What AJ Power does

AJ Power Ltd is a privately-held UK manufacturer of diesel generating sets, headquartered in Craigavon, Northern Ireland, founded in 2003. The company designs, assembles, and tests a comprehensive product portfolio spanning four series: the compact 3 Series (10-110kVA), mid-range 5 Series (33-330kVA), heavy-duty 7 Series (280-770kVA), and large-scale 9 Series (800-2800kVA), covering the full low- and high-voltage (3.3-13.8kV) industrial standby and prime power envelope. Generating sets integrate engines sourced from Perkins, Hyundai, Mitsubishi, and Scania with alternators from Mecc Alte and Newage Stamford, paired with AJ Power's proprietary InSight digital control platform (3100-6400S panel range) and complementary offerings including acoustic enclosures, battery energy storage, and a generator rental fleet.

The business runs a sales-led B2B go-to-market targeting 12 end-markets: data centres, healthcare, telecommunications, mining, oil and gas, industrial, commercial, utilities, agriculture, construction, hospitality, and pharmaceutical. Pricing is quote-based with no public list rates, and revenue is generated primarily through hardware sales to enterprise and infrastructure customers via direct sales and a global distributor network covering more than 100 countries. The company holds ISO 9001, 14001, and 45001 certifications, has received the King's Award for Enterprise, and operates an aftersales service line covering genuine parts, maintenance, commissioning, training, and technical support, which functions as a recurring revenue and switching-cost layer around the installed base. Over 40,000 units have been delivered worldwide and £20m of stock is held for fast delivery.

Financially the company is opaque, with no disclosed revenue, headcount trend, funding history, or ownership structure beyond private limited status in the United Kingdom and 101-250 employees. The expansion of distribution into emerging markets across Africa, the Middle East, the Caribbean, and Oceania, alongside the recent launch of a Battery Energy Storage line and an online Generator Finder tool, signals incremental product and geographic broadening within a fundamentally mature industrial equipment franchise.

Name

AJ Power

Legal name

AJ Power Ltd

Website

https://ajpower.net

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

101–250 employees

Short description

AJ Power Ltd is a UK-based, privately-held manufacturer of diesel generating sets (10kVA-2800kVA) sold primarily to enterprise and infrastructure customers in data centres, healthcare, telecoms, mining, oil and gas, and utilities across more than 100 countries through a global distributor network.

Ownership category

akta.pro rank

Product category

Diesel Generator Manufacturing

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Motor and Generator Manufacturing (335312)

SIC

Engines & Turbines (3510), Motors & Generators (3621)

akta.pro primary industry

Reciprocating Engine Generator Sets (Diesel/Gas/HFO) (IMAHAFAC)

akta.pro secondary industries

Diesel Engine Power Plants (Medium/High-Speed Reciprocating) (EUACACAB), Emergency & Standby Diesel Generator Power (Critical Facilities) (EUACACAH)

Keywords

• Diesel generators
• Power generation
• Standby power
• Industrial generators
• Generator manufacturing

Headquarters

HQ city

Craigavon

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Diesel Generator Sales: AJ Power designs, manufactures, and sells diesel generating sets across four product series (3, 5, 7, and 9 Series) with power ranges from 10kVA to 2800kVA. The company sells directly to customers and through a global distributor network.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

AJ Power designs, manufactures, and sells diesel generating sets from 10kVA to 2800kVA across four product series (3, 5, 7, and 9 Series), using engines from Perkins, Hyundai, Mitsubishi, and Scania and alternators from Mecc Alte and Newage Stamford. The company complements generators with acoustic enclosures, InSight digital control systems, battery energy storage, rental fleet, and comprehensive aftersales services (parts, maintenance, commissioning, training, technical support), distributing globally through a distributor network spanning 100+ countries.

Product overview

AJ Power is a UK-based manufacturer of diesel generating sets offering a comprehensive portfolio of power solutions across four core generator series: the compact 3 Series (10-110kVA), versatile 5 Series (33-330kVA), heavy-duty 7 Series (280-770kVA), and large-scale 9 Series (800-2800kVA). The product line includes complementary accessories and add-ons such as acoustic enclosures (containers and canopies), digital control systems (InSight panel range), battery energy storage, and diesel generator rental services. All generating sets feature components from established manufacturers including Perkins, Scania, Mitsubishi, and Hyundai engines, and Mecc Alte and Stamford alternators. The company provides comprehensive aftersales support including genuine parts, maintenance, commissioning, training, and technical services.

