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Last updated: January 2026
This directory lists 50 automotive climate control manufacturers across the United States, from full-service thermal management system integrators to specialized suppliers of compressors, evaporators, and control units.
Buyers are often solving for critical issues like optimizing cabin warm-up/cool-down times, reducing parasitic energy loss in EVs, or ensuring precise thermal comfort algorithms for autonomous vehicles. The right supplier can mean the difference between class-leading interior climate and persistent warranty claims related to blower motor calibration or defrost performance.
The supplier ecosystem ranges from Tier 1 giants capable of designing and manufacturing complete front-end modules (FEM) and integrated HVAC units, down to highly specialized Tier 2 manufacturers focusing on specific components like expansion valves, condensers, or pressure sensors, often with unique expertise in materials or miniaturization.
Before engaging, buyers should have clear performance specifications for ambient temperature ranges, target occupant comfort levels, noise limits, and expected durability cycles. Suppliers, in turn, will expect detailed CAD models, system voltage requirements, and validation plans, often starting with Design for Manufacturing (DFM) analysis.
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50 companies nationwide
Based in Mesa, AZ, Air Components & Manufacturing Inc specializes in providing automotive air conditioning parts to wholesalers and retail customers nationwide. With over 35 years of experience, the company manufactures and supplies essential components for vehicle climate control systems.
Automotive Solutions LLC provides products for automotive thermal management and engine cooling systems. They serve heavy duty trucks, off road vehicles, and agricultural machinery, focusing on B2B industrial applications.
Based in Eau Claire, WI, BTRAC specializes in the provision of heavy-duty truck air conditioning parts and related solutions. The company designs and supplies components known for quality and efficiency, operating with ISO certified processes for the automotive climate control manufacturing industry.
Based in Romulus, MI, Detroit Thermal Systems develops and manufactures high quality automotive climate control systems and components. The company produces world-class heating, ventilation, and air conditioning (HVAC) systems, emphasizing manufacturing excellence and precision standards to optimize driver comfort.
Based in Midlothian, TX, DTAC manufactures air conditioning and heating systems for heavy trucks, specialty vehicles, and off-road heavy equipment. Since 1977, they have provided comprehensive heat/cool solutions, including evaporators, condensers, and essential system components for industrial vehicle climate control needs.
Based in Anaheim, CA, EI Sensor Technologies manufactures a full line of temperature sensors, including PTC and NTC thermistors, RTDs, and probe assemblies. They offer custom solutions for various applications, serving as a direct component supplier for automotive climate control manufacturers.
Gates, based in Denver, CO, is a global manufacturer of power transmission and fluid power products. They provide expert thermal management solutions for internal combustion, hybrid, and electric vehicles, ensuring high performance. Gates engineers critical components for automotive and industrial applications through materials science.
Grayson Thermal Systems manufactures robust heating and cooling systems for dependable thermal management. Based in Fishers, IN, the company specializes in providing complete thermal solutions for off-highway vehicles and other demanding industrial applications, ensuring durability and optimal performance.
Hammond Air Conditioning manufactures and stocks integrated aftermarket air conditioning system kits for various equipment, trucks, and boats. The company also provides a wide range of climate control components including compressors, condensers, evaporators, blowers, heaters, fittings, and hoses.
KUS Americas, Inc. specializes in providing advanced thermal management solutions and components for the automotive industry. Their products are designed for electric vehicles (EVs), hybrids, and fuel cell vehicles (FCVs), focusing on enhancing efficiency and safety within these systems. Based in Davie, FL, the company manufactures critical components for modern automotive climate control applications.
Based in Racine, WI, Modine Manufacturing Company specializes in advanced thermal management solutions. They design, engineer, and manufacture systems for commercial vehicles and modern engines, providing heating, cooling, and ventilation components. Modine delivers innovative, differentiated solutions focused on efficiency and reliability for global customers.
Based in Fort Worth, TX, Old Air Products manufactures and supplies comprehensive automotive climate control systems and components. They provide complete A/C and heater systems, including Direct-Fit and Underdash units, alongside replacement evaporator cores, compressors, condensers, and controls. The company specializes in solutions for classic cars and trucks.
Omega Environmental Technologies is a US-based provider of aftermarket climate control components for passenger vehicles, heavy-duty trucks, and agricultural/off-road equipment. The company maintains a manufacturing operation and research and development lab in Fort Worth, Texas, complementing its distribution network and headquarters in Dallas, Texas.
Based in Exton, PA, Pelonis Technologies, Inc. manufactures brushed and brushless DC automotive fans and blowers. They also supply a variety of high-performance heating solutions, including PTC heaters, flexible heaters, and temperature controllers, which are essential components for automotive climate control systems.
Based in Alliance, NE, Perrin Manufacturing designs, tests, and builds HVAC and climate control systems for off-road and heavy-duty vehicles. As an OEM manufacturer, they provide heating and cooling solutions for earth movers, tractors, and electric vehicles, specializing in automotive, construction, and agricultural HVAC.
Based in Lewiston, ME, Senior Flexonics manufactures innovative thermal management and fluid conveyance solutions. The company provides battery thermal management systems for optimizing safety, performance, and battery life in electric vehicles. They also offer thermal management expertise for hybrid vehicles, leveraging experience with both I.C.E. and electric products.
