Chemical & Processing
Chemical and industrial processing plays a vital role in the production of materials, fuels and goods that underpin modern society. This sector includes chemical manufacturers, thermal processing industries and a wide range of other industrial goods producers.
Today, these industries face significant challenges, from economic headwinds driven by energy, labour and material prices, to the ongoing management of ageing assets and the pressing need to decarbonise. Otto Simon works alongside our clients to overcome these challenges, delivering safe, efficient and pragmatic engineering solutions for both plant improvement and new build projects.
Our team brings deep sector knowledge in the design and operation of industrial processes, enabling us to support projects across the full lifecycle. We deliver plant modifications that improve efficiency, productivity and safety, while also providing concept design through to full project execution including construction and commissioning of new facilities. Our process led multi-disciplinary engineering team ensure our clients receive robust and practical solutions that are tailored to their operational and regulatory environment.
In our 20-year history we have successfully completed thousands of projects ranging from targeted upgrades of existing assets through to the design and delivery of large-scale new build facilities. Our track record demonstrates not only the technical capability to execute complex projects, but also the reliability and consistency that clients demand when selecting an engineering partner.
We believe in building strong and lasting relationships with our clients. Much of our work is repeat business from trusted partners who value our collaborative and flexible approach. By tailoring our services to meet each client’s specific needs, and by upholding our values of respect, integrity, responsibility, camaraderie and pragmatism, we support our clients in delivering technically and commercially successful projects.
As an Employee-Owned Trust, every OSL team member is personally invested in the success of our clients, creating a shared commitment to delivering the highest standards of service and long-term value.

Meet Our Head of Sector
Aaron Cross
Aaron is a Chartered Process Engineer, leading project delivery in the Chemicals and Processing sector within Otto Simon. He has extensive experience with plant improvements and new build projects, from small-scale modifications to multi-million-pound new facilities. His experience includes safety improvement projects, optioneering, and all stages of project design, including Pre-FEED, FEED, and detailed design.
In addition to his design expertise, Aaron has hands-on operational and commissioning experience with several UK chemical manufacturers. This provides him with a unique, on-the-ground understanding of the key challenges our clients face.
Healthcare Products, Batch Processing Plant
New-build Healthcare products batch processing plant. Scope included: detailed engineering, project management, and procurement services.
MPFA Capacity Expansion Project
Otto Simon completed the FEED study for the MPFA 2 project in Ellesmere Port.
Flare Stack, British Steel (EPC)
Otto Simon were the partner of choice for the British Steel Coke Ovens to undertake various projects on the Coke Oven Gas by-product's recovery plant.




