Please note a few of the companies (italicized) are very young, so their websites don't have much info.
I recommend this site for keeping up with which companies are active in the alternative proteins space: https://newprotein.org/. For cultured meat, click "Alternative Protein V 3.0" and it's in the top left (or just head to page 2 for a more zoomed in view).
avant: https://www.avantmeats.com/
ShiokMeats: https://shiokmeats.com/
Umami: https://www.umamimeats.com/
Bluu Biosciences: https://www.bluu.bio/
Cell Ag Tech: https://cellagtech.com/
Clean Research: https://cleanresearch.org/ (they do a lot of stuff, but cultured fish is one of the things listed)
Cultured Decadence: https://www.cultureddecadence.com/
Please note a few of the companies (italicized) are very young, so their websites don't have much info.
I recommend this site for keeping up with which companies are active in the alternative proteins space: https://newprotein.org/. For cultured meat, click "Alternative Protein V 3.0" and it's in the top left (or just head to page 2 for a more zoomed in view).