Meet the Leaders of Drew Water Technologies

Drew Water Technologies has a long history of successful leadership, dating back nearly a century. In a constantly-changing economic and industrial environment, corporate leadership has steered the company toward a bright future of sustainable profitability and worldwide growth.


Frank J. Monteiro

Frank was appointed President and Chief Executive Officer, as well as a Board member of Drew, in conjunction with Court Square Capital’s acquisition of the company in June 2019. From 1998-2013, Frank held various positions within MacDermid Incorporated, a global specialty chemicals company, including Treasurer, Vice President of Finance, and eventually Chief Financial Officer. MacDermid was a Court Square portfolio company from 2007-2013 which was sold to an investor group and went public on the New York Stock Exchange under the name Platform Specialty Products in October 2013. At that point, Frank was appointed Chief Financial Officer of Platform Specialty Products and served in that position until 2015. Frank spent his last two years at Platform as the Chief Operating Officer of MacDermid Performance Solutions, a $2.0 Billion portion of the Platform portfolio. In 2017, Frank retired from MacDermid Performance Solutions and started Brass Axe Capital, an investment fund and consulting firm that holds various investment positions in the industrial, consumer, and retail market space. He holds a B.S. in Accounting from Bentley University.


Lawrence C. Sherman

Larry Sherman is the General Manager of Drew Water Technologies responsible for its operations.  Larry has a rich history of exceeding customer expectations. Drew establishes customer relationships via long-term partnerships with a strong return on investment. We "Simplify then Amplify" proven reliable technologies easily implemented and understood by our customers.
Larry started his career at Olin Water Services and held various positions of increasing authority in Olin Corporation including Director, Business Development, Director, Olin Water Technology, and Director Middle East Operations. He is a patent holder. Larry founded and operated  WaterOne Tech, LLC for over 15 years, a very successful water treatment company. Larry holds a B.S in Chemistry from The University of Connecticut, M.S. in Marketing from The American University, Washington D.C.,  He is a Graduate of The Penn State Program for Executive Development and University of Michigan Management of Managers. 

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Don Cullen

Don Cullen joined Drew as the Senior Vice President of Innovation in early 2020. In his 30 years as a research chemist, Don connected the dots from innovation management and industry consortia leadership to B2B marketing and technical communications. Don studied Chemistry and Management of Technology at Rensselaer Polytechnic Institute, where he was inspired to utilize chemistry as a tool for positive impact on a global scale. At Drew, Don leads a renewed focus on Innovation, connects Strategic Marketing as a cross-functional resource, and commits to effective Communications to better serve our mission-critical global partnerships.