Thermal Solutions Manufacturing produces Truck Tough® heat exchangers, including direct-replacement A/C condensers, for Class 4-8 trucks and the heavy duty automotive aftermarket. The company is a manufacturer and provider of heat exchange and diesel emissions products, operating five North American plants.
Based in Pendergrass, GA, TD Automotive Compressor Georgia, LLC manufactures and supplies vehicle air-conditioning compressors. The company provides these essential components for automotive climate control systems, serving a significant portion of the North American auto industry.
Based in Dallastown, PA, Trans/Air Manufacturing Corporation is an ISO 9001 registered firm specializing in climate control systems. They manufacture a full line of products for the school, commercial, and electric/hybrid vehicle markets, offering units, parts, service, and new or aftermarket installations.
ASPINA manufactures brushless DC motors, blowers, and system products for automotive climate control applications. They supply automotive HVAC blowers and specialized seat ventilation blowers, offering design and ODM/OEM services for various automotive systems.
Based in Santa Fe Springs, CA, US Motor Works, LLC engineers and supplies automotive condensers, critical components for climate control systems. Their products are designed to meet or exceed OE manufacturer specifications, offering drop-in fit, form, and function for various automotive applications.
Based in San Antonio, TX, Vintage Air designs and manufactures performance air conditioning systems for classic cars, trucks, street rods, and custom vehicles. They provide customizable solutions, including control panels, hose kits, louvers, and refrigerant hoses for restoration and custom builds.
VOSS Automotive, Inc., based in Fort Wayne, IN, specializes in line and connection technology for vehicle systems. They supply critical components like valves, quick connectors, manifolds, and sensors for thermal management applications in commercial vehicles, construction, agriculture, and passenger cars.
YS Tech USA, based in Huntington Beach, CA, designs and manufactures thermal solutions. They specialize in low-noise, high-performance DC axial fans, blowers, and heat sink technologies, essential for automotive climate control. The company provides reliable, customized products for demanding applications.
Gentherm specializes in advanced thermal management, pneumatic comfort technologies, and fluid systems for the automotive sector. The company develops and provides solutions, including active seat climate control and other essential technologies, to its customers.
Kayser Automotive Systems specializes in innovative thermal management solutions for the automotive industry. The company designs and manufactures a variety of valves, controls, and line systems, including patented modular connector solutions. They provide crucial components for automotive climate control applications, supporting sustainable mobility.
Modine Electric Vehicle designs and manufactures advanced thermal management systems for zero-emission vehicles. They provide precise cooling and heating solutions for fuel cell stacks, electric vehicle batteries (BTMS), and power electronics. Modine optimizes temperature ranges for batteries and cools electric traction engines, supporting a cleaner future mobility.
NMB Technologies Corporation precisely manufactures electromechanical components, including AC and PWM cooling fans, BLDC motors, and position sensors. They supply these critical parts for various automotive applications, directly supporting manufacturers of automotive climate control systems and other essential functions.
Valeo Service provides OE-quality car A/C components for the automotive aftermarket. They manufacture a full range of climate control parts, including compressors, condensers, and cabin filters, serving as a strategic partner to automakers globally.
CARDONE Industries specializes in manufacturing and remanufacturing direct-fit, OE-matching Climate Control Modules for automotive applications. These units are designed to restore original functionality and dashboard aesthetics. The company offers a broad range of automotive aftermarket parts, including brakes, drivetrain, and electronics.
Classic Auto Air, based in Coppell, TX, designs and engineers model-specific climate control systems for classic, vintage, and custom vehicles. Specializing in air conditioning, heating, and defrost, the company provides solutions for makes like Ford, GM, Mopar, Porsche, and Ferrari, ensuring modern comfort and preserving vehicle integrity.
Based in Whitsett, NC, Cross Company provides advanced thermal management solutions for mobile equipment electrification. Specializing in passive and active thermal management systems, they integrate these capabilities with automation and process solutions for the automotive battery manufacturing and motorized vehicles industries.
Based in Grapevine, TX, Delphi Auto Parts manufactures and supplies HVAC components and compressors for automotive climate control systems. The company serves global OEM manufacturers and offers an extensive portfolio of aftermarket parts. Many Delphi compressors are made in North America.
Based in Colmar, PA, Dorman Products manufactures and supplies automotive climate control and HVAC modules. The company provides a growing range of both remanufactured and new units, offering direct, seamless repair solutions. Dorman Products focuses on delivering essential aftermarket components for various vehicle applications.
Mobile Climate Control specializes in precision-engineered HVAC solutions for off-road, commercial, and industrial vehicles. The company designs and manufactures climate control systems focused on comfort, efficiency, and reliability, providing custom HVAC systems and specialized engineering for diverse vehicle applications.
Based in Ocala, FL, Nostalgic AC Parts manufactures and supplies a full line of evaporators and complete aftermarket air conditioning kits for a wide range of classic vehicles, including Chevy, Ford, Dodge, and Street Rods. The company offers components for custom and special applications.
