# Jeffrey Rosen, Venture Partner at Pioneer Fund

> Jeffrey Rosen, Venture Partner at Pioneer Fund. 1 investment on record. The rounds they were named in and the filings that name them, each with its source.

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

Surrey, US · Partner

# Jeffrey Rosen

Venture Partner at Pioneer Fund[See the firm →](https://millionrounds.com/fund/pioneer-fund)

Latest rounds

- **Visor** Series A · $4.7M Aug 2018

Backs *Gaming* *Enterprise Software* *Fintech*

Profile summary

- **Rounds named:** 1 last Aug 2018
- **Filings:** 8 with regulators

What this record rests on

- ✓ **Named in rounds** 1 round name them
- ✓ **On filings** 8 filings with a regulator
- ✓ **Linked to a firm** At Pioneer Fund
- **Claimed** Not claimed yet

Titles come from filings their firm signed.

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

## The firm

[**Pioneer Fund** VC firm · US **2** cheques in 12 months **4** all time **0** led deploying](https://millionrounds.com/fund/pioneer-fund)

## Rounds they were named in

- **Rounds:** 1
- **Led:** 0
- **Disclosed:** $4.7M
- **Active:** 2018

2018

- [Visor](https://millionrounds.com/company/visor) *Series A* **$4.7M** *US* Aug 2018 Joined · +8 investors

By stage

- Series A **1**

What they backed

Gaming **1** Enterprise Software **1** Fintech **1**

Alongside

- [Accel/ Y Combinator *1*](https://millionrounds.com/fund/accel-y-combinator)
- [Aditya Agarwal *1*](https://millionrounds.com/fund/aditya-agarwal)
- [Afore *1*](https://millionrounds.com/fund/afore-capital)
- John Graham *1*
- [NextGen *1*](https://millionrounds.com/fund/future100)
- [Paul Buchheit *1*](https://millionrounds.com/fund/paul-buchheit)
- [Paul Levine *1*](https://millionrounds.com/fund/sapphire-ventures)
- [Ruchi Sanghvi *1*](https://millionrounds.com/fund/ruchi-sanghvi)

Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names.

## Companies they are listed as backing

Portfolio

- [Awesomic](https://millionrounds.com/startup/awesomic)
- [Mayhem](https://millionrounds.com/startup/mayhem)

## Where they are named on record

Filings

- SEC Form D · Venture Capital fund **[Broom](https://millionrounds.com/fund/broom)** Managing Partner of General Partner since 2024
- SEC Form D · Venture Capital fund **[Broom Ventures](https://millionrounds.com/fund/broom-ventures)** Managing Partner of General Partner since 2023
- SEC Form D · Other investment fund **Fathom Ventures Fund I, LP** Manager since 2020
- SEC Form D · Company raising **Chance UCF, LLC** Executive Officer since 2016
- SEC Form D · Company raising **STUDENT HOUSING SOUTHEAST, LLC** Executive Officer since 2016
- SEC Form D · Company raising **ACADIASOFT INC** Director on 2 filings · since 2015
- SEC Form D · Company raising **TREASUREBEE, LLC** Executive Officer, Director since 2014
- SEC Form D · Company raising **Humble Bundle, Inc.** Executive Officer, Director since 2011

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

## Also at Pioneer Fund

- [**Argyris Zymnis** Chief Technology Officer *3 rounds*](https://millionrounds.com/person/argyris-zymnis)
- [**Idris Mokhtarzada** VP of AI *2 rounds*](https://millionrounds.com/person/idris-mokhtarzada)
- [**Andrew D'Souza** Founder / Mad Scientist *1 round*](https://millionrounds.com/person/andrew-d-souza)
- [**Jon Armstrong** Co-Founder and CSO *1 round*](https://millionrounds.com/person/jon-armstrong)
- [**Laks Srini** Building New Products *1 round*](https://millionrounds.com/person/laks-srini)
- [**Liron Shapira** Cofounder & CEO *1 round*](https://millionrounds.com/person/liron-shapira)
- [**Adam Gothelf** Venture Partner *0 rounds*](https://millionrounds.com/person/adam-gothelf)
- [**Adam Kocoloski** Distinguished Engineer *0 rounds*](https://millionrounds.com/person/adam-kocoloski)

## Find people like Jeffrey

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