Representing your best interests, guiding your outsourced work
There are many skilled contractors out there. But the fate of your project deserves more security than faith and good will. Let us be the expert interface between your development ambitions and your contractors. Making sure your outsourced work is completed on spec, on budget and in the best interests of your business.
You deserve to feel total confidence in your suppliers
The opinion of a genuine expert is always useful. That’s especially true with something as crucial, costly and complicated as offshore engineering. Let us be the interface between your development ambitions and your contractors. Your eyes and ears on board a survey vessel. Your inside expert in the office. Your mediator ensuring the right decisions are made – guiding your projects to cost efficient and successful completion.
Our representation services are about giving you confidence that your outsourced work is being completed to spec, in accordance with the scope of work, with your best interests at heart. We also make sure you aren’t being sold additional work that isn’t necessary. No matter where in the world your development is, we can get one of our experts there to act on your behalf. All backed up with 24/7 support. Ready when you are.
Types of representative support we can provide:
- Geotechnical and geophysical SI package managers
- Onshore technical and operational support
- Review of contractor deliverables
- Supervision of post-fieldwork laboratory scheduling and testing
- QHSE support
- Export cable routing support
- Cable trenching operations support
Engineering expertise
A highly experienced team of geophysical, geotechnical and ocean engineering experts.
Commercial sensitivity
There’s a bigger picture for your development. Your commercial success never leaves our focus.
Straight talking
We are completely independent – advice is always deeply rooted in our clients’ best interests.
Highly responsive
We are agile and can respond quickly to new project demands.
Survey Support
Contracting survey vessels is expensive. You deserve to feel confident that exactly the right data is being collected, with your best interests at heart. That’s where Ternan Energy come in.
On dry land
We can place a member of staff within your organisation to manage the delivery of a geotechnical or geophysical site investigation package.
On board a survey vessel
Let us be your eyes and ears on board a survey vessel. We will make sure your data is gathered on spec, on time and on budget – communicating mission-critical information as soon as it’s discovered.
Site Investigation
The cost of site investigations can run into millions of pounds. We help you plan surveys in a way that prevents costs from spiralling, while making sure you gather the data you need to make informed design, development and commercial decisions.
Outcome orientated
Every project is different. Our investigations are always conducted to align with your developmental ambitions.
Commercially focused
We keep a keen eye on the bigger commercial picture – whether that’s identifying red flags as early as possible or making sure there are no surprises when it comes to construction.
Unbridled honesty, unbiased advice. Just the way it should be.
When you choose Ternan Energy, you choose a partner that’s 100% independent. There’s no recommending needless additional work to please external shareholders. And no referring you to partner or parent companies. Our only focus is doing what’s right by you, your project and your commercial interests. That’s a promise.
- Integrity: We promise unbiased honesty that is rooted in our clients’ best interests.
- Independence: We are completely independent and 100% employee owned.
- Innovation: We develop creative answers to complex engineering challenges – helping clients to maintain profitability in a sector where margins can be tight.

Client feedback
What do our clients think?
We make a measurable difference for our clients. Here’s an example.
Take a deep dive into how our geophysical, geotechnical and ocean engineering expertise brings tangible benefits to a project.
Delivering Expert Offshore Client Representation for Vattenfall Zeevonk
The Challenge Vattenfall's ambitious Zeevonk offshore wind farm—projected to deliver 2GW of wind power alongside a 50MWp floating solar farm—faced the complex challenge of conducting comprehensive site investigations 62km off the Dutch coast. As a joint venture...

Delivering Expert Offshore Client Representation for Vattenfall Zeevonk
The Challenge Vattenfall's ambitious Zeevonk offshore wind farm—projected to deliver 2GW of wind power alongside a 50MWp floating solar farm—faced the complex challenge of conducting comprehensive site investigations 62km off the Dutch coast. As a joint venture...
The more you work with us,
the more you derisk your project.
The lifecycle of any offshore development is intricately connected. Each phase – and its success – is contingent on the phases that came before. It’s why working with an independent expert can generate huge savings. When each part of the process is conducted meticulously, without losing sight of the bigger picture, the impact on costs can be transformative. Let us help.
Desktop study and open-source data collation
Gap analysis
Survey and site investigation design
You are here in the project timeline
You can come to us for expert support with each phase of your project. The more you work with us, the more you derisk your project.
Foundation design
Subsea cable support
FAQs
Why does client representation matter?
Conducting offshore engineering work is expensive. But sometimes developers lack the in-house expertise to make sure the work they have contracted is being undertaken in the right way. We have the expertise to link the chain between you and your suppliers – making sure your outsourced work is executed to spec and with respect for your commercial interests.
How do you choose your representatives?
We maintain a small global network of trusted geotechnical and geophysical engineering experts. These professionals have been vetted thoroughly by us to make sure they have the right knowledge, skills and experience. In short: to be good enough for you, they have to be good enough for us.
Why is it important that Ternan Energy is independent?
We have no vested interests. No stakeholders. (We are employee owned.) And there’s no referring you to parent or partner companies for work that you don’t need. We give our clients honesty. And always work towards the best possible outcomes for their projects. We can do the same for you.
Is it cost effective to work with an expert like Ternan Energy?
Offshore development requires significant capital investment. Commercial sensitivity is crucial to make sure your project recoups the investment and operates profitably. That’s precisely why you should work with an expert who has the engineering expertise and project experience to maintain commercial focus.
Knowledge is for sharing.
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Any questions?
Just ask.
If you have any questions or would like to discuss a project, it’s easy to get in touch.