There are a number of other incubators that are serving some of that role. The community is growing, but it's still fairly small.
In the biotech space part of that incubation/culture can come in the form of shared lab space. Here are a few (in the Bay Area):
- MBC (née QB3) https://mbcbiolabs.com/
- JLabs https://jlabs.jnjinnovation.com/
- StartX https://startx.com/med
- IndieBio https://indiebio.co/
- Bonneville Labs https://bonnevillelabs.com/
There are a number of other governments and entities that are trying to replicate and improve on the model.
Portland has OTRADI https://www.otradi.org/
(help add to the list?)