What Generex does

Generex is a South African designer, manufacturer, installer, and commissioner of diesel power generation equipment, founded in 2013 and headquartered in Boksburg with a manufacturing facility in Alberton North, Gauteng. The company's core offering spans standard packaged diesel generating sets from 30kVA to 2200kVA and custom-engineered power plants up to 30MW single installed capacity, with output voltages from 400V to 11kV. Its technical differentiation sits in Prime and Continuous rated power generation (designed for sustained operation at 80% load factor with 10% overload capability) and cogeneration capability that recaptures waste heat to reduce energy costs and emissions — a focus beyond typical standby applications. Supporting product lines include low and medium voltage control panels and switchboards manufactured in-house, OEM and OEM-approved parts for major generator brands, weatherproof enclosures, and containerized generator units engineered for transport to remote mining sites.

Generex monetizes across multiple streams: hardware sales of generators, control panels, and parts; professional services covering design, installation, commissioning, and maintenance; managed services (remote and on-site support, maintenance contracts, call-outs); and usage-based revenue from a rental fleet of sound attenuated diesel generators from 40kVA to 800kVA. Pricing is quote-based and not publicly disclosed. Go-to-market is enterprise field sales targeting mining, commercial, and residential customers across sub-Saharan Africa, complemented by direct factory delivery for standard units. The customer base is dominated by mid-to-large mining operations (e.g., Metorex Kinsenda, Alphamin Bisie, Asanko Gold, Kropz Elandsfontein) across DRC, Ghana, and South Africa, with additional commercial and residential installations in South Africa. Partnerships with Cummins, Perkins, Volvo, John Deere, Mitsubishi, Caterpillar, Stamford, Leroy Somer, Marelli Motori, Deep Sea Electronics, and ComAp underpin both the technology stack and aftermarket parts economics. The company is privately held under Generex LLC, holds a B-BBEE Level 4 rating and ECA accreditation (membership SW1583), and operates with a headcount in the 11–50 range.

Name

Generex

Legal name

Generex LLC

Website

https://generex.co.za

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Generex designs, manufactures, and installs Prime and Continuous rated diesel power generation equipment (30kVA to 30MW) for mining, commercial, and residential customers across sub-Saharan Africa, with in-house control panels, OEM parts supply, installation, maintenance, and rental services.

Ownership category

akta.pro rank

Product category

Diesel Power Generation Equipment

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Electric Power Generation (22111), Turbine and Turbine Generator Set Units Manufacturing (333611), Fossil Fuel Electric Power Generation (221112)

SIC

Engines & Turbines (3510), Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Diesel Engine Power Plants (Medium/High-Speed Reciprocating) (EUACACAB)

akta.pro secondary industries

Engine Generator & Microgrid Power Plant EPC (Diesel/Gas Recip) (EUAEAAAJ), Emergency & Standby Diesel Generator Power (Critical Facilities) (EUACACAH)

Keywords

• Diesel power generation
• Generator manufacturing
• Load-shedding solutions
• Power plant installation
• Industrial generators

Headquarters

HQ city

Boksburg

HQ country

South Africa

HQ region

Africa

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Generator Sales: Sale of diesel power generation equipment including standard units (30kVA to 2200kVA) and customized power plants up to 30MW capacity. Units include standby, prime and continuous rated configurations.
2. Parts Supply: Supply of OEM and OEM-approved parts at competitive prices for most major generator brands including Cummins, Caterpillar, Mitsubishi, John Deere, Perkins and Volvo.
3. Control Panels and Switchgear: Design, manufacture and supply of low and medium voltage switchboards and control panels for power generation applications.
4. Installation Services: Professional installation of generators and power generation equipment by qualified technical team, offered independently or complementary to generator supply.
5. Maintenance and Support Services: Service programmes including remote and on-site support, monitoring, maintenance contracts, and call-out services for diesel generators and control panels.
6. Generator Rental: Rental of sound attenuated diesel generator sets ranging from 40kVA to 800kVA for short-term and long-term temporary power needs.
7. Design and Commissioning Services: Comprehensive design services for generators and control panels, plus commissioning of installed equipment to ensure specifications are met.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Generex designs, manufactures, installs, and commissions diesel power generation equipment, supplying standard packaged generating sets (30kVA to 2,200kVA) and customised power plants up to 30MW capacity at output voltages from 400V to 11kV. The company also produces low and medium voltage control panels/switchgear, supplies OEM and OEM-approved generator parts, and provides end-to-end services including design, installation, commissioning, maintenance, and rental of sound-attenuated diesel generators.

