Tom McNamara, President & CEO
A third-generation contractor and the grandson of Irish immigrants, Mr. McNamara has contributed to more than 1,000 construction projects across commercial, industrial, residential, and institutional markets. Collectively, these efforts represent billions of dollars in successfully delivered work. With extensive experience spanning both public and private projects, he brings a deep understanding of modern construction methods and a practical, solutions-driven approach to complex challenges—tailoring strategies to the needs of each project.
Mr. McNamara earned a Bachelor of Science in Electrical Engineering from the University of Central Florida (UCF) and completed additional graduate-level coursework in engineering project management. He holds licenses as a Florida Building Contractor, Electrical Contractor, Underground Contractor, Fire Contractor, SWPPP Inspector, and Florida Certified Burner.
Committed to giving back, Mr. McNamara is actively involved in the Central Florida community. He currently serves on the UCF Board of Trustees and has previously served on the UCF Athletic Board of Directors and the UCF Foundation Board. He also founded UCF Kingdom NIL. His leadership and service were recognized with the 2022 UCF Alumni of the Year Award.
In addition to his construction work, Mr. McNamara is involved in several businesses focused on the manufacturing and distribution of fishing rod components for customers across the United States and international markets. He lives in Central Florida with his wife, Stacey, and their three daughters.
Tim Bayer, COO
Tim joined the SDC team in 2017 as a Project Manager and has risen to be SDC’s Cheif Operating Officer. In Central Florida, he previously held leadership positions for large heavy highway contractors and local civil utility contractors. Tim focuses on new client development and engagement. He oversees projects from contract to completion while managing budgets, estimating, plan takeoffs, initiating and negotiating change orders with clients, scheduling subcontractors and suppliers and resolving job issues. Tim is a graduate of the University of Kansas.
Shane Cox, VP of Estimating
Shane joined the SDC team in 2019 as Vice President of Estimating. In Central Florida, Shane previously held senior estimating positions for large national and multinational civil heavy highway contractors. Shane is responsible for preparing and/or coordinating the preparation of full estimates on large and complex projects as required by client’s documents and provides complete conceptual and total bid price estimates. Shane is a graduate of the University of Florida with a BS in Construction.
David Leehy, CPA CFO
David joined the SDC team in 2023 as Chief Financial Officer. He previously held leadership positions in the Midwest and Southeast states for general contractors, subcontractors, railroad construction and utility contractors. David focuses on the company’s financial position and brings 30+ years of construction experience to the team. As a Certified Public Accountant, David oversees all financial matters and is dedicated to ensuring financial stability and fostering innovation within our team.
Chris Stelly, PLS, VP of Survey
Chris joined SDC in 2020 as the company’s VP of Survey. As SDC’s on-staff PLS, Chris supervises SDC’s field survey crews and the office-based technical survey staff. The survey staff is responsible for the utilization of project controls, project 3D modeling, GPS equipment controls, field collection of as-built data, and computer software in project assignments. In addition, Chris is responsible for all aspects of project control including, but not limited to, field data collection, topographical surveys and construction stakeout.
Ronnie Yelvington, VP of Construction
SDC welcomed Mr. Yelvington to our team in 2020, where he brought over 30 years of valuable construction experience in Central Florida. He has played a pivotal role in several other heavy civil firms in the region, making him an exceptional addition to our team. His specialization in heavy highway construction, commercial construction, and private developments gives him a comprehensive understanding of plans, specifications, shop drawings, and sub-trades’ scope of work.
Mr. Yelvington is proficient in pre-planning subcontractors, materials, look-ahead scheduling, daily reporting to the project manager throughout the project, and cost control, making him an essential asset to our team. His strong technical, communication, and problem-solving abilities, along with his dedication to completing projects on time, and within budget while adhering to OSHA and Company safety guidelines, ensure successful project outcomes.
Ed DeVincenzo, Paving Manager
Ed joined SDC in 2019 and brings with him over 35 years of asphalt paving experience. Prior to joining SDC, Mr. DeVincenzo installed, operated, and maintained many of the asphalt plants in the Central Florida market. With a lifetime of specializing in flexible asphalt pavement, Ed has a complete understanding of paving from mix designs, manufacturing, transportation installation, local and state FDOT standards for his work.
Pete Willson, General Superintendent
Pete is a General Superintendent with 20+ years of experience in heavy civil construction, focusing on large-scale infrastructure projects such as highways, bridges, and utilities. Highly skilled in all aspects of project management, from planning and scheduling to overseeing subcontractors and ensuring safety compliance. Strong expertise in interpreting blueprints, managing materials, and maintaining cost control. Known for excellent leadership and communication abilities, with a proven track record of completing projects on time and within budget. Committed to upholding OSHA and company safety standards, delivering high-quality results, and driving project success through effective teamwork and problem-solving.
Chuck Reed, General Superintendent
Mary Eberhardt, Business Development & Communications
Ms. Eberhardt is responsible for business development and company communications at SDC. Her primary duties include identifying new business opportunities, building and maintaining strong relationships with both prospects and existing clients, and collaborating with company leadership to shape business strategy and define objectives. She also evaluates current business performance and works to maximize the company’s reach and potential.
Mary helps produce SDC’s monthly employee newsletter, SDC Works, which fosters internal communication and breaks down silos within the organization by sharing updates and news from different divisions across the company.
