Thorne & Derrick International

What Thorne & Derrick International does

Thorne & Derrick International (legal entity: Barnbury Enterprises Limited) is a UK-based specialist distributor founded in 1985, headquartered in Chester-le-Street with a dedicated Export Sales Office in Bristol. The company distributes low-voltage (LV), medium-voltage (MV) and high-voltage (HV) cable installation, jointing, substation and electrical equipment, offering 100,000+ products from more than 100 manufacturers as a single-source supplier. Major distribution agreements include Nexans (UK Specialist Stockist & Distributor for power cable accessories up to 33kV), 3M (Kitting Partners for cable joints and terminations from 600V to 66kV, appointed 2024-09-17), ABB, Prysmian, Pfisterer, CMP, Ellis Patents, Roxtec, CATU Electrical, Elastimold, and Marechal.

The product portfolio spans cable joints and terminations (LV cold shrink/heat shrink/resin; MV/HV up to 66kV), cable glands, cleats, duct seals, cable pulling equipment, earthing and lightning protection, electrical safety equipment including arc flash PPE, feeder pillars, fuses, surge arresters, hazardous area certified products (ATEX/IECEx), overhead line equipment, and a separate heating/process instrumentation line on heatingandprocess.com. Underlying technology is purely distribution and stocking — there are no proprietary technology products; the company aggregates and supports third-party manufactured equipment with technical sales-engineer advisory services.

The business model is product distribution and sale, with revenue generated through one-time product transactions. Pricing is quote-based and not publicly disclosed. The go-to-market is sales-led via technical sales engineers serving UK domestic (Chester-le-Street) and international (Bristol) customers, targeting Distribution Network Operators (DNOs), Independent Connection Providers (ICPs), HV contractors, specifiers, wholesalers and end-users across utilities, renewable energy (solar/wind/offshore), construction and infrastructure, rail, mining and quarrying, oil/gas/petrochemical, offshore/marine, and water utility segments. The company has served customers in 120+ countries across five continents since 1985, with multi-channel technical content marketing (POWER Newsletter with 15,000+ subscribers, 384+ page blog, 13 industry infographics, webinars, industry forums) supporting demand generation.

Name

Thorne & Derrick International

Legal name

Barnbury Enterprises Limited

Website

https://thorneandderrick.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

UK specialist distributor (founded 1985, trading as Barnbury Enterprises Limited) of LV, MV & HV cable installation, jointing, substation and electrical equipment from 100+ manufacturers, serving utilities, renewable energy, construction, rail, mining, oil & gas, offshore, and water sectors across 120+ countries.

Ownership category

akta.pro rank

Product category

Industrial Electrical Equipment Distribution

NAICS

Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers (423810)

SIC

Wholesale-Lumber & Other Construction Materials (5030)

akta.pro primary industry

Underground Mining Equipment (Loaders/LHDs, Continuous Miners, Longwall Systems) (IMAKANAB)

Keywords

• Cable jointing equipment
• Electrical equipment distribution
• Hazardous area equipment
• MV HV cable accessories
• Substation electrical equipment

Headquarters

HQ city

Chester-le-street

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Product Distribution and Sales: Thorne & Derrick generates revenue through the distribution and sale of LV, MV & HV cable installation, jointing, substation and electrical equipment from over 100 manufacturers. Revenue is derived from product sales with a multi-million pound stock holding enabling rapid fulfilment. The company serves contractors, specifiers, wholesalers and end-users, consolidating supply chain for cable, electrical and power products through single-source logistics to UK and international destinations.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels10 records

Core offering

Thorne & Derrick International is a specialist distributor of LV, MV and HV cable installation, jointing, substation and electrical equipment, supplying 100,000+ products from 100+ manufacturers to contractors, specifiers, wholesalers and end-users. The company holds multi-million pound stock and consolidates supply chain through a UK Sales Office in Chester-le-Street and an Export Sales Office in Bristol, serving customers across 120+ countries on five continents.

Product overview

Thorne & Derrick International is a specialist distributor of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment established in 1985. The company offers over 100,000 products from 100+ manufacturers as a single-source supplier. The product portfolio is organized across two main websites: Power and Cables (thorneandderrick.com/powerandcables.com) covering LV/MV/HV cable joints, terminations, glands, cleats, duct seals, cable pulling, earthing, and electrical safety; and Heating and Process (heatingandprocess.com) covering hazardous area products, trace heating, gas detection, and process instrumentation. Key product categories include cable joints (LV cold shrink/heat shrink/resin joints, MV/HV joints for 11kV-66kV), cable terminations, cable glands, cable cleats, cable duct and duct seals, cable pulling equipment, earthing and lightning protection, electrical safety equipment including CATU arc flash clothing and PPE, feeder pillars, fuses, surge arresters, and hazardous area certified products. The company distributes products from major manufacturers including 3M, Nexans Euromold, ABB, CMP, Ellis Patents, Elastimold, Pfisterer, CATU Electrical, Prysmian, Roxtec, and many others. T&D serves utilities, power, renewable energy, construction, rail, mining, offshore, oil, gas, and petrochemical industries across 120+ countries.

