Business Details
16 Years
experience
Expert Subsea Engineering Solutions for Offshore Energy
Peritus International delivers cutting-edge subsea engineering solutions for the offshore energy sector. Our team of globally recognised experts brings decades of experience in designing and managing technically complex projects across oil and gas, offshore wind, and marine energy. With regional engineering centres worldwide, we combine local expertise with a unified approach to reduce costs while maintaining technical excellence. Our engineers have led projects in extreme environments, from the Arctic to ultra-deep waters, ensuring robust, sustainable solutions. We prioritise client collaboration, leveraging advanced software tools and ISO 9001-certified systems to meet evolving industry challenges. Our commitment to innovation is reflected in awards and nominations, including the Surrey Business Awards and Subsea Expo Awards.We adhere to rigorous quality, safety, and environmental policies, ensuring compliance with international standards. Our executive team, with over 150 combined years of subsea experience, drives a culture of continuous improvement and technical leadership. We specialise in lifecycle project management, from concept screening to decommissioning, supporting clients in achieving operational efficiency and regulatory compliance. Our work on pioneering projects, such as CO2 transportation systems and floating wind cable solutions, underscores our role as industry leaders. Through transparent governance and stakeholder engagement, we deliver value-driven engineering that aligns with global energy transition goals.
Services
Subsea Pipelines
Subsea Cables
Risers
Project Management
Integrity Management
Subsea Systems
Field Development
Details
- Year established: 2010
Highlights and features
- We offer 30+ years of subsea engineering experience in 20+ countries
- Our ISO 9001-certified systems ensure quality project delivery
- We operate regional engineering hubs across six continents
- Our team includes pioneers in CO2 pipeline and floating wind technology
- We've delivered 11,492km of pipeline projects globally
Associations and certifications
- ISO 9001
Services
Subsea Pipelines
We design subsea pipelines for oil, gas, hydrogen, and CO2 transportation in challenging environments. Our engineers specialise in wall thickness optimisation, geohazard mitigation, and HPHT systems up to 3,500m depths. We provide full lifecycle support from route selection to decommissioning, using advanced tools like DNV PET and ANSYS. Our solutions incorporate cathodic protection, buckle arrestors, and seismic resilience, ensuring compliance with ISO and DNV standards.
Subsea Cables
Our cable engineering covers dynamic and static systems for fixed and floating wind, interconnectors, and oil & gas applications. We specialise in route optimisation, on-bottom stability analysis, and ice interaction mitigation. Our team designs landfall solutions using HDD and micro-tunnelling techniques, with expertise in fatigue analysis and geohazard management. We use tools like Orcaflex and SAGE to model complex seabed interactions and ensure reliable power transmission in extreme conditions.
Risers
We engineer all riser types including TTR, SCR, and flexible systems for shallow to deepwater applications. Our services include global static/dynamic analysis, fatigue assessment, and VIV mitigation using Flexcom and ANSYS. We design riser interfaces with subsea structures and platforms, incorporating bend restrictors and buoyancy modules. Our team has delivered solutions in the Gulf of Mexico, West Africa, and North Sea, addressing challenges like seismic activity and pipeline walking.
Project Management
We provide owners engineering and project management for complex offshore developments. Our ISO 9001-certified systems cover FEED to execution phases, with expertise in EPCIC contractor supervision. We develop EPIC documentation, technical specifications, and risk management strategies. Our team has managed projects valued up to $2bn, ensuring compliance with API, ISO, and NORSOK standards while optimising cost and schedule efficiency.
Integrity Management
Our risk-based IMR services cover pipelines, cables, and subsea structures across their lifecycle. We conduct freespan analysis, cathodic protection reviews, and fatigue assessments using DNV FATFREE and SIMLA. We develop inspection strategies, HAZID studies, and life extension plans, supporting clients with regulatory compliance and decommissioning decisions. Our team provides real-time offshore support and remediation design for assets in harsh environments.
People
Ian Nash
Group Managing Director
With 34 years' experience, Ian leads our global subsea pipelines division. He holds engineering degrees from Loughborough and Strathclyde Universities, and is a Chartered Marine Engineer. He has managed major projects across five continents, previously holding senior roles at INTEC Engineering and Saipem.
Chas Spradbery
Director of Operations
Chas brings 25 years' expertise in subsea cable engineering and project management. A Chartered Engineer with a PhD in high-strength steels, he has led world-first projects for Petrofac and Wood. He specialises in offshore pipeline design and installation challenges in complex environments.
Ir Siti Haryana A Ghani
General Manager Asia Pacific
With 20+ years in offshore engineering, Siti leads our Kuala Lumpur operations. A Professional Engineer in Malaysia, she has managed pipeline projects across Southeast Asia, Africa, and the Middle East, covering all design phases from concept to construction.
Christopher Burnett
Director of Engineering
Chris has 20 years' experience in subsea pipeline design, including carbon capture systems in the North Sea. He specialises in finite element analysis using ANSYS and ABAQUS, and contributes to industry software development through DNVGL JIP committees.
Robert Wall
Finance Director
Robert provides financial leadership with 20 years' experience in international engineering firms. A Fellow of Chartered Accountants Ireland, he specialises in multi-currency financial modelling and strategic business planning for complex offshore projects.
Questions
What sectors does Peritus International operate in?
We serve oil and gas, offshore wind, marine energy, and carbon capture sectors globally.
Do you offer project management services?
Yes, we provide full lifecycle project management including EPCIC contractor supervision.
Are your systems ISO-certified?
Our management systems are certified to ISO 9001 standards.
What geographic regions do you cover?
We operate across Europe, Africa, Middle East, Asia Pacific, and the Americas.
Can you handle deepwater projects?
Our engineers have experience in projects at depths up to 3,500 meters.
Do you provide integrity management services?
Yes, we offer risk-based IMR (Inspection, Maintenance, Repair) for all subsea assets.
