ESTABLISHED 1960
Celebrating
Over 65+
Years
As the Leader in Flow Control Technology.
Pioneering automatic flow control with innovation, quality, and reliability that continues to set the industry standard.
Innovation That Defines an Industry
ENGINEERING EXCELLENCE SINCE 1960
Pioneering the Future of Flow Control
Since introducing the industry’s first stainless steel flow cartridge,
Griswold Controls has been at the forefront of flow control innovation.
Our breakthrough Automizer® — the first combination
actuated control ball valve with automatic flow limiting technology —
continues our legacy of creating smarter HVAC solutions.
We don’t just meet industry standards; we help define them. Every
solution is engineered by professionals who understand the challenges
faced by contractors, engineers, and building professionals every day.
Engineering Excellence
Continuous innovation in terminal units, heat pumps, air handlers, and equipment room installations. We develop solutions that help contractors grow their business and engineers deliver superior, cost-effective systems.
Sustainability Pioneer
Leading the green revolution in HVAC for years. Our energy-efficient products and technologies help businesses, schools, and facilities reduce their carbon footprint while maximizing operational savings.
Solutions-Focused
Innovative, versatile flow control solutions designed to fit your specific applications. We understand industry challenges and create products that solve real problems with superior quality and performance.
Serving Critical Industries Worldwide
Delivering precision flow control solutions across diverse markets
HVAC Systems
Premium valves and pre-assembled systems for commercial and industrial HVAC applications, ensuring optimal comfort and energy efficiency.
Irrigation & Landscaping
Specialized irrigation valves and piping systems engineered for the unique demands of professional landscaping applications.
Foundation
Built on a Foundation
of Trust
With a large, knowledgeable staff driven by efficiency and exceptional service, Griswold Controls delivers improved comfort, system operating efficiencies, and utility cost savings to building owners worldwide. Our decades of expertise ensure you’re partnering with the most reliable name in flow control technology.