Differentiator

Problem solved

Functional benefit

Products and services

• LV Cable Joints - Cold Shrink, Heat Shrink & Resin Heat shrink, cold shrink and resin cable joints to suit XLPE, EPR, PVC and PILC cables up to 3.3kV including straight, branch, multi-service and pot-end configurations for zero halogen, fire resistant, street lighting, rail, hazardous area and marine applications.
• HV Cable Joints, Terminations & Connectors Heat shrink, cold shrink, push-on and plug-in type cable terminations and separable connectors for MV-HV cable connections to switchgear, transformers, motors and overhead lines, including surge arresters, bushings and connectors rated for 11kV, 33kV and 66kV.
• Medium Voltage & High Voltage Cables 11kV-33kV Specialist medium and high voltage cables for 11kV, 22kV and 33kV networks including MV HV BS6622 BS7835 BS7870, fire resistant, offshore and marine NEK 606 BFOU RFOU, flexible rubber reeling cables, low smoke zero halogen and airfield ground lighting cables.
• Cable Glands Brass, aluminium and nylon cable glands to terminate armoured, braided, lead sheathed and unarmoured cable in industrial, hazardous area and high voltage installations including flameproof, submersible, barrier, low smoke zero halogen and high fault current rated variants.
• Cable Cleats, Clamps & Hangers Nylon, aluminium and stainless steel cable cleats to retain LV-HV cables in single, trefoil, quad and bundled arrangements with moderate and high fault current ratings, plus GRP and galvanised steel J-type cable support hangers.
• Cable Jointing Tools Complete range of cable preparation and jointing tools for LV-EHV underground power cables, fibre optic and overhead lines including multi-function and jointer tool kits for 11-33kV MV power and transmission/distribution cables.
• Cable Cutting & Crimping Tools Battery, hydraulic and ratchet type cutting tools (up to 270mm) and crimping tools (up to 1000sqmm) to suit all types of LV-HV cables, overhead line conductors, wire rope, flexible risers and subsea umbilicals.
• Electrical Safety Equipment CATU Electrical Safety Equipment range including voltage detectors, substation safety equipment, switchgear matting, earthing clamps, insulating gloves, portable earthing and short circuit systems, rescue hooks and phase comparators for LV, MV, HV and EHV workers.
• Arc Flash Clothing, PPE & Protection Kits Protective clothing and equipment including suits, coveralls, jackets, trousers, shirts, polo shirts and helmets to protect workers against arc flash hazards in electrical installations.
• Earthing - Copper Earth Tapes, Rods, Bars & Accessories

Quantifiable outcome

• Over 120 countries served across 5 continents since 1985
• +1 more outcomes

Named customers1 record

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Twelve partnerships are on record, tiered minor and core.

