You need to unionize and start collectively bargaining for your rights as workers.
First find out as inconspicuously as possible how receptive ownership would be to sign a contract that would make them signatory to the union that you would eventually be forming.
If it's favorable, hurry up and unionize and begin your first session of collective bargaining. Start with demands 3X more than you know they'll ever accept, then when you settle they will think they talked you down when in reality it's more than you initially wanted.
It's absolutely key that you start off really big with your first collective bargaining agreement, subsequent ones ownership will be bringing in more and more lawyers and financial consultants to analyze the funds of the unions and how well both ownership and union could weather a work stoppage.
If they wouldn't be receptive to becoming signatory to your eventual union. Go ahead and create the union, but bring on some some seasoned union members from a local construction union to begin setting up pickets, and inflatable rats to place in front of your workplace. Eventually ownership will be beat into submission. Then follow what I previously outlined into getting back some of your worker rights.
Eventually you will bleed the company dry, but just make sure you are in charge of the union pension and you'll be able to profit nicely off the demise of the company.