Differentiator

Problem solved

Functional benefit

Products and services

• 3 Series Diesel Generator Compact diesel generating set range delivering 10kVA to 110kVA, designed for space-constrained applications, built with Perkins engines and Mecc Alte alternators. Targeted at smaller commercial, telecom, and standby applications.
• 5 Series Diesel Generator Mid-range diesel generating set delivering 33kVA to 330kVA with options for Perkins, Hyundai, or AGCO engines. Suited to commercial, healthcare, light industrial and mid-size standby applications.
• 7 Series Diesel Generator Heavy-duty diesel generating set range from 280kVA to 770kVA, equipped with Scania engines for demanding industrial and mining applications.
• 9 Series Diesel Generator Largest-capacity diesel generating set range from 800kVA to 2800kVA, offered in low and high voltage (3.3-13.8kV) configurations, with Perkins, Mitsubishi, or Hyundai engines. Targeted at data centres, utilities, and large industrial operations.
• Acoustic Enclosures Weather protective and sound attenuated enclosures manufactured from pre-treated galvanised steel with polyester powder coating, featuring low velocity airflow design. Available as containers (10ft, 20ft, 40ft, custom) or canopies for noise-sensitive and harsh environment sites.
• InSight Digital Control Systems Range of digital control panels (InSight 3100, 3300, 4100, 5200, 6000S, 6400S) providing flexibility and optimised genset efficiency, with capabilities from basic automatic control to auto-synchronising multiple generating sets with mains power.
• Battery Energy Storage Battery energy storage solutions offered as a complementary product line to pair with diesel generators for hybrid power generation.
• Diesel Generator Rental Rental fleet of diesel generators available for short-term or long-term hire, supplying temporary power for events, construction, outages, and project sites.
• Aftersales Services Comprehensive aftersales support programme including genuine replacement parts, maintenance and repairs, commissioning, training, installation and setup, technical support, and project management for AJ Power generators and other manufacturers' products.

Quantifiable outcome

• Over 40,000 diesel generators manufactured and distributed globally
• +1 more outcomes

Segments12 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eight partnerships are on record, tiered core.

• PerkinscoreTechnology or IntegrationAJ Power uses Perkins engines across multiple generator series (3, 5, and 9 Series) ranging from entry-level to high-power applications. Perkins provides reliable diesel engine technology for power generation.
• HyundaicoreTechnology or IntegrationHyundai engines are used across 5 and 9 Series generators, offering an alternative engine option with competitive performance and fuel efficiency characteristics.
• MitsubishicoreTechnology or IntegrationMitsubishi engines power the 9 Series high-capacity generators (up to 2800kVA), providing reliable performance for data centre and industrial applications.
• ScaniacoreTechnology or IntegrationScania engines are used exclusively in the 7 Series generators (280kVA-770kVA), known for durability and reliability in demanding industrial and mining environments.
• Mecc AltecoreTechnology or IntegrationMecc Alte alternators are used across all AJ Power generator series, providing reliable electrical power generation with high efficiency and durability.
• Newage StamfordcoreTechnology or IntegrationNewage Stamford alternators are offered as an alternative option across multiple generator series, providing customers with choice in alternator specifications.
• ComAPcoreTechnology or IntegrationComAP provides digital control systems integrated into AJ Power generators, including the InSight 3300 (IL4-MRS16) and InSight 4100 (IL4-AMF25) control panels.
• WoodwardcoreTechnology or IntegrationWoodward provides advanced control systems for AJ Power generators including Easygen 3200 XT and Easygen 3500 XTP1 controllers used in auto-synchronizing applications.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• PRAMAC: Italian-headquartered generator and material-handling equipment maker with a broad diesel genset portfolio and global dealer footprint; directly comparable in mid-kVA industrial and rental segments.
• Kohler Power Systems: US-based generator OEM offering diesel and gaseous-fuel standby/prime sets with global distribution; directly comparable in standby power focus, paralleling AJ Power's data-centre and healthcare pitch.
• AKSA Power Generation: Turkish manufacturer of diesel generating sets from 1kVA to 3000kVA with global distribution — the closest mid-sized private peer to AJ Power in scope, range, and emerging-market focus.
• Generac Power Systems: Leading standby and prime power generator manufacturer with strong industrial and commercial overlap; comparable in product range and channel-led GTM though Generac skews smaller-kVA.
• Himoinsa: Spanish (Yanmar Group) generator manufacturer covering 3kVA to 3500kVA with strong presence in telecom, data centre, and rental; comparable mid-market private OEM competitor with similar global channel approach.
• Caterpillar (CAT Electric Power): Global OEM of Cat-branded diesel and gas generator sets across the full standby/prime power range; competes head-to-head with AJ Power in 10kVA-2800kVA applications across data centres, mining, oil & gas, and utilities.
• Cummins: Major global diesel generator manufacturer with the Power Generation business spanning residential to utility-scale sets; directly comparable to AJ Power's four-series portfolio and aftermarket service model.
• FG Wilson: Caterpillar-owned diesel generator specialist selling 8.1kVA-2500kVA sets globally through a dealer network; closely comparable in product architecture, channel model, and target verticals.

Broad incumbents

• Aggreko: World leader in temporary/decentralized power including diesel generator rental and BESS — competes with AJ Power's rental product line and increasingly with its hybrid power value proposition.
• Atlas Copco Power and Flow: Global industrial group with a substantial power-generation and rental business (including mobile diesel gensets); overlaps with AJ Power in portable/temporary industrial power and mining/construction segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/ajpower

Compliance3 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 AJ Power