Pattrick Smellie, Paul McBeth, Jenny Ruth and Jehan Casinader all nominated.
The new Hart family food empire is growing its footprint, buying Movenpick licensee Emerald Foods Group for an undisclosed sum.
The work will see carbon emissions reduced to 107,560 tonnes.
One death aboard a ship is one death too many, animal welfare activists say, while farmers are warned ban will increase costs.