What Centrax does

Centrax designs, manufactures, and services gas turbine-driven generator packages in the 3–15 MW range, serving industrial, healthcare, datacentre, food processing, ceramic, and utility customers under distributed-power and combined heat and power (CHP) use cases. The company packages Siemens Energy turbines — the SGT-A05, SGT-300, and SGT-400 — into its CXA05, CX300, and CX400 product lines, and complements hardware supply with long-term service agreements (LTSAs), contractual maintenance contracts (CMCs) with availability guarantees, spare-parts logistics, and pre-owned equipment supply. Customers cited include IESP, British Sugar, Equinix, Gemelli Hospital, Enecogen, Florim, and Decci, supporting a 400+ unit installed base across 30 countries with over 33 million cumulative operating hours. Founded in 1946 in Newton Abbot, United Kingdom, Centrax remains privately held by the Skinner family and operates approximately 280 employees, with its aftermarket layer delivered through 10 in-country service centres.

The business model pairs one-time capital-equipment revenue from generator package sales with multi-year recurring service revenue under LTSAs and CMCs that include availability guarantees, plus pre-owned equipment and spares. Distribution and aftermarket depth — 10 service centres spanning 30 countries — is a structural component of both new-unit sales conversion and long-term retention, and underpins competitive positioning against larger OEMs. The product roadmap is anchored by the 2011 packaging agreement with Siemens Energy (expanded in 2015 to make Centrax the preferred route to market across 31 European countries) and was materially extended in 2023 when the CX400 was demonstrated operating on 100% hydrogen fuel, signalling intent to participate in decarbonising industrial power. North American expansion was undertaken in 2023 through the acquisition of Onpower Inc., expanding the company's direct go-to-market footprint beyond its historic UK and European base.

Name

Centrax

Legal name

Centrax Limited

Website

https://centraxgt.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

101–250 employees

Short description

Centrax designs, manufactures, and services gas turbine-driven generator packages (3–15 MW) for industrial, healthcare, datacentre, and utility customers in 30 countries, packaging Siemens Energy turbines under long-term service agreements from its UK base.

Ownership category

akta.pro rank

Product category

Gas Turbine Power Generation Equipment

NAICS

Turbine and Turbine Generator Set Units Manufacturing (333611)

SIC

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

akta.pro primary industry

Gas Turbines (Industrial & Utility-Scale) (IMAHAFAA)

akta.pro secondary industry

Specialty Power Systems MRO (Generators, Compressors, Pumps, Welders) (TLAKAHAJ)

Keywords

• Gas turbine generators
• Power generation packages
• Combined heat power
• Industrial generator sets
• Gas turbine maintenance

Headquarters

HQ city

Newton Abbot

HQ country

United Kingdom

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gas turbine generator package sales: Sale of high-efficiency power generation packages including CXA05, CX300, and CX400 generator sets, ranging from 3 MW to 15 MW power output using Siemens Energy gas turbine technology.
2. Maintenance and Long-Term Service Agreements (LTSA): Comprehensive Maintenance Contract (CMC) providing availability, performance, and emissions guarantees with scheduled service inspections, spare parts, engine overhaul, spare engine, and remote support. Also includes Schedule Maintenance Inspection (SMI) with priority access to spare parts.
3. Gas turbine overhaul and repair: Complete engine repair and overhaul services for SGT range (in partnership with Siemens Energy) and A05 range (fully certified MROC), including mid-life engine services on site.
4. Pre-owned equipment: Supply of second-hand equipment including part-life or fully overhauled engines, with configurable options for 6.3KV and 11KV systems.
5. Controls upgrade and modernization: Upgrade services for control systems (S5, S7, Allen Bradley, HMI), fuel systems including hydrogen capability, water/steam injection systems, and black start/island operation modes.
6. Turnkey solutions: Complete energy project solutions covering recovery boilers, gas compression, mechanical and electrical services, and bespoke plant control systems.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Centrax designs, manufactures, and packages gas turbine generator sets using Siemens Energy gas turbine technology (SGT-A05, SGT-300, SGT-400), producing high-efficiency power generation packages ranging from 3 MW to 15 MW. The company delivers complete power generation solutions for combined heat and power (CHP), base load, simple cycle, and standby applications, alongside comprehensive lifecycle services including maintenance, repair, overhaul, and modernization.

Product overview

Centrax designs and manufactures a series of high-efficiency gas turbine generator packages using Siemens Energy technology, ranging from 3 MW to 15 MW power output. The product portfolio comprises four main generator set lines: the compact CXA05 series (CXA05-KB5, CXA05-KB7, and CXA05 Mobile variants) for 3.9-5.7 MW applications, the mid-range CX300 series (CX300-1S and CX300-2S variants) for 7-9 MW industrial power generation, and the high-power CX400 series (12.9MW and 14.4MW variants) for 10-15 MW demands. All packages use Siemens Energy gas turbines (SGT-A05, SGT-300, SGT-400) and are designed for combined heat and power (CHP), base load, simple cycle, and standby applications. Centrax also offers pre-owned and refurbished equipment alongside comprehensive lifecycle services including maintenance, LTSA solutions, spare parts, engine overhauls, and modernization upgrades. The company operates from headquarters in Newton Abbot, England and North America, serving international markets across 30 countries.