• C&P Engineering ServicesminorStrategic or Co-development Partner · 11 February 2026Thorne & Derrick is participating as a speaker at the C&P Engineering Services Hazardous Area Safety Forum scheduled for 11 February 2026. The forum focuses on mechanical and non-electrical safety in hazardous area environments within the water utilities sector, with presentations on compliance, safety and asset integrity.
• 3McoreChannel Partner/ Reseller/ Distributor · 17 September 2024Thorne & Derrick appointed 3M Kitting Partners for the supply of cable joints and terminations from 600V to 66kV. T&D provide kitting services and distribution of 3M Scotchcast, 3M Scotch and 3M Cold Shrink products.
• NexanscoreChannel Partner/ Reseller/ DistributorT&D are Nexans UK Specialist Stockist & Distributor for their range of Power Cable Accessories including cold shrink cable joints, cable terminations and screened separable connectors for MV HV cable connecting, jointing and terminating up to 33kV. The partnership also includes MV HV Euromold Screened Separable Connectors, surge arresters, bushings and jumper leads.
• PrysmiancoreChannel Partner/ Reseller/ DistributorThorne & Derrick distributes Prysmian cables including offshore and marine LV MV HV cables (Prysmian Draka), low smoke zero halogen cables (Prysmian Afumex), and Prysmian cable cleats, cable joints, cable glands and tools.
• ABBcoreChannel Partner/ Reseller/ DistributorT&D distribute ABB MV Power Products including indoor and outdoor primary and secondary distribution equipment for substation repair, retrofit and upgrade projects. Also distributes ABB fuses, surge arresters and MV HV electrical distribution products.
• CATU ElectricalcoreChannel Partner/ Reseller/ DistributorT&D are stockists and distributors for the CATU Electrical Safety Equipment range including voltage detectors, substation safety equipment, switchgear matting, earthing clamps, insulating gloves, portable earthing and short circuit systems, rescue hooks and phase comparators for LV, MV, HV and EHV workers.
• PfisterercoreChannel Partner/ Reseller/ DistributorT&D distribute Pfisterer CONNEX MV HV cable plugs and terminations including SEANEX HV offshore cable connectors up to 66kV for offshore wind inter-array cabling applications.
• Ellis PatentscoreChannel Partner/ Reseller/ DistributorT&D distribute Ellis Patents cable cleats in nylon, aluminium and stainless steel for retaining LV-HV cables in single, trefoil, quad and bundled arrangements with moderate and high fault current ratings.
• RoxteccoreChannel Partner/ Reseller/ DistributorT&D distribute Roxtec cable transits for sealing cable ducts and building penetrations against smoke, gas, water ingress, humidity and dust while providing protection from rodents, vibration and electromagnetic pulse/interference.
• CMP ProductscoreChannel Partner/ Reseller/ DistributorT&D distribute CMP cable glands including brass, aluminium and nylon cable glands to terminate armoured, braided, lead sheathed and unarmoured cable in industrial, hazardous area and high voltage installations.
• MarechalcoreChannel Partner/ Reseller/ DistributorT&D distribute Marechal industrial and hazardous area plugs and sockets for high-current and high-voltage applications including Marechal DSN series ATEX certified products.
• ElastimoldcoreChannel Partner/ Reseller/ DistributorT&D distribute Elastimold separable connectors, cable joints, terminations and cable accessories for MV HV applications.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Rexel: Global electrical distribution group with significant UK presence through Rexel UK. Comparable as a multi-category electrical distributor serving contractors and industrial customers, though much larger and broader in scope than T&D's MV/HV specialist focus.
• Sonepar: World's largest independent electrical distributor with UK operations including events and industrial verticals. Overlaps with T&D on electrical product distribution to contractors and industrial customers, though Sonepar operates a broader generalist model versus T&D's MV/HV specialist positioning.
• WESCO International (Anixter): Global electrical, communications, and utility distribution leader following Anixter acquisition. Comparable in serving utility and infrastructure customers with cable and electrical products, though much larger scale and broader portfolio than T&D.
• Edmundson Electrical: One of the UK's largest electrical wholesalers with over 250 branches, serving contractors and industrial customers with electrical products. Overlaps with Thorne & Derrick on the electrical distribution side though less specialised on HV cable jointing/substation equipment.
• City Electrical Factors (CEF): Major UK electrical wholesaler with 390+ branches focused on industrial, commercial, and domestic electrical products. Comparable as a UK-headquartered electrical distributor, though CEF is more retail-branch oriented versus T&D's specialist direct-sales model.

Others

• Nexans: Global cable manufacturer and key T&D distribution partner (T&D is Nexans UK Specialist Stockist & Distributor). Comparable as a supplier of MV/HV cables and accessories in the same end-markets, but operates upstream as a manufacturer rather than distributor.
• Prysmian Group: World's largest cable manufacturer and T&D distribution partner for offshore/marine cables (Prysmian Draka, Afumex). Comparable in serving utilities, offshore wind, and infrastructure with cable products, but as a manufacturer/supplier rather than distributor.

Direct peers

• WF Senate: UK specialist cable distributor serving utilities, rail, and infrastructure with cable accessories, jointing, and termination products. Very close direct peer in terms of product focus (LV/MV/HV cable jointing and accessories) and customer base (UK utilities and infrastructure contractors).
• Power Cables Ltd: UK-based specialist cable and accessories distributor for LV/MV/HV applications. Direct peer in the UK specialist cable distribution market, serving similar utility, contractor, and industrial customer segments.
• Denmans Electrical Wholesalers: UK electrical wholesaler serving trade and commercial customers with electrical products including cable accessories. Comparable as a UK-based electrical distributor, though broader in scope than T&D's specialist MV/HV positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/ThorneanDerrick
• YouTubeyoutube.com/user/thorneandderrick
• Facebookfacebook.com/thorneandderrick
• LinkedInlinkedin.com/company/thorne-&-derrick-uk
• Instagraminstagram.com/thornederrick

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Thorne & Derrick International