What JGM does

JGM, trading as John G Mackintosh Ltd (Company Number SC281061), is a privately held Scottish building services contractor founded in 1907 and headquartered in Loanhead (Edinburgh) with a second regional office in Perth. The company delivers mechanical and electrical (M&E) contracting services — including electrical installation, mechanical systems (HVAC, plumbing, public health), fire detection and security systems, structured data cabling, and facilities management — across seven primary verticals: banking, commercial, education, health, hospitality, retail, and sport & leisure. Named clients include NHS Lothian, NHS Forth Valley, NHS Dundee, Royal Bank of Scotland, Radisson Blu, Ernst & Young, Heriot-Watt University, House of Fraser/Jenners, Leonardo, Scottish Power, and Scottish Water.

The underlying technology stack is conventional for the construction services sector: JGM uses BIM and CAD for design coordination, with AutoCAD and Revit for drawing production. There are no proprietary software platforms, no API products, and no AI/ML capabilities disclosed. The service offering is delivered as a unified M&E capability rather than a modular software-plus-services architecture, with four operational divisions: Electrical & IT Services, Mechanical Services, Facilities Management, and a specialist Fire & Security sub-brand.

JGM's business model is sales-led and project-based: the company secures work through competitive tendering and direct client engagement, operating as either a specialist M&E subcontractor or, on occasion, a principal contractor. Revenue is earned through installation, refurbishment, and maintenance contracts, with disclosed project values ranging from £271k (six-month banking hall fit-out) to £2.5M (12-month hotel refurbishment). Pricing is not publicly disclosed and is determined per project through tender submission. The go-to-market relies on case-study-driven content marketing, an active LinkedIn/Instagram/Facebook presence, and long-tenured relationships — exemplified by a 42+ year continuous service relationship with House of Fraser/Jenners since 1973. JGM holds an extensive portfolio of UK construction accreditations (ISO 9001/14001/45001, Constructionline Gold, NICEIC, Gas Safe, BAFE, SELECT, SNIPEF, SSAIB, Achilles, Acclaim SSIP, SafeContractor, MCS, Living Wage Employer) that function as pre-qualification for tendered work.

Name

JGM

Legal name

John G Mackintosh Ltd

Website

https://jgm.co.uk

Company type

Private

Founded year

1907

Operating status

Operating

Short description

JGM (John G Mackintosh Ltd) is a 115+ year-old Scottish M&E building services contractor delivering electrical, mechanical, fire & security, and facilities management services to commercial, healthcare, education, hospitality, banking, retail, and sport & leisure clients across Scotland.

Ownership category

akta.pro rank

Product category

Building Services (Mechanical & Electrical Contracting)

NAICS

Electrical Contractors and Other Wiring Installation Contractors (23821), Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

Keywords

• Building services contracting
• Mechanical and electrical services
• HVAC installation
• Facilities management services
• Fire and security systems

Headquarters

HQ city

Loanhead

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Project-Based M&E Services: JGM generates revenue through competitive tendering for construction projects, delivering electrical and mechanical building services as either specialist subcontractor or principal contractor. Revenue is project-based and earned through installation, refurbishment, and maintenance contracts across commercial, healthcare, education, hospitality, and other sectors.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

JGM is a Scottish building services contractor that delivers integrated mechanical and electrical (M&E) services for commercial, healthcare, education, banking, hospitality, retail, and sport & leisure clients. The company works as both a specialist M&E subcontractor and a principal contractor on projects ranging from small fit-outs to large-scale new builds, with ongoing facilities management and fire & security services delivered through a dedicated JGM Fire & Security division.

Product overview

JGM (John G Mackintosh Ltd) is a building services contractor providing integrated mechanical and electrical services across Scotland. The company operates as a single unified service offering rather than a platform-plus-modules architecture. Their core portfolio consists of four main service areas: Electrical and Information Technology Services (including structured cabling and network solutions), Mechanical Services (HVAC, plumbing, building management systems), Facilities Management (maintenance and testing services), and Fire & Security (fire alarms, CCTV, access control). These services are delivered across diverse sectors including banking, sport & leisure, commercial, education, health, hospitality, and retail. The company has over 115 years of experience and operates from offices in Edinburgh and Perth.

Differentiator

Problem solved

Functional benefit

Brands

• JGM Fire & Security: A specialist division of JGM providing fire alarm, intruder alarm, CCTV, and security systems installation and monitoring services.

Products and services

• Electrical and Information Technology Services Core electrical installation services including power distribution, lighting, containment, and structured data cabling solutions, delivered for commercial, healthcare, education, and hospitality clients across Scotland.
• Mechanical Services Complete mechanical contracting including heating, ventilation, air conditioning (HVAC), plumbing, public health systems, and building management system integration for commercial and institutional buildings.
• Facilities Management Building services maintenance including planned preventive maintenance, testing and inspection, reactive maintenance, emergency lighting, air conditioning and boiler maintenance, and water sampling and chlorination.
• Fire & Security Fire detection and alarm systems, intruder alarms, CCTV surveillance, access control, and emergency voice communication systems for commercial buildings, delivered through the JGM Fire & Security specialist division.

Named customers31 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• Pick Everard: UK building services and M&E design consultancy with contracting capability across healthcare, education, and commercial sectors — a comparable mid-market peer to JGM though with a stronger design-led orientation.

Broad incumbents

• Imtech (Imtech Building Services): UK M&E contractor (formerly Imtech, now under EDF/Equans ownership) delivering mechanical, electrical, and building services — competes in the same commercial, healthcare, and education tenders as JGM.
• MITIE Engineering Services: Major UK facilities management and engineering services provider with significant M&E contracting capability — overlaps with JGM in building services installation and FM, but at much larger scale with national framework contracts.
• SPIE UK: UK subsidiary of European technical services group SPIE, providing electrical, mechanical, HVAC, and fire & security services — directly overlapping with JGM's four service pillars but operating across the UK with greater scale.
• Crown House Technologies (Laing O'Rourke): M&E and building services arm of Laing O'Rourke, one of the UK's largest privately owned construction groups — competes for the same large-scale M&E tenders as JGM but with substantially greater financial firepower and a UK-wide footprint.

Regional players

• Walker Group (Walker Modular): Scotland-based building services and modular construction firm delivering M&E installations — comparable in regional scope to JGM with similar customer profiles in commercial, education, and healthcare.
• H&J Martin (Part of Lagan M&E): Northern Ireland-based M&E and facilities services contractor with UK reach — comparable mid-tier building services peer to JGM operating across adjacent UK regions.

Direct peers

• McGill Group: Scotland-based construction and building services group delivering M&E, construction, and FM — a closer-size regional competitor to JGM with overlapping geographic footprint and customer base.
• FES Group: Scotland-headquartered building services contractor delivering mechanical, electrical, and facilities management services — a direct regional competitor to JGM with overlapping customer base in NHS Scotland, education, and commercial sectors.
• NG Bailey: UK's largest independent M&E and building services contractor delivering electrical, mechanical, and integrated building services across commercial, public, and infrastructure sectors — directly comparable in service offering to JGM, though operating at substantially greater national scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/johngmackintosh
• LinkedInlinkedin.com/company/johngmackintosh
• Instagraminstagram.com/johngmackintosh

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 JGM