FG Wilson

What FG Wilson does

FG Wilson, operated as Caterpillar (NI) Ltd, designs and manufactures diesel generator sets ranging from 6.8 kVA to 2,500 kVA across five product ranges: Small Range (<220 kVA), Medium Range (225-938 kVA), Large Range (>800 kVA), India Range, and PRO Rental Range. The generators are built around Perkins engines (a Caterpillar subsidiary) with alternators from Leroy Somer and Marelli, and are paired with the proprietary FG100 and PowerWizard digital control panels alongside third-party controllers from DeepSea, easYgen, DEIF, and ComAp. Manufacturing is conducted in four countries — Northern Ireland (headquarters), Brazil, China, and India — with EU Stage IIIA emissions compliance certified across multiple engine families. The product line targets standby and prime power applications for telecommunications, data centers, healthcare, manufacturing, agriculture, commercial, rental, and utility customers, including 50°C high-ambient packages and super-silent enclosures rated as low as 57 dBA at 7 metres.

The company sells exclusively through a global network of 110+ authorized Cat dealers rather than direct e-commerce; dealers set final pricing and provide installation, parts, and after-sales service under MSRP guidance from the manufacturer. Aftersales revenue is captured through genuine parts identification (covering 3,500+ SKUs for units sold since 2008) at my.fgwilson.com, maintenance service plans branded FG Wilson Protect, overhaul kits, and warranty support routed through dealer service centres. Telematics-ready capability and Rainbow SCADA software allow remote monitoring of installed generator sets across the FG100 platform, with the FG Wilson Power Centre providing online customer-facing sizing and configuration.

FG Wilson's customer base spans industrial verticals that demand high uptime — telecom towers, hyperscale and colocation data centres, hospitals, manufacturing plants, agricultural operations, and rental fleets for events and construction — and its competitive position rests on the combination of Caterpillar capital, Perkins engine integration, multi-region manufacturing, and the Cat dealer aftermarket footprint rather than on direct-to-customer sales motion.

Name

FG Wilson

Legal name

Caterpillar (NI) Ltd

Website

https://fgwilson.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

501–1,000 employees

Short description

FG Wilson manufactures diesel generator sets from 6.8 to 2,500 kVA across five product ranges, serving telecommunications, data centres, healthcare, manufacturing, and utility customers globally via 110+ Cat dealers and manufacturing facilities in Northern Ireland, Brazil, China, and India.

Ownership category

akta.pro rank

Product category

Diesel Power Generation Equipment

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Turbine and Turbine Generator Set Units Manufacturing (333611), Engine, Turbine, and Power Transmission Equipment Manufacturing (33361)

SIC

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

akta.pro primary industry

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

akta.pro secondary industries

Emergency & Standby Diesel Generator Power (Critical Facilities) (EUACACAH), Diesel Engine Power Plants (Medium/High-Speed Reciprocating) (EUACACAB), Dispatchable Distributed Generation (Gas Reciprocating Engines, Microturbines) (EUACALAI), Powertrain, Engine & Drivetrain Parts Distribution (New/Reman) (TLAKAOAE)

Keywords

• Diesel generator manufacturing
• Power generation equipment
• Standby power systems
• Industrial genset production
• Generator control panels

Headquarters

HQ city

Antrim

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Diesel Generator Sales: FG Wilson generates primary revenue through the sale of diesel generator sets across five product ranges: Small Range (6.8-220 kVA), Medium Range (225-938 kVA), Large Range (800-2500 kVA), India Range, and Rental Range. Products are sold through authorized Cat dealers with MSRP guidance provided by manufacturer.
2. Genuine Parts & Aftersales: Revenue generated from genuine FG Wilson parts, maintenance services, overhaul kits, and support packages including FG Wilson Protect service plans. Online parts identification tool enables customers to find and purchase parts by generator serial number.
3. Generator Control Systems: Sale of proprietary and third-party control panels including FG100, PowerWizard, DeepSea, easYgen, DEIF, and ComAp controllers for generator monitoring and control.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

FG Wilson manufactures Perkins-powered diesel generator sets ranging from 6.8 kVA to 2,500 kVA, organised into five ranges (Small <220 kVA, Medium 225-938 kVA, Large >800 kVA, India, and Rental/PRO). The company sells its sets exclusively through a global network of more than 110 authorized Cat dealers, complemented by proprietary FG100 and PowerWizard digital control panels, third-party controllers, telematics-ready remote monitoring, and an online parts identification platform for genuine aftersales parts and service support.

Product overview

FG Wilson is a diesel generator manufacturer offering a comprehensive portfolio of power generation solutions ranging from 6.8 to 2,500 kVA. The product lineup is organized into five distinct ranges: Small Range (<220 kVA) for small-scale applications; Medium Range (225–938 kVA) for commercial and industrial use; Large Range (>800 kVA) for critical infrastructure like data centres and hospitals; India Range for regional market requirements; and Rental Range (PRO Series) for temporary power needs. The company also provides comprehensive generator control panel solutions integrating third-party systems (DeepSea, PowerWizard, easYgen, DEIF, ComAp) alongside its own FG100 platform, supported by a global dealer network spanning over 110 locations worldwide. Manufacturing facilities are located in Northern Ireland (headquarters), Brazil, China, and India.

