Disclaimer: this list only provides a partial reference to the vendors/suppliers/manufacturers/distributors that might be useful to other researchers. It does not represent, imply, or indicate any ownership or endorsement of any product from any of the vendors listed here, and the order/sequence is completely random.
P. S. A more extensive (and more U.S./Europe orientated) list can be found here (Hat Tip: Prof. Cobden @UW)