The Generator Company
The Generator Company is a UK-based specialist provider of standby and backup diesel generator systems (10kVA to 2500kVA+), serving mission-critical facilities including NHS hospitals, financial data centres, retailers, and government clients with design, installation, maintenance, and rental services.
- Company typePrivate
- Founded-
- HeadquartersRochester, United Kingdom
- Headcount51–100
- GTM typeB2B
- OfferingServices
What The Generator Company does
The Generator Company (TGC) is a UK-based specialist provider of industrial standby and backup diesel generator systems, headquartered in Rochester, Kent with a Dover-based Powerhire rental division. The company designs, supplies, installs, commissions, and maintains diesel generator sets ranging from 10kVA to 2500kVA+ for mission-critical facilities across healthcare (NHS trusts, private hospitals), financial services (banking data centres), retail (department stores, distribution centres), hospitality, entertainment, and government sectors. Core technology centres on diesel gensets powered by MTU (Rolls-Royce), Cummins, Volvo, Perkins, and Caterpillar engines, integrated with proprietary TGC1000 paralleling control systems, ComAp, Deep Sea Electronics, and Mitsubishi PLC-based control platforms, plus associated LV/HV switchgear, fuel systems, acoustic enclosures, and cooling infrastructure.
TGC generates revenue through three primary streams: one-time capital sales of generator packages and control systems (project values ranging from £100k to multi-million-pound installations), recurring annual maintenance contracts covering 6-monthly servicing and 24-hour emergency callout, and usage-based rental income through the in-house Powerhire division providing containerised generators (500kVA to 1250kVA+) and loadbanks up to 5000kVA. The go-to-market is exclusively direct enterprise sales with dedicated project managers assigned from design through commissioning, targeting facilities managers and estates directors at end-clients, main contractors, and facilities management companies. Notable project track record includes 20+ year relationships with UK NHS trusts, large London hospital installations of 3-4x2500kVA systems, 11kV financial data centre upgrades, and complex live-environment installations at operational hospitals and data centres using temporary rental generators to maintain continuous power during upgrades.
The Generator Company firmographics
Firmographics- Name
- The Generator Company
- Legal name
- The Generator Company
- Website
- https://tgc.uk.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- The Generator Company is a UK-based specialist provider of standby and backup diesel generator systems (10kVA to 2500kVA+), serving mission-critical facilities including NHS hospitals, financial data centres, retailers, and government clients with design, installation, maintenance, and rental services.
- Ownership category
- akta.pro rank
The Generator Company industry classification
Industry- Product category
- Industrial Power Generation Equipment and Services
- NAICS
- Turbine and Turbine Generator Set Units Manufacturing (333611), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336)
- SIC
- Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613)
- akta.pro primary industry
- Backup Power & Critical Power Systems (Generators/UPS) (IMAIABAJ)
- akta.pro secondary industries
- Backup & Resilience Power Systems (Standby Generators, Critical Facilities) (EUACALAG), Industrial Power & Energy Equipment Rental/Leasing (Generators, Light Towers, Compressors) (TLABAFAG), Specialty Power Systems MRO (Generators, Compressors, Pumps, Welders) (TLAKAHAJ)
Keywords
Where The Generator Company is headquartered
LocationHeadquarters
- HQ city
- Rochester
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
The Generator Company business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Generator Sales: Sale of new standby and backup diesel generators ranging from small 10kVA units to large 2500kVA+ systems. Includes design, manufacture, delivery, installation and commissioning services. One-time capital purchase model with associated project management and installation fees.
- Generator Maintenance & Servicing: Preventative maintenance, routine servicing, installation and repair services for diesel-powered generator sets. Covers units from 40kVA to 2.2MVA. Recurring service revenue through annual maintenance contracts.
- Generator Hire (Powerhire): Temporary power generation equipment rental through in-house rental division Powerhire. Provides containerised generators from 500kVA to 1250kVA+ with fuel tanks, transformers, cabling and distribution. Pay-as-you-go model for construction projects, emergency response, and planned maintenance periods.
- Loadbank Hire: Resistive and reactive loadbank rental for generator testing and commissioning, including up to 5000kVA inductive loadbanks with temporary cabling.
- Control Systems & Switchgear Sales: Sale of generator control panels, paralleling systems, master control panels, and LV/HV switchgear. Includes TGC1000 control systems and replacement for obsolete Petbow systems.
- Service Contracts: Annual maintenance agreements providing dedicated Service Contract Managers, scheduled 6-monthly generator service visits, technical support, and 24-hour emergency call out services.
- Distribution & Cable Hire: Temporary power distribution equipment and cable rental for construction and events through Powerhire division.
