20 Heat Sink Manufacturers and Thermal Suppliers to Consider
Choosing a heat sink manufacturer involves more than comparing prices. Material selection, fin geometry, thermal performance, manufacturing processes and production requirements all affect the final cooling solution.
For U.S. buyers, potential suppliers include domestic heat sink manufacturers, European thermal engineering companies and international OEM manufacturers. Some specialize in standard aluminum extrusions, while others offer custom skived fins, heat pipes, vapor chambers or liquid cold plates.
This guide compares 20 companies based on their publicly available product information and manufacturing focus. The list is intended as a supplier reference, not a ranking by market share or independently verified product quality.
The companies are identified by their main business base, not by the manufacturing origin of every individual product. Buyers should confirm the actual factory location, applicable certifications and production arrangements when requesting a quotation.
U.S. Heat Sink Manufacturers and Thermal Specialists
1. Eaton (formerly Boyd Thermal)
Website: https://www.eaton.com/
Eaton completed its acquisition of Boyd Thermal in March 2026. The thermal business now operates under Eaton's thermal management portfolio, which includes extruded and stamped heat sinks, skived fins, bonded-fin assemblies and other advanced cooling technologies.
Focus: Industrial electronics, power electronics, data centers and integrated thermal management.
2. Advanced Thermal Solutions (ATS)
Website: qats.com
Advanced Thermal Solutions provides heat sinks, heat pipes, vapor chambers, liquid cooling products and thermal engineering services. It also operates a U.S. manufacturing center, making it relevant for projects that combine product sourcing with thermal analysis and design support.
Focus: Electronic component cooling, PCB assemblies, prototyping and thermal engineering.
3. Ohmite
Website: www.ohmite.com
Ohmite supplies standard and custom industrial heat sinks, including extruded aluminum designs and mounting solutions for power electronic components. Its catalog can be useful when an existing profile meets the application's thermal and installation requirements.
Focus: Power resistors, semiconductors and industrial electronics.
4. C&H Technology
Website: chtechnology.com
C&H Technology offers extruded aluminum heat sinks, bonded-fin and folded-fin designs, as well as liquid-cooled chill blocks and cold plates. Its website identifies its heat sinks as made in the USA.
Focus: Power electronics, semiconductor cooling and custom air- or liquid-cooled components.
5. D6 Industries
Website: d6industries.com
D6 Industries manufactures standard and custom bonded-fin heat sinks and liquid cold plates. It also provides secondary machining and assembly, which can help customers consolidate several manufacturing steps with one supplier.
Focus: IGBT devices, power conversion and high-power cooling assemblies.
6. Advanced Cooling Technologies (ACT)
Website: 1-act.com
Advanced Cooling Technologies specializes in thermal management solutions, particularly two-phase heat transfer technologies. Its engineering and manufacturing services support projects ranging from concept development to prototype and production.
Focus: Heat pipes, specialized cooling systems and applications with demanding thermal constraints.
7. Noren Thermal Solutions
Website: norenthermal.com
Noren offers heat sinks, heat pipes and other passive thermal management products. Its bonded-fin heat sinks can be customized around fin height, thickness and density rather than relying solely on standard catalog designs.
Noren states that its products are designed and assembled in the United States.
Focus: Industrial thermal management and custom heat sink assemblies.
8. HeatSinkUSA
Website: heatsinkusa.com
HeatSinkUSA supplies aluminum extruded heat sinks manufactured in Michigan. Its online catalog and cutting services make it an option for buyers who need standard profiles, prototypes or relatively small quantities without a minimum-order requirement.
Focus: Catalog extrusions, small-volume purchases and development projects.
9. PSI Industries
Website: www.psiextrusions.com
PSI Industries provides custom aluminum extrusion, CNC machining and fabrication services. For heat sink projects, it can produce standard or custom aluminum profiles and perform secondary operations to meet dimensional and assembly requirements.
Focus: Custom extruded aluminum heat sinks and repeat OEM production.
International Manufacturers and Engineering Specialists
10. Hydro Extrusion
Website: www.hydro.com
Hydro Extrusion supplies aluminum heat sink profiles and custom extrusion solutions through its North American manufacturing network. Its capabilities include profile design, fabrication and additional machining.
Focus: Custom aluminum profiles, high-fin-density extrusions and industrial cooling components.
11. Mersen
Website: www.mersen.com
Mersen offers thermal management products for high-power applications, including Fabfin and Hollowfin air-cooled heat sinks and liquid cold plates. Its swaged-fin technologies provide alternatives to conventional extruded or bonded-fin constructions.
Focus: Power electronics, motor drives, renewable energy and industrial systems.
