About Us
OUR STORY
A long-standing legacy built on expertise
Simpson Coulson’s engineering consultancy foundations were established in 1965 by by two ICI Engineers. With over six decades of experience delivering high-quality structural, marine and civil engineering solutions across complex industrial and port-side environment.
We have built a reputation for technical excellence, integrity and a practical approach to engineering. Our experience, combined with an in-depth understanding of local industry and regulatory requirements, enables us to deliver solutions that are safe, efficient and built to last
60+
Years of experience
3.75
Revenue in 2025 (Million)
250+
Construction Projects Delivered
6,000+
Design Projects Delivered
WHAT WE DO
From Concept to Completion
We provide a comprehensive range of engineering, design and construction support services, combining technical expertise with practical delivery.
Structural Engineering Design
Marine Engineering
Civil Engineering & Drainage Strategies
Construction Services
Building Information Modelling
Project Management & Technical Support
Condition Surveys & Structural Appraisals
Feasibility Studies & Pre-planning Support
Temporary Works Design
Building Control Submissions
CAD Services
Lightweight Steel Frame Designs
MEET THE TEAM
A team built on expertise
Our strength lies in our experienced and dedicated team, combining decades of knowledge with the next generation of engineering talent.
John Lees
Managing Director
James Lees
Engineering Manager
Katherine Lees
Development Manager
Nathan Bancroft
Projects Manager
Responsible Engineering
Safety at the Core. Sustainability in Mind.
We recognise our responsibility to protect people, minimise environmental impact and deliver engineering solutions built to last. From design through to construction, health, safety and sustainability are integral to the way we work.
Our Approach to Every Project
From initial concept through to completion, our approach is founded on sound engineering principles, collaborative working and efficient project delivery.
- Safety First
- Responsible & Sustainable Solutions
- Reliable Project Delivery
- Innovative, Practical Design
OUR VALUES
What Drives Us
Integrity
We deliver what we say, with honesty and transparency.
Excellence
We strive for the highest standards in everything we deliver.
Collaboration
We build strong, long-term partnerships with our clients and supply chain.
Sustainability
We design and deliver solutions that support a safer, cleaner and more resilient future.
Trusted by Industry Leaders
Proud to deliver engineering expertise and practical solutions for leading organisations across the marine, industrial and construction sectors.
ROOTED IN TEESSIDE
Local knowledge.
Global capability.
We have a deep understanding of the Teesside region’s industrial and marine infrastructure. Our local expertise and network combined with experience across complex projects nationwide, enables us to deliver innovative solutions wherever they are needed.