Why not start locally and walk into the spa, ask to speak to the manager and give them a sample -- not a full one -- make some smaller versions.

Tell them that you live in the area and have started a company and you'd like their opinion of the product. Then call them a week or so later.


Also ask who the buyer is for the hotel, too.

Sometimes the spa is actually separate from the hotel, other times is part of it. This way you get them both.