HOW CAN I PROTECT MY WORK PRODUCT AND PROPRIETARY DATA FROM COPYRIGHT INFRINGEMENT OF A CANADIAN TRANSPORTATION COMPANY

The question presupposes that you have protectable property. Have you filed for and been granted copyright registration? Have you filed for and been granted software patent protection (increasingly difficult given recent decisions)? Have you in place a formal trade secrets management and protection program and are you following that program?

Assuming protectable property, you could consider an infringement suit if they are infringing. Are they selling any product or service in the US, or, even better, in your locale?

If they are an actual or potential customer or working partner, you preferably would have a written agreement, drafted by an attorney who knows the specifics of your product, that specifically addresses this problem and also gives you jurisdiction in your local territory.

Please note that this does not constitute and is not intended to constitute legal advice. For reliable legal advice, consultation in person with an attorney licensed in your jurisdiction should always be pursued.