JNR

What JNR does

JNR Fire Protection Specialists Ltd is a UK-based, family-owned provider of passive fire protection services, headquartered in Birmingham with five additional regional offices in London, Manchester, Coventry, Leicester, and Nottingham. The company supplies, installs, and maintains fire-rated compartmentation systems for commercial, residential, educational, healthcare, and public sector buildings, with a core portfolio spanning FD30 and FD60 fire doors, fire and cavity barriers, penetration sealing (intumescent sealants, pipe wraps, collars, fire pillows), fire boarding, intumescent paint for structural steel, fire curtains, and fire blankets. Its services are supported by FIRAS, CHAS, Constructionline, and Builders Profile accreditations, which serve as gating credentials for tier-1 UK construction and public sector tenders.

Underlying work is trade-based: certified installers physically deploy third-party-manufactured fire protection products on site, then verify compartmentation integrity against Approved Document B and British Standards (BS476). Technology differentiation is therefore product- and certification-driven rather than software-driven, with quantifiable performance claims tied to fire-resistance ratings (30-120 minutes) and intumescent expansion thresholds (above 120°C).

JNR earns revenue through two principal streams: project-based installation fees (fire doors, barriers, penetration sealing, fire boarding, intumescent coatings) sourced primarily via direct enterprise field sales to main contractors, architects, building inspectors, and property owners; and recurring inspection and maintenance contracts on fire doors and compartmentation systems, typically run on 6-12 month cycles. Pricing is quote-based per project with no public list rates. Customers include major UK contractors (Balfour Beatty, Galliford Try, Bowmer & Kirkland, Wates, BAM, United Living, Bouygues, Seddons), local authorities (Birmingham, Liverpool, Stoke city councils), the NHS, the Ministry of Defence, education and student accommodation providers, and sport venues such as Stoke City Football Club. Marketing is led by city-specific landing pages, published case studies, and an educational blog targeting facility managers and property owners.

Name

JNR

Legal name

JNR Fire Protection Specialists Ltd

Website

https://jnrlimited.co.uk

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

51–100 employees

Short description

JNR Fire Protection Specialists Ltd is a family-owned UK passive fire protection services company that installs and maintains fire doors, barriers, penetration seals, boarding, and intumescent coatings for commercial, residential, public sector, and construction clients across six UK regional offices.

Ownership category

akta.pro rank

Product category

Fire Protection Services

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro industry

PRIMARYIMAIAJAJ

Fire Door, Firestop & Passive Fire Protection Inspection/Installation

Industrials, Manufacturing & Construction/Industrial Services & Facility Operations/Fire Protection & Life Safety Services (Inspection/Testing/Sprinklers)

SECONDARYBPABAHAE

Fire & Smoke Dampers / Firestopping / Passive Fire Protection Services

Business & Public Services/Facilities Management & Building Services/Fire, Life Safety & Building Compliance Services

SECONDARYIMAFALAD

Fire Protection Systems Contracting (Sprinklers, Alarms, Suppression)

Industrials, Manufacturing & Construction/Construction & Civil Engineering/Specialty Trade Contractors (MEP, HVAC, Plumbing, Electrical)

SECONDARYIMAIAAAI

Fire & Life Safety Services (Inspection/Testing/Sprinklers/Alarms)

Industrials, Manufacturing & Construction/Industrial Services & Facility Operations/Facilities Management (Integrated FM)

Keywords

• Passive fire protection
• Fire door installation
• Penetration sealing
• Fire stopping services
• Fire compartmentation

Headquarters

HQ city

Birmingham

HQ country

United Kingdom

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Fire Protection Installation Services: Project-based fire protection installation including fire doors, barriers, penetration sealing, and fire boarding for commercial and residential buildings. Revenue generated through one-time project fees.
2. Fire Door Maintenance and Inspection: Ongoing maintenance and inspection services for fire doors and other fire protection systems, including 6-12 month inspection cycles.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

JNR is a UK-based family-owned fire protection company that supplies, installs, and maintains passive fire protection systems for commercial and residential buildings. Its core offerings include FD30/FD60 fire-rated doors, fire barriers and cavity barriers, penetration sealing systems, fire boarding, intumescent paint coatings, and fire compartmentation surveys. The company serves enterprise clients through project-based engagements and ongoing maintenance contracts across six UK regional offices.

Product overview

JNR offers a comprehensive suite of passive fire protection services and products. The core portfolio centres on four principal offerings: Fire Doors (FD30 and FD60 ratings), Fire Barriers, Penetration Sealing, and Fire Boarding. These are complemented by add-on protective products including Intumescent Paint for structural steel protection, Fire Curtains for void protection, Cavity Barriers for concealed spaces, and Fire Blankets. JNR also provides specialist services encompassing Fire Compartmentation Surveys and Fire Door Inspection & Maintenance. The company operates as a physical installation and service business rather than a software platform, serving commercial, residential, and industrial clients across six UK locations (Birmingham, Manchester, London, Coventry, Leicester, Nottingham) through a combination of supply, installation, and ongoing maintenance contracts.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Fire doors provide 30-60 minutes of fire resistance allowing time for evacuation
• +1 more outcomes

Named customers17 records

Segments5 records

Ideal customer profiles3 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 moves6 records

Expansion highlights5 records

Broad incumbents

• Rockwool: Global manufacturer of stone wool insulation including fire-barrier products used in passive fire protection. A key upstream supplier to JNR and adjacent competitor at the product-specification layer rather than pure installation.
• PTSG (Premier Technical Services Group): Larger UK specialist services group with a dedicated fire-protection division covering installation, inspection, and remediation. Broader portfolio than JNR but operates in the same passive fire protection market with similar enterprise and public-sector customers.
• Promat: Manufacturer of passive fire protection boards, sprays, and systems used in commercial construction. Comparable technology and product mix to JNR's fire boarding and barriers range; broad incumbent rather than regional installer.
• Nullifire: Specialist manufacturer of intumescent coatings and fire-stopping products. Comparable technology base to JNR's intumescent paint and penetration-sealing ranges; a product manufacturer rather than installation contractor.

Direct peers

• CLM Fireproofing: UK specialist contractor delivering fire protection, firestopping, and intumescent coatings to commercial and residential construction projects. Directly comparable service offering and customer profile to JNR.
• FSi (Fire Security Installations): UK manufacturer and installer of firestopping and passive fire protection products. Closely comparable product portfolio (fire-stop sealants, collars, boards) and overlapping installer-customer base with JNR.
• Invictus Fire Protection: UK-based passive fire protection installer specialising in fire doors, fire stopping, and compartmentation. Direct competitor with comparable service mix and enterprise customer base.
• Fire-Pro Solutions: UK passive fire protection contractor providing fire doors, compartmentation, firestopping, and fire risk assessments. Closely comparable mid-sized independent operating across similar commercial and public-sector projects.
• Trafalgar Fire Compliance: UK-based passive fire protection contractor offering firestopping, fire doors, fire barriers, and compartmentation surveys. Direct head-to-head competitor in the same product categories, customer segments, and UK geographies as JNR.

Emerging players

• Hilti: Global construction tools and firestop systems provider with growing penetration-sealing product line and installer services in the UK. Comparable product category with broader geographic reach and deeper R&D budget than JNR.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/jnr-limited

Compliance4 records

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 JNR