Otto Simon is a diverse engineering consultancy and project delivery organisation, providing services to the Process and Industrial sectors. Established in 2004 but with origins dating back to 1872, Otto Simon builds upon our experience with innovation. We work successfully with a wide range of clients to deliver cost-effective, innovative and practical solutions across the full project life-cycle. Since 2019, OSL has been an Employee Owned Trust, which brings many benefits to our clients and employees.