# Jim Clark: angel investments and portfolio

> Jim Clark is an angel. 4 investments on record, 1 in the last 12 months, latest Sept 2026. Portfolio, stages, co-investors and team.

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

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

# Jim Clark

Last cheque observed Sep 2026; 4 cheques on record.

Email

Deploying now Angel

Series A Series B Series C

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Deploying now

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

Since the last cheque **50** days **00** hrs **00** min **00** sec

Median round **$875M** Rounds led **1 of 4**

Pitch Jim Clark

## Jim Clark highlights

- 01 1 cheques in the last 12 months
- 02 Mostly Series A and Series B: 50% of its rounds
- 03 Led 1 rounds

## What they do

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

## The record

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

- **2026** 1 round
- **Sept** **[Positron AI](https://millionrounds.com/company/positron-ai)** Series C · Ventureburn **$875M** *Led*
- **2015** 1 round
- **Jun** **[Mic Network](https://millionrounds.com/company/mic-network)** Series B · US **$17M** With 7 others
- **2014** 1 round
- **Apr** **[Mic Network](https://millionrounds.com/company/mic-network)** Series A · US **$10M** With 5 others
- **2010** 1 round
- **Jul** **[Compass Labs](https://millionrounds.com/company/compass-labs)** Venture · US · techcrunch.com **$5.0M** With 4 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

Series A Series B Series C

Median round joined **$875M** the round, not its cheque

Led 1 of 4 rounds **25%**

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

Rounds by stage said on their site

- Series A *1*
- Series B *1*
- Series C *1*
- Venture *1*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [Advancit Capital](https://millionrounds.com/fund/advancit-capital) 2
- [Lerer Hippeau](https://millionrounds.com/fund/lerer-hippeau) 2
- [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) 2
- [Red Swan Ventures](https://millionrounds.com/fund/red-swan-ventures) 2

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## Who they invest alongside

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

[**Advancit Capital** VC firm **2** rounds together](https://millionrounds.com/fund/advancit-capital)[**Lerer Hippeau** VC firm **2** rounds together](https://millionrounds.com/fund/lerer-hippeau)[**Lightspeed Venture Partners** VC firm **2** rounds together](https://millionrounds.com/fund/lightspeed-venture-partners)[**Red Swan Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/red-swan-ventures)

## Recently backed

The latest companies Jim Clark put money into.

[**Positron AI** $875M · Sept 2026](https://millionrounds.com/company/positron-ai)

## Mentioned on podcasts

Episodes that name Jim Clark in their description, not their title.

- [The Twenty Minute VC](https://millionrounds.com/podcasts/20vc) 19 Sept 2026 · 1h 12m 20VC: "Anti-Data Centres is a Chinese Psyop" | How Many Planned Data Centers Will Actually Get Built? | Is Energy AI's Biggest Bottleneck? With Thomas Sohmers, Co-Founder @ Positron Mentions [Atreides Management](https://millionrounds.com/fund/atreides-management)[Jim Clark](https://millionrounds.com/fund/jim-clark)[Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) *+1* Apple PodcastsShow page

## Quick answers about Jim Clark

### What does Jim Clark invest in?

Jim Clark invests most often at Series A and Series B (50% of the rounds on record).

### How active is Jim Clark?

4 investments on record, 1 of them in the last 12 months, and it led 1. The most recent was in Sept 2026.

### What has Jim Clark invested in recently?

Its most recent investments on record: Positron AI (Series C, Sept 2026).

### How big are Jim Clark's cheques?

The median round it joins is $875M.

### Is Jim Clark investing now?

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

### Who does Jim Clark invest alongside?

Most often Advancit Capital (2 rounds together), Lerer Hippeau (2 rounds together) and Lightspeed Venture Partners (2 rounds together).

### What kind of investor is Jim Clark?

Jim Clark is an angel.

### Where does this information on Jim Clark come from?

From 2 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.

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