What Custom Thermoelectric does

Custom Thermoelectric, LLC is a privately held US manufacturer of solid-state thermoelectric components, headquartered at 11941 Industrial Park Road in Bishopville, Maryland. The company designs and builds products based on bismuth telluride (BiTe) semiconductor technology that exploits the Peltier effect for cooling and heating and the Seebeck effect for power generation. Its catalog spans Thermoelectric Coolers (TECs) in standard, Titan (titanium-sheathed), Mini, Rectangular, Multistage (up to 110°C delta T across 2–5 stages), High Temperature (rated to 200°C), and High Power variants; Thermoelectric Generators (TEGs); complete Air-to-Air, Air-to-Plate, and Air-to-Liquid assemblies; CNC-machined aluminum and copper water blocks tested to 1200W; supporting electronics (power supplies, temperature controllers, meters, power converters); thermal interface materials; and accessories. The company also offers Custom TEC manufacturing and a replacement-part TEC service targeting OEM integration.

The company sells almost entirely direct to end customers through a Magento e-commerce storefront with publicly disclosed unit pricing ($29.95–$838.20), structured volume discounts (10+/25+/50+/100+ units, 11–28% off), and a self-service technical content layer including CAD files, spec sheets, and a TE Encyclopedia. Orders can also be placed by phone or email. Customers include industrial and commercial thermal-management buyers (laboratory equipment, medical devices, photonics, electronic cooling), OEMs integrating thermoelectric modules, and individual/hobbyist buyers; no enterprise customer logos are disclosed. Custom Thermoelectric is independently owned, has no parent company, has not raised external funding, and operates with 11–50 employees.

Name

Custom Thermoelectric

Legal name

Custom Thermoelectric, LLC

Website

https://customthermoelectric.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Custom Thermoelectric, a privately held Maryland-based manufacturer, designs and sells solid-state thermoelectric coolers (Peltier), generators, water blocks, and complete thermal management assemblies using BiTe semiconductor technology to industrial, OEM, and individual buyers via direct e-commerce.

Ownership category

akta.pro rank

Product category

Thermoelectric Cooling & Power Generation Components

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

Thermal Management Components (Heat sinks, TIMs, fans/blowers, thermal pads) (IMAGAJAL)

Keywords

• Thermoelectric coolers
• Peltier modules
• Thermoelectric generators
• Liquid cold plates
• Thermal management assemblies

Headquarters

HQ city

Bishopville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Thermoelectric Products Sales: One-time hardware sales of thermoelectric modules (TECs, TEGs), water blocks, thermal assemblies, electronics, and accessories. Products are sold individually at fixed unit prices with volume discounts available for bulk purchases.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Custom Thermoelectric manufactures and sells solid-state thermoelectric coolers (TECs/Peltier modules), thermoelectric generators (TEGs), thermoelectric assemblies (air-to-air, air-to-plate, air-to-liquid), water blocks/liquid cold plates, supporting electronics, and thermal interface materials. Products serve cooling, heating, and waste-heat power generation applications for industrial, commercial, OEM, laboratory, medical, photonics, and electronics customers. The company also provides custom thermoelectric module design and OEM manufacturing services.

