You need to name the correct party or else the claim isn't going to be valid against them. It is possible to amend your claim later on, but better to get it right the first time. I would suggest getting a corporate search just to make sure you have the name exactly right -- it'll also have their registered office listed so you know where to properly serve it.
If you aren't sure which of the two parties is at fault, name them both and you can always discontinue later.
Good reference guide:
https://www.albertacourts.ca/docs/de...in-alberta.pdf