Since 1945 R. W. Sullivan, a family business, has built lasting partnerships grounded in trust, expertise, and a client-focused philosophy. This commitment is reflected in the fact that most of our work is with repeat clients. We design future‑ready engineering solutions for facilities that are both reliable and energy‑efficient, ensuring long‑term sustainability and value.
Our team brings deep experience, with over 50% having been with the firm for more than 10 years and a third for over 15. Our exceptional retention rate and deep institutional knowledge provide value to clients and partners through continuity of expertise.
With nearly 100 professionals in our Boston office, we maintain a strong presence across New England and the East Coast. Holding professional registrations in over 30 U.S. states, we offer deep local expertise with a broad national reach.
Dedication
Our engineering team listens to our client’s needs and develops tailored solutions to the project’s unique requirements. We work to ensure the MEP systems are designed to meet the specific project goals including function, form, budget and schedule.
Sustainability
Our LEED Accredited Professionals constitute the majority of our design team. Their expertise in green building systems, utilization of the latest technologies and creative thinking provides strategic sustainable design solutions.
Teamwork
We have found that a holistic approach to engineering services, where all trades collaborate with one another, produces the highest quality design. We utilize innovative engineering tools and technologies to facilitate coordination between all engineering and architectural disciplines.
History
Originally founded in 1945, McCarron & Sullivan began as an engineering firm providing mechanical, electrical, plumbing and fire protection engineering services to institutional clients in the greater Boston area. In 1956, Robert W. Sullivan began an independent practice focused on plumbing, fire protection, site and sanitary engineering. In the mid 1990’s Robert W. Sullivan, Inc., became R.W. Sullivan Engineering and the firm’s services were returned to include full mechanical, electrical, plumbing, and fire protection design services, as well as building code consulting. With the firm’s new identity came a new generation of leadership and new engineering technologies, but the tradition of excellence has remained absolute for 75 years. R.W. Sullivan Engineering is a third generation family business.
Leadership
Paul Sullivan, PE, LEED AP
President
Paul has served as President of R.W. Sullivan Engineering for the past 25 years. He first joined R.W. Sullivan Engineering in 1991 and started the firm’s Code Consulting Group.
R.W. Sullivan Gives Back – Philanthropic Endeavors
R.W. Sullivan Engineering (RWS) focuses much of our time and energy in our community. Our leadership and team members are committed to volunteering their time to some of the region’s most noteworthy philanthropies.
We encourage our 95+ staff members to get active in the community.