Based in Decatur, TX, O2 Cool Manufacturing designs, manufactures, and installs customized air conditioning and heating systems for commercial, specialty, and heavy-duty vehicles. They provide HVAC solutions for buses, luxury coaches, and conversion vehicles. As a Build America, Buy America (BABA) certified manufacturer, they ensure high performance.
Based in Memphis, TN, Red Dot Corporation designs and manufactures mobile HVAC systems and components for heavy-duty commercial and military vehicles. They provide comprehensive climate control solutions, specializing in robust components and custom engineering for demanding automotive and defense applications.
Restomod Air manufactures aftermarket automotive climate control systems, including custom-fit A/C kits, high-efficiency condensers, and various evaporator sizes. They also produce CNC-machined billet vents and advanced control technology for classic and custom vehicles, emphasizing ultimate style and performance.
Standard Motor Products, Inc. offers customizable thermal management solutions, including electric compressors, for on-highway light, commercial, and heavy-duty vehicles. They provide an extensive portfolio of engineered components for vehicle control and thermal systems, serving both automotive and off-highway markets.
Based in San Diego, CA, ARRK North America specializes in comprehensive thermal management systems for various propulsion types, providing product development from rapid prototyping to production. The company offers custom manufacturing services, ensuring efficiency and performance for automotive and other industries.
Astemo Americas specializes in manufacturing HVAC controllers for automotive climate control systems. They provide premium aftermarket components designed to meet the exact needs of specific vehicles, ensuring precise functionality and compatibility. The company delivers high-quality, durable parts for the automotive industry.
Delta Americas, through its Automotive Thermal Solution Business Unit (ATSBU), manufactures active cooling fans and thermal products for automotive applications. The company provides essential thermal management solutions designed to support various vehicle systems and enhance overall performance in the United States.
DENSO Auto Parts provides a range of automotive climate control components, including high-performance condensers. They offer various styles such as multiflow, subcooling, and Serpentine condensers, designed to meet or exceed original equipment (OE) benchmarks for aftermarket applications. The company is a key supplier to the automotive industry.
Lear Corporation designs and manufactures advanced automotive climate control systems. Their solutions focus on creating an ideal personal climate within vehicle cabins, leveraging intelligent software. These systems analyze ambient cabin conditions to deliver optimized comfort for occupants, enhancing the overall driving and passenger experience.
Mann+Hummel manufactures advanced filtration solutions vital for automotive climate control systems. They provide smart filtration and digital monitoring services designed to enhance cabin air quality in cars and trucks. Their products are essential components ensuring purified air and cleaner mobility for vehicles.
MAHLE is a global automotive supplier manufacturing electrical high-voltage air conditioning compressors for the North American market. Operating facilities in Morristown, TN, the company provides essential components for automotive climate control systems. MAHLE focuses on electrification and sustainable solutions.
Sanden USA specializes in the manufacturing of automotive air conditioning and HVAC systems. As experts in automotive climate control, the company designs and produces high-quality products, including compressors, through continuous improvements in technology and processes. They aim to deliver efficient solutions to customers.
Schaeffler, headquartered in Fort Mill, SC, is an automotive and industrial supplier. The company specializes in developing and manufacturing comprehensive thermal management systems for conventional, hybrid, and electric vehicles. Their solutions integrate coolant circuits with advanced refrigerant and heat pump technologies, providing complete systems.
Based in Livonia, MI, ZF is a global automotive technology company specializing in advanced thermal management systems. Their innovative solutions, including the TherMaS system, are crucial for optimizing battery performance and extending vehicle range in e-mobility applications. ZF manufactures these critical components for automotive climate control systems.
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For EVs, the focus shifts heavily towards energy efficiency and thermal management for the battery, not just the cabin. You'll need suppliers experienced with high-voltage electric compressors, integrated heat pumps (instead of relying solely on waste engine heat), and sophisticated PTC heaters for rapid cabin warm-up, all while minimizing battery drain. ICE vehicles typically use engine-driven compressors and engine waste heat.
Request detailed validation data from the supplier, including results from psychrometric chamber testing simulating various ambient temperatures and humidity levels. Verify their testing protocols align with your vehicle's defined performance standards, especially for windshield and side window clearing times. This often involves specific airflow and temperature distribution mapping.
Most modern automotive climate control suppliers provide the hardware (HVAC module, sensors, actuators) and often the low-level firmware for component control. However, the higher-level thermal comfort algorithms and the interface with the vehicle's overall control unit (VCU) or infotainment system often require collaborative development. Clarify early on who owns which software layers and their interface definitions.
For a completely new design, from concept to full production (SOP), expect anywhere from 18 to 36 months, depending on complexity, required validation, and tooling lead times. This includes phases like design and simulation, prototype builds, rigorous testing (including environmental, durability, and NVH), and final PPAP submission. Component sourcing and long-lead tooling are often critical path items.
Highly critical, especially during the development, validation, and early production phases. Issues related to HVAC module integration, calibration, or performance anomalies often require immediate, on-site engineering support. A supplier with local application engineers or a rapid response team can significantly reduce project delays and troubleshooting time, preventing costly assembly line stoppages.