Open-source
legal templates

Open-source
legal templates

A new set of standards for startup advisory and angel investment in Japan.

By open-sourcing legal templates for startup advisory and angel investment, we're removing one of the barriers to early-stage startup development in Japan.

Turn expertise into equity.

Turn expertise into equity.

Equity-based Advisory Agreement

This legally certified Advisory Agreement is for operators who want to enter a long-term, equity-based partnership with a startup in Japan.

Equity + Cash compensation model

Replaces one-off contributions with long-term incentives tied to the startup’s growth.

Structured 2-year vesting with clear KPIs

Ensures equity is earned through specific contributions such as making introductions, hiring, or fundraising.

Standardized scope and time guidelines

Sets upfront expectations around workload and equity range for faster, smoother onboarding.

Fully align founders and investors

Fully align founders and investors

Shareholder Agreement

This legally certified Shareholder Agreement clarifies the positions of co-founders and shareholders, bringing global-standard vesting and governance to angel investment in Japan.

Standard 4-year vesting for founder shares

Protects the company by reclaiming unearned equity if a founder leaves early.

Alignment between founders and angel investors

Places all shareholders under a single contract to prevent misunderstandings between founders and investors.

Clear governance and rights clauses

Establishes clear rules and processes for voting, information sharing, IP ownership, and dispute resolution.

Move quickly with clarity. 

Move quickly with clarity. 

Simple Equity Agreement

This legally certified Simple Equity Agreement is for founders and early angel investors in Japan who want to move quickly with a clear set of terms.

Straightforward equity issuance

Simplifies terms so early investors can move quickly without complex negotiations and legal costs.

Global-standard terms

Eliminates the complex conversion and valuation provisions that are commonplace in Japan.

Templates for basic provisions 

Enables fast, upfront agreement on valuation, priority rights, and information disclosure.

Our open-source Agreements are produced in consultation with reputable law firms in Japan.

Apply to join

Apply to join

Apply to join

Apply to join

Serendia is a community of operators and angel investors based in Japan. As a community and forum, we help create the serendipitous connections that give founders access to the expertise and funding they need to grow.

Explore

Contact

Become a member

Pitch your startup

Designed by

© Copyright Serendia 2025

Serendia is a community of operators and angel investors based in Japan. As a community and forum, we help create the serendipitous connections that give founders access to the expertise and funding they need to grow.

Explore

Contact

Become a member

Pitch your startup

Designed by

© Copyright Serendia 2025

Serendia is a community of operators and angel investors based in Japan. As a community and forum, we help create the serendipitous connections that give founders access to the expertise and funding they need to grow.

Explore

Contact

Become a member

Pitch your startup

Designed by

© Copyright Serendia 2025