I'm wondering why you want it? Is there something really special about their beer you want to emulate? My 2 cents: Go on your own yeast discovery journey and try the many different yeasts available that fit best with your home brew.
Commercial brewers try to keep their yeast program simple, they usually only use one strain in several different styles. The yeast selected may not be the absolute best for one individual style, but is more of a compromise choice.
As a homebrewer, you are not constrained by that, you can use whatever you want or even combine yeasts. Your yeast selection is an opportunity to add a flavor/aroma/complexity component to your beer.
So after saying all that, if a brewery offers tours, go on the tour, tell them you are a homebrewer, ask them a lot of questions about their yeasts, especially what temperatures work best for them, and ask for a pitch.
What's the worst that can happen? Good Luck!