EHC Kloten were relegated to the Swiss League, while SC Rapperswil-Jona Lakers won promotion to the NL for 2018–19.
[4] Pekka Tirkkonen was fired by EHC Kloten on October 16, 2017, following a five-game losing streak and after posting a 2-0-0-11 record through 13 games this season, sitting dead last in the National League.
[7] HC Ambrì-Piotta is playing its final years in the old Valascia, as construction for their new building are set to begin in the spring of 2018 and should be ready in time for the 2020/21 NL season.
[8] HC Davos' Vaillant Arena is set to undergo major renovation at the end of the season to upgrade most of the stands, the concourse and the locker rooms.
The Patinoire des Vernets in Geneva is set to undergo minor renovation during the first national team break in November.
The VIP area will be expanded to add an additional 170 seats and standing room on the north side will be brought closer to the ice rink.