12. CTX Thermal Solutions
Website: www.ctx.eu/en
Germany-based CTX Thermal Solutions supplies standard and custom-engineered heat sinks, along with heat pipes and liquid cooling solutions. It also provides related electronic enclosure and cooling components.
Focus: Industrial electronics, power supplies, embedded systems and customized cooling assemblies.
13. Mecc.Al
Website: meccal.com
Mecc.Al is an Italian thermal management manufacturer offering extruded, welded, skived-fin and brazed-fin heat sinks, as well as liquid-cooled plates. Its manufacturing technologies include controlled-atmosphere brazing and friction stir welding.
Focus: Medium- and high-power electronics requiring customized air or liquid cooling.
14. AWIND Thermal
Website: awind-thermal.com
AWIND Thermal is a China-based custom thermal management manufacturer serving international OEM customers. Its product range includes aluminum and copper heat sinks, skived-fin heat sinks, bonded-fin designs, heat pipe assemblies, vapor chambers and liquid cold plates.
For custom projects, AWIND supports drawing review, manufacturing feasibility assessment and production. Its range of manufacturing processes allows buyers to evaluate different constructions according to thermal requirements, installation space and expected production volume.
Relevant product categories include custom heat sinks, skived-fin heat sinks, vapor chambers and liquid cold plates.
Focus: Custom OEM heat sinks, power electronics, vapor chambers and liquid cooling components.
15. Alutronic
Website: alutronic.de/en
Alutronic is a German heat sink manufacturer offering standard profiles and customized solutions. Its capabilities include machining, surface finishing and technical support for selecting or developing a suitable heat sink profile.
Focus: Standard and custom aluminum heat sinks for electronic components.
16. GD Rectifiers
Website: www.gdrectifiers.co.uk
GD Rectifiers is a UK-based designer and manufacturer of standard and custom heat sinks, accessories and power semiconductor assemblies. Its range includes forced-air-cooled and water-cooled heat sinks, as well as products for industrial power electronics.
Focus: High-power semiconductors, industrial power control, rail and renewable energy applications.
17. BAL Group
Website: bal-group.com
BAL Group supplies aluminum heat sink extrusions, including custom designs that can be cut to length, machined and finished according to customer requirements. It is particularly relevant when an application can be served by an extrusion-based construction.
Focus: Aluminum heat sink profiles, LED cooling and customized extrusion components.
18. ALMAG Aluminum
Website: www.almag.com
ALMAG Aluminum is a North American aluminum extrusion manufacturer specializing in complex profiles and customized extrusion solutions. It may be relevant when heat sink performance depends on a profile's geometry, wall thickness or integrated structural features.
Focus: Custom aluminum profiles and application-specific extrusion components.
19. Taber Extrusions
Website: taberextrusions.com
Taber Extrusions manufactures aluminum extrusions and provides related fabrication and friction stir welding services. It is more appropriately considered an extrusion and component manufacturing supplier than a catalog-focused heat sink specialist.
Focus: Custom aluminum extrusions and fabricated aluminum panels for industrial applications.
20. Thermal Transfer Products
Website: thermaltransfer.com
Thermal Transfer Products is a U.S.-based manufacturer of engineered heat exchangers for industrial and mobile applications. Its portfolio is more focused on air- and liquid-cooled heat exchangers than standalone electronic heat sinks, making it a relevant alternative when the cooling requirement extends beyond a heat sink assembly.
Focus: Industrial fluid cooling, heat exchangers and customized thermal systems.
How to Choose a Heat Sink Manufacturer
Before requesting quotations, compare suppliers using the same technical and commercial requirements.
Manufacturing process: Determine whether extrusion, skiving, bonded fins, heat pipes, vapor chambers or liquid cooling is appropriate for your design.
Engineering support: Confirm whether the supplier can review drawings, identify manufacturing risks and support prototype development.
Quality requirements: Specify critical dimensions, inspection records, material documentation and any required thermal or leak testing.
Total project cost: Compare tooling, sampling, unit pricing, secondary machining, finishing, delivery terms and production lead times.
Manufacturing origin: Distinguish a company's headquarters or sales office from the actual factory that will manufacture your order.
Not every supplier offers every process or service. Check the capabilities relevant to your project directly with the manufacturer before making a decision.
Conclusion
The right heat sink manufacturer depends on the thermal requirements, construction method, production volume and quality expectations of your project. Catalog suppliers can be suitable for standard designs, while custom projects may require additional engineering and manufacturing support.
For OEM buyers who need custom aluminum or copper heat sinks, skived-fin structures, vapor chambers or liquid cold plates, AWIND Thermal is one option to evaluate. Share your drawing, thermal requirements and expected order quantity to discuss manufacturing feasibility and suitable cooling approaches.
