Onset Cyber

Private

Palo Alto-based cybersecurity startup building AI-native email security for enterprise Microsoft 365 tenants.

Founders Alex Kim

CEO Alex Kim

Company

Founded

2022

Headquarters

Palo Alto, United States

Financials

Total Funding

$98M

Sectors

Cybersecurity Enterprise Software

onsetcyber.com

Funding History

3 rounds

Series B Aug 19, 2026

$62M

Andreessen Horowitz (Lead) Accel Ten Eleven Ventures

Series A Dec 20, 2024

$28M

Accel (Lead) Ten Eleven Ventures Boldstart Ventures

Seed May 5, 2023

$8M

Ten Eleven Ventures (Lead) Accel

Funding data is compiled from multiple independent sources including company announcements, press coverage, and regulatory filings. While we strive for accuracy, amounts and dates may reflect reported figures at time of announcement.