Irish-based operating lessor Doric Lease is intending to order 20 Airbus A380s for delivery from 2016.
The company disclosed the agreement at the Paris air show.
Engine selection will be made later this year, says Doric Lease chief Mark Lapidus. The A380 is available with Rolls-Royce Trent 900 or Engine Alliance GP7200 powerplants.
Lapidus says he sees growth in routes operated by aircraft with over 400 seats. "These aircraft create new passenger traffic," he says.
Carriers have inquired about the A380 with Doric, he adds, and the lessor says there is "pent-up demand" for the aircraft.
He says that the lessor believes it can "explain" the aircraft to potential operators and help them to "cross the line" into A380 operations.
Doric already has A380 experience with 18 of the type under management.
Its agreement, once firmed in the next couple of months, will bring to 282 the number of A380s ordered by customers.
"The economics of this aircraft are currently unbeatable," says Lapidus. "If anything, we're probably under-ordering."