About Us

About Us

Jerry G. Singh
B.S. Chemistry and Microbiology
Mr. Singh has over thirty years of experience in environmental and industrial chemistry, laboratory operations, and management. His responsibilities include corporate development, enhancement of technical expertise and strategic planning. Mr. Singh is a member of several associations and committees, including the Michigan Minority Business Development Council, Michigan Association of Environmental Professionals and the Laboratory Practices Committee.

Frederick J. Hoitash
Director of Environmental Sciences Division
B.S. Chemistry
Graduate Studies in Chemical Engineering

Mr. Hoitash has over thirty years of analytical laboratory experience. This includes fourteen years as a founding partner of Huron Valley Laboratories, which was later acquired by RTI Laboratories. As a senior manager with RTI Laboratories, Inc., Mr. Hoitash’s role is interpret and implement client needs and establish the corresponding laboratory procedures for special projects.

David Howell
Director of Federal Programs
B.S. Chemistry and Biology

Mr. Howell takes the lead in sales for the Environmental Sciences division. He has more than thirty-seven years of sales experience, with twenty-six years specializing in environmental laboratories. Mr. Howell is responsible for developing the national sales plan, negotiating federal contracts and designing proposals.

Charles A. O’Bryan
Director of Quality Management
B.S. Biology and Medical Technology
M.S. Environmental and Industrial Health

Mr. O’Bryan was formerly a partner of the Michigan-based AAC Trinity before its acquisition by RTI Laboratories. He holds over thirty-seven years of analytical laboratory experience and twenty-nine years in management. Mr. O’Bryan is chiefly responsible for the the laboratory quality assurance program. This includes organizing internal laboratory audits, updating the standard operating procedures and reviewing technical data before its release.

Lloyd Kaufman
Director of Materials Sciences
B.S. Applied Physics and Materials Science
M.B.A. Technology Management

Mr. Kaufman has been with RTI Laboratories Inc. for over twenty-six years and has served a variety of roles. With a strong foundation in analytical methods, he has served as Quality Assurance Manager, Technology Director and now as Director of the Materials Testing Division. He is responsible for outlining and executing the division’s growth strategy, managing human resources and validating technical output.

Jonathan C. Contreras
Senior Metallurgical Engineer, P.E.
B.S. Metallurgical and Materials Engineering
M.S. Metallurgical and Materials Engineering

Mr. Contreras has been an asset to RTI Laboratories, Inc. since 2016 and serves as the Senior Metallurgical Engineer for the Materials Testing Division. He has over 8 years of experience in failure analysis amongst several other laboratory services. He is responsible for supporting laboratory personnel in metallurgical analyses as well as conducting materials performance and failure analysis investigations.

Crystal Kontos
Marketing Communications Specialist 
B.A. Integrated Marketing Communications

Ms. Kontos has been with RTI Laboratories Inc. since 2019 and serves as the Marketing Communications / HR Specialist for the Materials Testing Division. She has over 15 years of creative marketing experience in various industries. She is responsible for business growth, creating and implementing new marketing plans and creating new and better customer relationships. She also handles HR responsibilities such as on-boarding and policy procedures.

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