About Us

Respected leaders in hydrographic personnel

Our story

DOHS was founded in 1989, at a time when the offshore surveying industry was increasing the use contract staff. Our founder, Dave Oliver, who was well connected in the oil industry, began receiving enquiries about suitable contractors for specific projects. He realised that offshore firms would appreciate a service partner who could take away the headache of finding qualified contractors, and DOHS was born.

Today, we have established ourselves as respected leaders in hydrographic personnel. We have a team of five in-house experts at our offices in Great Yarmouth, and a database of over 6000 contractors and industry contacts.

DOHS is a member of the International Marine Contractors Association (IMCA), the trade association representing offshore, marine and underwater engineering firms and FPAL the approved supplier database to the Oil and Gas industry.

Our contractors

Our contractors offer skills in hydrographic and geotechnical surveys, subsea construction, project management, desktop studies and more.

We have a database of over 6000 fully qualified and experienced contacts, covering every skillset and every location around the world, including the UK and Europe, North America, Africa, Malaysia, Indonesia and Australasia.

We specialise in helping you overcome problems such as unexpected peaks in workload, unforeseen skill requirements and illness or compassionate leave. Wherever you're working, and whoever you need for your project, we can provide them – often in as little as 24 hours.

Need a contractor?

To start the process, simply contact us with details of the project, start date, duration, location and role to be filled. The more specific information you can give us the better.

We’ll search our database and get back to you with potential contractors as soon as we can.

Our portfolio of services has been continually developed and enhanced.