# Cyfrin

> Cyfrin is a VC fund in Boston backing Internet and Blockchain. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Boston, United States
- Total investments: 1
- Last investment: Mar 2024
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/company/cyfrin
- Website: https://x.com/CyfrinAudits

Cyfrin is a company that specializes in smart contract security auditing. Their primary focus is on solidity, vyper, and EVM-based security. In addition to their auditing services, Cyfrin also provides education for blockchain developers, aiming to bring DeFi and smart contracts to a wider audience. They offer a range of resources for web3developers, including tutorials that have been widely recognized for their value in the developer community. Cyfrin also provides a platform for booking smart contract audits.

## Contacts

5 contacts available for Cyfrin. Shizune tracks 1 team members at Cyfrin. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/cyfrin?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Internet | 1 | 100% |
| Blockchain | 1 | 100% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Alex Roan | Co-Founder | 0 | — |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Sablier | Sablier provides a token distribution protocol used by DAOs and businesses for vesting, payroll, airdrops, and more. The linear stream is our flagship payment model, which distributes assets on a continuous, by-the-second basis.The way it works is that the sender of a payment stream first deposits a specific amount of ERC-20 tokens in a contract.Then, the contract progressively allocates the funds to the recipient, who can access them as they become available over time. The payment rate is influenced by various factors, including the start and end times, as well as the total amount of tokens deposited. | $4.5M | Seed | Mar 22, 2024 |  |

1 of 1 investments shown.

## Co-investors
- [a16z crypto](https://shizune.co/investors/profile/a16z-crypto) — VC Fund, 1 deal together
- [A.Capital Ventures](https://shizune.co/investors/profile/capital-partners-l-p) — VC Fund, 1 deal together
- DCV capital — VC Fund, 1 deal together
- [Fenbushi Capital](https://shizune.co/investors/profile/fenbushi-capital) — VC Fund, 1 deal together
- [Founderheads,](https://shizune.co/investors/profile/founderheads) — VC Fund, 1 deal together
- [GD1 (Global From Day One)](https://shizune.co/investors/profile/global-from-day-one-fund-ii) — VC Fund, 1 deal together

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### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Cyfrin invest in?

Cyfrin invests primarily in Internet and Blockchain startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Cyfrin?

Public channels for Cyfrin include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Cyfrin?

The team at Cyfrin includes Alex Roan (Co-Founder). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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