I’m a Business and Life Strategist with over 20 years of consulting on Life, Government, and Business Strategies. We’ve also submitted numerous bids to government and commercial entities putting us in a unique position to provide you a tactic that should bring you the results in overcoming your dilemma. I'd suggest that you tack action upon the following:

1. Create a Capability Statement and a White Letter. They're what you'll utilize to send to your potential clients. In your capability statement, you'll speak about what your company will offer to your potential client. The white letter will speak to how your product will enhance their product line for your client's customers.
2. Go to each of your potential buyers' website and check to see if they have a Vendor Registration page/link and become a vendor with that company. Once you've become a vendor, see if they require your product. If not your particular product, see who put out a bid for a product that is similar to your product. Once you've found the Purchasing Officer, Purchasing Supervisor, or Purchasing Agent contact information, you'll immediately send them your Capability Statement.
3. Utilize LinkedIn to introduce yourself to the casino's Purchasing Officer, Purchasing Supervisor, and/or the Purchasing Agent to introduce yourself and build a professional relationship with them.

If you have any additional questions or assistance, feel free to contact me.