# Justin Rosenstein: angel investments and portfolio

> Justin Rosenstein is an angel based in United States. 4 investments on record, 1 in the last 12 months, latest Mar 2026.

Source: https://millionrounds.com/fund/justin-rosenstein (Millionrounds; every figure on the page links to its filing or article)

United States · [Investor](https://millionrounds.com/investors)

# Justin Rosenstein

Last cheque observed Mar 2026; 4 cheques on record.

Email

Angel Deploying now

Seed Series A

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Deploying now

**100%** of best year **1** **cheques in 12 months**, 4 on record

Since the last cheque **225** days **00** hrs **00** min **00** sec

Median round **$21M** Rounds led **0 of 4**

Pitch Justin Rosenstein

## Justin Rosenstein highlights

- 01 1 cheques in the last 12 months
- 02 Mostly Seed and Series A: 100% of its rounds

## What they do

- **Type:** Angel (from a list, unverified)
- **Cheque size:** Not stated
- **Based in:** United States
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **4 appearances**

- **2026** 1 round
- **Mar** **[Littlebird](https://millionrounds.com/company/littlebird)** Seed · US · TechCrunch **$11M** With 6 others
- **2018** 1 round
- **Dec** **[Good Money](https://millionrounds.com/company/good-money)** Series A · US · FinSMEs **$30M** With 10 others
- **2017** 1 round
- **Jun** **[Cabin](https://millionrounds.com/company/cabin)** Seed · US · FinSMEs **$3.0M** With 6 others
- **2016** 1 round
- **Nov** **[Gusto](https://millionrounds.com/company/gusto)** **$90M** With 103 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## The cheque

Seed Series A

Median round joined **$21M** the round, not its cheque

Led 0 of 4 rounds **0%**

- **Sole investor:** Never alone
- **Last cheque:** Mar 2026

Rounds by stage said on their site

- Seed *2*
- Series A *1*

Cheques by month Led Joined

Dec 2023 Nov 2026

Often in the room with

- [Troy Carter](https://millionrounds.com/fund/troy-carter) 2

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## Who they invest alongside

The investors most often in the same rounds as Justin Rosenstein. A count of rooms they were both in, not a relationship either has claimed.

[**Troy Carter** VC firm **2** rounds together](https://millionrounds.com/fund/troy-carter)

## Recently backed

The latest companies Justin Rosenstein put money into.

[**Littlebird** $11M · Mar 2026](https://millionrounds.com/company/littlebird)[**Good Money** $30M · Dec 2018](https://millionrounds.com/company/good-money)[**Gusto** $90M · Nov 2016](https://millionrounds.com/company/gusto)

## Quick answers about Justin Rosenstein

### What does Justin Rosenstein invest in?

Justin Rosenstein invests most often at Seed and Series A (100% of the rounds on record).

### How active is Justin Rosenstein?

4 investments on record, 1 of them in the last 12 months. The most recent was in Mar 2026.

### What has Justin Rosenstein invested in recently?

Its most recent investments on record: Littlebird (Seed, Mar 2026), Good Money (Series A, Dec 2018) and Cabin (Seed, Jun 2017).

### How big are Justin Rosenstein's cheques?

The median round it joins is $21M.

### Is Justin Rosenstein investing now?

Yes: it is actively investing, with 1 investments in the last 12 months.

### Who does Justin Rosenstein invest alongside?

Most often Troy Carter (2 rounds together).

### What kind of investor is Justin Rosenstein?

Justin Rosenstein is an angel based in United States.

### Where does this information on Justin Rosenstein come from?

From 4 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.

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Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=justin-rosenstein) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=justin-rosenstein)