THORNE & DERRICK

What THORNE & DERRICK does

Thorne & Derrick, trading as Thorne & Derrick International and legally constituted as Barnbury Enterprises Limited, is a UK-based specialist electrical distributor founded in 1985 and headquartered in Chester-le-Street, Tyne and Wear. The company distributes LV, MV, HV and EHV cable installation, jointing, substation and electrical distribution equipment to utilities, contractors and industrial customers, with a catalogue exceeding 100,000 products sourced from more than 100 manufacturers including 3M, Nexans, Pfisterer, ABB, Prysmian, Roxtec, CMP, Cembre, Ellis Patents, Emtelle, Marechal, Ripley Tools, Powerstar, CATU, Furse, Elastimold, Klauke, Hauff Technik and Sicame. The product range spans cable joints and terminations (cold shrink, heat shrink and resin), cable glands and cleats, duct seals and cable transits, surge arresters, cable pulling and laying equipment, earthing and lightning protection, arc flash PPE, cable jointing tools, and a transformer line (smart amorphous-core, dry-type, liquid-filled and cast-resin). In 2024 the company was appointed a 3M Kitting Partner for products from 600V to 66kV.

The business operates a stockist model underpinned by a multi-million pound inventory, enabling immediate dispatch and express global logistics. Revenue is generated through one-time product sales via UK and export sales teams, with pricing handled through quote requests rather than public list pricing. The company employs 41 people and is privately held with no parent, no subsidiaries and no disclosed institutional investment. GTM is channel-led: direct sales to enterprise buyers in the UK plus international export, complemented by a digital marketing stack including a 15,000+ subscriber Power Newsletter, the Jointers Blog, social channels (LinkedIn, X, Facebook, Instagram), EDM campaigns, digital flipbooks, webinars with manufacturers such as 3M, and memberships in NEPIC, NOF, T&D World and OilVoice. Served verticals are diversified across power transmission and distribution utilities, onshore and offshore wind, solar, rail, oil and gas/petrochemical, data centres and battery storage, with stated UK and international reach and no operating restrictions.

No first-party financials, funding rounds, M&A activity, leadership changes, regulatory actions, AI/ML capabilities, mobile applications, API products or proprietary technology are disclosed in the source materials. The company also operates a sister site, heatingandprocess.com, extending its specialist distribution model into trace heating, drum heaters and hazardous-area process equipment, indicating adjacent-vertical diversification within the same specialist-distribution operating model.

Name

THORNE & DERRICK

Legal name

Barnbury Enterprises Limited

Website

https://powerandcables.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Thorne & Derrick is a UK-based specialist electrical distributor founded in 1985, supplying 100,000+ LV, MV, HV and EHV cable installation and electrical distribution products from 100+ manufacturers to power utilities, renewable energy, rail, oil & gas and data centre customers globally.

Ownership category

akta.pro rank

Headquarters

HQ city

Chester-le-Street

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Product Distribution: Distribution of electrical equipment and cable accessories to utilities, contractors and industrial customers in power transmission, distribution, renewable energy, rail, oil & gas and other sectors. Stockist model with multi-million pound inventory and express global logistics.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels8 records

Core offering

Thorne & Derrick is a specialist distributor of LV, MV, HV and EHV cable installation, jointing, substation and electrical distribution equipment, holding more than 100,000 products from over 100 manufacturers including 3M, Nexans, Pfisterer, ABB and Prysmian. The company supplies utilities, contractors and industrial customers in the power transmission and distribution, renewable energy, rail, oil and gas, data centre, battery storage and utility sectors via a multi-million pound stock holding with express global logistics and free technical support.

Product overview

Thorne & Derrick is a specialist distributor of LV, MV, HV, and EHV cable installation, jointing, substation, and electrical distribution equipment. They do not manufacture products themselves but distribute from over 100+ manufacturers including 3M, Nexans, Pfisterer, ABB, Prysmian, and others. Their portfolio exceeds 100,000 products spanning cable joints (cold shrink, heat shrink, and resin technologies for LV through 33kV), cable terminations, cable glands, cable cleats, duct seals, surge arresters, cable pulling and laying equipment, earthing and lightning protection, arc flash protection clothing, and transformers (smart amorphous core, dry type, liquid filled, and cast resin). The company serves power transmission and distribution industries including wind, solar, rail, oil/gas, data centers, battery storage, and utility sectors. Their core expertise is in providing complete supply solutions for underground cables, overhead lines, substations, and electrical construction projects.

