About us

Our expertise is in two major markets: industrial and marine, with generator applications ranging from 10kVA to 2,500kVA.

Corporate Capabilities

GeneratorOur capabilities are wide ranging:

Mechanical and electrical design

With an experienced team of engineers in our design office we work alongside our clients and their advisors to produce the solution they require. All of these are available in 2D and 3D CAD drawings.

Metal fabrication

Using a skilled team of coded welders we fabricate to meet the clients needs, working with a range of metals including mild steel, stainless steel, aluminium, cast iron and Zintec

Mechanical and electrical assembly

Following our exacting quality standards, our engineers assemble all the mechanical components and required electrical cabling. These are inspected at various stages within the process to ensure the highest quality finished product.

High Quality painting and finishing

We meet the stringent requirements of the Ministry of Defence, Superyacht builders, and off shore platforms using a variety of paints and techniques to ensure that however harsh the environment our products will be protected.

Testing and inspection

Testing can be undertaken in specifically designed test bays at our factory which include various cooling configurations depending on the clients requirements. Testing and presentation of witness tests are also undertaken following Classification Societies rules, Military and Commercial Standards, NHS Trust requirements and WIMES/Petro/Chem application requirements.

Testing can also be undertaken on site using loadbanks or site load, including simulations and complete black building/black start exercises.

Installation and Commissioning

From site delivery and generator positioning through pipework and wiring, testing, cleaning and final handover for industrial applications; to on board installation support, full commissioning and sea trials for marine applications; G&M have the expertise and quality to deliver our clients’ solutions.


Our qualified service engineers have over 30 years experience in servicing and replacing generators, with direct access to world class technical support and an experienced backup team in our extensive factory facilities. Whether you require annual service contracts, one off servicing or generator retrieval and full factory servicing and testing G&M Power Plant can provide the solution.

Quality Standards

We can design, build and test to the following Classification Society Rules:

American Bureau of Shipping ABS
Bureau Veritas BV
China Classification Society CCS
Det Norske Veritas DNV
Germanischer Lloyds GL
Korean Register of Shipping KRS
Lloyds Register of Shipping LR
Italian Register of Shipping RINA
Hellenic Register of Shipping HRS
Russian Register of Shipping RRS
US Military Specifications MILSPEC
MoD (UK) Defence Standards DEFSTAN
NATO Standards NATO

We are a member of the British Marine Federation and abide by its Code of Practice.

We are fully registered as a supplier on the Utilities Vendor Database for a full range of product/service categories.

We are recommended for ISO9001:2008 registration for:

  1. the design, sale, manufacture, test, installation and service of power generation equipment for marine, industrial and military applications;
  2. the design, manufacture, installation and servicing of auxiliary engine driven electrical generating sets and associated control systems for marine, military and industrial applications.

A Brief History

1938 G&M Established
2002 Countryman Power Ltd Acquired
2005 Re-located to modern facilities, streamlining operations whilst retaining key staff
2015 G&M joined TEX Holdings plc group as a member of its engineering division. Please click here to visit the website.

70 Years Experience

G&M has over 70 years experience in

  • Design
  • Manufacture
  • Testing
  • Installation; and
  • Commissioning

of Electrical Power Generation Equipment

Contacting Us

G&M Tex Ltd
Magnet House
Unit 69, Claydon Business Park
Gipping Road
Great Blakenham

T. +44 (0)1473 662777
F. +44 (0)1473 662776
E. sales@gmtex.co.uk

For full contact details and a contact form, please view ourĀ contact us page.

Download Presentation

View our full corporate overview as a PDF. We also have PDF versions of our case study references, along with our industrial and marine generators.