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Greater Boston/
New England:
433 Main St.
Suite 4
Hudson, MA 01749

Cape and Islands:
10 Charles Street
Sandwich, MA 02563

Phone and Fax:
(781) 287-0077


About TES

Our Mission

With careful consideration of each Client’s expectations, schedule, and budget, we provide exceptional value for our Clients by developing creative and innovative engineered solutions to building-related and structural challenges.


Our Team

J. Matthew Tripi, PE
Matt founded TES in 2003, after working for Simpson Gumpertz & Heger of Waltham, MA, and Construction Program Management, Inc. of Scottsdale, AZ. He holds a Bachelor of Architectural Engineering Degree from Penn State University and a Master of Civil & Environmental Engineering from MIT.

Matt's background includes structural design and investigation, foundation design, temporary support design, project management, structural testing, building information systems programming, fiber reinforced plastics research and design, and structural failure analysis including litigation support.

Matt oversees TES business operations and manages its structural design and investigation projects. He is licensed in Massachusetts, New Hampshire, and Pennsylvania.

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Simon F. Shipley, PE
Staff Consultant
Simon joined TES in 2010 after working more than 24 years with Simpson Gumpertz & Heger of Waltham, MA. He holds a Bachelor of Science degree from Birmingham University in England, and a Master of Structural Engineering Degree from Cornell University.

Simon's diverse background includes building envelope inspection, investigation, and design. He has extensive experience in building stone masonry technology, construction project management, difficult / special access projects, remote monitoring and building information systems, and analysis of structural failures including litigation support. He has authored numerous papers and journal articles on building envelope failures and investigation techniques, and has served as Task Group Chairman on ASTM Committee E06.55 - Standard Practice for Industrial Rope Access, a facade access technique which, on certain projects, offers significantly lower costs than conventional access methods.

At TES, Simon oversees building envelope investigation and remedial design projects in the eastern United States. Simon is a registered professional engineer in Massachusetts and Florida.

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William O. Bishop, PE
Senior Advisor
Bill has been working with TES since 2007, while simultaneously maintaining a private practice as a sole practitioner. He holds a Bachelor of Science Degree from Southern Massachusetts University, and a Master of Science Degree in Civil Engineering from MIT.

Bill brings more than 40 years experience with structural and building envelope inspection, investigation, and design projects. He has extensive experience in the design and analysis of facade structural systems, including: light-gauge metal framing, precast concrete, architectural metal panels, and exterior insulation and finishing systems (EIFS). His background also includes: design and investigation of structural systems and foundations for numerous buildings throughout New England, design of temporary support structures for oil spill cleanup sites, and analysis of structural failures for litigation support.

Bill serves as a Senior Advisor and peer reviewer to TES on both structural and building envelope projects. Bill is a registered professional structural engineer in Massachusetts, Connecticut, Rhode Island, New Jersey, and Florida.

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Carlos Henriquez, EIT
Engineering Staff
Carlos joined TES in 2017, and holds a Bachelor of Science Degree in Civil Engineering with a concentration in Structural Engineering from the University of Maine.

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