Your searches might be more successful if you spelled it correctly. "acrylic." Also consider searching on "polycarbonate" and/or "Lexan."
There are plenty of online shops that sell acrylic. McMaster Carr comes to mind. I wouldn't consider them a "wholesaler," though, but those exist, too. Unless you're looking for an uncommon thickness or a very large amount, you're probably better off buying from a local glass repair shop. You'll find that their prices aren't all that much different from what you'll find online. They'll also cut it to your dimensions and you won't have to pay shipping fees.