Meet the Team Behind the Projects
Experienced leadership, project management, operations, and field coordination working together to deliver high-level commercial construction projects.
Nathan Rostocil
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Nathan Rostocil leads KRC Contractors with a focus on disciplined execution, operational growth, and long-term client relationships across regional and national markets.
Robert P. Grieser
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Rob joined Kline Rostocil Construction Corporation as project manager in 1993. He has over 40 years of professional construction experience. Rob's roots have always been firmly planted in growth and building. His career path began in farming, as he earned an associate degree in agriculture from Michigan State University. As time progressed, he included general agriculture and civil engineering curriculums within his education. Diversity is the highlight of Rob's background. His career path evolved from farming to landscaping to construction. Each experience has added to his expertise and knowledge. Professionally, he has worked as project manager, superintendent and estimator for both large and small commercial projects, including hospitals, hotels, offices, condominiums, manufacturing facilities, retail centers and controlled environment facilities. As senior project manager at Kline Rostocil Construction, Rob is here to assist and manage the project managers in their roles with their projects. Rob is also a project manager responsible for the management of the on-site superintendents on each of the project sites. Most of his day involves interpreting construction documents and specifications, scheduling, ensuring specification compliance and timely project completion.
Josh Marks
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Josh joined Kline Rostocil Construction as a project manager in 2022. Josh has 20 plus years of experience in the construction industry, in both residential and commercial specialties. Prior to joining our team, Josh, previously worked as a field representative, estimator, site superintendent, project manager, and vice president of construction operations. Josh obtained a bachelor’s degree in business administration from Kent State University. Josh has lived in northeast Ohio and southern Florida. Josh enjoys spending time with his wife, three daughters, two dogs, and cat. In his spare time, he coaches youth sports and loves camping with his family. As a Project Manager, Josh will have responsibility to coordinate key aspects of the project - from pre-construction to construction and beneficial occupancy. He will take-action, as required, to satisfy responsibilities that include, but are not limited to, trade contractor coordination, workforce scheduling, field work plans and safety inspections. Josh will serve as an integral member of the construction team by functioning as the main communication link between the Owner, architect and Kline Rostocil Construction personnel - a single point of contact.
Gabriel Surgeon
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Gabriel joined Kline Rostocil Construction as a project manager in 2025. As a Project Manager, Gabriel will have responsibility to coordinate key aspects of the project - from pre-construction to construction and beneficial occupancy. He will take-action, as required, to satisfy responsibilities that include, but are not limited to, trade contractor coordination, workforce scheduling, field work plans and safety inspections. Gabriel will serve as an integral member of the construction team by functioning as the main communication link between the Owner, architect, and Kline Rostocil Construction personnel - a single point of contact. Gabriel has been in the industry his entire life thanks to his father’s footsteps. Beginning with hands on experience and developing into a site superintendent, estimating, project manager, and operations manager after college. Gabriel has experience in residential, commercial, and light industrial projects. In his free time, he enjoys being outdoors hunting and fishing, spending time with his chocolate lab, wife, and two kids
Julieanna Lee
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Julieanna joined Kline Rostocil Construction as our Business Development Manager in 2024. Julieanna is a seasoned business development professional with extensive experience in the commercial construction industry. As Business Development Manager at Kline Rostocil Construction, she drives strategic growth, cultivates key industry relationships, and identifies new business opportunities to support clients construction needs. With a strong background in client acquisition, networking, and sales leadership, Julieanna has worked closely with general contractors, subcontractors, property managers, and developers. Her previous roles at The Blue Book Construction Network and Dodge Construction Network allowed her to build a vast industry network, host impacƞul networking events, and deliver tailored solutions that drive project success. Julieanna's deep understanding of the commercial construction landscape, combined with her expertise in relationship-building and market expansion, makes her a vital asset in fostering long-term partnerships and delivering results.
Valerie Hargesheimer
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As the Account Manager, Valerie will service the project throughout the construction phases and will handle all AIA pay applications and processing subcontractor and supplier payments. Valerie is supported by the industry’s most sophisticated computerized project accounting and monitoring tools
Lisa Basham
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As Project Engineer, Lisa will assist the Project managers in evaluating, coordinating, and distributing documents, information and authorizations necessary to ensure the orderly completion of the project’s cost, quality, and schedule activities.
Trisha Rideout
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As Office Administrator, Trisha assists the entire office and field staff with coordinating project and employee needs. She works with design team to complete project closeout documents and warranty information.
Scout Surgeon
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As Chief Morale Officer, Scout will assist the team in keeping their spirits high. Scout is highly motivated and understands the importance of having an engaged and happy staff to encourage productivity.
The Leadership & Construction Professionals Behind KRC Contractors
KRC Contractors is built on experienced leadership, disciplined execution, and a team committed to delivering high-level commercial construction projects with professionalism, accountability, and long-term client trust.
45+
Years of ExperienceRegional & National
Commercial ProjectsMulti-Sector
Construction ExpertiseA Team Focused on Relationships, Accountability & Exceptional Project Execution
Behind every successful KRC Contractors project is a team committed to communication, professionalism, operational discipline, and delivering long-term value for every client we serve.