- Petbow Product Support: Specialised support and replacement for legacy Petbow generator control systems including Petbow AP600 and Petbow AP800 paralleling control systems.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-specific bespoke solutions |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels8 records
The Generator Company product offering
Product offeringCore offering
The Generator Company supplies, installs, and maintains industrial diesel standby and backup generator systems ranging from 10kVA to 2500kVA+ for mission-critical facilities. It provides full turnkey solutions including design, manufacture of control systems (TGC1000 paralleling systems), installation, commissioning, and ongoing maintenance, supported by an in-house rental division (Powerhire) offering temporary power, loadbanks, and cable hire.
Product overview
The Generator Company (TGC) is a nationwide power solutions provider offering a comprehensive portfolio of power generation products and services. The core offering includes generator sales (10kVA to 2500kVA+), generator maintenance and servicing, and control systems/switchgear. TGC provides complete turnkey solutions encompassing design, supply, installation, testing, and commissioning, supported by in-house project management. Their product portfolio centres on MTU-powered diesel generators (a Rolls-Royce Solution) and Cummins engines, paired with proprietary TGC1000 paralleling control systems and ComAp/DSE control modules. Supporting services include generator hire through their Powerhire division, loadbank hire, distribution/cable hire, and specialist Petbow product support. The company serves diverse sectors including healthcare (NHS trusts, hospitals), retail, data centres, financial institutions, entertainment, and government facilities, delivering both standard and bespoke solutions for standby and prime power applications.
Differentiator
Problem solved
Functional benefit
Products and services
- Generator Sales Supply of new standby and prime-rated diesel generators ranging from 10kVA to 2500kVA+ for commercial, healthcare, retail, and industrial applications, including design, delivery, installation and commissioning.
- Generator Maintenance & Servicing Preventative maintenance, routine servicing, fault diagnosis, and repair services for diesel-powered generator sets from 40kVA to 2.2MVA, delivered through annual service contracts with dedicated Service Contract Managers and 24-hour emergency call out.
- Control Systems & Switchgear Sales Design, manufacture, and installation of generator control systems including TGC1000 paralleling control systems, Master Control Panels (MCP), and associated LV/HV switchgear for generator synchronization and load management.
- Generator Hire (Powerhire) Temporary generator rental solutions including containerised generators, with the Powerhire division providing essential temporary power during installation projects, emergencies, or planned maintenance for construction projects, emergency response, and event power.
- Loadbank Hire Rental of resistive and reactive loadbanks for generator testing, commissioning, and performance validation, with units up to 5000kVA available with temporary cabling.
- Distribution Hire Temporary distribution equipment hire for managing power distribution during events, construction, or generator installations.
- Cable Hire Temporary power cable rental including LV and HV cables for temporary power installations and generator connections.
- Petbow Product Support Maintenance, repair, and support services for Petbow-manufactured generators and control systems, including Petbow AP600 and AP800 paralleling control system upgrades with TGC1000 replacement technology.
Quantifiable outcome
- Up to 2500kVA backup power capacity per generator installation
- +4 more outcomes
Companies that use The Generator Company
Customer profileNamed customers19 records
Segments8 records
Ideal customer profiles5 records
The Generator Company technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
The Generator Company partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core.
- MTU (A Rolls-Royce Solution)coreStrategic engine manufacturer partnership for diesel generator sets. MTU engines power large capacity generators (up to 2500kVA+) supplied by The Generator Company. Partnership includes Factory Acceptance Testing at MTU facilities in Rustorf, Germany, with client attendance. MTU Series engines used in NHS and critical infrastructure projects.
- CumminscoreEngine manufacturer for standby generators ranging from 275kVA to 1500kVA+. Cummins-powered generator sets featured in Premier League stadium, retail, and commercial projects. Includes Cummins KTA19, KTA50G3, and C275D5 engine variants.
- Leroy SomercoreAlternator manufacturer supplying generators for TGC installations. Leroy Somer twin-bearing alternators oversized for performance compliance. Featured in data centre, distribution centre, and hospital generator projects.
- COMAPcoreControl system provider for generator paralleling and mains synchronisation. InteliMAINS, InteliGenNT, InteliMainsNTC, and MAINSPro G99 protection relays enable soft load transfer, grid connection compliance, and advanced monitoring via InteliVISION 18-inch colour displays.
- ComApcoreControl technology provider for complex generator installations. Inteligen and Intelimains control modules with touch-screen HMI screens provide comprehensive monitoring, control, and programming capabilities for multi-generator systems.
- Deep Sea ElectronicscoreControl module manufacturer providing DSE 7310 and Deep Sea Electronics control modules for generator control panels, enabling engine parameter monitoring, warnings, shutdown status, and manual operation facilities.
- VolvocoreEngine manufacturer for generator sets including Volvo Tad1642-GE (650kVA). Featured in retail and commercial standby generator installations.
- PerkinscoreEngine manufacturer for legacy generator installations including Perkins 165kVA sets used in government facilities.
- CaterpillarcoreEngine manufacturer for generator sets used in standby power applications across commercial and industrial facilities.