Differentiator

Problem solved

Functional benefit

Products and services

• LV Cable Joints and Installation Equipment Low voltage cable joints using cold shrink, heat shrink and resin technologies for cable connections up to 1000V, distributed to UK and international customers for LV cable installation projects.
• MV HV Cable Joints and Terminations (Cold Shrink and Heat Shrink) Medium and high voltage cable joints and terminations rated for 11kV, 33kV and 66kV applications using cold shrink and heat shrink technologies, including Nexans Euromold connectors and Nexans JTS heat shrink joints.
• MV HV Power Products, Surge Arresters and Bushings Medium and high voltage power products including surge arresters for overvoltage protection and bushings for electrical equipment connections, rated up to 66kV.
• Cable Cleats and Cable Hooks Cable support and retention devices including trefoil and axis cleats from manufacturers such as Ellis Patents, plus CableSafe S-shaped hooks for safe cable support, suspension and hanging in industrial and utility installations.
• Cable Pulling and Laying Equipment Equipment for pulling and laying underground cables including cable socks, cable rollers and drum handling equipment, supplied from Ripley Tools and other manufacturers.
• Underground Cable Protection Cable protection systems including covers, tiles and troughs to protect underground cables from mechanical damage during and after installation.
• Cable Duct Ducting systems including Emtelle products for protecting and routing underground power and telecommunications cables.
• Duct Seals Sealing systems for cable ducts, including Hauff Technik products, providing protection against water, gas and fire ingress in underground cable installations.
• Earthing and Lightning Protection Earthing components including Furse copper earth tapes, rods and bars for electrical system grounding and lightning protection of substations and buildings.
• Fuses MV HV Medium and high voltage fuses rated for 11kV and 33kV power distribution protection, suitable for utility and industrial switchgear applications.
• Arc Flash Protection and Clothing Personal protective equipment and clothing for workers exposed to arc flash hazards in MV HV electrical environments, including PPE from CATU.
• Cable Cutting and Cable Crimping Tools Insulated and standard tools for cutting and crimping LV to HV cables including hydraulic and manual options, supplied from Cembre, Klauke and Ripley Tools.
• Cables LV MV HV Power cables rated for low, medium and high voltage applications including Prysmian offshore and submarine cables for renewable energy and utility projects.
• Cable Transits Sealing systems including Roxtec products for cables passing through walls, floors or enclosures, providing fire, water and gas protection in buildings, substations and offshore structures.
• Feeder Pillars Outdoor electrical enclosures for power distribution in utility and industrial applications including street lighting and small scale distribution.
• Cable Jointers Tools Specialized tools for cable jointers including jointing kits, semi-con shavers and stripping tools from Ripley Tools and other manufacturers for LV to EHV cable jointing.
• Surge Arresters Overvoltage protection devices for medium and high voltage systems rated up to 66kV, used to protect transformers, switchgear and cables from lightning and switching surges.
• Plugs, Sockets, Decontactors and Single Pole Connectors Electrical connectors including Marechal P66 high voltage plugs, sockets and decontactors for industrial power connections including ATEX hazardous area applications.
• Cable Glands Devices for securing and sealing cable ends entering equipment or enclosures, including CMP cable glands for industrial and hazardous area applications.
• Cable Lugs and Connectors Terminal connectors including Cembre lugs for joining cables to equipment terminals and busbars in LV MV HV installations.
• Overhead Line Equipment MV HV EHV Equipment for overhead power lines including Sicame accessories for medium, high and extra high voltage transmission networks.
• Cut Outs and Isolators Switching devices for isolating sections of electrical networks for maintenance, suitable for MV HV distribution systems.
• Hazardous Area Electrical Equipment Electrical equipment certified for use in explosive atmospheres including ATEX hazardous area lighting, plugs, sockets and glands, targeted at oil, gas and petrochemical applications.
• Smart Transformers (Powerstar SO-LO) Super low loss amorphous core distribution transformers with integrated online remote monitoring capabilities, distributed from Powerstar and described as the only amorphous core transformers manufactured in the UK.
• Dry Type Transformers Air-cooled dry type transformers suitable for indoor and outdoor applications, distributed from Powerstar and widely used in data centres and critical facilities, rated from 1kVA to 10,000kVA.
• Liquid Filled Transformers Transformers using mineral oil or synthetic fluid for cooling, distributed from Powerstar, offering long life expectancy for marine, offshore and industrial applications.
• Cast Resin Transformers Dry type transformers using epoxy resin and quartz powder insulation with flame retardant properties, distributed from Powerstar, rated 100kVA to 3MVA for demanding and hazardous area applications.

Quantifiable outcome

• 15,000+ newsletter subscribers indicating strong market presence and customer engagement

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

19 partnerships are on record, tiered core, major and minor.

