I have been recently working to develop a plastic recycling plant for ldpe agricultural mulch in Mexico. This had lead me to looking for a brand recognition system for companies that are working to be responsible with their plastics.
Here is what I have found so far.
This project that offers a survey that helps entities realize there plastic footprint.
This company made a business form auditing and helping companies run marketing campaigns around their hard to recycle products.
This company offer social plastic collection credits as a way of companies offsetting their plastic footprints.
This organization is running brand audits to create awareness and pressure on the largest brands.
Precious plastics map could become a trove of information with a feature that allows brands audits of trash to be posted on the map. Make an area of the website that rates responsible brands and warns on ones that are not. There are some marketable programs that could be developed from this.
If you find more sites that are making efforts in this area or have ideas please post them.