Also, look at GroundWire.org. They work with mostly environmental organizations. They have a non-profit (Grants + Private Funders + lower cost Services revenue

Also, look at GroundWire.org. They work with mostly environmental organizations. They have a non-profit (Grants + Private Funders + lower cost Services revenue model. As a US Non-profit, they file an IRS Form 990 and publish a detailed annual report.