Advancing safety and reliability in demanding environments.

Learn more about Pressure Technologies

Our vision is to build a Group that is globally recognised within our markets as the leading provider of pressure containment and control products and services to customers who operate in highly demanding, safety-critical environments where the consequences of product failure could be catastrophic.

Precision Machined Components

The Division comprises, Roota Engineering, Quadscot Precision Engineering, Al-Met and Martract operating under the PMC brand.

These businesses are leaders in their markets, with world-class lead times, highly specialised precision engineering skills and a blue chip customer base.


Chesterfield Special Cylinders (CSC), has over a century of industry knowledge and expertise and is a world leading provider of bespoke, high-pressure gas containment solutions and services.

It is one of only five companies globally who can compete for ultra large cylinder contracts.

Alternative Energy

With an unrivalled installed base of over 100 upgraders world-wide, Greenlane is one of the world’s largest suppliers of biogas upgrading equipment.

Founded on its leading water-wash technology, Greenlane is the only company to offer the three main biogas upgrading technologies to a global market.


Oil and Gas

Group revenue from the oil and gas market was 39% in 2018. This market is primary served by businesses in our Precision Machined Components Division but also by our Cylinders Division.


Group revenue from the defence market was 21% in 2018. This market is served solely by our Cylinders Division.

Industrial Gases

Group revenue from the industrial gases market was 6% in 2018. This market is predominantly served by our Cylinders Division but also by Martract, a business within our Precision Machined Components Division.

Renewable Energy

Group revenue from the renewable energy market was 35% in 2018, while this is currently all from our Alternative Energy Division, there are increasing opportunities for our Cylinders Division in Hydrogen gas storage.

“Operational improvements and continued investment in our people, production capability and Group support underpin our confidence and our ability to realise this tremendous potential in our target markets.”

Chris Walters
Chief Executive

Share Price

98.50 GBX

As at 13:52 24/05/2019

Latest Regulatory news

Regulatory news



Development in the proposed sale of Greenlane

Regulatory news

Holding in Company


Holding(s) in Company

Regulatory news



Update on the proposed sale of Greenlane Biogas