Threecore General Constuction Company Dayton
About

A Unified Team Delivers Improved Results

Threecore’s vision is to be a leading construction contractor built for your vision and driven to make a positive impact in our communities nationwide. We deliver industry expertise with innovative, tailored solutions and clear, transparent communication every step of the way. Our commitment to excellence and strong client advocacy sets us apart as a reliable partner in building what matters most. At Threecore, we're not just shaping structures—we're shaping communities.

Your Trusted Partner

Your Trusted Partner

Every solution is tailored to your needs because no two clients or projects are the same. We pride ourselves on being a reliable and trustworthy partner, committed to earning your confidence by consistently exceeding expectations. From start to finish, we are by your side through every challenge and milestone. With a collaborative mindset and creative problem-solving at our core, we don't just build, we build lasting relationships, successful outcomes, and spaces shaped by your goals. With Threecore, you're not just getting a contractor, you're gaining a dedicated partner focused on safely delivering quality, predictability, and your vision.

Technology & Innovation

Technology & Innovation

Our dedication to project excellence is driven by the strategic use of innovative technologies and forward-thinking solutions that elevate performance, sustainability, and overall project success. We carefully select technology to align with project goals, providing measurable benefits in speed to market, cost efficiency, sustainability, and modern construction practices. Our flexible, tailored approach ensures that every project is delivered with precision and care, meeting specific client needs and sustainability objectives. From concept to completion, we remain focused on delivering exceptional efficiency, high-quality results, environmental responsibility, and innovative solutions that position each project for long-term success.

Leading With Purpose

Leading With Purpose

At Threecore, giving back is at the core of everything we do. We believe in leading through service, making a meaningful impact on the communities where we live and work. Our commitment to creating positive change is woven into our culture, encouraging team members to contribute their time, skills, and resources. By fostering a spirit of service, we empower our people to make a difference, building stronger communities. We are proud to support causes that align with our values and help create a better future for all.

Leadership

Our leadership team brings together a forward-thinking group of dedicated, experienced professionals. United by a shared commitment to service, they lead with purpose, inspire through action, and cultivate a culture rooted in growth, integrity, and collaboration.

Pete Dumont - President Pete Dumont President
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Pete Dumont - President

Pete Dumont

With over 30 years of global construction experience, Pete is a visionary leader dedicated to advancing how capital projects are delivered. As President, he guides teams across the commercial and industrial sectors, balancing tactical execution with long-term strategy. A licensed professional engineer, Pete brings expertise in project delivery, risk management, modularization, Advanced Work Packaging (AWP), construction technology, and AI. His involvement in industry organizations such as Construction Users Roundtable (CURT) reflects his commitment to advancing capital efficiency through digital innovation and collaboration. Pete’s mission is clear: to elevate the construction industry through digital transformation, forward-thinking leadership, collaboration, and continuous improvement.

Zach Lemley - Vice President, Growth & New Markets Zach Lemley Vice President, Growth & New Markets
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Zach Lemley - Vice President, Growth & New Markets

Zach Lemley

With nearly fifteen years of experience in the industrial and distribution markets, including over eight years focused on data centers, Zach serves as Vice President of Growth and New Markets at Threecore. He brings deep expertise in strategic planning, site selection, and due diligence for large-scale distribution and mission-critical projects. Zach is known for blending creative thinking with analytical precision to help clients enter new markets, optimize performance, and scale effectively. His approach emphasizes long-term growth, strong partnerships, and forward-looking strategies that align with Threecore’s commitment to purposeful construction, client advocacy, and building with impact.

Heather Tibbitts, CSP - Director of Operations and Safety Heather Tibbitts, CSP Director of Operations and Safety
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Heather Tibbitts, CSP - Director of Operations and Safety

Heather Tibbitts, CSP

Heather has over three decades of experience; she brings unmatched expertise as a safety professional and a project manager. Specializing in construction and manufacturing, her tailored strategies address each client’s unique needs. Known for a collaborative approach, Heather works closely with on-site teams, building strong relationships, and securing buy-in to create safer, more productive workplaces. Her proactive, solutions-focused mindset and clear communication help ensure project success. Heather’s passion, energy, and dedication consistently earn recognition from clients who value her hands-on approach and proven results.

Dean Banks - Director of Client Development Dean Banks Director of Client Development
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Dean Banks - Director of Client Development

Dean Banks

With over 30 years of experience, Dean is a trusted leader in the construction industry, known for bringing both strategic insight and operational expertise to every engagement. He excels in client communication, leadership, and problem-solving, consistently building strong, lasting relationships that lead to long-term partnerships and repeat business. Dean’s commitment to understanding client goals, addressing project challenges, and guiding teams with clarity and purpose has resulted in exceptional outcomes across every stage of the construction process.

Sheri Goldstein, AIA, LEED AP, NCARB - Director of Business Development Sheri Goldstein, AIA, LEED AP, NCARB Director of Business Development
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Sheri Goldstein, AIA, LEED AP, NCARB - Director of Business Development

Sheri Goldstein, AIA, LEED AP, NCARB

With over 15 years of experience in the architecture and design industry, Sheri brings an understanding of relationship-building, strategic growth, and market positioning to her role as Director of Business Development. Known for her ability to align client goals with capabilities, she drives growth by connecting with clients and uncovering new opportunities. Sheri’s talent for fostering partnerships has made her a trusted advisor in the industry. She is passionate about connecting people, ideas, and opportunities to create lasting value and support the growth of innovative, design-focused solutions. Passionate about community engagement and sustainable development, Sheri leads with vision, integrity, and an unwavering focus on impact.

Andrew Pelhan
 - Pre-Construction Manager Andrew Pelhan
 Pre-Construction Manager
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Andrew Pelhan
 - Pre-Construction Manager

Andrew Pelhan


As Pre-Construction Manager, Andrew "Andy" Pelhan brings nearly 10 years of experience and a proven track record of driving project success through thoughtful planning and seamless coordination. Andy leads the strategic planning, budgeting, and coordination efforts that lay the groundwork for every project. With a clear vision and commitment to excellence, Andy continues to elevate our pre-construction process and create lasting value for our clients through collaboration, innovation, attention to detail, and proactive problem-solving across diverse project types.

Adam Chmiel, LEED AP, BD+C - Director of Operations and Preconstruction Services Adam Chmiel, LEED AP, BD+C Director of Operations and Preconstruction Services
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Adam Chmiel, LEED AP, BD+C - Director of Operations and Preconstruction Services

Adam Chmiel, LEED AP, BD+C

Adam brings over two decades of construction experience. He has built a distinguished career grounded in technical expertise and strategic thinking. Serving as Director of Program Management, where he leads the pre-construction team with a focus on delivering cost-effective, value-driven solutions. Adept at navigating one of the industry's most complex challenges, cost efficiency, by aligning project goals with the needs of clients, subcontractors, and internal stakeholders. He brings a deep understanding of field operations, workforce management, budgeting, and risk mitigation across commercial sectors. And, with a strong track record of improving efficiency, streamlining workflows, and building high-performing teams, He serves as a strategic partner to executive leadership and field operations alike. He approaches and balances hands-on jobsite expertise with data-driven decision-making to drive profitability, on-time delivery, and client satisfaction.