While I'm not aware of any that explicitly focus on conservation, there are established ways to get involved as a business. I'm in the sensor-networking space and spend a lot time following this domain. What follows is just general advice in leu of respoding with 'I want to know too' to your post. First, (and USA-specific) check the RFQs from various government organizations. The process can be foreboding and favors…
Just a quick not in reply to your use of the phrase "get involved as a business". There is a lot of entrepreneurial activity nowadays that is not the kind of "business" that you probably meant. Social entrepreneurs create new charitable endeavours to do something that falls under the banner of non-profit activities. In some countries there are even MBA programs that offer a "social entrepreneur" track.
It's worth keeping in mind that the startup world has grown well beyond the bounds of profit-making businesses.