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Founding of “Subsea Engineering” in January 1985, to be changed to “Allseas Engineering” later
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Employing 15 staff in the office
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Developing the concept of pipelaying on dynamic positioning, leading to the design of the first DP pipelay vessel
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Purchase of
Natalie Bolten for conversion to
Lorelay
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Engineering of the trenching machine
Digging Donald and starting construction
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Christening of Lorelay and executing the first pipelay contract in the North Sea

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Dramatically collapsing oil prices lead to cancellation or postponement of many projects
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Allseas grows to a staff of 55 in the offices
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The low oil prices keep the contract price level down
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Allseas confirms the image of being innovative by introducing the
Pieter Schelte design concept, based on two rigidly connected super tankers

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Allseas grows to a staff of 80 in the offices
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Specialising in small-to-medium diameter pipelines, Allseas attains a 25% market share in the North Sea
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Work starts on the conceptual design of a much larger pipelay vessel, later to be called
Solitaire
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Conversion of Condock II into the trenching support vessel Trenchsetter, operating Digging Donald
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Purchase of the bulk carrier Trentwood for conversion into a new pipelay vessel, but forced to sell her again after six months
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First contract outside the North Sea, in South Africa