Verified Nov 2026
Thermal & Fluid Systems
·
Richardson, Texas
·
Since 1895
Lennox manufactures heating, ventilation, air conditioning, and refrigeration systems for residential, commercial, and industrial applications. Founded in 1895 and headquartered in Richardson, Texas, the company employs 5,000–10,000 people with estimated revenue of $5–10 billion. It serves automotive, electric-vehicle, construction, medical, renewable-energy, and industrial-equipment sectors. Recent acquisitions include the Heat Controller brand portfolio and NSI Industries' HVAC division.
Lennox at a glance
Revenue
$5-10B
Est. band
Employees
5,000-10,000
Founded
1895
Headquarters
Richardson, Texas
Certifications
ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001
Import activity
4498
Industries
Automotive
Electric Vehicles
Construction
Medical
Renewable Energy
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
4498
Named foreign suppliers
50
Top origins
China · Mexico · Hong Kong S.A.R. · Thailand
Shared foreign counterparties do not establish that these companies buy from Lennox.
What this tells a buyer
The company received approximately 4,498 shipments from suppliers across 11 countries, with primary sourcing from Vietnam (GD Midea Air Conditioning Equipment, Guangdong Welling Motor Manufacturing, Broad Ocean Motor), China (Hong Kong Gree Electric Appliances, Jiangsu Weixi Group), and Thailand.
Lennox holds ISO 9001, ISO 14001, ISO 45001, and ISO 50001 certifications and offers design, installation, maintenance, and lifecycle support for HVAC systems, indoor air quality solutions, smart home integration, and sustainability consulting.
The company is privately held with manufacturing and operations in the United States, Canada, India, Germany, France, and Spain, and maintains distribution networks and service capabilities across residential and commercial markets.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
131 years in operation (founded 1895).
4,498 US import shipments on record.
Holds ISO 14001, ISO 45001, ISO 50001, ISO 9001 certification(s) per public sources.
Overview
Lennox manufactures heating, ventilation, air conditioning, and refrigeration systems for residential, commercial, and industrial applications. Founded in 1895 and headquartered in Richardson, Texas, the company employs 5,000–10,000 people with estimated revenue of $5–10 billion. It serves automotive, electric-vehicle, construction, medical, renewable-energy, and industrial-equipment sectors. Recent acquisitions include the Heat Controller brand portfolio and NSI Industries' HVAC division.
At a glance
Attribute | Detail |
|---|---|
Founded | 1895 |
Headquarters | Richardson, Texas |
Employees | 5,000-10,000 |
Revenue | $5-10B (estimated) |
Primary capability | Thermal & Fluid Systems |
Certifications | ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001 |
What Lennox makes
Lennox holds ISO 9001, ISO 14001, ISO 45001, and ISO 50001 certifications and offers design, installation, maintenance, and lifecycle support for HVAC systems, indoor air quality solutions, smart home integration, and sustainability consulting.
Certifications
Lennox is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 14001 — lennox.com
ISO 45001 — lennox.com
ISO 50001 — lennox.com
ISO 9001 — lennox.com
Trade and customs footprint
The company received approximately 4,498 shipments from suppliers across 11 countries, with primary sourcing from Vietnam (GD Midea Air Conditioning Equipment, Guangdong Welling Motor Manufacturing, Broad Ocean Motor), China (Hong Kong Gree Electric Appliances, Jiangsu Weixi Group), and Thailand. US customs bill-of-lading records list 4498 inbound shipments across 50 foreign suppliers, with top origins including China · Mexico · Hong Kong S.A.R. · Thailand.
Latest developments
2026-09-03 — Lennox Opens New Florida Training Center to Invest in Commercial HVAC Workforce | Lennox (lennox.com)
2026-06-18 — Lennox Signs Agreement to Acquire Heat Controller, Expanding Portfolio with Trusted Comfort-Aire and Century Brands | Lennox (lennox.com)
2026-03-03 — Lennox Expands into Residential Water Heating Through Ariston Joint Venture | Lennox (lennox.com)
2026-01-14 — Lennox Invests in Distribution and Digital Capabilities to Strengthen Commercial HVAC Business | Lennox (lennox.com)
2025-10-16 — Lennox Completes Acquisition of NSI Industries' HVAC Division | Lennox (lennox.com)
2025-08-18 — Lennox Signs Agreement to Acquire HVAC Division of NSI Industries | Lennox (lennox.com)
Facilities
Lennox is headquartered in Richardson, Texas. Public sources also reference these locations:
Saltillo, Mexico — lennox.com
Stuttgart, Arkansas — lennox.com
Company details
The company is privately held with manufacturing and operations in the United States, Canada, India, Germany, France, and Spain, and maintains distribution networks and service capabilities across residential and commercial markets. Lennox was founded in 1895, has an estimated 5,000-10,000 employees, and is headquartered in Richardson, Texas. On the LightSource stability read it is rated "Established & active": 131 years in operation (founded 1895). 4,498 US import shipments on record. Holds ISO 14001, ISO 45001, ISO 50001, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Lennox make?
Lennox manufactures heating, ventilation, air conditioning, and refrigeration systems for residential, commercial, and industrial applications. Founded in 1895 and headquartered in Richardson, Texas, the company employs 5,000–10,000 people with estimated revenue of $5–10 billion. It serves automotive, electric-vehicle, construction, medical, renewable-energy, and industrial-equipment sectors. Recent acquisitions include the Heat Controller brand portfolio and NSI Industries' HVAC division.
Where is Lennox headquartered?
Lennox is headquartered in Richardson, Texas (2140 Lake Park Boulevard, Richardson, Texas, 75080).
When was Lennox founded?
Lennox was founded in 1895.
How big is Lennox?
Lennox has an estimated 5,000-10,000 employees, with revenue in the $5-10B range (estimated).
What certifications does Lennox hold?
Lennox lists ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Lennox import from overseas suppliers?
US customs bill-of-lading records show 4498 inbound shipments for Lennox, with top origins including China · Mexico · Hong Kong S.A.R. · Thailand.
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Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Phone
'+1 305-718-2901
Certification
ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001
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