Mixus
“Can email + attorney-in-the-loop become the durable trust layer that makes AI agents usable for high-stakes legal work?”
Founded2025
HQSan Francisco, CA, United States
FoundersShai Magzimof, Elliot Katz
Total raised$2.6M
Latest roundSeed
IndustryVertical SaaS / Legal
The story
Mixus was founded in 2025 by the Phantom Auto team, applying the 'remote human supervision' pattern from autonomous vehicles to AI agents. Initially positioned as a horizontal email-based AI agent platform (per July 2025 TechCrunch coverage), the company has narrowed its 2026 go-to-market to legal — specifically AI redlining, deal modeling, and venture financing workflows for Am Law firms — with attorney-in-the-loop approval as the core trust primitive.
Product timeline
2025
Mixus founded by Shai Magzimof and Elliot Katz (both previously co-founders of Phantom Auto)· founding
2025
TechCrunch feature: email-native AI agent platform with human-in-the-loop review· launch
2026
Achieved SOC 2 Type II certification (February 2026); positioning refined to legal AI agents for Am Law 10 firms· pivot
The stack
0 layers disclosed in Mixus’s embedded-finance stack
Accounting gap: none