MG Duff
MG Duff is a UK-based manufacturer of sacrificial marine anodes (aluminum, zinc, magnesium) for cathodic protection, serving leisure boat owners, commercial shipping operators, and coastal infrastructure through a distributor network spanning the UK, Ireland, Netherlands, and Norway.
- Company typePrivate
- Founded1950
- HeadquartersChichester, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What MG Duff does
MG Duff (legal entity: M. G. Duff International Limited) is a UK-based specialty manufacturer of sacrificial marine anodes for cathodic protection, headquartered in Chichester, West Sussex. Founded in the early 1950s and operating for over 70 years, the company produces aluminum, zinc, and magnesium anodes at its UK foundry, serving three end segments: the leisure boat market, commercial deep-sea shipping, and coastal/shoreline infrastructure such as piling, jetties, lock and dock gates, linkspans, and pontoon systems. The underlying technology is electrochemical — self-sacrificing anodes preferentially corrode in seawater to protect metal hulls, propellers, and underwater structural components from galvanic and electrolytic corrosion.
The product portfolio spans hundreds of anode configurations across the three material families, supported by a "Find My Anode" online filtering tool, a comprehensive technical knowledge base covering fitting, bonding, quantities, and material selection, downloadable catalogues, and a bespoke design service for short lead-time custom orders. MG Duff holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications and positions itself as the UK's #1 brand for marine cathodic protection.
MG Duff operates a pure channel-partner distribution model, selling exclusively through approximately ten named online distributors — including A.S.A.P Supplies, Anode Outlet, Force 4 Chandlery, Marinestore, Marine Super Store, and Pirates Cave in the UK; CH Marine in Ireland; Exalto in the Netherlands; and Maritim in Norway — alongside brick-and-mortar marine chandleries accessed via a store locator. Revenue is generated through hardware sales on a quote-based pricing model that is not publicly disclosed. The company is privately held with no external funding, employs 11-50 staff, and reports operations across the UK and worldwide via its distributor network.
MG Duff firmographics
Firmographics- Name
- MG Duff
- Legal name
- M. G. Duff International Limited
- Website
- https://mgduff.co.uk
- Company type
- Private
- Founded year
- 1950
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- MG Duff is a UK-based manufacturer of sacrificial marine anodes (aluminum, zinc, magnesium) for cathodic protection, serving leisure boat owners, commercial shipping operators, and coastal infrastructure through a distributor network spanning the UK, Ireland, Netherlands, and Norway.
- Ownership category
- akta.pro rank
Where MG Duff is headquartered
LocationHeadquarters
- HQ city
- Chichester
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
MG Duff business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Sacrificial Anode Sales: Direct hardware sales of sacrificial marine anodes (aluminum, zinc, magnesium) through distributor network. Revenue generated from product catalog sales of anodes and cathodic protection systems to marine customers.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
MG Duff product offering
Product offeringCore offering
MG Duff manufactures sacrificial marine anodes (aluminum, zinc, and magnesium alloys) at its UK foundry in Chichester, producing hundreds of anode models for cathodic protection of marine vessels and structures. The company supplies a comprehensive range of anodes and complete cathodic protection systems exclusively through a network of online and brick-and-mortar distributor partners serving the leisure boat, commercial deep sea shipping, and coastal/shoreline infrastructure sectors.
Product overview
MG Duff is a UK-based manufacturer specializing in marine cathodic protection systems and sacrificial anodes. The product portfolio centers on three core anode materials (aluminum, zinc, and magnesium) available in hundreds of models and configurations. The company provides a comprehensive 'Find My Anode' tool to help customers select appropriate products. Their offerings span the marine sector from leisure boat markets to commercial deep sea shipping and coastal infrastructure. Technical support, design services, and quality control are emphasized as key differentiators.
Differentiator
Problem solved
Functional benefit
Products and services
- Sacrificial Marine Anodes Sacrificial anodes manufactured from aluminum, zinc, and magnesium alloys that protect boat hulls, propellers, and underwater marine structures from galvanic corrosion by preferentially corroding in place of the protected metal. Available in hundreds of models and configurations for marine cathodic protection.
- Aluminum Anodes Aluminum-alloy sacrificial anodes for marine cathodic protection applications, manufactured in-house at the UK foundry. Used for general seawater protection across leisure, commercial, and offshore applications.
- Zinc Anodes Zinc-alloy sacrificial anodes for marine cathodic protection applications, manufactured in-house at the UK foundry. Typically used in saltwater applications for hulls, propellers, and underwater fittings.
- Magnesium Anodes Magnesium-alloy sacrificial anodes for marine cathodic protection applications, manufactured in-house at the UK foundry. Typically used in freshwater or brackish water environments where higher driving voltage is required.
