What Annexair does

Annexair is a family-owned commercial HVAC manufacturer founded in 1998 by François Lemieux and headquartered in Saint-Germain-de-Grantham, Quebec, Canada. The company designs and builds energy-efficient air handling systems — Air Handling Units (AHU), Energy Recovery Units (ERU), and Makeup Air Units (MAU) — for commercial, industrial, institutional, and government customers. The product portfolio rests on three proprietary technology pillars: composite casings (thermo-composite first-generation, and biocomposite second-generation made from recycled plastic bottles — the world's first metal-free HVAC casings); EC-Spider Plus direct-drive fans exceeding IE5 ultra-premium efficiency with integrated SmartTrack controllers; and V3 Logic, an intelligent head-pressure modulation system coordinating variable-speed compressors (Danfoss VZH, 30-90Hz) and variable-speed condenser fans to deliver 15-35% energy savings versus conventional systems. Products integrate with building management systems via BACnet, LonWorks, and Modbus RTU protocols.

Name

Annexair

Legal name

Annexair

Website

https://annexair.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

Annexair is a family-owned Canadian manufacturer of commercial air handling units (AHU), energy recovery units (ERU), and makeup air units (MAU), featuring proprietary composite casings, IE5+ direct-drive fans, and V3 Logic variable-speed control. It serves enterprises, governments, healthcare, education, and data centers, with 99% of sales in the US.

Ownership category

akta.pro rank

Product category

Commercial HVAC Systems

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Auto Controls For Regulating Residential & Comml Environments (3822)

akta.pro primary industry

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)

akta.pro secondary industries

Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline) (IMADANAB), Dampers, Louvers & Ventilation Controls (IMADANAD)

Keywords

• Commercial HVAC systems
• Air handling units
• Energy recovery ventilation
• Composite HVAC casings
• Variable speed compressors

Headquarters

HQ city

Drummondville

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. HVAC System Sales: Manufacture and sale of commercial air handling units (AHU), energy recovery units (ERU), and makeup air units (MAU). Products sold as complete systems with various casing types and technology options. Primarily one-time hardware sales with after-sales parts and service components.
2. After-Sales Parts & Service: Parts replacement and technical support services for installed units. Technical support available via phone with specific dial extensions for parts requests and technical support.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Annexair designs and manufactures commercial-grade air handling systems, including Air Handling Units (AHU), Energy Recovery Units (ERU), and Makeup Air Units (MAU), offered with proprietary Thermo-composite and Biocomposite casings. The units integrate proprietary technologies such as the V3 Logic modulating control system, EC-Spider Plus IE5+ plug fans with SmartTrack controllers, variable-speed compressors, and direct-drive fan architecture, targeting commercial, industrial, and institutional facilities across North America.

Product overview

Annexair is a family-owned HVAC company founded in 1998 by Francois Lemieux, specializing in the design and manufacture of high-quality, energy-efficient air handling systems exclusively for commercial applications. The product portfolio centers on three core unit families - ERU (Energy Recovery Units), AHU (Air Handling Units), and MAU (Makeup Air Units) - which are offered with two distinct casing technologies: Thermo-composite (first-generation composite) and Biocomposite (second-generation, made from recycled plastic bottles). Supporting these products are proprietary technologies including V3 Logic (intelligent modulating control system using variable speed compressors and fans), EC-Spider Plus fans (IE5+ efficiency with integrated SmartTrack Controller), Air-to-Air Exchangers, and Package Cooling Systems. With 99% of sales in the US and over 11,000 systems installed, Annexair serves diverse markets including healthcare, education, government, offices, manufacturing, hospitality, casinos, pharmaceutical, data centers, aerospace, and airports. The company operates from a 500,000 sq ft facility in Saint-Germain-de-Grantham, Quebec, Canada, with 450 employees.

Differentiator

Problem solved

Functional benefit

Products and services

• AHU (Air Handling Units) Commercial air handling units that condition and distribute air throughout buildings, featuring composite casings and Annexair's advanced EC-Spider Plus fan technology.
• ERU (Energy Recovery Units) Energy Recovery Units that recover energy from exhaust air to precondition incoming fresh air, improving energy efficiency in commercial HVAC applications.
• MAU (Makeup Air Units) Makeup Air Units that provide fresh outdoor air to replace air exhausted from buildings, maintaining indoor air quality and pressure balance.
• V3 Logic Technology Intelligent head-pressure modulating control system that synchronizes variable-speed compressors, variable-speed condenser fans, and EC-Spider fans to achieve 15-35% energy savings versus conventional systems, maintaining ±1.0°F temperature precision.
• EC-Spider Plus Fan Next-generation plug fan with integrated SmartTrack Controller, exceeding IE5 ultra-premium efficiency class, IP54 motor protection, IP65/NEMA 4X controller enclosure, active vibration monitoring, and self-cooling design without internal fans.
• Air-to-Air Exchangers Heat recovery ventilation systems that transfer energy between incoming and outgoing air streams to improve efficiency and indoor air quality.
• Package Cooling System Factory-assembled cooling systems integrated into HVAC units, featuring variable speed compressor technology and advanced refrigerant management.
• Thermo-composite Casing First-generation composite casings for HVAC units made using composite technology instead of steel, reducing overall unit weight by 30% compared to steel casings while providing superior rigidity, reduced leakage, and extended lifespan.
• Biocomposite Casing Second-generation metal-free casings made from recycled plastic bottles, the first metal-free HVAC unit casings in the world, with exceptional durability and sustainability.

