Andover, MA Thirty-six years after completing its first job at the Boston Marriott in Copley Sq., JM Electrical Company, Inc., (JME) has hit a major milestone with the completion of its 20,000t^h project. The landmark project was carried out for Sarepta Therapeutics at the global biotechnology company’s gene therapy lab.

The Lynnfield-based electrical contractor has grown from a small firm with two employees to a major force in New England with a staff of 180 that contribute to some of the most high-profile construction developments in the region, from Millennium Tower to projects at Cambridge Crossing, the Seaport District, Kendall Sq., and Assembly Row.

Paul Guarracino, who began his career in 1972 as a general foreman at the Watertown headquarters of the New York company, Lord Electric, transformed the company which now takes on thousands of jobs each year at colleges and universities, corporate headquarters in and around the burgeoning Innovation Districts in the Seaport and Kendell Sq., hotels and retail outlets, and hospitals, health care, and life science centers.

Despite its tremendous growth, JME remains a family affair with Paul’s three sons rising through the ranks. Today, Matthew, Principal & CEO and John, Principal& COO help lead the firm while younger brother, Andrew, serves as an Assistant Project Manager. They have also developed and retained a strong team, many of whom have been associated with the company for over a decade.

“The JME team is widely recognized for the high quality of our work in the field,” said John Guarracino. “From the start, we haven take great pride in the fact that the JME name is associated with excellence and innovation.”

In addition to a dramatic increase in the number of projects that JME undertakes annually— with 10,000 jobs completed during the company’s first quarter century in business and another 10,000 completed in the last nine years alone— the projects have become more complex as a result of new technologies and an emphasis on sustainability.

“Our clients are interested in more sophisticated, energy-saving systems which are better for the environment and for the end user’s bottom line,” said Matthew Guarracino. “Eighty percent of our portfolio represents the installation of HVAC controls that manage heating cooling, lighting, and air quality, reducing a building’s environmental impact and increasing energy efficiency. Many of the projects we work on earn LEED Certification, a designation that has grown in importance here and across the country.”