What are some nice tech companies based in Southern California (SoCal)?

I’d need more information about what “niche” means, but BuiltInLA has a pretty good track record of listing all the LA startups:

[1] https://www.builtinla.com

I used to work at Pex in LA. They do fingerprint matching for audio and video at ridiculous scales. Super cool company!

[2] https://pex.com

Also, I’m hosting a small tech conference in SoCal this August! I’m expecting to attract tech people from LA, San Diego, and the Inland Empire. If you can’t make it, send me at email at taylor@outland.sh and I’ll see if anybody is hiring for you.

[3] https://outland.sh

Anduril