About Us



It’s all about SAFETY. All of D’Allessandro Corporation’s training programs and daily operations are carried out in accordance with the latest OSHA safety and health regulations. We strive for excellence in providing a safe and healthy work environment for our employees and the clients we serve. D’Allessandro Corp. is a member of OSHA Construction Roundtable Alliance and Utility Contractors Association of NE, Inc.

In addition to maintaining the highest safety standards, our employees are expected to give 100% when on the job. We encourage our team of highly-skilled professionals to be responsible and responsive, demonstrate initiative and always take that extra step to be sure our clients are satisfied.



It all started 30 years ago behind an old wooden desk in a two-room apartment with founder Jon D’Allessandro, one employee and a 580E Case loader backhoe. Back then, Jon had a vision of what he wanted his company to be – a team of highly-skilled construction professionals who were reliable, competent, experienced and who would do whatever it took to get the job done right.

Since then, that vision has been realized many times over. D’Allessandro Corp has become a respected leader in the construction industry through the expertise and efforts of a loyal, dedicated team. D’Allessandro Corp’s attention to detail and focus on customer satisfaction has brought exponential growth, many industry awards and has earned the utmost respect from clients and peers alike.

The picture on the left portrays an open cut repair to the Needham Sewer Force Main across Rt 128, taken in 1994.




Jon D'Allessandro


Derek Grossi

Sr. Project Manager

Read Bio

Derek received his Bachelor of Science degree in Environmental Engineering from Syracuse University, and is equipped with an impressive eighteen years of experience in construction and utility work. He has been a Project Manager at D’Allessandro Corp. for over three and a half years. In his free time, Derek enjoys spending time with his family, along with watching and playing sports.

Peter Piantedosi

Project Manager

Read Bio

Peter has over twenty-five years of experience in the construction industry, with expertise in excavating, site, utility, road and paving work. Prior to joining D'Allessandro Corp., Peter owned his own construction company, which employed twenty-five people. Peter specializes in residential sub-divisions and other private jobs.

Dennis Woletskas

Operations Manager

Patrick O'Malley

Project Manager

Read Bio

Patrick is a Project Manager at D’Allessandro Corporation. He received a Bachelor’s Degree in Civil Engineering Technology from UMass Amherst, and a Master of Engineering in Ocean Engineering from Texas A&M University.

Ian Jardin


Read Bio

Ian holds two Bachelors of Science degrees in Engineering (Chemical & Ocean) from URI as well as an MBA from UMass Dartmouth. Prior to joining D’Allessandro Corp., he worked in environmental regulations centered around the greater Providence, RI area for ten years.