Mossy Earth have, and sponsor some wonderful work (and their videos are great) though it’s worth nothing that they are quite explicit that they are not a charity, nor are they a non-profit. It’s owned by the founders, and operates much like a charitable foundation in terms of their mission - this is outlined in their transparency page here:

https://www.mossy.earth/methodologies/business-ethos

Also in their FAQs:

Is Mossy Earth a charity? We are a social enterprise incorporated as a private limited company in the United Kingdom with a for profit structure. In other words, we are a business and the membership is a payment for a service we provide, not a donation. You pay us to rewild nature, and we do our best to make sure that your money has the biggest possible impact.