John Grendzinski

For over 50 years, Landmark has been a leading provider of engineering, construction, and asset management services for storage solutions in the water, wastewater, power, and industrial markets across North America, specializing in high-capacity elevated and ground-supported tanks, process and pressure vessels, and custom solutions. At Landmark, we prioritize the health, safety, and well-being of our employees, clients, and communities. We maintain rigorous safety standards and continuously improve our processes to ensure the highest level of protection for all stakeholders. Our core values of Integrity, Teamwork, and Excellence drive our culture and guide our actions. We believe in fostering an environment of trust, collaboration, and continuous improvement, where every team member is empowered to contribute their best.