- Cathodic Protection Systems Complete cathodic protection systems for marine applications spanning leisure boats, commercial deep sea shipping, and coastal/shoreline structures such as piling, jetties, lock and dock gates, linkspans, and pontoon systems. Supplied with full design services and technical support.
Companies that use MG Duff
Customer profileSegments3 records
Ideal customer profiles3 records
MG Duff technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
MG Duff partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered standard.
- A.S.A.P SuppliesstandardUK-based online marine supplies distributor reselling MG Duff anodes to customers through their e-commerce platform.
- Anode OutletstandardUK-based online retailer specializing in anodes, distributing MG Duff products through their e-commerce website.
- CH MarinestandardIrish marine supplies distributor reselling MG Duff anodes to customers in Ireland.
- ExaltostandardNetherlands-based online marine retailer distributing MG Duff products to customers in the Netherlands.
- Force 4 ChandlerystandardUK-based marine chandlery with both online and physical store presence distributing MG Duff anodes.
- MarinestorestandardUK-based online marine supplies retailer distributing MG Duff products.
- Marine Super StorestandardUK-based online marine retailer distributing MG Duff anodes.
- MaritimstandardNorwegian marine supplies distributor reselling MG Duff anodes to Norwegian customers.
- Pirates CavestandardUK-based online marine chandlery distributing MG Duff products.
- SeawarestandardUK-based online marine supplies retailer distributing MG Duff products.
Scale indicators2 records
Recent moves4 records
Expansion highlights4 records
MG Duff competitors and assessment
Company assessmentDirect peers
- Cathelco: UK-headquartered specialist in marine cathodic protection systems for ships, offshore structures, and ports. Directly comparable to MG Duff on product category, target market, and channel, with overlap on commercial shipping and coastal infrastructure verticals.
- Tecnoseal: Italian manufacturer of sacrificial aluminum, zinc, and magnesium anodes for marine cathodic protection. A direct competitor serving the same leisure, commercial, and infrastructure end-markets as MG Duff with an essentially identical alloy portfolio.
- Martyr Anodes (CMP Group): CMP Group's marine anode brand — one of the most recognised global marine anode manufacturers serving leisure and commercial markets. Directly comparable to MG Duff on product range (Al/Zn/Mg), distributor-led channel, and end-customers.
- Farwest Corrosion Control: US-based distributor and engineering company supplying cathodic-protection materials, anodes, and design services across marine, pipeline, and infrastructure segments. Comparable to MG Duff in product range and in combining material supply with technical support.
- Wilson Walton International: UK-based cathodic-protection specialist serving offshore oil & gas, marine, and infrastructure markets. Comparable to MG Duff on target applications (hulls, jetties, offshore assets) and in offering design services alongside consumable anodes.
- Performance Metals: North American manufacturer of marine anodes and hardware for boats, OEMs, and distributors. A direct competitor with overlapping product range and a comparable channel-partner distribution strategy.
Broad incumbents
- Imenco: Norwegian marine-technology group whose portfolio includes cathodic-protection systems alongside cameras, lights, and subsea equipment. Wider scope than MG Duff, but directly comparable in the cathodic-protection and offshore / marine-infrastructure overlap.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks5 records
Key highlights7 records
Customer concentration
MG Duff social profiles
Digital presenceMG Duff compliance and trust
Trust signalCompliance3 records
MG Duff financial estimates
Financial estimateRevenue estimate
Valuation estimate
MG Duff leadership team
Management profileNumber of profiles
MG Duff funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
MG Duff M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about MG Duff
What does MG Duff do?
MG Duff manufactures sacrificial marine anodes (aluminum, zinc, and magnesium alloys) at its UK foundry in Chichester, producing hundreds of anode models for cathodic protection of marine vessels and structures. The company supplies a comprehensive range of anodes and complete cathodic protection systems exclusively through a network of online and brick-and-mortar distributor partners serving the leisure boat, commercial deep sea shipping, and coastal/shoreline infrastructure sectors.
Is MG Duff a public or private company?
MG Duff is a private company. It is classified as family owned and is currently operating.
When was MG Duff founded?
MG Duff was founded in 1950. It employs 11 to 50 people.
Where is MG Duff based?
MG Duff is headquartered in Chichester, United Kingdom, in the Europe region.
How does MG Duff make money?
One revenue line is on record: sacrificial Anode Sales.
Who are MG Duff's main competitors?
Direct peers on record are Cathelco, Tecnoseal, Martyr Anodes (CMP Group), Farwest Corrosion Control, Wilson Walton International and Performance Metals. Imenco is listed as a broad incumbent.
Does MG Duff have an API?
No public API is recorded for MG Duff.