Quantifiable outcome

• 15-35% energy savings versus conventional HVAC systems using V3 Logic technology
• +4 more outcomes

Named customers21 records

Segments9 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature6 records

Partnerships

Five partnerships are on record, tiered core.

• DanfosscoreTechnology or Integration · 1 January 2008Partnership for VZH variable speed compressors used in V3 Logic technology. Danfoss VZH compressors are designed to maintain high isentropic efficiency and adjust precisely to load requirements, operating from 30Hz to 90Hz.
• European Fan and Motor ManufacturerscoreTechnology or Integration · 1 January 2006Partnership with European manufacturers of fan wheels and EC-PM motors for the development of direct drive EC-Spider fans. This partnership enabled Annexair to become first North American manufacturer to eliminate belt-driven fans.
• Carrier Corp.coreChannel Partner/ Reseller/ Distributor · 1 January 2004Shortly after the Trane relationship, Carrier Corp. also contacted Annexair to supply the US network for semi-custom and custom unit requests.
• TranecoreChannel Partner/ Reseller/ Distributor · 1 January 2003Trane, impressed by the exceptional quality of Annexair products, solicited Annexair to supply the US network for semi-custom and custom unit requests. Major OEM relationship.
• Rototherm GmbHcoreTechnology or Integration · 1 January 1997Partnership established after multiple European market exploration trips. Rototherm GmbH is a major thermal wheel (energy recovery wheel) manufacturer. Annexair selected them as their thermal wheel supplier for HVAC systems.

Scale indicators7 records

Recent moves13 records

Expansion highlights6 records

Direct peers

• AAON: AAON designs and manufactures commercial and semi-custom air handling units, energy recovery units, and packaged HVAC equipment. Directly comparable to Annexair as a North American specialist in semi-custom AHU/ERU serving data centers, healthcare, and government — exactly the same end markets and product families.
• Carnes Company: Carnes manufactures commercial air handling units, fans, dampers, and terminal units for the North American HVAC market. Closely comparable product portfolio and specification-driven sales motion to Annexair, particularly in custom and semi-custom AHU applications.
• Loren Cook Company: Loren Cook manufactures commercial and industrial fans, blowers, and air-handling equipment. Comparable to Annexair's EC-Spider fan and AHU businesses, serving similar commercial HVAC specification channels in North America.
• Modine Manufacturing: Modine manufactures heat-transfer and ventilation products including commercial HVAC units, data center cooling, and air handling equipment. Directly competes with Annexair in commercial air handling, particularly in data center and industrial verticals.
• Greenheck Group: Greenheck is one of North America's largest manufacturers of commercial and industrial ventilation equipment, including air handling units, fans, dampers, and louvers. Closely comparable product portfolio and customer base (commercial, industrial, institutional), and a leading competitor in the same AHU/fan segments as Annexair.

Emerging players

• Munters Group: Munters is a global air treatment and climate solutions provider focused on energy-efficient air handling, including data center cooling, agricultural climate control (greenhouses/grow-ops), and industrial dehumidification. Highly comparable to Annexair's agricultural technology and commercial air handling verticals, with overlapping energy efficiency positioning.

Broad incumbents

• Trane Technologies: Trane Technologies is a global HVAC OEM and one of Annexair's largest private-label customers (since 2003) for semi-custom and custom units in the US. Trane's broader commercial and applied HVAC portfolio overlaps with Annexair's, but at significantly larger scale and with global service coverage.
• Johnson Controls: Johnson Controls is a global building HVAC and building automation provider with a substantial applied commercial air handling business that competes directly with Annexair's products, while also being a potential customer/partner through integrated controls offerings (BACnet, LonWorks).
• Daikin Applied: Daikin Applied is the commercial HVAC arm of Daikin Industries and a leading manufacturer of air handling units, chillers, and applied HVAC systems in North America. A broad incumbent competitor to Annexair in commercial AHU and energy recovery, with significantly larger scale and global footprint.
• Carrier Global Corporation: Carrier is a global HVAC OEM and another of Annexair's key OEM customers (since 2004) for custom/semi-custom air handling units in North America. Carrier's commercial HVAC portfolio overlaps heavily with Annexair's, but Carrier operates globally with vastly greater scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCyo8810rRn4Pdm-i4dMikqQ
• Facebookfacebook.com/annexair
• LinkedInlinkedin.com/company/annexair

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Annexair