Sunnies
Category: AI in Cybersecurity
Japanese developer of Privaco, a privacy/password management tool for consumers and enterprises, with AI agent-safe account delegation capabilities. Sunnies was founded in 2024. The company is led by Nozomu Nakazawa. Based in Tokyo, Japan. Team size: 1-10. Total funding raised: $220K. Latest round: Pre-Seed. Key investors include Hyperion Inc. (HYPERION 1号投資事業有限責任組合), Japan Finance Corporation (日本政策金融公庫).
- Founded
- 2024
- Headquarters
- Tokyo, Japan
- Team size
- 1-10
- Total funding
- $220K
Value proposition
Zero-knowledge architecture password manager that lets users safely delegate account access to both humans and AI agents with granular permission controls, without sharing actual passwords.
Products and solutions
Privaco (プライバコ) — consumer password manager with virtual email addresses, passkey support, digital legacy inheritance, Privaco Business — enterprise password/access management for startups and SMEs (¥39,800/yr for up to 10 users), Privaco Account Manager — AI agent-safe account delegation with granular permission controls and audit logging (launched Apr 2026)
Unique value
Japan's first password manager purpose-built for the AI agent era — enabling fine-grained permission delegation to AI agents and contractors via virtual account isolation, while maintaining zero-knowledge encryption and My Number Card authentication.
Target customer
Consumers (B2C); Startups and SMEs (B2B); Enterprises needing AI agent access control
Industries served
Cybersecurity, Identity & Access Management, Fintech, Digital Legacy/Inheritance
Technology advantage
Zero-knowledge architecture; dual-layer encryption (device-side + server-side); passkey (FIDO2/WebAuthn) authentication; virtual email address generation; My Number Card digital authentication integration; Japanese domestic data residency
How they differentiate
Differentiated by: (1) AI agent-native account delegation with per-operation permission controls, (2) Japanese domestic data storage and My Number Card (digital ID) integration, (3) zero-knowledge architecture with dual-layer encryption (device + server), (4) digital legacy inheritance feature, (5) focus on startups/SMEs without dedicated IT staff
Main competitors
1Password (global, Canada), Bitwarden (global, US), Keeper Security (global
Key partnerships
Exploring partnerships with financial institutions, insurance companies, and card companies for digital legacy inheritance services (stated in FIN/SUM 2026 press release)
Major milestones
May 2024: Company founded, Nov 2024: ¥33M Pre-Seed funding + waitlist launch, Aug 2025: Service renamed from "Sunies" to "Privaco", Oct 2025: Privaco browser version launched, Feb 2026: Business plan launched for startups/SMEs, Mar 2026: FIN/SUM 2026 Startup Contest Grand Prize (Nikkei Award), Apr 2026: Privaco Account Manager (AI agent delegation) waitlist launched, Jul 2026: Featured on CyberAgent Capital's Monthly Pitch
Market positioning
Early-stage Japanese startup competing in the password manager market against global incumbents (1Password, Bitwarden, Keeper) by differentiating on AI agent access control, domestic data residency, and My Number Card integration. Targeting Japan's ¥200B identity management market.
Geographic focus
Japan
About Nozomu Nakazawa
Ex-Aflac Life Insurance; Ex-Sony Payment Services (Smart Link Network) corporate sales; Ex-Kyash business development (financial institution alliances, new business launch); Ex-Empay new business planning/executive (including government licensing). Waseda University, Political Science.
Latest news about Sunnies
More AI in Cybersecurity companies
Official website: https://sunnies.co.jp/