Differentiator

Problem solved

Functional benefit

Brands

• CXA05: Generator set series using Siemens Energy SGT-A05 (Industrial 501-K) gas turbines, power range 3.9-5.7MW. Includes KB5, KB7, and Mobile variants.
• CX300
• CX400

Products and services

• CXA05-KB5

Quantifiable outcome

• Up to 36% electrical efficiency and 80%+ overall plant efficiency in CHP applications
• +4 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered historical, core and minor.

• Rolls-Royce (historical)historicalTechnology or Integration · 1 January 2014In 1979, Centrax signed an agreement with Rolls-Royce (then Detroit Diesel Allison) to package the 501 gas turbine for CHP applications. When Rolls-Royce sold its Energy gas turbine and compressor business to Siemens Energy in 2014, the relationship transitioned to Siemens Energy.
• Siemens EnergycoreTechnology or IntegrationCentrax is an independent company and premium packager of Siemens Energy gas turbines. They are the sole packager/distributor of Siemens Energy SGT A05 in North America and Europe, distributor of SGT300 and SGT400 in Europe, and a Siemens Energy approved MROC (Maintenance, Repair and Overhaul Centre) for the SGT-A05 gas turbine. Siemens Energy bought out the Rolls-Royce energy division in 2014 and maintained the existing relationship with Centrax.
• Onpower Inc.coreStrategic or Co-development PartnerCentrax expanded their presence into the North American market with the acquisition of Onpower Inc. in 2023, establishing the North American facility in Lebanon, Ohio.
• Atlantic Projects CompanyminorImplementation/ SI/ Consulting PartnerAtlantic Projects Company has experience with EPC (Engineering, Procurement, and Construction) of Centrax gas turbines for data centre projects, including nine Centrax 5.5MW Open Cycle Gas Turbines and systems for Dublin data centre backup.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Solar Turbines (Caterpillar): Caterpillar subsidiary that packages industrial gas turbines (e.g., Mars, Mercury, Taurus, Centaur families) into generator sets for power generation and mechanical drive, serving oil & gas, industrial, and utility customers — directly comparable to Centrax's CXA05/CX300/CX400 portfolio.
• INNIO Group (Jenbacher, Waukesha): Manufacturer of Jenbacher reciprocating gas engines and Waukesha gas engines for distributed power, CHP, and grid-support applications — competing head-to-head with Centrax on the 1–10 MW CHP and industrial power benchmark with overlapping customers.
• Wärtsilä: Provides gas, liquid biofuel, and hydrogen-capable engine-based power plants and energy storage solutions for grid-balancing and industrial customers — overlapping with Centrax's hybrid (engine + battery) and fuel-flexible offering, particularly in utility and industrial segments.
• Rolls-Royce Power Systems (mtu): Supplies mtu-brand gas engines and turnkey distributed power systems including CHP, data-center backup, and grid services — directly comparable to Centrax's CX-class generator sets across data center, healthcare, and industrial CHP.
• MAN Energy Solutions: Manufactures gas engines and turbomachinery for utility-scale and industrial power, CHP, and mechanical drive — competing with Centrax's CX300 and CX400 product range in 7–15 MW industrial power and oil & gas.
• Aggreko: Global provider of temporary and modular power via rental gas turbines and battery hybrid units, including mobile fast-start packages — overlapping with Centrax's CXA05 Mobile and decentralized/decentralized grid support use cases.

Broad incumbents

• Siemens Energy: OEM of SGT-A05, SGT-300, SGT-400 gas turbines and a much larger portfolio of utility-scale and industrial power equipment. Also Centrax's core technology partner, with potential dual role as competitor for large projects.
• GE Vernova: Aeroderivative and heavy-duty gas turbine OEM (LM series) plus integrated power plant solutions across utility and industrial markets — a larger incumbent competing for the same distributed power, data center, and CHP opportunities as Centrax.
• Mitsubishi Power: Supplies H-100 and M501/M501J gas turbines plus power plant EPC services for utility and industrial markets — overlapping with Centrax's mid- to large-scale (10–15 MW) gas turbine power generation and CHP offerings.

Emerging players

• Capstone Green Energy: Manufacturer of microturbines for distributed CHP, oil & gas, and microgrid applications in the 30 kW to 5 MW range — partially overlapping with Centrax's smaller CXA05 units, particularly in low-emission distributed generation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/centrax-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 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 Centrax