[edit: I overlooked the direct call-out to Indigo in the original post, my mistake. Nevertheless, I'll leave this as perhaps its helpful to others who don't know the company.]
Indigo Agriculture - https://www.indigoag.com/
I worked for a satellite imagery start-up who was acquired by Indigo in December of 2018. I'm obviously biased, but i can genuinely say that the level of innovation taking place throughout this company - towards so many different parts of the agricultural system - has not ceased to astound me since I joined.
They've managed to capture/create/cultivate one of those unique scenarios that rarely happens in any industry: a scenario where all participants benefit. They're helping consumers gain access to healthy, responsibly-sourced food, they're helping to make it profitable for the farmer to provide these foods, and they're helping to make it beneficial to the planet to produce them.
They started as a microbial seed treatment company. By coating seeds with naturally-occurring microbial organisms, these microbes would help crops by making them more resistant to harsh conditions like drought, heat, etc. Kind of like probiotics, but for plants.
Since then, they've expanded into many different parts of the agricultural system, but perhaps their most innovative & potentially impactful contribution is their most recent: the Terraton initiative. They're helping to remove a trillion tons of carbon from the atmosphere by making it financially beneficial for farmers to adopt regenerative agricultural practices to bring this carbon out of the air and into the soil.
I could go on, but the videos and content on their website describe their mission and their work better than I can. I'm really excited about the work we're doing there - I hope you'll think so too.