If you sift through https://www.sec.gov/edgar/search/#/q=SVB&dateRange=custom&ca..., you can get a decent sense for which companies had loan, banking, or other arrangements with SVB.

(There's a bit of noise from companies that have "SVB" in their name, and some entries from SVB itself. Also, many of these recent filings simply say something to the effect of "we don't use SVB and aren't materially affected". Still, someone with more time / inclination than myself could crawl / process that to build a much larger database here...)