Laboratory Accreditation), he has served on the Board for over a decade. Boyce served on the Board of Trustees at Waynesburg University and currently is chairman of the Admissions Committee of the Board of Trustees of Hampden Sydney College, his Alma Mater, and is on the Board of the Weekapaug Fire District in Westerly, Rhode Island.



Gary Evans joined Microbac in 2014 as senior vice president, business transformation, and is responsible for the company's supply chain. He is leading Microbac through a transformation in supply chain and purchasing best practices resulting in increased profitability. Evans was a 30-plus year employee and executive at The PNC Financial Services Group where he led many functions, including business transformation and supply chain management. He brings extensive experience in expense management, process improvement, and strategic planning.

Mr. Evans is a graduate of the University of Pittsburgh with a BA in Economics/Information Technology.



Derrick Friedrich joined Microbac in 2017 as a Senior Vice President of Environmental Services and assumed responsibility of the Life Science group in 2018. His 25 years of laboratory management experience empowers him to confidently deliver an exceptional end-to-end customer experience. Mr. Friedrich is responsible for all Microbac Environmental and Life Science laboratories – including full P&L, sales, cost management, efficiency improvements, and strategic direction.

Mr. Friedrich received his B.S. in Chemistry and Bio-Medical Science from St. Cloud State University.



Tamara Grecco was appointed senior vice president in 2015 after joining Microbac in 2011 as controller. Grecco is responsible for all finance and treasury-related activities for all 30 Microbac locations. She brings 25 years of financial experience in various industries including public accounting, banking, real estate, settlement services and vendor management, with a strong focus on cost control and financial strategy.

Ms. Grecco earned a BS in Accounting cum laude from Robert Morris College. She is also a Certified Public Accountant.



Susan Gregro joined Microbac in 2015 and became the Senior Vice President of Food & Nutrition in July 2017. Ms. Gregro has over 25 years of Food Safety, Quality and Laboratory Operations experience. Her food industry experience includes markets from farm to fork, including consulting and crisis resolution. She has been accountable for the continuing improvement and safety of food products, food processing and laboratory environments. Ms. Gregro is responsible for all Microbac Food & Nutrition laboratories – including full P&L, sales, cost management, efficiency improvements, and strategic direction.

Ms. Gregro earned her B.S. degree in Environmental Science / Biology from Kutztown University and her CP-FS credentials through NEHA.



Elizabeth Jones joined Microbac in 2017 as senior vice president of People and Culture. Her responsibilities include professional development, organizational design and shaping a "One Microbac" culture to support service excellence. Jones brings progressive experience in all aspects of human resources from multiple industries including manufacturing and oil and gas. She earned a BS in Organizational Leadership cum laude from Robert Morris University and holds a Certificate in Labor and Employment Relations from Penn State University.