Differentiator

Problem solved

Functional benefit

Products and services

• Small Range Diesel Generators (<220 kVA) Diesel generator sets from 6.8 to 220 kVA, designed for prime and standby applications across small manufacturing, residential, agriculture, and telecoms sites, available in 50 Hz and 60 Hz variants.
• Medium Range Diesel Generators (225–938 kVA) Diesel generator sets from 225 to 938 kVA for medium-scale industrial and commercial applications, offering prime and standby models at 50 Hz and 60 Hz frequencies.
• Large Range Diesel Generators (>800 kVA) High-capacity diesel generator sets from 800 to 2,500 kVA for critical applications including data centres, airports, hospitals, and mini power stations, with 50°C package option and custom enclosure capabilities.
• India Range Diesel Generators Diesel generator sets specifically configured for the Indian market, including models FB40-4A through FB250-4A covering various regional power requirements.
• Rental Range Diesel Generators (PRO Series) Rental-focused diesel generators from 20 to 550 kVA designed for temporary power applications, built to withstand frequent transportation and rapid deployment, with DEIF and ComAp control options.
• Generator Control Panels (FG100, PowerWizard, and Third-Party) Comprehensive range of generator control systems spanning basic auto-start to complex paralleling controllers, including FG100, PowerWizard, DeepSea, easYgen, DEIF, and ComAp platforms for monitoring, protection, paralleling, and remote management of generator sets.
• Genuine Parts and Aftermarket Support Online parts identification system offering access to 3,500+ parts for generators sold since 2008, along with maintenance, warranty, FG Wilson Protect service plans, and dealer-backed service support.

Quantifiable outcome

• Sound levels as low as 57 dBA at 7m with super silent enclosures
• +2 more outcomes

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

Feature7 records

Partnerships

Eight partnerships are on record, tiered core, secondary and flagship.

• Perkins (Caterpillar subsidiary)coreTechnology or IntegrationPerkins engines are the standard powerplant across all FG Wilson generator ranges including 400 Series, 1100 Series, 1500 Series, 2000 Series, and 4000 Series engines. This is a core component partnership with engines designed and validated specifically for FG Wilson generator sets.
• Leroy SomercoreTechnology or IntegrationLeroy Somer alternators offered as standard or optional upgrade across FG Wilson product ranges. Known for 100 years of expertise in alternator technology providing long-life products with low maintenance for power generation applications.
• MarellisecondaryTechnology or IntegrationMarelli alternators offered as standard on certain medium range models (e.g., P249-5) providing power generation expertise alongside FG Wilson and Leroy Somer options.
• DeepSea ElectronicscoreTechnology or IntegrationDeepSea DSE4520 and DSE7000 series (DSE7410, DSE7420) control modules offered as optional equipment. Compact to sophisticated remote start/auto mains failure control modules with comprehensive engine and alternator protection.
• ComApsecondaryTechnology or IntegrationComAp InteliLite MRS 16, InteliGen 200, and InteliVision 5 controllers offered on PRO rental range products. Controllers support remote monitoring and synchronization capabilities.
• DEIFsecondaryTechnology or IntegrationDEIF AGC-4 controller available on PRO rental range. Supports backup power, start/stop, synchronization, and load sharing with Modbus and Profibus communication protocols.
• easYgencoreTechnology or IntegrationeasYgen 2500 (up to 16 generator sets) and easYgen 3200 (up to 32 generator sets) controllers for set-to-set paralleling and load sharing applications with enhanced load-dependent start/stop functionality.
• Caterpillar (Parent Company)flagshipStrategic or Co-development PartnerFG Wilson is a subsidiary of Caterpillar (NI) Ltd. Manufacturing facilities utilize Caterpillar production methods and quality standards. Products sold through Cat dealer network. Perkins engines are Caterpillar subsidiary products.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Caterpillar Inc. FG Wilson's parent company and the broader Cat-branded genset competitor. Caterpillar sells large diesel and gas generator sets through the same Cat dealer network, making it both owner and direct competitor in the larger kVA tiers.
• Wärtsilä Energy: Broad incumbent in power generation, primarily large utility-scale engine and dual-fuel plants. Competes with FG Wilson's Large Range for utility, mini power station, and grid-support installations, while also leading in future-fuel transition.
• Mitsubishi Power: Broad incumbent in large-scale power generation, including gas turbines and increasingly hydrogen-ready systems. Overlaps with FG Wilson's Large Range for utility and large industrial prime/backup power customers.

Direct peers

• Cummins Inc. Closest direct peer — Cummins designs and manufactures diesel and gas generator sets across a comparable kVA range using in-house engines and alternators, and sells through a global distributor/dealer network serving telecom, data center, healthcare, and industrial backup power customers.
• MTU Rolls-Royce Power Systems (Rolls-Royce): Direct peer in the mid- to large-kVA diesel and gas genset market, with strong positions in data centers, healthcare, and industrial prime power. Competes head-to-head with FG Wilson's Medium and Large Ranges via similar dealer/service models.
• Kohler Power Systems: Direct peer offering diesel and gas generator sets across small, medium, and large kVA tiers, plus switchgear and paralleling controllers — overlapping significantly with FG Wilson's full product lineup and customer verticals.
• Generac Power Systems: Major North American–anchored direct peer in standby and prime power generation; particularly strong in commercial/industrial backup gensets, competing with FG Wilson's Small and Medium ranges for similar end customers.
• Atlas Copco Power & Flow: Strong direct peer in the diesel and electric mobile/rental generator segment. The PRO Rental Range at FG Wilson overlaps directly with Atlas Copco's portable and rental genset offerings for construction, events, and temporary power.

Emerging players

• Aksa Power Generation: Emerging global player headquartered in Turkey, manufacturing diesel gensets across a wide kVA range and exporting competitively. Competes with FG Wilson's Small and Medium ranges, particularly in EMEA and emerging markets.
• Himoinsa: Emerging player (part of the Yanmar group) with strong mobile and rental-focused generator offerings. Overlaps directly with FG Wilson's Rental Range and competes in industrial/construction temporary-power channels.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/FGWilsonGenerators
• Facebookfacebook.com/fgwilsongeneratorsets
• LinkedInlinkedin.com/company/fg-wilson
• Xx.com/FGWilson

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 FG Wilson