• 3M ElectricalcoreChannel Partner/ Reseller/ DistributorThorne & Derrick distributes 3M Electrical products including cold shrink cable joints and terminations, Scotchcast products. Appointed 3M Kitting Partners for 600V to 66kV products. Long-standing distribution relationship.
• NexanscoreChannel Partner/ Reseller/ DistributorDistributor of Nexans Euromold connectors (MV-HV 11kV 33kV 66kV), Nexans Cold Shrink Cable Joints, and Nexans JTS heat shrink joints. Featured manufacturer on website.
• PfisterercoreChannel Partner/ Reseller/ DistributorDistributor of Pfisterer CONNEX connectors (MV-HV Inner Cone Plugs & Cable Terminations) and PFISTERER SEANEX HV Offshore Cable Connectors up to 66kV. Regular featured supplier in newsletters.
• ABBmajorChannel Partner/ Reseller/ DistributorDistributor of ABB electrical products and power equipment for LV MV HV applications.
• PrysmianmajorChannel Partner/ Reseller/ DistributorDistributor of Prysmian cables, cable cleats, cable joints and cable glands for LV MV HV applications including offshore cables.
• RoxtecmajorChannel Partner/ Reseller/ DistributorDistributor of Roxtec cable transits and sealing systems for cable protection against fire, gas and water ingress.
• CMP Cable GlandsmajorChannel Partner/ Reseller/ DistributorDistributor of CMP cable glands for industrial and hazardous area applications.
• CembremajorChannel Partner/ Reseller/ DistributorDistributor of Cembre cable cutting and crimping tools for LV HV cable installation.
• Ellis PatentsmajorChannel Partner/ Reseller/ DistributorDistributor of Ellis Patents cable cleats including Emperor Cable Cleats and Trefoil Cleats for cable support and safety.
• EmtellemajorChannel Partner/ Reseller/ DistributorDistributor of Emtelle cable duct products for underground cable protection and installation.
• MarechalmajorChannel Partner/ Reseller/ DistributorDistributor of Marechal P66 high voltage connectors, plugs and sockets including ATEX/hazardous area products. Featured in industrial high-current high-voltage marketing campaigns.
• Ripley ToolsmajorChannel Partner/ Reseller/ DistributorDistributor of Ripley Utility Tools including cable jointing tools, semi-con shaving tools and utility cable tools. Featured supplier in newsletters.
• PowerstarmajorChannel Partner/ Reseller/ DistributorDistributor of Powerstar transformers including LV MV HV distribution transformers, smart transformers, dry type transformers, cast resin transformers and liquid filled transformers (100kVA to 3MVA, up to 11kV).
• CATU ElectricalmajorChannel Partner/ Reseller/ DistributorDistributor of CATU electrical safety equipment for SAPs, linesmen, jointers and electrical engineers.
• FurseminorChannel Partner/ Reseller/ DistributorDistributor of Furse earthing and lightning protection equipment.
• ElastimoldminorChannel Partner/ Reseller/ DistributorDistributor of Elastimold connectors for MV HV cable connections in petrochemical and industrial applications.
• KlaukeminorChannel Partner/ Reseller/ DistributorDistributor of Klauke insulated cable cutting and crimping tools (Klauke Orange Line) for LV HV applications.
• Hauff TechnikminorChannel Partner/ Reseller/ DistributorDistributor of Hauff Technik cable sealing and entry systems.
• SicameminorChannel Partner/ Reseller/ DistributorDistributor of Sicame overhead line equipment and electrical accessories for MV HV EHV networks.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Ellis Patents: UK manufacturer of cable cleats and supports — partner brand distributed by Thorne & Derrick, but sells direct to large utility and rail customers as a manufacturer-incumbent.
• Rexel: Global electrical distribution major with deep UK presence through Rexel UK. Competes with Thorne & Derrick across cable accessories, lighting and broader electrical products, but at a much larger scale and broader portfolio.
• Farnell / element14: Distributor of electronic, electrical and industrial products owned by Premier Farnell. Adjacent competitor in cables, connectors and tooling with a strong digital-first catalogue.
• WESCO International (incl. Anixter): Global electrical, communications and utility distribution major following the Anixter acquisition. Competes for utility and renewable-energy cable/accessory spend at scale and with strong utility relationships.
• Cembre: Italian manufacturer of cable accessories, crimping and cutting tools — distributed by Thorne & Derrick but also sells directly and through other distributors in adjacent markets.
• RS Components: Global distributor of electronic and electrical components serving industrial, MRO and design engineers. Adjacent competitor for cable accessories, glands, tools and safety equipment with much larger digital catalogue.

Direct peers

• City Electrical Factors (CEF): UK's largest specialist electrical products retailer/wholesaler with nationwide branch network. Overlaps with Thorne & Derrick on cables, accessories and contractor supply, though CEF skews retail/SME rather than utility.
• Edmundson Electrical: UK specialist electrical wholesaler serving contractors, industrial and commercial customers with cables, accessories and lighting. Closest direct peer in terms of UK market focus and customer overlap.
• BEW Electrical Distributors: Independent UK electrical wholesaler supplying cable, accessories and lighting to industrial and contractor customers. Direct competitor on UK cable jointing and accessory distribution.

Others

• Power & Cables (Sister Site: Heating & Process): Sister site of Thorne & Derrick covering hazardous-area and process heating equipment. Not a competitor but illustrates the company's adjacent diversification into hazardous-area distribution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/ThorneandD
• LinkedInlinkedin.com/company/thorne-derrick-uk

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 THORNE & DERRICK