The initial teams included the Cape Cod Islanders, the Eastern Kodiaks, the Junior Mariners, the Lake George Fighting Spirit, the New England Stars, the Syracuse Stampede, and the Trenton Habs.

[4] The NSHL continued growth for the 2014–15 season when the league announced three new teams: the Roc City Royals, Central New York Stallions, and the Lockport Express.

[1] After the league was renamed, the Junior Mariners changed their name to the East Coast Minutemen[10] while continuing to play out of Salem, New Hampshire.

[11] On November 18, 2014, the NAHL announced it was adding the Skylands Kings junior hockey team for expansion to the NA3EHL beginning play in the 2015–16 season.

[13] On April 13, 2015, it was announced the New York Aviators, the 2015 United States Premier Hockey League-Empire Division Champions, would be transferring to the NA3EHL starting in the 2015–16 season.