Meet the BMarko Team
Antony Kountouris
Chief Executive Officer
Matt McConnell
VP of Sales
Brad Henderson
Production Manager
Ben Silewicz
VP of Project Management
Gabby Williamson
Procurement Manager
Christina Parker
Sales Administrator
Cade Slayton
Software Engineer
Elena Bondari
Controller
Tyler Wise
Marketing Manager
Antony Kountouris
Chief Executive Officer
Antony Kountouris spent the first 18 years of his life in Athens, Greece. Seeing a much greater opportunity in the States he decided to study abroad.
While obtaining a bachelor’s degree in Mechanical Engineering from UC San Diego, Antony met Boris Jerkunica, the Chairman of BMarko, and teamed up with him to start the company. Boris, being a successful software entrepreneur, saw a construction industry that trailed innovation and technology by a hundred years. He identified the General Contractor model as a risk mitigation approach as opposed to a value creation approach, common in the software industry. The two of them started the journey to bring true value to construction through highly innovative approaches.
His favorite part about working for BMarko Structures is seeing the modes that his coworkers operate in; challenging all industry norms, asking a ton of questions, and bringing loads of passion towards the company mission.
Outside of work, Antony enjoys reading great books, playing not-so-great tennis, and learning new things.
Matt McConnell
VP of Sales
Prior to joining BMarko, Matt McConnell spent time in the State of Georgia’s Industrialized Buildings Program where he learned a great deal about modular construction.
His interest in the industry began during his time with the Georgia Department of Community Affairs where he reviewed and approved modular construction plans. Matt was also part of a team that created regulations for shipping containers to be included in the State of Georgia’s Industrialized Buildings Program and that’s how he initially crossed paths with BMarko Structures.
Since joining the team in 2017, he has embraced working in a team that faces challenges head-on and is constantly improving and innovating.
Brad Henderson
Production Manager
Brad brings over 30 years of modular building expertise, rooted in his early experience in factory setup and production management in northern Indiana—a region known for its strong manufacturing tradition. As the owner of a successful construction company, he developed a reputation for operational excellence, driven by his organized, hands-on leadership style and the high-performing teams he built.
Drawn by the innovation and rapid growth at BMarko Structures, Brad saw a unique opportunity to contribute to a dynamic company in a transformative industry. This led him to trade the snowy Midwest for the warmer climate and exciting future ahead.
Ben Silewicz
VP of Project Management
Ben Silewicz brings nearly a decade of experience in the modular industry to his role as VP of Project Management at BMarko Structures. With a background that spans both steel and wood modular construction, Ben’s career has been rooted in problem-solving, process improvement, and delivering efficient project outcomes.
His journey into modular began after seeing the inefficiencies of traditional construction timelines. Drawn to the faster pace and innovation that modular allows, he quickly built a reputation for leading complex projects with precision and clarity. Prior to rejoining BMarko, Ben held leadership roles at several consulting and engineering firms, including Director of Operations at TechOps Specialty Vehicles, Project Manager at Goldratt Consulting, and General Manager at WillScot. He’s recognized as an expert in the Theory of Constraints (TOC), and his recent focus has centered on systemic performance improvement and strategic planning across complex operations.
What excites Ben most about returning to BMarko is working alongside a team he considers the best in the industry and helping build the modular all-star lineup one project at a time.
Ben holds a Bachelor of Architecture from the University of Houston. Outside of work, he enjoys spending time with his family, hiking, camping, golfing, and sailing.
Gabby Williamson
Procurement Manager
Gabby first joined BMarko Structures in 2020, bringing with her over a decade of purchasing and logistics experience from the fast-paced film industry. Her background managing high-pressure production schedules for filming locations and coordinating vendors laid a strong foundation for her transition into modular construction procurement. After a brief hiatus to explore the short-term rental industry and earn her real estate license, Gabby was drawn back to the excitement and innovation of the BMarko team in 2023.
As Procurement Manager, Gabby manages vendor relationships and oversees material procurement in order to maintain a smooth supply chain and keep projects running on schedule.
When she’s not at work, you will likely find Gabby out on the trail. She enjoys hiking and spending time in nature, often exploring North Georgia’s scenic landscapes.
Christina Parker
Sales Administrator
Her interest in the industry began when she was looking for an opportunity to use her skills in a company she could grow within once she completes her Bachelor’s Degree. She enjoyed that BMarko gave her an opportunity to see projects through from conception to delivery.
Her attention to detail, organization, follow-through, and ability to quickly build rapport are great assets to the BMarko team. She loves working with the experienced players on the team because she gets to learn something new every day and enjoys celebrating with them after completing tough projects.
She currently holds a Bachelor’s Degree in Business Administration and Technology from Valdosta State University.
Outside of work she enjoys reading about history, weekend road trips where she can add to her souvenir t-shirt collection, and attending concerts of all music types and genres.
Cade Slayton
Software Engineer
Elena Bondari
Controller
Elena is an integral part of the team and has been on board since the very beginning. She’s originally from Moldova.
She loves business process optimization and is excited to be part of a company that is transforming the normal process of the construction industry. Elena’s strongest job assets include organizing financial data in a format that tells a story and helps all units of the organization track their performance and make decisions.
Her favorite part about working for BMarko Structures is the constant changes due to the rapid growth of the company. She also enjoys the ability of the BMarko team to adopt and implement these changes.
Prior to BMarko, Elena was Chief Operating Officer at PQC International, a management consulting firm.
She holds a Bachelor’s Degree in accounting and finance from Clayton State University.
Tyler Wise
Marketing Manager
The innovative and progressive ways of modular construction were the main reasons Tyler wanted to join BMarko Structures. His favorite part about working with the team is everybody’s ability to continually learn new things and have a can-do-attitude.
Prior to his time at BMarko, he worked at a digital marketing agency.
During his time at Kutztown University, Tyler received a Bachelor’s Degree in Marketing while minoring in Supply Chain Management.
Outside of work, Tyler enjoys traveling, finding new music, frequenting comedy clubs, and cheering on Pittsburgh sports teams.
