Danish offshore vessel owner Esvagt is preparing for a no-deal Brexit after giving up hope of the UK's talks with the European Union bearing fruit.
The UK's transition agreement is due to end on 1 January, but trade talks continue.
However, Esvagt chief executive Peter Lytzen no longer thinks a deal will be signed.
He told the Borsen newspaper: "I do not believe in it any more. What I hear is that nothing is really happening in the negotiations.
"I think there are too many problems for it to fall into place."
As a result, Esvagt has been tendering for work in the US in anticipation of operations becoming much more difficult in the UK, where it derives half its revenue.
Lytzen said the uncertainty costs time and effort.
Wind farm hope
In June, Esvagt expressed concerns that it will face a labour shortage as Denmark expands its wind farm construction plans.
The government had just approved new schemes to add two "energy islands" totalling 5 GW at Bornholm and on an artificial island in the North Sea, as well as a new 1 GW offshore wind farm at Hesselo.
It also paved the way for carbon taxes as part of moves to cut emissions by 3.4m tonnes by 2030.
The new deal "turbo-charges" the expansion of offshore wind in Denmark, which is good news for the 200 Danish ships operating in the sector, shipowners organisation Danish Shipping has said.
The plans could create 85,000 full-time jobs over the next 25 years.