why don't you take a monetary contribution from company towards open source features under open source license. They would contribute per feature delivered bas

why don't you take a monetary contribution from company towards open source features under open source license. They would contribute per feature delivered based on a milestone plan you define. They have zero ownership, no contracts required, they get their features, while you have required monetary support. is that not the open source model? simplifies contracts( ie eliminates) as well.