Product overview

Custom Thermoelectric is a manufacturer of solid-state semiconductor-based thermal control products for cooling, heating, and power generation. The core product portfolio centers on Thermoelectric Coolers (TECs)/Peltier coolers and Thermoelectric Generators (TEGs). Supporting product lines include Thermoelectric Assemblies (integrated cooling units), Water Blocks/Liquid Cold Plates for liquid cooling applications, Electronics (power supplies, temperature controllers, meters), Thermal Interface Materials (TIMs), and Accessories (heat sinks, cold plates, fasteners). The company also offers Custom TEC manufacturing and specialized product lines including Titan TECs, Mini TECs, Multistage TECs, TXL Products, and Development Kits. The architecture follows a modular approach where customers can purchase individual components (TECs, TEGs) or complete assemblies with integrated thermal management solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Thermoelectric Coolers (TECs) Solid-state semiconductor-based cooling devices using the Peltier effect for industrial, commercial, laboratory, medical, photonics, and electronics cooling applications.
• Thermoelectric Generators (TEGs) Solid-state devices that convert temperature differences into electrical power, including TEG Modules, TEG Electronics, and TEG Accessories for waste-heat harvesting applications.
• Thermoelectric Assemblies Complete cooling/heating assemblies combining TECs with heat sinks, fans, and mounting hardware in Air-to-Air, Air-to-Plate, and Air-to-Liquid configurations for drop-in thermal management.
• Water Blocks / Liquid Cold Plates Liquid cooling heat exchangers CNC-machined from Alloy 6061 aluminum billet with O-ring watertight seals and high surface-area internal flow paths, tested with heat loads up to 1200 watts.
• Electronics (Power Supplies, Controllers, Meters, Fans, Connectors) Supporting electronics for thermoelectric systems including fixed and variable output power supplies, temperature controllers, meters, power converters, fans, and connectors.
• Thermal Interface Materials (TIMs) Thermal greases, thermal sheets (indium foil, graphite foil, compound thermal sheets), thermal epoxies, and solder for efficient thermal transfer between components.
• Accessories (Heat Sinks, Cold Plates, Extender Blocks, Fasteners) Heat sinks, cold plates, extender blocks, fasteners, and additional electronics for assembling complete thermoelectric cooling and heating systems.
• Thermal Reference Sources Calibrated thermal reference devices used for testing and calibration of thermoelectric cooling systems.
• TXL Products Distinct thermoelectric product line offered under the TXL brand designation.
• Development Kits & Educational Products Educational and development kits for students, hobbyists, and engineers learning about thermoelectric technology and applications.
• Custom TECs Custom-designed and manufactured thermoelectric coolers to meet specific customer requirements including custom dimensions, power levels, configurations, and OEM integration.
• TEG-DMO-ADV Advanced Hand Heat Thermoelectric Generator Demonstrator Demonstration unit showing thermoelectric generator technology powered by human body heat, intended for educational and proof-of-concept applications.

Quantifiable outcome

• High temperature TECs rated to 200°C
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Direct peers

• Laird Thermal Systems: A leading global manufacturer of thermoelectric modules (Peltier coolers), assemblies, and liquid cooling systems, directly competing with Custom Thermoelectric across standard and custom TEC products for similar industrial, medical, and telecom applications.
• Ferrotec (USA) Corporation: Manufactures thermoelectric modules, generators, and thermal management solutions under its Ferrotec and Tempro brands, overlapping directly with Custom Thermoelectric's TEC, TEG, and assembly product lines.
• Marlow Industries: A long-established U.S. manufacturer of thermoelectric coolers, generators, and custom thermal solutions, directly comparable to Custom Thermoelectric in product breadth, customization services, and target industrial/OEM customers.
• TE Technology: Specializes in thermoelectric coolers, assemblies, temperature controllers, and cold plates, closely mirroring Custom Thermoelectric's combination of components, electronics, and integrated thermal solutions.
• Thermonamic Electronics: A Chinese thermoelectric materials and module manufacturer offering standard and custom TECs and TEGs globally, competing with Custom Thermoelectric on price, customization, and OEM supply in similar end-markets.
• KRYOTHERM: Russian-headquartered manufacturer of thermoelectric modules, generators, and Peltier-based cooling systems with global distribution, directly comparable to Custom Thermoelectric's TEC and TEG catalog.

Emerging players

• Hi-Z Technology: Specialist in thermoelectric generators and waste-heat recovery modules, overlapping with Custom Thermoelectric's TEG product line and addressing complementary energy-harvesting use cases.
• Wellen Thermal (WTL): A smaller specialty manufacturer of thermoelectric coolers and assemblies with focus on custom and lower-volume applications, comparable to Custom Thermoelectric in customization and target niche use cases.

Others

• Adafruit Industries: Resells small Peltier/TEC modules and TEC-based project kits to hobbyist and maker markets, sharing some of Custom Thermoelectric's Mini TEC and Development Kit & Educational offerings as a downstream channel rather than a direct manufacturer peer.

Broad incumbents

• II-VI Incorporated (now Coherent): Diversified photonics and semiconductor materials company whose Marlow Industries subsidiary competes directly in TECs/TEGs; provides context on the strategic scale and customer base Custom Thermoelectric competes against for high-end OEM design wins.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/customthermoelectric
• LinkedInlinkedin.com/company/custom-thermoelectric-llc

Revenue estimate

Valuation estimate

Number of profiles

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 Custom Thermoelectric