Product overview

Generex is a South African power generation company offering a comprehensive portfolio of diesel generators and related services. The product range includes Standard Power Generators (30kVA to 2,200kVA) for off-the-shelf needs and Customised Power Generators (up to 30MW capacity, 400V to 11kV output) for specialized applications. Supporting hardware includes Control Panels (low/medium voltage switchboards) and Generator Parts (OEM components from Cummins, Perkins, Volvo, Mitsubishi, John Deere, Caterpillar). The service ecosystem encompasses Installation, Design, Commissioning, Maintenance, Rental (40kVA to 800kVA range), and Parts Supply. Generex primarily serves mining, commercial, and residential sectors across sub-Saharan Africa with Prime and Continuous rated power solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Standard Power Generators Packaged diesel generating sets ranging from 30kVA to 2,200kVA, available in multiple configurations for Standby, Prime, and Continuous power applications. Readily available from factory and designed to suit budget-conscious and discerning customers.
• Customised Power Generators Custom-engineered power generation plants for Prime and Continuous rated applications, with total single installed capacity up to 30MW and output voltages between 400V and 11kV. Includes concept, design, manufacturing, on-site installation, and commissioning.
• Control Panels Low and medium voltage switchboards for power generation applications and distribution networks, built to customer specifications in plant mount, semi plant mount, and remotely mounted configurations.
• Generator Parts OEM (Original Equipment Manufacturer) and OEM-approved parts at competitive prices for most major generator brands including Cummins, Caterpillar, Mitsubishi, John Deere, Perkins, and Volvo.
• Generator Installation Services Professional installation of generators and power generation equipment delivered by a highly qualified and experienced technical team. Available as part of a generator supply package or as a standalone service.
• Generator Design Services Comprehensive design services for generators and control panels, ensuring high-quality output and optimal power generation solutions for various industries.
• Generator Commissioning Expert commissioning of generators and plant equipment to ensure installed equipment meets customer specifications and is fully operational for its intended function.
• Generator Maintenance and Support Services Service programme including remote and on-site support, monitoring, maintenance contracts, and call-out services to keep diesel generators and control panels operating to industry standards.
• Generator Rental Rental of sound-attenuated diesel generator sets ranging from 40kVA to 800kVA, available for short-term and long-term temporary power needs.
• Weatherproof Enclosures Weatherproof enclosures for generators providing protection against environmental elements.

Quantifiable outcome

• Load shedding protection enabling continuous mining operations
• +2 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eleven partnerships are on record, tiered core.

• CumminscoreTechnology or IntegrationCummins is a key engine supplier for Generex generators, providing reliable diesel engines for various power generation applications including standby, prime and continuous rated systems.
• PerkinscoreTechnology or IntegrationPerkins provides diesel engines for Generex power generation equipment, known for reliability and durability in harsh operating conditions.
• VolvocoreTechnology or IntegrationVolvo engines are part of Generex's engine portfolio for power generation applications, providing quality and reliability for generator systems.
• John DeerecoreTechnology or IntegrationJohn Deere engines are available through Generex for power generation equipment, known for industrial-grade performance.
• MitsubishicoreTechnology or IntegrationMitsubishi engines are supplied to Generex for use in generator sets, providing reliable power generation solutions.
• CaterpillarcoreTechnology or IntegrationCaterpillar parts and engines are supplied through Generex for generator maintenance and new equipment manufacturing.
• StamfordcoreTechnology or IntegrationStamford alternators are partnered with Generex for power generation, known for high-quality and reliable alternator solutions.
• Leroy SomercoreTechnology or IntegrationLeroy Somer alternators are trusted by Generex for optimum performance, low maintenance requirements and exceptional durability in various applications.
• Marelli MotoricoreTechnology or IntegrationMarelli Motori alternators are partnered with Generex for delivering high-quality and reliable alternators for various power generation applications.
• Deep Sea ElectronicscoreTechnology or IntegrationDeep Sea Electronics provides generator controllers and auto transfer switch controllers for Generex power generation systems, enabling monitoring and control of engine and generator parameters.
• ComApcoreTechnology or IntegrationComAp provides control products for power generation and engine control, along with accessories and software for Generex generator systems.

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Aggreko: Global temporary and permanent power solutions provider with a large rental fleet and multi-MW plant capability. Closely comparable to Generex in business model — combining rental, installation and remote operations — but at significantly larger scale with strong African mining exposure.
• Cummins: Global OEM of diesel engines and generator sets. Directly comparable as Generex's primary engine supplier and the largest direct competitor in the African genset market, where Cummins sells via dealer networks and direct into large mining customers.
• Himoinsa: Spanish manufacturer of diesel and gas generator sets with containerised and hybrid power solutions. Competes with Generex in the standard and multi-MW packaged genset market, increasingly with hybrid battery-integrated offerings.
• Pramac: Italy-headquartered generator manufacturer offering standard and custom diesel gensets, now part of the Generac group. Comparable to Generex on product range, customisation capability and global project execution including African markets.
• Caterpillar: Global manufacturer of diesel gensets (including FG Wilson brand) and engines. A direct competitor to Generex for large multi-MW mining and commercial power generation projects across Africa, with deeper capital resources and broader dealer coverage.
• Aksa Power Generation: Turkey-headquartered manufacturer of diesel generator sets serving global markets including Africa. Directly comparable as a genset manufacturer covering the same standard kVA-to-multi-MW range that Generex offers, with similar integration approach using third-party engines.
• Atlas Copco Power and Flow: Manufacturer and rental operator of mobile diesel generators and power solutions. Directly comparable to Generex across both equipment sales and the rental fleet model, with significant African mining exposure.

Broad incumbents

• Wärtsilä: Large Finnish power plant OEM and EPC contractor with strong presence in African mining and utility markets. Broader incumbent competing with Generex for multi-MW hybrid and engine-based power projects, with greater financial capacity and engineering depth.
• Rolls-Royce Power Systems (MTU): Manufacturer of MTU diesel and gas gensets for mission-critical, mining and data centre applications. Competes with Generex in the multi-MW prime and continuous rated segment that Generex positions itself in.

Regional players

• Voltampere Transformers / Voltamp: South African-based power equipment manufacturer serving mining, utilities and industry across Southern Africa. Regional peer comparable to Generex on customer base, geography and focus on engineered-to-order electrical power equipment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance2 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 Generex