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About Neptronic

Engineering Better HVAC Solutions Since 1976

Founded in Montreal, Canada, in 1976, Neptronic designs and manufactures intelligent, reliable and highly engineered solutions for the HVAC industry.

For 50 years, our success has been built on a commitment to innovation, engineering excellence and close collaboration with our customers. Today, our portfolio includes intelligent HVAC controls, humidifiers, actuators, actuated valves, electric heaters and integrated HVAC technologies designed to improve the performance, efficiency and control of building environments.

In 2026, Neptronic entered a new chapter in its history when it was acquired by SPX Technologies and became part of the company's HVAC segment.

The combination brings together Neptronic's engineering expertise, vertically integrated manufacturing capabilities and customer-focused culture with SPX Technologies' global scale, resources and extensive HVAC platform. As part of SPX Technologies, Neptronic is positioned to accelerate its growth, expand its reach and contribute to the development of increasingly intelligent, integrated and controls-enabled HVAC solutions around the world.

While our organization continues to grow, the principles that have defined Neptronic remain unchanged: innovation, quality, and a commitment to our customers.

Neptronic strives to

  • Provide industry-recognized OEM solutions for specialized applications.
  • Help customers maintain and improve precise control of indoor environments.
  • Remain at the forefront of technological advancement in the HVAC industry.
  • Design intelligent, competitive and application-driven solutions.
  • Build long-term relationships by understanding and responding to our customers' needs.
  • Strengthen our global presence through trusted local partners and the broader SPX Technologies platform.
  • Continuously improve the quality, reliability and performance of everything we create.

Vertically Integrated Manufacturing

Our team of nearly 400 professionals works from our vertically integrated manufacturing facility in Montreal, Canada, where product development and production come together under one roof.

From software and hardware development to SMT circuit board assembly, sheet-metal fabrication, engineering, assembly and product testing, our vertically integrated approach gives us greater control over quality, performance and product development.

Research and development are at the heart of Neptronic.

We continuously invest in new technologies, engineering capabilities and product development to respond to the evolving needs of the HVAC industry. Our solutions support a wide range of commercial, institutional and mission-critical environments, including data centers, healthcare facilities, educational institutions and other applications where dependable environmental control is essential.

Quality from Design to Delivery

Design Engineering

Design Engineering

Component Selection

Component Selection

Manufacturing

Manufacturing

Testing

Testing

Delivery

Delivery

Delivery

Customer Support

Neptronic is ISO 9001:2015 certified, reflecting our commitment to consistent quality, continuous improvement and disciplined manufacturing processes.

Quality is incorporated throughout the product lifecycle – from initial engineering and component selection to manufacturing, testing and customer support.

By maintaining extensive engineering and manufacturing capabilities within our Montreal facility, we are able to closely manage the processes that influence the reliability and longevity of our products.

Local Expertise. Global Reach.

Delivery

From our roots in Montreal, Neptronic has grown into an internationally recognized HVAC manufacturer supported by a strong network of OEMs, distributors, representatives and channel partners.

Our products are installed in buildings and critical applications around the world, while our expanding international network provides customers with local expertise and access to Neptronic solutions.

Worldwide recognition

Neptronic solutions can be found in prominent buildings and demanding applications around the world.

Supported by our network of distributors, representatives, OEM partners and industry professionals – and now strengthened by the global platform of SPX Technologies – we continue to bring Montreal-engineered HVAC innovation to customers worldwide.

SAGE Music Center (UK)

Sage Gateshead (UK)

Louvre Museum (France)

Louvre Museum (France)

Bombardier (Canada)

Bombardier (Canada)

Sakhalin Energy (Russia)

Sakhalin Energy (Russia)

Pentagon (US)

Pentagon (US)

National Gallery in London

National Gallery in London