AMARINTH: Precision, Performance, and Progress at Amarinth

Amid a global energy system in transition, where operators are balancing legacy assets with new low-carbon ambitions, the role of specialist engineering partners has become increasingly critical. Across oil and gas, nuclear, and emerging energy infrastructure, demand is shifting towards highly tailored solutions—equipment that not only performs in extreme environments but also meets ever tightening regulatory and operational requirements. For UK-based Amarinth, the past 12 months have demonstrated exactly how valuable that capability has become.

Amarinth’s growth has continued to accelerate across the business, nationally and internationally, as Energy Focus discovered in March 2025. This expansion has been driven by a combination of repeat customers, new international contracts, and continued rising demand for specialist pump technologies. At a time when many manufacturers are navigating uncertainty, Amarinth has instead delivered a record year, underpinned by its focus on engineering depth and project execution.

“Last year was our largest sales input and output in the company history,” highlights Commercial Director, Alex Brigginshaw. “This year, we are projecting further growth. Part of that is to do with increased demand for our magnetic drive pumps that have secondary containment seals to ensure the process is secured while being pumped. They are often deployed in tight footprints, and they are manufactured to very unique specifications.”

This growth reflects more than market conditions. It signals a broader shift towards equipment that is safer, more efficient, and capable of operating in increasingly complex process environments. Amarinth’s API 685 magnetic drive pumps are designed to eliminate leakage risks and are finding application across critical industries where reliability is non-negotiable. 

At the same time, the company’s continued involvement in major infrastructure and energy projects has reinforced its position as a trusted partner. Nowhere is this more evident than in the UK’s nuclear sector, where long-term relationships and technical credibility are essential.

Over more than a decade, Amarinth has built a close working relationship with EDF at Sizewell B, supporting pump replacement and refurbishment programmes across the site. The challenge in nuclear facilities is rarely straightforward. Ageing infrastructure, obsolete original equipment manufacturers, and stringent safety requirements demand a level of engineering capability that goes beyond standard supply.

“We have built a relationship with Sizewell B as a local supplier,” details Brigginshaw. “There are different zones in terms of equipment – the core is nuclear, radioactive equipment, and that is already in place. The secondary layer is highly complex equipment that has been working for decades and often the OEMs are obsolete. That poses a big problem. We can either replicate a precise pump by re-engineering – which is highly expensive as you have to remove the pump, decontaminate, laser scan, and remodel – or we can assess the key dimensional elements and what duty is required and replace with an Amarinth pump.” 

Rather than defaulting to costly replication, Amarinth’s approach focuses on engineering equivalence—understanding performance requirements and delivering modern replacements that meet or exceed original specifications. This ability to combine technical analysis with practical delivery has become central to its nuclear offering with the company’s Senior Head of Technical Engineering visiting the Suffolk site to complete assessments on particular units.

Proximity has also played a role. With facilities located close to Sizewell, Amarinth is able to offer direct engagement, testing transparency, and rapid response—advantages that are increasingly valued in critical infrastructure projects.

“We have overhauled bearing pumps, multi-stage pumps, and they trust what we can do because our facilities are state-of-the-art. They can come and witness the testing because we are so close,” says Brigginshaw.

That trust has translated into increased activity. As the UK government reaffirms its commitment to nuclear as a cornerstone of future energy supply, projects like Sizewell C are moving forward, creating new opportunities for established suppliers.

“There has been a surge in activity with EDF and we have been very busy with a range of different products. We have entered the start of 2026 in position where our relationship has never been stronger.”

The company’s involvement is not limited to existing assets. Its participation in the Sizewell C supply chain, supported by early investment in nuclear accreditation, positions Amarinth to contribute to the next generation of infrastructure.

“We are supporting EDF with both Sizewell B and Sizewell C because we are well placed and we tick all the boxes as a supplier with unique skills. We are part of the Sizewell C consortium and part of that supply chain criteria includes location. We were successful in achieving Fit For Nuclear status years ago because we saw the requirement coming,” Brigginshaw adds. 

PROJECT PIPELINE

While nuclear remains a key pillar, Amarinth’s growth story is equally shaped by international activity, particularly across Africa’s evolving oil and gas landscape. In Nigeria, the company has secured contracts to deliver chemical injection skids for LNG field operations, supporting efforts to improve efficiency and extend the life of mature assets. 

