Co-Soap is an Oakland worker-owned cooperative soap company started by five Berkeley grads. Their soaps are all vegan and made of natural ingredients. In Oakland, you can buy their soap at Mandela Foods Cooperative, Home Spun Bikes, Oakland Food Mill, and Rock Paper Scissors Collective. It seems that they donate 10% of all pre-wage profits to help start other worker cooperatives in the Bay Area. You can learn more about them on their site: http://www.co-soap.com.
This organization is a part of the Network of Bay Area Worker Cooperatives (NoBAWC).