Holroyd Components

What Holroyd Components does

Holroyd Components is a UK-based, privately held manufacturer of industrial electric heating elements founded in 1972. The company designs and produces surface heating solutions including flexible silicone heaters, Kapton (polyimide) film heaters, ceramic heaters, drum and jacket heaters, enclosure heaters, and preformed/custom-shaped heaters. Its technology is built around resistive heating elements embedded in silicone rubber, polyimide, and ceramic substrates, with engineering emphasis on fit-form-function customization for OEM integration rather than commodity off-the-shelf supply.

The business serves 1,500+ customers across 72 countries in eight stated verticals: Aerospace & Defense, Medical & Scientific, Communications, Construction, Automotive/EV, Renewable Energy, Industrial, and Catering. Notable named end-users include NASA (via the ARTEMIS program), SpaceX, Friedr. Freek GmbH, and Custom Heaters and Research Inc. The company holds ISO 9001:2015 quality certification and product-level certifications including CE, UKCA, UL/CSA, and VDE, alongside REACH and RoHS compliance. It maintains 22,000+ live product variants and reports 1M+ cumulative units shipped.

The commercial model is B2B direct manufacturing with quote-based custom pricing, supported by an online quote/configurator tool, a Fast Track expedited service tier, and a DHL logistics partnership for international distribution. Headcount is reported at 11-50 employees, indicating a niche specialty manufacturer with high-mix, low-to-medium volume production rather than commodity scale. No external funding rounds, M&A activity, or leadership transitions are disclosed in the source material.

Name

Holroyd Components

Legal name

Holroyd Components Limited

Website

https://holroydcomponents.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

Holroyd Components is a UK-based, privately held manufacturer of custom industrial electric heating elements — silicone, Kapton, ceramic, drum, and enclosure heaters — serving 1,500+ OEM customers across aerospace, medical, EV, renewable energy, and industrial verticals in 72 countries.

Ownership category

akta.pro rank

Product category

Industrial Heating Elements

NAICS

Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Heat Exchangers & Thermal Transfer Equipment (IMAHAKAC)

akta.pro secondary industries

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Aerospace Thermal Management, Insulation & Fire Protection Materials (IMABANAE)

Keywords

• Industrial heating elements
• Flexible silicone heaters
• Kapton polyimide heaters
• Drum and jacket heaters
• Ceramic heater plates

Headquarters

HQ city

Saffron Walden

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Heating Elements: Manufacture and sale of bespoke industrial electric heating elements including flexible silicone heaters, jacket heaters, drum heaters, ceramic heaters, enclosure heaters, and preformed heaters. Revenue is generated through one-time product sales with custom specifications driving pricing.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Holroyd Components designs and manufactures bespoke industrial electric heating elements, with a core focus on flexible silicone heaters built using etched foil and wire wound element construction. The product range also includes Kapton (polyimide) heaters, preformed pipe and vessel heaters, ceramic flat panel heaters, enclosure heaters, drum and jacket heaters, and gas/pump line heaters, supplemented by temperature controllers, sensors, thermal devices, foam insulation, and fixings. Products are made-to-order at the UK manufacturing facility in Saffron Walden, supporting high-to-low volume production including prototypes.

Product overview

Holroyd Components offers a comprehensive portfolio of bespoke industrial electric heating elements, with flexible silicone heaters serving as the core product line. The portfolio includes Kapton heaters and ceramic heaters for high-temperature applications, alongside specialized offerings such as preformed pipe/vessel heaters and enclosure heaters. Drum and jacket heating solutions (HISD, HTSD, HSSD) address container heating needs. These heating products can be enhanced with a full range of accessories including temperature controllers, sensors (PT100, thermocouples, thermistors), thermal limiting devices, and foam insulation. The company operates as a manufacturer providing both standard stock items and fully custom bespoke solutions from prototype to high-volume production, with ISO 9001:2015 quality certification.

Differentiator

Problem solved

Functional benefit

Products and services

• Flexible Silicone Heaters Bespoke flexible heating elements made from silicone rubber with embedded heating elements, available in Etched Foil or Wire Wound construction. They deliver durability in harsh conditions, uniform heat distribution, fast heat-up, energy efficiency, and easy installation on complex surfaces for industrial customers across aerospace, medical, communications, and industrial sectors.
• Kapton Heaters Flexible heating elements using Kapton (polyimide) film technology suitable for applications requiring temperatures up to 200°C, used in aerospace and other demanding environments (for example, SpaceX rocket applications).
• Preformed Silicone Heaters

Quantifiable outcome

• Products shipped to over 1,000,000 units across 1,500+ companies in 72 countries
• +3 more outcomes

Named customers4 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• DHLoperationalOthersDHL courier handles export documentation for international shipments, supporting the company's global shipping operations. They prepare commercial invoices with each shipment for international deliveries.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Watlow Electric Manufacturing Company: Watlow is a US-headquartered global leader in industrial electric heating elements, thermal sensors, and complete thermal solutions. It is the most direct comparable to Holroyd in terms of product (resistance heaters, silicone heaters, cartridge heaters) and customer base (industrial OEMs, aerospace, medical).
• Chromalox (Spirax Group): Chromalox is a long-established manufacturer of industrial electric heating elements and thermal solutions, now part of Spirax Group. It competes directly with Holroyd in surface heaters, process heaters, and immersion heaters for industrial customers.
• Backer Hotwatt: Backer Hotwatt manufactures electric heating elements including cartridge, strip, and silicone heaters for industrial and commercial applications. It is a direct product-line overlap with Holroyd's custom heating element portfolio.
• Tutco Heating Solutions Group: Tutco is a specialist manufacturer of electric heating elements and assemblies serving industrial, aerospace, medical, and commercial customers. It is a direct competitor in custom and standard heating element manufacturing.
• Durex Industries: Durex Industries manufactures electric heating elements and thermal assemblies for industrial, semiconductor, medical, and aerospace OEMs. It is a direct competitor in custom heater design and high-reliability applications.
• Heatron: Heatron designs and manufactures custom industrial heaters, heating elements, and thermal systems for OEM customers. Comparable to Holroyd's bespoke, application-engineered approach in industrial and aerospace markets.
• Tempco Electric Heater Corporation: Tempco designs and manufactures electric heating elements, temperature sensors, and controls for industrial OEMs. It competes with Holroyd in custom band, cartridge, and silicone-style heaters.
• Friedr. Freek GmbH: Friedr. Freek is a German manufacturer of industrial heating elements and thermal solutions, listed as a long-standing Holroyd customer/partner but also an active competitor in European electric heating element markets.

Emerging players

• Omega Engineering (Specimen Group): Omega sells heating elements, sensors, and process control products to industrial buyers with strong catalog/distribution reach. It overlaps with Holroyd's accessory categories (controllers, sensors) but focuses more on standardized catalog sales than bespoke heater design.

Broad incumbents

• Spirax Group plc: Spirax Group is a global industrial thermal energy and fluid technology group whose Chromalox division overlaps directly with Holroyd. Its broader steam and process-heating portfolio dwarfs Holroyd's niche and represents the larger incumbent competitive set.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCM4ugOXY7AU8a4ApJfHD8sA?view_as=subscriber
• LinkedInlinkedin.com/company/holroyd-components-limited
• Facebookfacebook.com/holroydcomponents

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 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 Holroyd Components