The technical challenge in many mature oilfields lies in declining reservoir pressure. Advances in extraction techniques, including water injection and chemical treatment, are enabling operators to unlock previously unrecoverable reserves—creating demand for specialised equipment capable of operating in harsh and often remote conditions.

“We were approached by Renaissance Africa to supply chemical injection skids to prevent pipeline corrosion and scale build-up,” explains Brigginshaw. 

These skids, while relatively compact, play a critical role in maintaining flow assurance and protecting infrastructure. Their design reflects the broader industry trend towards precision and control, where even small volumes of injected chemicals can have a significant impact on overall system performance.

“The amount of chemical being injected into these wells is required to be small, but it remains a necessity. A typical chemical inject skid can be up to 4m in length, 2m in width, with a pressurised tank and positive displacement pumps to give pressure for injection, but the volume that goes into the wellhead is relatively small. It is required to make sure the process facility does what it needs to,” he details. 

Demand for such systems is growing as operators seek to balance production targets with environmental and safety obligations.

“We have seen a major increase in enquiries about our chemical injection skid capability. From a heritage energy source, we are constantly challenged globally to produce this energy and do so in a cleaner manner. Our clients want the energy out, but they have to do it with technology that manages and monitors it in a way that meets all of the safety and environmental criteria, and often at a remote base.”

Beyond Africa, Amarinth’s expertise is being applied across a range of global projects. From enhancing gas processing operations in the Middle East through advanced monitoring systems, to delivering next-generation cryogenic pump technology supported by UK government innovation funding, the company continues to expand its technical scope. 

Its work on magnetic drive pumps further reinforces this trajectory with its systems setting new benchmarks for safety and reliability. 

FUTURE PROOFED

Clearly on a growth path, the company is positioning itself at the intersection of established and emerging energy markets. Small modular reactors, for example, represent a significant opportunity, combining nuclear reliability with flexible deployment.

“We are actively working with large engineering firms who are looking at SMRs, and we offer vast experience in this type of application. We have the design experience and end-user accreditation, with the likes of EDF and Shell etc, and that gives us credibility,” emphasises Brigginshaw.

In parallel, early-stage engineering work is already underway, ensuring that pump systems can be integrated into compact, modular designs. 

“We are supporting the leading companies, who are heavily involved in this critical phase, on the most effective and efficient solutions to pumping requirements in these early initial stages of design.”

However, what ultimately distinguishes Amarinth is not just its engineering capability, but its approach to quality and accountability. In industries where failure is not an option, the ability to manage every stage of production—from raw material to final certification—has become a defining factor. 

“Our clients pay for our ability to manage the certification and the validation of the components,” explains Brigginshaw. “At the most extreme, we can supply a casing for a pump, and when the casing is poured it can be witnessed by a third-party inspector after which the inspector can come and see the machining process and then radiography and then positive material identification and many more critical phases. From there, it is certified and confirmed, and you also share the welding accreditation, and all of that management of the sub-supply chain is why big companies come to us.”

This level of traceability is increasingly demanded by end users, particularly in sectors such as nuclear and LNG where regulatory scrutiny is intense.

“I have seen a shift-change from end users demanding the traceability around components and activities. There has been an appetite change as end users have experienced quality issues when working with cheaper but compromised suppliers. We have always retained our quality focus above everything,” he states.

That philosophy extends beyond engineering into project delivery itself, where documentation and contract management are treated as equally important. 

“You come to us for our engineering experience; our ability to manage the end-to-end journey of key components; our transparency, and our ability to manage documentation in a timely manner. We emphasise exactly the same expenditure as an overhead on contract management and certification as we do on engineering.”

Underpinning this is a supply chain built on long-term, quality focused relationships rather than transactional procurement.

“Over the last 20 years, we have built the relationships with our suppliers where we work hand-in-hand. We use a few major foundries and fabricators, and because we treat them as partners we can help to get them qualified or requalified. That is good for them, good for us, and good for the industry,” says Brigginshaw.

As demand grows for greater accountability and flexibility, this collaborative approach is proving increasingly valuable.

“When you deal with clients of the size we do, you have to be able show your agility. You cannot force clients into the wrong fit. You have to work to their needs and ensure that they get exactly what is required,” he concludes.

In a market defined by complexity and change, Amarinth’s success lies in its ability to stay focused on fundamentals: engineering precision, quality assurance, and a willingness to engage deeply with the complex challenges its customers face.