Distribution of my TIGER SHARK Documentary. Need Assistance please

Well I did a search but can't find any thing SPECIFIC to my film and it's demographic, but, I was told to post my questions here. Feel free to redirect me if this is wrong.

So I have made a 23 minute DOCUMENTARY on TIGER SHARKS that I need help trying to DISTRIBUTE. It's about diving with Tigers and then how they get killed in the beach nets, wounding their population etc.

It's categorized as part amateur part professional in that it was shot on a home movie SD camera, but I got professional people in post production on it, animation, music etc.

How do I distribute this film to it's potential? What Distribution companies or Acquisition companies can I find to get this film to? How do I find these companies? If so, what's the process of approaching them?

I'm interested in getting this shown anywhere. TV, internet any small channels or being inflight movies etc. I know there's loads of different avenues that could show this film. Does anyone know how to do this or where to basically start? Any help would be a MAJOR push, thank you.