FG Wilson
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.
- Company typePrivate
- Founded1972
- HeadquartersAntrim, United Kingdom
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
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.
FG Wilson firmographics
Firmographics- 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
FG Wilson industry classification
Industry- 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
Where FG Wilson is headquartered
LocationHeadquarters
- HQ city
- Antrim
- HQ country
- United Kingdom
- HQ region
- Europe
Offices4 records
Markets served
FG Wilson business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- 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.
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | MSRP-based pricing with dealer-controlled final pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
FG Wilson product offering
Product offeringCore 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
Companies that use FG Wilson
Customer profileSegments8 records
Ideal customer profiles5 records
FG Wilson technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration9 records
Feature7 records
FG Wilson partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core, secondary and flagship.
- Perkins (Caterpillar subsidiary)corePerkins 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 SomercoreLeroy 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.
- MarellisecondaryMarelli 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 ElectronicscoreDeepSea 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.
- ComApsecondaryComAp InteliLite MRS 16, InteliGen 200, and InteliVision 5 controllers offered on PRO rental range products. Controllers support remote monitoring and synchronization capabilities.
- DEIFsecondaryDEIF AGC-4 controller available on PRO rental range. Supports backup power, start/stop, synchronization, and load sharing with Modbus and Profibus communication protocols.
- easYgencoreeasYgen 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)flagshipFG 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
FG Wilson competitors and assessment
Company assessmentBroad 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
FG Wilson social profiles
Digital presenceFG Wilson compliance and trust
Trust signalCompliance5 records
FG Wilson financial estimates
Financial estimateRevenue estimate
Valuation estimate
FG Wilson leadership team
Management profileNumber of profiles
Profiles1 record
FG Wilson funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
FG Wilson M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about FG Wilson
What does FG Wilson do?
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.
Is FG Wilson a public or private company?
FG Wilson is a private company. It is classified as corporate owned and is currently operating.
When was FG Wilson founded?
FG Wilson was founded in 1972. It employs 501 to 1,000 people.
Where is FG Wilson based?
FG Wilson is headquartered in Antrim, United Kingdom, in the Europe region.
How does FG Wilson make money?
Three revenue lines are on record. Diesel Generator Sales are the primary driver. The others are genuine Parts & Aftersales and generator Control Systems.
Who are FG Wilson's main competitors?
Broad incumbents on record are Caterpillar Inc., Wärtsilä Energy and Mitsubishi Power. Direct peers are Cummins Inc., MTU Rolls-Royce Power Systems (Rolls-Royce), Kohler Power Systems, Generac Power Systems and Atlas Copco Power & Flow. Emerging players are Aksa Power Generation and Himoinsa.
Does FG Wilson have an API?
No public API is recorded for FG Wilson.
What industry is FG Wilson in?
FG Wilson's product category is Diesel Power Generation Equipment. Its primary akta.pro industry code is IMAHAFAC, Reciprocating Engine Generator Sets (Diesel/Gas/HFO), with a secondary code of EUACACAH, Emergency & Standby Diesel Generator Power (Critical Facilities). Its NAICS code is 3336 and its SIC code is 3510.