The Secretary of State’s Office currently has four certified RAVBM systems:

Five Cedars Group Alternate Format Ballot v5.2.1,

Democracy Live Secure Select 1.2.2,

Dominion Voting Systems Dominion ImageCast Remote 5.10A, and

Los Angeles County Voting Solution for All People Interactive Sample Ballot 2.5

https://www.sos.ca.gov/elections/voting-resources/remote-accessible-vote-mail