A short History
1995: Our site in Essex, UK has been home to an engineering services company since 1995 when Rousch Technologies was created as the UK arm of Roush Industries, the engineering company founded by legendary American racing engineer Jack Roush. The company established a key supplier base of outsourced engineering, calibration and build support to Ford Motor Company at their nearby Dunton Technical Centre, and to other UK vehicle OEMs.
2004: Rousch Industries acquired control of Mountune, one of the UK’s best-known performance engineering and motorsport companies, expanding their portfolio beyond Ford motorsport and World Rally Championship to other motorsport applications and engine development programmes.
2007: A management buyout of Rousch Technologies saw the formation of Revolve Technologies, with a renewed focus on engineering consultancy and product development support including prototyping and test services, but to a wider range of sectors which including Defence, Agriculture, Advanced Propulsion, Commercial Vehicles and Rail.
Research projects in advanced propulsion led to the formation of UlemCo in 2014, whose mission is to commercialise the companies patented hydrogen dual-fuel engine conversion technology as a transitional step in the use of hydrogen for transport and heavy-duty equipment decarbonisation.
2017: A world-first passenger ferry conversion (Hydroville) commissioned by the shipping group CMB, was launched by Revolve Technologies in the Port of Antwerp-Bruges utilising marine diesel engines converted to hydrogen dual-fuel. This was the start of our push to decarbonise the maritime sector which was continued under CMB (below).
2019: CMB acquired Revolve technologies and re-branded to CMB.TECH. Over the next 7 years, engine development partnerships were formed with Everllence (formerly MAN), Volvo Penta and ABC Engines, with calibration services completed at our Brentwood site delivering certified hydrogen engines to market for marine and industrial applications. 4x further dual-fuel hydrogen powered vessels were delivered to CMB.TECH, and 6x industrial/on-road applications were delivered as part of engine launch testing within the EU.
2026: A management buyout of the engineering part of CMB.TECH was concluded in May 2026, with ownership of the company transferring to Paul Turner and the company re-branding to PJT Low Carbon Tech. We continue to deliver marine solutions to CMB.TECH, and remain at the forefront of decarbonisation, automation and powertrain development across a range of sectors.
OUR EXPERIENCE
AUTOMOTIVE
Powertrain design, engine calibration, vehicle system integration and prototype testing projects across performance, bespoke and commercial vehicles.
MARINE
Engine development, fuel/power system design, approval and maintenance projects. PLC safety software, operational performance benchmarking.
INDUSTRIAL
Fuel system design, installation, approval and maintenance projects. Prototype testing and technology retrofit conversions.
DEFENCE
Full vehicle and sub-system design, build and maintenance programs. Technology demonstrators and advisory projects.
Hydrogen SYSTEMS
Design and integration of hydrogen fuel systems and control software, calibration of engines and hybrid powertrains, refuelling technology and safety studies.
ALTERNATIVE FUELS
Electrification, hybridisation and non-hydrogen alternative fuel systems/engine development across multiple sectors.
HOW WE
WORK
We believe successful engineering projects are built on collaboration, technical expertise, and clear communication. From initial consultation through to delivery and ongoing support, we work closely with our customers to understand their objectives, challenges, and operational limits.
Our Values
1. Safety: Nothing is more important than the health and safety of our people, customers, and communities. Safety and engineering excellence are embedded in every decision we make and every project we deliver.
2. Innovation: We continuously seek better ways to solve complex challenges, embrace new technologies and actively help customer accelerate technology development.
3. Reliability: We conduct business honestly and ethically. We recognise that our customers depend on us to deliver projects safely, on time, and to specification, and take pride in being trusted and dependable partners over many years.
4. Excellence: We are committed to delivering high-quality engineering solutions through our technical expertise, attention to detail, and by adherence to the highest industry standards. Where standards don’t exist yet, we create them.
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