Christiaan Arie Vermeijden

Part of HAL Trust, Gardline Holdings Ltd. is a holding British company that operates through its subsidiaries to provide marine site investigation, surveys, and engineering services. The company is based in Great Yarmouth, UK. Gardline Holdings was founded in 2014.

Gardline Marine Sciences Ltd. provides marine support services. It is a marine contractor specializing in geophysical, hydrographic, environmental, oceanographic and geotechnical surveys. The firm provides a integrated marine science services including: 2D seismic exploration, 2D/3D resolution data acquisition and interpretation, shallow gas hazard analysis, seabed mapping, shallow to deep water soil investigation, nearshore and coastal surveys, water flow measurement and water quality. The company was founded in 1969 and is headquartered in Great Yarmouth, the United Kingdom.

Gardline Shipping Ltd. operates as a holding company with interests in the marine sciences sector. The company was founded in 1969 and is headquartered in Great Yarmouth, the United Kingdom.

Part of HAL Trust, Gardline Marine Sciences (South America) Ltd. is a British company that provides offshore surveying and marine contracting services. The company is based in Great Yarmouth, UK. Gardline Marine Sciences (South America was founded in 2008.