What Interclamp does

Interclamp Ltd (legal name changed from Grainger Tubolt Ltd in 2024) is a UK-based manufacturer of modular tube clamp and key clamp handrail fittings, headquartered in Pembroke Dock, Wales. The company sells a standardised system of hot-dipped galvanised steel components with a secondary coating for enhanced corrosion protection, designed to be assembled on-site using only a basic hex key, eliminating the need for welding. Its product range also includes Glass Reinforced Polymer (GRP/FRP) fittings for electrically sensitive and chemically aggressive environments, a DDA Assist range engineered for UK Equality Act 2010 and Building Regulations Part M compliance, and complementary safety products including pedestrian barriers, crash barriers, self-closing safety gates, roof edge protection, steel palisade fencing, kick plates and mesh panels.

The business is family-owned, with five generations of Grainger family involvement in pipe fittings dating back to 1856; Elizabeth Grainger has served as Managing Director since 1992. The Interclamp brand was launched in 2002, and the company now operates wholly-owned sales and distribution subsidiaries in Australia (Interclamp Pty Ltd in Campbellfield, Melbourne, established 2014, with a Perth branch added in 2019) and an Interclamp Europe Limited entity, alongside an extensive global network of approved distributors and localised websites for Australia, France, Germany, Italy, Spain and Poland.

Interclamp generates revenue primarily through hardware sales of components and pre-configured systems to industrial, railway/transit, public access and roads/highways customers, supplemented by powder coating and tube cutting services. Its primary customer segments include industrial facilities, railway operators (Queensland Rail, Vic Rail), transport infrastructure (Eurotunnel), water treatment works, and retail/hospitality shop fitters. Sales are conducted directly from UK and Australian offices for enterprise projects and through approved distributors for mid-market and international volume, with ex-stock availability cited as a key differentiator versus custom-fabricated welded alternatives.

Name

Interclamp

Legal name

Interclamp Ltd

Website

https://interclamp.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Interclamp is a UK-based, family-owned manufacturer of modular galvanised tube clamp and key clamp handrail fittings, plus GRP, DDA-compliant and safety barrier products, sold globally to industrial, railway, public access and retail customers via direct offices and distributors.

Ownership category

akta.pro rank

Product category

Tube Clamp Handrail Fittings

NAICS

Fabricated Pipe and Pipe Fitting Manufacturing (332996)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Fasteners, Anchors & Connectors (Bolts, Weld Studs, Plates) (IMADACAJ)

akta.pro secondary industries

Steel Grating, Catwalks & Safety Platforms (IMADACAI), Pipe & Tube Manufacturing (Seamless & Welded OCTG/Line Pipe/Structural Tube) (IMAKABAI)

Keywords

• Tube clamp fittings
• Key clamp handrails
• Modular handrail systems
• Safety barrier hardware
• Galvanised tube fittings

Headquarters

HQ city

Pembroke Dock

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Tube Clamp and Key Clamp Fittings Sales: Sale of galvanised steel tube clamps, key clamp fittings, handrail tubes, and associated hardware. Products are sold as components for modular assembly by customers.
2. GRP/FRP Products: Sale of Glass Reinforced Polymer/FRP handrail fittings and tube for demanding applications in railways, substations, and chemical environments.
3. Finished Systems and Barriers: Sale of pre-configured systems including pedestrian barriers, crash barriers, modular handrail kits, and safety gates.
4. Powder Coating Services: Custom powder coating service applied over galvanising in customer-specified RAL or BS colours for aesthetic or functional requirements.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Interclamp manufactures and distributes modular tube clamp and key clamp handrail fittings designed for easy, simple, and fast erection of rigid structures by hand with minimum tools (no welding required). The core product range features hot-dipped galvanised steel components with a double coating for enhanced corrosion protection, with complementary GRP/FRP alternatives for demanding electrical, chemical, or fire-resistant environments. Products are available ex-stock for rapid delivery through direct sales and a global approved distributor network.

