Yanmar Energy Systems North America Announcement
Press release —
Controlled Air, Yanmar Energy Systems, and TEDOM Unify Under Yanmar Energy Systems North America, Inc.
New organization brings one of the industry's most comprehensive portfolios of energy-efficient building solutions under a single, streamlined entity
BRANFORD, CT — June 12, 2026 — Controlled Air, Yanmar Energy Systems, and TEDOM today announced their unification under a single organization: Yanmar Energy Systems North America, Inc. (YESNA), headquartered in Branford, Connecticut. The consolidation takes effect immediately.
Controlled Air is a premier, full-service commercial HVAC and energy solutions provider with over 45 years of industry innovation. Serving as the localized engineering, planning, and service arm of YESNA, the company delivers comprehensive, end-to-end commercial solutions including engineering consulting, design-build installation, and custom maintenance contracts. Controlled Air is widely recognized for pioneering sustainable microgrids and sophisticated climate control systems that reduce operational costs and environmental impact. A dedicated advocate for green infrastructure, the company is a sponsoring member of the Connecticut Green Building Council and a partner in the EPA CHP Partnership Program.
TEDOM is a leading global manufacturer of high-efficiency combined heat and power (CHP) cogeneration units and a comprehensive provider of decentralized energy services. Boasting a robust international footprint, TEDOM delivers versatile, on-site power generation systems fueled by natural gas, biogas, and other clean energy sources, with cutting-edge hydrogen-ready configurations. As part of the Yanmar Group, TEDOM brings world-class cogeneration technology to YESNA, enabling commercial, institutional, and industrial facilities of all sizes to maximize energy utilization, ensure grid resiliency, and dramatically lower their carbon footprints.
Yanmar Energy Systems is a core division of Yanmar Co., Ltd., a global engineering leader established in 1912. Built on more than a century of engineering excellence, the company is a pioneer in advanced performance diesel engines, Gas Engine Heat Pumps (GHP), and micro-cogeneration (mCHP) solutions. Driven by a mission to foster a sustainable, carbon-neutral society, Yanmar Energy Systems utilizes innovative gas-driven technologies to reduce building electrical demands by up to 90% compared to traditional systems. As the foundational backbone of YESNA, Yanmar provides the global technology resources and next-generation research required to power the North American energy transition.
Together the three companies, create a premier provider of sustainable building energy solutions in North America.
About the Unification
By aligning operations under one organization, YESNA delivers customers direct, streamlined access to a full portfolio of industry-leading sustainable technology — including:
- Cogeneration / CHP Systems — Scalable from 20 kW micro-CHP to 4.5 MW systems, designed to reduce energy costs and improve resilience for hospitals, universities, and industrial facilities.
- Gas Heat Pumps (GHP) — High-efficiency, gas-driven climate control ideal for aquatic centers, schools, and large commercial buildings.
- All-New Electric Rooftop Units (RTU) — Built for reliability in demanding New England commercial applications.
- EcoForce Gas Engine Driven Products — The all new product line, for gas engine driven topics, Including an upcoming gas engine driven rooftop unit releasing later this year.
- Engineering Capabilities - Full HVAC and microgrid engineering capabilities.
What Remains the Same
Customers will notice a new name and new group logo. All existing relationships, contacts, and service teams remain intact. The same engineers, technicians, and sales representatives customers have relied on will continue to support their facilities — now with expanded resources and a broader technology platform behind them.
Leadership Statement
"A company is only as strong as its people. While our brand reflects a powerful global partnership, the heart of this organization remains the same trusted team — now with more tools, more resources, and a stronger platform to serve our customers even better. We are evolving to ensure we can deliver the most efficient, forward-thinking energy solutions for the next 100 years and beyond."
— Joe Cullen, Vice President, Yanmar Energy Systems North America, Inc.
About Yanmar Energy Systems North America, Inc.
YESNA is a leading provider of energy-efficient building solutions, specializing in Cogeneration (CHP), Gas Heat Pumps (GHP), and Rooftop Units (RTU). With direct access to Yanmar's global expertise and over 300,000 installations worldwide, YESNA delivers scalable, high-efficiency systems for facilities ranging from small schools to large-scale industrial plants throughout North America.
Headquarters: 15 NE Industrial Road, Branford, CT 06405
Website: yanmarenergysystems.com
Phone: (203) 643-1907
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[Inquiries for further information]
Yanmar America Marketing
101 International Parkway
Adairsville, GA 30103
770-877-7824
yanmarmarketing-ya@yanmar.com
