About Us

Mark Puhnaty serves as the Principal Engineer at E&A, a company specializing in mechanical, electrical, plumbing, and fire protection engineering services. He holds a Professional Engineer license and has been providing engineering services across a wide range of states, including Massachusetts, Connecticut, Georgia, Alabama, and Florida. With more than a decade of experience in the field, Mark has a proven track record in designing mechanical, electrical, plumbing, and fire protection systems for a diverse array of projects, including those in the commercial, industrial, residential, healthcare, and government sectors.  

Since entering the consulting engineering field in 1981, Bob Haffeman has worked on over 1,500 projects, serving as the Engineer of Record (EOR) on more than 500 of them. His project experience spans a wide range of industries, from private and industrial to commercial, healthcare, educational, and government sectors. The complexity of his projects varies, but his expertise ensures that each is approached with precision and the highest standards of engineering practice.

With over four decades of experience, Bob has become a trusted leader in electrical engineering, offering specialized expertise not only in design and implementation but also in critical forensic investigations. His comprehensive experience ensures that he brings valuable insight into both technical problem-solving and risk mitigation.