Leadership at DTB

Dayton T. Brown, Jr.
Chairman and Chief Executive

Dayton T. Brown, Jr. has been working at Dayton T. Brown, Inc. since 1951, shortly after his father, Dayton T. Brown, Sr., founded the Company in 1950. In his early career, he held various positions in the Sheet Metal Manufacturing and Engineering & Test Divisions, including Technical and Sales Management. In 1964, he became Vice President and Division Manager of the Manufacturing Division. Mr. Brown transitioned into the role of President in 1969 and became Chairman of the Board of Directors in 1978, upon his father’s passing. Mr. Brown currently serves as Chairman and Chief Executive and is responsible for the overall operations of the Company – a role that he has held for almost 40 years.

Tom Zimoulis –
Senior Vice President, Engineering & Test Division

Tom Zimoulis began his employment with Dayton T. Brown, Inc. in 1976 as a Test Engineer. After accepting a role with General Instruments as a Test Laboratory Manager in 1985, he returned to the Company in 1990, eventually becoming the Supervisor of Dynamics and Environmental Testing. Mr. Zimoulis eventually moved up to become the Manager of Dynamics and Environmental Testing, followed by Lab Operations Manager. In this role, Mr. Zimoulis was instrumental in gaining new business for the Company, which ultimately helped him transition into his current role of Senior Vice President and Division Manager of the Engineering & Test Division. He earned a Bachelor’s degree in Electro-Mechanical Engineering from City College of New York (CCNY). Mr. Zimoulis’ specialties include dynamics and vibration testing, environmental testing, sales, and customer service.

Robert Single –
Senior Vice President, Secretary, and General Counsel

Bob Single began his career with Dayton T. Brown, Inc. in 1979 as the Human Resources Assistant. From there, he took on many roles throughout the organization, including Director of Purchasing, Personnel, and Corporate Services, Vice President and Secretary, and Division Manager for each division of the Company at various times over the years. He currently serves as Senior Vice President, Secretary, and General Counsel. After serving three years in the Army, Mr. Single earned a Bachelor’s degree in History from SUNY Stony Brook University, a Master’s degree in Industrial and Labor Relations from NYIT, and a Juris Doctor from SUNY Buffalo. Mr. Single specializes in contracts, legal matters, security, corporate safety procedures, and import/export regulations. He is also a member of the Board of Directors of the Corporation.

William Bradshaw –
Vice President and Chief Engineer, Engineering & Test Division

Bill Bradshaw began his employment with Dayton T. Brown, Inc. in 1997 as a Structural Engineer in the Engineering & Test Division after working several years in the same capacity with Northrop Grumman. He later went on to become the Structural Engineering Supervisor, Design Manager, and Engineering Manager. Mr. Bradshaw currently serves as Vice President and Chief Engineer of the Engineering Test Division. He earned a Bachelor’s degree in Civil Engineering from Bucknell University and a Master’s degree in Applied Mechanics from Polytechnic University. Mr. Bradshaw also has his NYS PE license. His areas of specialty include stress and structural analysis, along with static and fatigue testing.

Angela Chewning –
Vice President of Human Resourcess

Angela Chewning began her career with Dayton T. Brown, Inc. in 1981 as the Benefits Administrator. Throughout her tenure, she held many roles in the Human Resources department, including Human Resources Assistant, Employment Manager, and Human Resources Manager. She currently serves as Vice President of Human Resources. Ms. Chewning earned a Bachelor’s degree in Business Administration from Dowling College, a NYS Advanced Certificate in Labor/Management Studies, and a Master’s degree in Industrial and Labor Relations from SUNY Stony Brook University. Her focuses are high-level recruiting for very specialized technical roles, employee relations, human resources law, and benefits and compensation.

James Kelly –
Senior Vice President, Technical Services Division

Jim Kelly began his relationship with Dayton T. Brown, Inc. in 1983 on a part-time basis in the Manufacturing Division while he was still attending college. After graduating, he spent the first part of his career in various sales and marketing roles for software companies, such as SBA Technologies, Quality Environmental, and Appgen Business Software. Mr. Kelly returned to the Company in 2008 as a Business Development Manager in the Technical Services Division. Soon after, he became the Vice President of Sales in the Technical Services Division, followed by Senior Vice President of Corporate Sales and Marketing. Mr. Kelly currently serves as Senior Vice President and Division Manager of the Technical Services Division. He earned a Bachelor’s degree in Computer Science from Dowling College. His specialties include technical services, operations, sales, and marketing.

Stephen Marini –
Senior Vice President and Chief Financial Officer

Steve Marini began his employment with Dayton T. Brown, Inc. in 2010 as the Corporate Controller. He soon transitioned into the roles of Treasurer and Chief Financial Officer. Currently, he serves as Senior Vice President and Chief Financial Officer and is responsible for corporate administrative functions, as well as contracts and quality. Mr. Marini began his career at PricewaterhouseCoopers as an assurance associate, eventually attaining the position of an assurance Senior Manager in the Technology industry. He is a licensed CPA in the states of New York and Massachusetts. Mr. Marini earned a Bachelor’s degree in Business Administration with a concentration in Accounting and Finance from Boston College. His specialties include financial and government compliance, as well as pricing strategies.

Thomas Wenzler –
Vice President, Technical Services Division

Tom Wenzler began his career with Dayton T. Brown, Inc. in 1988 as a Program Manager in the Technical Services Division. He later went on to pursue other roles, such as Engineering Writing Manager and Senior Vice President and Division Manager of the Technical Services Division. Mr. Wenzler currently serves as Vice President for the Technical Services Division. He has a Bachelor’s degree in Electrical Engineering and a Master’s degree in Management, both from the Polytechnic Institute of Brooklyn. Mr. Wenzler specializes in technical writing and logistics services and focuses on the estimating, operational, and financial aspects of the Technical Services Division.

James F. Maggipinto –
Vice President of Procurement/Facilities

Jim Maggipinto began his career with Dayton T. Brown, Inc. in 1994 as the Director of Purchasing after holding a similar role with Northrop Grumman. In 2002, he was named Vice President of Procurement, where his role expanded to include responsibilities for overall purchasing and subcontracts, as well as facility upgrades and maintenance. Mr. Maggipinto currently serves as Vice President of Procurement and Facilities for the organization. He earned a Bachelor’s degree in Marketing from LIU Post and a Master’s degree in Business Administration from Hofstra University. Mr. Maggipinto’s focuses include the acquisition of large Company Capital Expenditures, negotiation of subcontracts, purchasing, and facilities maintenance and improvement.