- Caterpillar PowerCommandcoreGenerator control system technology (PowerCommand 3.3) providing microprocessor-based monitoring, metering, control, digital voltage regulation, digital governing, and protective functionality for multi-generator systems at major hospital installations.
- Mitsubishi ElectriccorePLC (Programmable Logic Controller) technology provider for load management control systems and generator paralleling control. Mitsubishi touch-screen PLCs with custom programming enable intelligent load shedding relative to available generator capacity.
- PetbowcoreLegacy generator and control system manufacturer. TGC provides upgrade and replacement services for obsolete Petbow AP600 and Petbow AP800 paralleling control systems, representing both a service offering and ongoing relationship with the brand's installed base.
Scale indicators5 records
Recent moves6 records
Expansion highlights4 records
The Generator Company competitors and assessment
Company assessmentDirect peers
- Aggreko: UK-headquartered global temporary power specialist. Direct overlap with TGC's Powerhire rental division, plus generator sales, service, and large-scale critical-power project delivery for similar end markets.
- Power Electrics: Bristol-based UK generator specialist offering sales, hire, servicing, and loadbank testing. Closest direct competitor to TGC in the UK mid-market on size, product range, and customer verticals.
- FG Wilson (Caterpillar): Caterpillar's generator-set brand, manufacturing diesel gensets from 6.8kVA to 2,500kVA. Direct overlap on product range and customer base; TGC also procures Caterpillar engines through its supply chain.
- Atlas Copco Power & Flow: Supplies diesel and electric generator solutions plus a major rental fleet. Overlaps with TGC across generator sales, hire, and servicing for industrial and construction customers.
- SDMO (Kohler): French-headquartered generator manufacturer (now part of Kohler) producing diesel and gas gensets across the same 10kVA to 2,500kVA+ range, with rental and service offerings comparable to TGC.
Broad incumbents
- Caterpillar Inc. Parent of FG Wilson and a major engine/alternator supplier to TGC. Operates broadly in power generation as part of a much larger industrial portfolio; a competitor on large project tenders and an upstream partner simultaneously.
- Cummins Inc. Major diesel engine manufacturer and supplier to TGC (KTA19, KTA50G3, C275D5). Also competes with TGC via its own Power Generation business selling generator sets and power systems directly to end customers.
- Rolls-Royce Power Systems (MTU): Supplies MTU engines for TGC's largest 2,500kVA installations and conducts Factory Acceptance Tests with TGC's clients. Also a broad incumbent competitor in mission-critical and data center standby power.
- Generac Holdings: Largest US-based manufacturer of backup power generators with growing industrial and data center exposure. Broader and more diversified than TGC but competes for the same critical-facility standby power wallet.
- Kohler Power Systems: Global generator manufacturer and parent of SDMO, offering diesel and gas generator systems plus switchgear and controls. Overlaps with TGC across product portfolio and end markets without TGC's UK-focused service depth.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
The Generator Company social profiles
Digital presenceThe Generator Company financial estimates
Financial estimateRevenue estimate
Valuation estimate
The Generator Company leadership team
Management profileNumber of profiles
The Generator Company funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
The Generator Company 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 The Generator Company
What does The Generator Company do?
The Generator Company supplies, installs, and maintains industrial diesel standby and backup generator systems ranging from 10kVA to 2500kVA+ for mission-critical facilities. It provides full turnkey solutions including design, manufacture of control systems (TGC1000 paralleling systems), installation, commissioning, and ongoing maintenance, supported by an in-house rental division (Powerhire) offering temporary power, loadbanks, and cable hire.
Is The Generator Company a public or private company?
The Generator Company is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was The Generator Company founded?
The Generator Company was founded in -1. It employs 51 to 100 people.
Where is The Generator Company based?
The Generator Company is headquartered in Rochester, United Kingdom, in the Europe region.
How does The Generator Company make money?
Eight revenue lines are on record. Generator Sales are the primary driver. The others are generator Maintenance & Servicing, generator Hire (Powerhire), loadbank Hire, control Systems & Switchgear Sales, service Contracts, distribution & Cable Hire and petbow Product Support.
Who are The Generator Company's main competitors?
Direct peers on record are Aggreko, Power Electrics, FG Wilson (Caterpillar), Atlas Copco Power & Flow and SDMO (Kohler). Broad incumbents are Caterpillar Inc., Cummins Inc., Rolls-Royce Power Systems (MTU), Generac Holdings and Kohler Power Systems.
Does The Generator Company have an API?
No public API is recorded for The Generator Company.
What industry is The Generator Company in?
The Generator Company's product category is Industrial Power Generation Equipment and Services. Its primary akta.pro industry code is IMAIABAJ, Backup Power & Critical Power Systems (Generators/UPS), with a secondary code of EUACALAG, Backup & Resilience Power Systems (Standby Generators, Critical Facilities). Its NAICS code is 333611 and its SIC code is 3621.