Examples like law firms or physicians' offices. These are relatively small firms with very wealthy principals. They are asking for taxpayer money to maintain their wealthy lifestyles, so they don't have to sacrifice their Bentleys to pay staffers. Examples: Thomas J Henry in San Antonio.
LLCs and franchisees that probably have millions of dollars in holdings and cash, but act under the guise of "small business" because they operate fast food or something.
Religious organizations. It's one thing if something like a local YMCA gets funds, but a church outright getting funds without proving it is going to public services (why don't we just have better public services?) is not proper. Churches already don't pay taxes.