# Sean Judge, Managing Member

> Sean Judge, Managing Member. The rounds they were named in and the filings that name them, each with its source.

Source: https://millionrounds.com/person/sean-judge (Millionrounds; every figure on the page links to its filing or article)

Boston, US · Partner

# Sean Judge

Managing Member i at [Castle Island Ventures](https://millionrounds.com/fund/castle-island-ventures)

Profile summary

- **Rounds named:** - none observed
- **Filings:** 4 with regulators

What this record rests on

- **Named in rounds** No round names them yet
- ✓ **On filings** 4 filings with a regulator
- ✓ **Linked to a firm** At Castle Island Ventures
- **Claimed** Not claimed yet

Titles come from filings their firm signed.

[Correct or remove](https://millionrounds.com/corrections?person=sean-judge)[Is this you? Claim it](https://millionrounds.com/claim?person=sean-judge)

## The firm

[**Castle Island Ventures** VC firm · US **15** cheques in 12 months **78** all time **2** led deploying](https://millionrounds.com/fund/castle-island-ventures)

## Companies they are listed as backing

Portfolio

- [Coin Metrics](https://millionrounds.com/company/coin-metrics)

## Where they are named on record

Filings

- SEC Form D · Venture Capital fund **[Castle Island Ventures](https://millionrounds.com/fund/castle-island-ventures)** Managing Member of the General Partner of the Issuer on 2 filings · since 2025
- SEC Form D · Company raising **Felix Technologies Inc.** Director on 2 filings · since 2024
- SEC Form D · Company raising **TYB, Inc.** Director on 2 filings · since 2021
- SEC Form D · Company raising **Interra Energy Services Ltd.** Director since 2016

Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date.

## Also at Castle Island Ventures

- [**Andrew Brochu** Controller *0 rounds*](https://millionrounds.com/person/andrew-brochu)
- [**Henry Harris** Investor *0 rounds*](https://millionrounds.com/person/henry-harris)
- [**Hunter Merghart** Venture Partner *0 rounds*](https://millionrounds.com/person/hunter-merghart)
- [**Matt Walsh** Team *0 rounds*](https://millionrounds.com/person/matt-walsh)
- [**Matthew Walsh** Managing Member *0 rounds*](https://millionrounds.com/person/matthew-walsh-3)
- [**Nic Carter** Partner *0 rounds*](https://millionrounds.com/person/nic-carter)
- [**Ria Bhutoria** Venture Partner *0 rounds*](https://millionrounds.com/person/ria-bhutoria)

## Find people like Sean

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