Business Details
21 Years
experience
Emergency
services
Expert Engineering & Project Management Services
Established in 2005, CONSUB has built a reputation as a trusted provider of engineering and project management services across the global energy sector. Our expertise spans offshore and subsea developments, pipeline transmission systems, and decommissioning projects, with a focus on delivering mission-critical solutions for both traditional and renewable energy markets. Our team of chartered engineers and industry specialists brings decades of combined experience in conceptual design, feasibility studies, and operational support, ensuring technical and commercial success for clients. We pride ourselves on our flexible, client-centric approach, demonstrated through long-term partnerships with major energy operators and contractors worldwide. Our commitment to innovation is evident in pioneering work with valve management systems, hydrogen pipeline projects, and subsea infrastructure solutions.With offices in London, Zug, Aberdeen, Dublin, and Mumbai, we combine local knowledge with global capabilities to support complex energy projects. Our track record includes high-profile assignments such as emergency pipeline repairs in the North Sea, decommissioning support for gas fields, and conceptual designs for renewable energy hubs. We maintain rigorous quality standards through comprehensive integrity assessments, regulatory compliance support, and advanced engineering analysis. Client testimonials consistently highlight our responsiveness, technical excellence, and ability to deliver complex projects on time and within budget. This combination of experience, technical capability, and client focus positions us as a preferred partner for challenging energy sector projects.
Services
Project Management
Engineering Support
Decommissioning Services
Energy Transition Solutions
Valve Engineering
Pipeline Integrity Management
Subsea Developments
Emergency Repair Services
Survey Management
Conceptual Design Studies
Details
- Year established: 2005
Highlights and features
- We have over 20 years' experience in offshore and subsea engineering projects
- Our team includes chartered engineers with specialist subsea and pipeline expertise
- We operate globally with offices in five key energy market locations
- We deliver full lifecycle support from concept studies to decommissioning
- Our patented valve release systems reduce unplanned shutdowns and maintenance costs
What people say
Excellent support
Reliable engineers
Met deadlines
Creative solutions
Trustful partnership
Services
Project Management
We provide comprehensive project management services across all phases of energy projects. Our experienced team delivers hands-on management from concept development through construction support to operational handover. We specialise in managing complex offshore and onshore developments, working either independently or as part of consortiums to ensure projects meet technical, budgetary and timeline requirements while maintaining compliance with industry standards.
Engineering Support
Our engineering support covers feasibility studies, front-end engineering design (FEED), operations support and integrity management. We offer specialist expertise in pipeline stress analysis, subsea infrastructure, and mechanical engineering. Our services include technical documentation, failure analysis, and compliance assistance, working closely with original equipment manufacturers and third-party providers to deliver tailored solutions for both conventional and renewable energy projects.
Decommissioning Services
We provide comprehensive decommissioning solutions for offshore and onshore energy assets. Our services include late-life asset management, regulatory compliance support, waste management planning, and valve release operations. We work with specialist collaborators to deliver full lifecycle decommissioning programmes, including environmental assessments, hazard identification, and safe asset removal strategies for oil & gas platforms, pipelines and related infrastructure.
Energy Transition Solutions
We support the global energy transition with engineering services for renewable energy projects. Our expertise includes hydrogen pipeline systems, carbon capture and storage (CCS) infrastructure, offshore wind farm developments, and repurposing of existing energy assets. We provide technical support from conceptual design through feasibility studies to implementation, helping clients navigate the technical challenges of transitioning to low-carbon energy solutions.
Valve Engineering
Our specialist valve engineering services cover the complete valve lifecycle. We provide design review, failure analysis, condition assessment, and release strategy development. Our proprietary valve release systems enable efficient operation of critical shutdown valves in challenging offshore environments. We offer both onshore and offshore valve management solutions, including regulatory compliance support and integrity management programmes to reduce unplanned downtime and maintenance costs.
People
Frank Nunan
Co-founder & Managing Director
Chartered subsea engineer with specialist expertise in diverless connection systems and subsea structures. Over 25 years' experience in offshore engineering projects, leading technical delivery for major energy operators worldwide.
Paul Melnikov
Co-founder & Director
Senior engineer with 30+ years' experience in subsea pipeline design and field development. Specialises in detailed engineering solutions for complex offshore projects, with extensive experience in construction and commissioning phases of major energy infrastructure.
Robert Carmichael
Director
Offshore industry veteran with over 30 years' experience in submarine pipeline engineering. Expert in pipeline integrity management and offshore construction challenges, having worked on major projects across multiple global energy markets.
Malcolm Blackmore
Director
Project management specialist with 20+ years' experience in offshore and subsea oil & gas projects. Focuses on construction management and operational delivery, with proven track record in complex offshore developments and decommissioning programmes.
Questions
What engineering services do you offer for renewable energy projects?
We provide conceptual design, feasibility studies and technical support for hydrogen pipelines, offshore wind farms, and carbon capture projects, leveraging our oil & gas expertise.
Can you support offshore decommissioning projects?
Yes, we offer full lifecycle decommissioning services including regulatory compliance, waste management planning, and specialist valve release operations for offshore platforms and pipelines.
Do you provide emergency pipeline repair services?
Yes, we develop emergency repair strategies and have experience with diverless repair clamp systems for critical pipeline infrastructure in offshore environments.
How do you ensure project quality and compliance?
Through rigorous technical reviews, integrity management systems, and adherence to international standards, supported by our team's extensive industry experience.
What geographical areas do you operate in?
We operate globally with offices in London, Zug, Aberdeen, Dublin and Mumbai, supporting projects across Europe, Asia, Africa and the Middle East.
Can you provide project management for large-scale developments?
Yes, we have managed large-scale projects including assembling 90+ engineer teams for major offshore developments, working both independently and in consortiums.
