
Charles C. Brown, P.E.
Senior Principal, President
Charles C. Brown has 40 years of experience as a structural engineer. His career includes design and oversight of a multitude of projects including educational facilities, hospitals, shopping centers, public safety, waterfront, residential, museums and historic restoration. Having worked on projects in over twelve states, Mr. Brown is currently registered in four states. He has been a principal at GNCB for 20 years and has led the firm as President for the last five years. Mr. Brown is involved in mentoring the next generation of AEC professionals and has served as an adjunct professor and lecturer on structures and construction engineering at institutions including the University of Hartford, Yale University, and Rensselaer Polytechnic Institute.

Richard A. Centola, P.E.
Principal, Vice President
Richard A. Centola has over 30 years of experience designing concrete, steel, masonry, and wood structures nationally and internationally. Mr. Centola has managed projects of all sizes in a variety of sectors and has extensive field experience on large construction projects. This allows him to offer innovative design and construction solutions for both new design and adaptive reuse projects. He is responsible for the firm’s computer operations and was instrumental in converting the office from AutoCAD to Revit.

Thomas Curry Jr., P.E., S.E.
Principal, Treasurer
Tom Curry, Jr. joined the GNCB Team in 2021. His experience includes design and construction administration for a variety of low-rise, mid-rise, and high-rise building structures. Mr. Curry brings extensive knowledge of local and national building codes to the Team as well as experience with progressive structural systems. He is integral to GNCB’s technical standards and quality assurance programs.

Roxanne L. Brown
Engineer - Project Manager
Roxanne Brown joined the GNCB Team in 2001. In addition to her structural engineering experience, she has a varied background in the AEC industry including residential, preservation, and geotechnical projects. Ms. Brown’s extensive design and construction knowledge are utilized for a number of GNCB’s flood plain shoreline projects and luxury residential projects. She is experienced with field investigation, design, analysis, and construction administration for these uniquely challenging structures.


Mikena Nuhfer, E.I.T.
Engineer
Mikena Nuhfer joined the GNCB team in 2023. She analyzes and designs for structures including steel, concrete, timber, and masonry. Ms. Nuhfer also Conducts Condition Assessments as well as Coordinating with in-house staff, and architectural and other clients to complete design work.

James Schmittberger
Project Manager - Technical Services
James Schmittberger joined the GNCB Team in 2001. Mr. Schmittberger came to the firm with Computer-Aided-Design experience in the architecture and construction sectors making him a uniquely qualified CAD Specialist and a great asset during the formulation of Construction Documents. In addition to his responsibilities as a CAD designer, Mr. Schmittberger assists in field investigation and documentation for existing structures using photogrammetry and LiDAR technology. He operates GNCB’s drone as an FAA-Certified Drone Pilot.

Rhonda Spencer
Office Manager
Rhonda Spencer has been with GNCB since 1984. She is responsible for the daily operations of the firm including human resource procedures and directly handles all financial matters such as client billing, accounts payable, payroll and banking. Ms. Spencer is also involved with GNCB’s marketing and public relations efforts.

Shelly Micoletti
Administrative Assistant, Corporate Secretary
Shelly Micoletti joined the GNCB team in 2002. She is responsible for performing administrative duties for Principals, Engineers and Project Teams at GNCB. Ms. Micoletti also provides services for clerical duties, compilation of project proposals and assists with GNCB’s marketing and public relations efforts.