Challenge Accepted. Even if I'm over a year late.
-I think the original was made during Season 23 so the changes that I made are mainly from Season 24 to (and included) this upcoming season. Of course there are also some teams who had less than 3 seasons in Naismith during Season but made the list this time because since then they have reached the 3 seasons mark.
-Once again, teams in bold are those currently in Naismith, and the list only contains teams that have played at least 3 seasons, unless they are currently in Naismith.
Philosopher Kings: 20 seasons
Lawrence Park Panthers: 20 seasons
Beanz Odyssey: 19 seasons
zero territory/Genso Suikoden II: 18 seasons
Montréal Rockets: 16 seasons
Jugglers: 16 seasons
BC Törööö: 15 seasons
Molson Canadians: 14 seasons
Headless Thompson Gunners: 14 seasons
Cape Sable Sculpins/Random Noise: 13 seasons
Montreal 67s/Blenkinsop: 13 seasons
brotherhood123/Syndicalists': BC 13 seasons
Flying Yorts: 12 seasons
North East Point Toastifiers: 12 seasons
the ragin stajans: 12 seasons
Herman Griffins: 12 seasons
Serenity Now!: 11 seasons
Saskatoon Storm: 11 seasons
NW Alberta Kaboom United: 10 seasons
The Hounds: 10 seasons
Green Machines: 10 seasons
Thoroughbreds: 9 seasons
Iqaluit Stingers/Paper Pushers: 9 seasons
Pszczyna Team: 9 seasons
Quebec Pugs: 9 seasons
Secret Agents: 8 seasons
Evergreen Terraceists: 8 seasons
Pokey Stars: 7 seasons
Firefly: 7 seasons
Laval Giants: 7 seasons
The Alexander Keiths: 6 seasons
New Glasgow Panthers: 6 seasons
World Alliance: 5 seasons
Pain Train PRO: 5 seasons
New Brunswick Maddogs: 5 seasons
Sg united: 5 seasons
蝴蝶Supreme: 5 season
Canuckleheads: 5 seasons
Mighty Ballers: 4 seasons
Aston Midhurst: 4 seasons
Zanarkand Abes: 4 seasons
Waterloo Raptors: 4 seasons
Molson Export: 4 seasons
Ottawa Lightning: 4 seasons
St. Louis Beasts: 4 seasons
Moth Balls: 4 seasons
Sauga City Spiders: 4 seasons
Ruffian: 4 seasons
Big ballerz: 4 seasons
The Syndicate: 3 seasons
bryantFTW444: 3 seasons
The Saints Are Coming: 3 seasons
C-city Pilsners: 3 seasons
The Meatballs: 3 seasons
Alpines: 3 seasons
Superfreakys: 3 seasons
Sock Bears: 3 seasons
Squalor Super Sonics: 3 seasons
Scarborough Bluffs: 3 seasons
Newmarket West Siders: 2 seasons
V.A.W.T.: 2 seasons
Team Dragon: 2 seasons
Ashcroft Xerocoles: 1 season
Yukon Golddiggers: 1 season
Bright Shadow: 1 season
Please let me know if anything here is wrong.
Thanks to Ryan for making the original list.