About Seas Geosciences
Grounded in heritage. Focused on the work ahead.
Seas Geosciences is part of Woocheen, Sealaska’s ocean health business platform, and that heritage shows up in how we work every day – from the way we manage offshore risk, to the care we take to protect the oceans, coastlines and communities connected to every project. Sealaska is an Alaska Native corporation founded to strengthen the people, culture, and homelands of its Tlingit, Haida, and Tsimshian shareholders.
Through Woocheen, Sealaska brings together complementary businesses focused on ocean health, environmental stewardship, and sustainable resource management. As the geosciences division of Woocheen, Seas Geosciences provides specialist marine geotechnical and geophysical services that support the responsible development of offshore infrastructure and advance ocean science.
Leadership built in the field.
Employee Spotlight
Colm Hurley
Nearshore & Onshore Operations
Colm Hurley
North America
Nearshore & Onshore Operations
An expert in large-scale ground-investigation projects, Colm enjoys interacting with people – especially clients and site teams. Originally from Ireland, Colm has joined Woocheen’s geosciences team in California.
Tim Boyd
Nearshore & Onshore Operations
Tim Boyd
Nearshore & Onshore Operations
Tim Boyd leads all aspects of Gregg Drilling’s land-based work, including client relationships, project management and the preparation of commercial proposals and tenders. He has more than 25 years of experience in the management of on-land and marine site investigations and projects. Tim has managed site-investigation projects around the globe and has experience with a wide variety of drilling and testing methods, including cone-penetration testing, sonic drilling and high-resolution site characterization methods.
Tom Davitt
Geophysics
Tom Davitt
Northern Europe
Geophysics
A long-term view characterizes Tom’s work as a professional geophysicist (P.Geo). He has worked around the world and brings more than 30 years of experience in geophysical applications and solutions applied to engineering, natural resources and renewable energy projects. A graduate of geophysics from University College Dublin, he is the co-founder of Scantech Geoscience, a past-President of the Geophysical Association of Ireland and a registered member of the European Association of Geoscientists and Engineers.
Dai Nelsey
Offshore Operations Director
Dai Nelsey
Offshore Operations Director
Dai Nelsey serves as Operations Director for Seas Geosciences, where he leads project delivery and operational performance across the business. With extensive experience in geotechnical engineering and offshore investigations, he is focused on ensuring safe, efficient, and high-quality project execution while supporting the continued growth of the company.
Dr Orla Dardis
Geophysics
Dr Orla Dardis
Geophysics
A fascination with rocks and the wild complexity of our planet drew Orla to geophysics. In her more than two decades in the field, she has studied earthquakes, volcanoes and countless subsurface settings around the globe. Orla has worked with companies using geophysics for research applications, geotechnical engineering, oil exploration and mining. She holds a PhD in Geophysics from the University of Ulster, a Higher Diploma in Environmental Engineering from Trinity College Dublin, and a Graduate Diploma in IT from Dublin City University. Orla is a professional geophysicist (P.Geo) and a registered member of the European Federation of Geologists (EurGeol).
Mission & vision
Our MISSION is to deliver high‑quality geoscience solutions that support responsible subsurface development. Grounded in science and driven by a deep respect for the planet, we help clients understand uncertainty, manage risk, and make informed choices that balance performance, value, and long‑term stewardship.
Our VISION is to be a trusted leader in geoscience, known for clarity, integrity, and impact. Seas Geosciences strives to set the standard for technical excellence, thoughtful interpretation, and meaningful collaboration—building long‑term, trustworthy partnerships with our clients.