While 2015 delivered a "strong" start for Merlin's theme parks division, like-for-like sales fell 12.4 percent, following the roller coaster crash. The group's revenue however remained steady at £1.278 billion, with visitors across all attractions seeing a slight rise to 62.9 million, for 2015.
"The business delivered a robust performance in 2015," said Merlin Entertainments' CEO, Nick Varney in a statement.
"However, 2015 was a difficult year for Merlin following the accident at Alton Towers early in the summer season. The safety of our guests and employees must always come first and we have sought to learn every possible lesson to help ensure there is no repeat of what happened on 2 June."
The operator remains "confident" for its future, with Merlin planning to create 40 new Midway attractions, and four new LEGOLAND parks by the end of 2020.