# Phosphor Capital: portfolio, investments and team

> Phosphor Capital is a vc firm based in United States. 1 investment on record, 1 in the last 12 months, latest Mar 2026.

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

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

# Phosphor Capital

Last cheque observed Mar 2026; 1 cheques on record.

Email

VC firm Deploying now New fund $34M, Jul 2025

Pre-seed Seed Venture Capital & Private Equity

Follow Phosphor Capital and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2Fphosphor-capital)

Deploying now

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

Since the last cheque **240** days **00** hrs **00** min **00** sec

Median round **$6.0M** Rounds led **0 of 1**

Pitch Phosphor Capital

## Phosphor Capital highlights

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

## What they do

> Phosphor Capital invests in the top founders in each Y Combinator batch. From their own website

- **Type:** VC firm
- **Cheque size:** Not stated
- **Stages:** Pre-seed Seed
- **Sectors:** Venture Capital & Private Equity
- **Based in:** San Francisco, United States
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **1 appearances**

- **2026** 1 round
- **Mar** **[AgentMail](https://millionrounds.com/company/agentmail)** Seed · US · TechCrunch **$6.0M** With 6 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.

## What they claim to have backed

From their own portfolio page (on their website)

**21** of 29 we have independently watched raise

[Archil](https://millionrounds.com/company/archil)[Circleback](https://millionrounds.com/company/circleback)[Corgi](https://millionrounds.com/company/corgi)[Crustdata](https://millionrounds.com/company/crustdata)[Deepnight](https://millionrounds.com/company/deepnight)[Didit](https://millionrounds.com/company/didit)[Domu](https://millionrounds.com/company/domu)[Fazeshift](https://millionrounds.com/company/fazeshift)[Greenboard](https://millionrounds.com/company/greenboard)[Gumloop](https://millionrounds.com/company/gumloop)[Henry](https://millionrounds.com/company/henry)[Mastra](https://millionrounds.com/company/mastra)[Mdhub](https://millionrounds.com/company/mdhub)[Momentic](https://millionrounds.com/company/momentic)[Parahelp](https://millionrounds.com/company/parahelp)[Phonely](https://millionrounds.com/company/phonely)[Pointone](https://millionrounds.com/company/pointone)[Reducto](https://millionrounds.com/company/reducto)[Same](https://millionrounds.com/company/same)[Solidroad](https://millionrounds.com/company/solidroad)[Starcloud](https://millionrounds.com/company/starcloud) Andonlabs Diode Harperinsure Shopgarage Sygaldry Sync Tamarind Usebrainbase

Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.

New fund on file

**$34M**

raised in Jul 2025

From its SEC filing, not a journalist: a firm that has just raised has money to deploy.

## The cheque

Pre-seed Seed

Median round joined **$6.0M** the round, not its cheque

Led 0 of 1 rounds **0%**

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

Rounds by stage said on their site

- Seed said *1*
- Pre-seed said *-*

Cheques by month Led Joined

Dec 2023 Nov 2026

**Pitching Phosphor Capital?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

Add to your CRM *→*

## Recently backed

The latest companies Phosphor Capital put money into.

[**AgentMail** $6.0M · Mar 2026](https://millionrounds.com/company/agentmail)

## Quick answers about Phosphor Capital

### What does Phosphor Capital invest in?

Phosphor Capital invests most often at Seed (100% of the rounds on record), in sectors such as Venture Capital & Private Equity.

### How active is Phosphor Capital?

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

### What has Phosphor Capital invested in recently?

Its most recent investments on record: AgentMail (Seed, Mar 2026).

### How big are Phosphor Capital's cheques?

The median round it joins is $6.0M.

### Is Phosphor Capital investing now?

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

### What kind of investor is Phosphor Capital?

Phosphor Capital is a VC firm based in San Francisco, United States.

### Has Phosphor Capital raised a new fund?

Its latest fund filing with the SEC was in Jul 2025, reporting $34M raised.

### Where does this information on Phosphor Capital come from?

From 1 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.

## Raising now?

Find the investors who back rounds like yours, and keep every conversation on one fundraising board.

Find similar investorsOpen your CRM

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=phosphor-capital) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=phosphor-capital)
