Hi and welcome to the Forum.
Jordan Importing must have been one of the main importers of Murano glass to the US, judging by the amount that turns up. I don't know which specific post about JI you're referring to, but it's very doubtful that you'll ever find out who made a specific piece. JI's owner's daughter has said that JI had a factory in Murano. I don't know if there's any independent proof of that. It seems more likely that they bought from one or more factories on a contract basis. The vast majority of their glass was low quality in terms of what Murano produced, made to be sold cheaply in gift shops, department stores, and housewares stores. A few of their pieces were of higher quality and may have been made by better know Murano companies. Nothing they ever produced could be tied to a specific designer or worker, though.
Your images don't show so it's hard to say much about your piece.