CES specializes in designing custom MEP/FP building systems for public and private clients across the United States. We understand that the details make all the difference. Our experts are active listeners who care about what makes your project unique. We welcome every challenge. With 25 years of experience and five offices, we will be there when you need us. Optimistic, responsive and passionate – we provide solutions that are both practical and inventive. Our success is measured by yours.

At CES we are thinkers and doers, inventors, optimists. We are immersed in finding the right solution to every problem, every time. Most of all though, we like to laugh.



With six offices, CES is able to provide our clients with seamless and responsive engineering design solutions coupled with personal one on one attention. Our company-wide collaborative atmosphere spans across all our branches with continuous open lines of communication, ensuring all of our clients are fully supported and receive the best in design and customer service for each and every project.


811 Middle Street Middletown CT 06457
(860) 632-1682

216 East 45th Street 16th Floor, NY, NY 10017
(646) 961-3999

128 Carnegie Row Suite 204 Norwood MA 02062
(617) 261-7161

Cypress Commons
1500 W. Cypress Creek Rd. Fort Lauderdale FL 33309
(954) 990-0556

17890 Blanco Road Building Two, Suite 214 San Antonio TX 78232
(210) 686-1614


5 West Mendenhall Street, Suite 202, Bozeman, MT 59715
(406) 272-0352




We take pride in where we live, work, and play. CES enjoys giving back to the community we call home, taking time to help others, and providing opportunities and educating the next generations.


CES each year participates in the Salvation Army’s Architects/ Engineers Can Challenge. Since CES started participating in 2000, the firm has donated over 150,000 food items to support the local food pantry. Click here to see the impact our can drive has every year!

CES also is proud to sponsor amazing organizations such as the LUPUS Foundation of Connecticut, the Middletown Police Department, and organizations our employees and their families are involved in such as sports teams, girl/boy scout troops, and charity walks.


Each summer, CES gladly and eagerly employs college students through internships. We understand and appreciate the hard work and dedication it takes to graduate with that engineering degree! We strive to educate and mentor each student through hands-on design and field experience with our Senior level staff, giving them a well-rounded understanding of what we do as design engineers and sending them off to their next semesters with more tools and excitement to help them earn their degrees.

Every October since 2006, CES has held a charity golf tournament, inviting our clients, vendors, and friends to join us for a fun day of golf, food, and prizes. Up until 2009, CES picked a local charity to donate our proceeds to. After the passing of George V. Keithan, Sr. (Father to George V. Keithan Jr, CEO of CES) CES created a scholarship fund in his honor. Each year, all proceeds from our golf tournament go into the scholarship fund and through an application processes, students from Xavier High School and Mercy High School who wish to pursue engineering degrees are awarded scholarships. To date, CES has provided scholarships to over a dozen students totaling over $80,000.


During the summer months, CES participates in the AEC Industry Softball league. Our team gets together every Thursday night and participates in lighthearted, fun, softball against our clients and competitors.

CES also holds impromptu employee organized activities that have included Paint Nites, meeting up for some trampoline fun at one of the local indoor trampoline parks, motorcycle rides, ski trips, fishing trips, bar crawl for charity, and a company-wide scavenger hunt.

You need to love where you work and love what you do to perform at your best so we encourage everyone to work hard and have fun!