About John G. Johnson
Leadership
JGJ’s leadership team sets the tone for our people-centered culture.
Dedicated to our clients, employees, and communities.
We have diverse backgrounds and different roles, but we’re unified in our approach to how we work and how we treat our clients and each other.
We’re here to help our clients’ organizations succeed and to help our employees grow. And we’re here to make sure the work we do at JGJ is always guided by our four simple core values:
Do the Right Thing, Solutions Driven, Proactively Collaborative, and Dedicated to Success
Our leaders are actively involved in the firm’s projects to make sure our clients are getting the value they expect from us, and to make sure that our employees are supported and mentored.
When you work with us, we take personal responsibility for making your project a success.
JGJ PEOPLE
Our Leadership Team
Marty Weber
PRESIDENT
Marty Weber is President and visionary of John G. Johnson Construction, leading the company with a forward-thinking approach that drives growth and innovation. With over 35 years of experience in the construction industry, he has developed deep expertise in general contracting and construction management throughout Northeast Ohio.
Marty is dedicated to building and maintaining strong industry relationships, collaborating with clients to bring their visions to life from preconstruction planning through project completion. His passion for problem-solving and mentorship is evident in his commitment to guiding both clients and JGJ’s team members toward success. Under his leadership, the company continues to evolve, delivering high-quality projects that shape communities and exceed expectations.
Outside of work, Marty enjoys fishing, boating, skiing, and hiking with friends. He has a passion for learning about and improving his overall health and fitness—along with collecting and sharing great wine with family and friends.
Mike Weber
VICE PRESIDENT OF CONSTRUCTION
As Vice President of Construction at John G. Johnson Construction, Mike Weber oversees company-wide operations, staffing, and recruitment while ensuring project execution. With nearly 30 years in the industry, he brings a wealth of experience to every phase of construction, from preconstruction planning to fieldwork.
Mike’s career in construction began at John G. Johnson during summer breaks, working in the field as a carpenter before advancing into estimating, project management, and ultimately ownership. His hands-on experience gives him a unique perspective on project challenges, and he thrives on tackling complex builds that require innovative solutions and strong team collaboration.
Beyond his leadership role, Mike is an avid outdoorsman who enjoys spending time on the water—especially when fishing.
Anthony Valencic
VICE PRESIDENT OF PREDEVELOPMENT
As Vice President of Predevelopment, Anthony Valencic plays a vital role in guiding projects from concept to reality. He works closely with owners and design teams to provide comprehensive preconstruction services, including cost estimating, value analysis, and scheduling. His knowledge in conceptual design and constructability, combined with a strategic understanding of the bidding process, has been instrumental in strengthening JGJ’s preconstruction department.
Outside of work, Anthony enjoys spending time with his wife and four children.
Beth Anne Sullivan
VICE PRESIDENT OF FINANCE & ADMINISTRATION
As Vice President of Finance & Administration, Beth Anne Sullivan provides strategic leadership across the company’s financial and administrative operations. She oversees project accounting, payroll, compliance, and information technology, ensuring seamless integration between finance and project management. With over 30 years of business management experience, Beth brings a strong foundation in organization, communication, and customer service to her role.
Beth is dedicated to mentoring her team and fostering professional growth, working closely with employees to support their development. She has played a key role in strengthening the collaboration between finance and operations, helping project managers and engineers maintain financial accountability and project success.
Outside of work, Beth enjoys spending time with family and friends and gardening with her husband.
Explore Our Work
WORK WITH JGJ
Contact Us
Work with a team that cares— Contact us to make your project a success.
216.938.5050
1284 Riverbed Street, Cleveland, Ohio 44113