Product overview

Interclamp is a modular handrail and safety barrier hardware manufacturer offering a comprehensive portfolio of tube clamp and key clamp fittings, handrail systems, and safety barriers. The core product line includes Interclamp Fittings (galvanised tube clamps in standard, DDA Assist, and self-colour variants), Handrail Tube in various lengths, and four distinct Handrail System series (4000, 5000, 6000, and 8000). The portfolio extends to complementary safety products including Pedestrian Barriers, Self Closing Safety Gates, Crash Barriers, Mesh Panels, and Steel Palisade Fencing. Specialised ranges include GRP (Glass Reinforced Plastic) products for electrical and chemical environments, and Retail Systems for shop fitting applications. Supporting services include Powder Coating (custom colour finishing), Tube Cutting, and Project Support. All products feature hot-dipped galvanisation with double coating as standard, require only simple hex key assembly without welding, and are designed for rapid on-site installation.

Differentiator

Problem solved

Functional benefit

Products and services

• Interclamp Fittings

Quantifiable outcome

• No welding required - only simple hex key needed for assembly
• +1 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves11 records

Expansion highlights6 records

Broad incumbents

• Tata Steel: Tata Steel is one of the world's largest steel manufacturers with significant European operations producing tubes and structural products. It is an upstream supplier peer whose tubes overlap with Interclamp's handrail tube range.
• Voestalpine: Voestalpine is a major European steel manufacturer producing sections, tubes, and special-quality steel. It competes with Interclamp at the upstream steel and tube supply layer and serves overlapping construction and infrastructure end markets.
• GF Piping Systems (Georg Fischer): GF Piping Systems is a global manufacturer of plastic and metal piping systems, fittings, and valves for industrial and utility applications. It overlaps with Interclamp on pipe fittings and connectors but focuses on pressure-bearing fluid systems rather than handrail structures.
• ASSA ABLOY: ASSA ABLOY is the global leader in access solutions and entrance automation, with overlapping presence in safety gates, perimeter security, and barrier systems. It does not specialise in modular tube clamps but competes in adjacent safety/access categories.
• Hill & Smith Holdings: Hill & Smith is a UK-listed infrastructure products group with divisions in road safety barriers, fencing, and engineered solutions. It competes with Interclamp in roadside crash barriers, pedestrian segregation, and infrastructure handrails, but across a much broader portfolio.

Direct peers

• Kee Safety (Kee Klamp): Kee Safety is the original inventor and global leader of the modular tube clamp / key clamp handrail fitting system, making Kee Klamp the most direct competitor to Interclamp in the same product category, serving identical safety handrail and barrier applications.

Regional players

• Brett Martin Plumbing & Drainage: Brett Martin is a UK and Ireland-based manufacturer of plastic and composite building products, including drainage and roofing systems. It is comparable to Interclamp as a regional building products manufacturer serving UK construction with related safety/structural components.

Others

• Ringfeder Power Transmission: Ringfeder manufactures industrial fasteners, locking elements, and power transmission components. It is an adjacent peer sharing Interclamp's mechanical fastener category but serving different industrial applications.
• Forterra: Forterra is a UK-listed manufacturer of building products including bricks, blocks, and precast concrete. It is comparable as a UK construction products supplier serving similar infrastructure and public-access end markets, though in a different product category.
• Troax Group: Troax is a European manufacturer of mesh panel safety barriers and storage systems for industrial and commercial use. It overlaps with Interclamp on mesh panel safety barriers and pedestrian segregation but uses welded mesh rather than modular tube clamps.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights5 records

Customer concentration

• Xx.com/interclamp
• YouTubeyoutube.com/c/Interclamp
• Facebookfacebook.com/Interclamp
• LinkedInlinkedin.com/company/interclamp
• Instagraminstagram.com/Interclamp

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 Interclamp