# Tamarack Global: portfolio, investments and team

> Tamarack Global is a vc firm based in United States. 7 investments on record, 5 in the last 12 months, latest May 2026.

Source: https://millionrounds.com/fund/tamarack-global-2 (Millionrounds; every figure on the page links to its filing or article)

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

# Tamarack Global

Last cheque observed May 2026; 7 cheques on record.

Email

VC firm Deploying now New fund $6.2M, Sept 2026

Seed Series A Series B Defense Tech Natsec Energy

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Deploying now

**83%** of best year **5** **cheques in 12 months**, 7 on record

Since the last cheque **168** days **00** hrs **00** min **00** sec

Median round **$150M** Rounds led **1 of 7** Mostly in **United States, 86%**

Pitch Tamarack Global

Another investor of this name exists, and we could not establish from the rounds which of them the press meant. Treat the record below as possibly belonging to either. [Tell us which](https://millionrounds.com/corrections?slug=tamarack-global-2) if you know.

## Tamarack Global highlights

- 01 5 cheques in the last 12 months
- 02 Mostly Series A and Growth: 57% of its rounds
- 03 Led 1 rounds

## What they do

> Tamarack Global is a venture capital firm that invests in exceptional founders and companies From their own website

- **Type:** VC firm (from a list, unverified)
- **Cheque size:** Not stated
- **Stages:** Seed Series A Series B Growth
- **Sectors:** Defense Tech Natsec Energy
- **Based in:** Greenwich, United States
- **Cold pitches:** Not accepted

## The record

Every round we can evidence, newest first **7 appearances**

- **2026** 4 rounds
- **May** **[Hark](https://millionrounds.com/company/hark)** Series A · US · TechCrunch **$700M** With 11 others
- **Apr** **[Rilian](https://millionrounds.com/company/rilian)** Seed · US · TechStartups **$18M** *Led*
- **Apr** **[Blue Energy](https://millionrounds.com/company/blue-energy)** Growth · US · TechCrunch **$380M** With 3 others
- **Mar** **[Isembard](https://millionrounds.com/company/isembard)** Series A · GB · Ventureburn **$50M** With 7 others
- **2025** 2 rounds
- **Dec** **[Antithesis](https://millionrounds.com/company/antithesis)** Series A · US · Ventureburn **$105M** With 9 others
- **Sept** **[Figure](https://millionrounds.com/company/figure)** Series C · US · Crunchbase News **$1.0B** With 14 others
- **2024** 1 round
- **Oct** **[Impulse Space](https://millionrounds.com/company/impulse-space)** Series B · US · TechCrunch **$150M** With 14 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 team

Named by the firm itself, on a filing, its Form ADV or its company registration **8 named**

CJ **Christine John Fletcher** Director i Filing they signed

GJ **Georgia John Prinsloo** Director i Filing they signed

IJ **Isatou John Sey** Director i Filing they signed

JB **James Bainbridge Lee** Manager of Tamarack Global, General Partner, LLC, General Partner of Tamarack Global Opportunities II, LP. i Filing they signed

JW **John Walker McCormick** Manager of Tamarack Global, General Partner, LLC, General Partner of Tamarack Global Opportunities II, LP. i Filing they signed

JJ **Justin John Ferayorni** Managing member of Tamarack Capital Management, LLC, its general partner i Filing they signed

LJ **Leon John Rhule** Director i Filing they signed

SJ **Sabrina John Foster** Director i Filing they signed

We also hold **11** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

## What the register says

From the firm's own filings with the SEC, which it must file accurately by law

**$398M** gross assets of its funds Oct 2026

**Exempt** reporting adviser venture or small private funds

- **Legal name:** Tamarack Global Manager LLC
- **SEC number:** CRD 314862

New fund on file

**$6.2M**

raised in Sept 2026

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

## The cheque

Seed Series A Series B

Median round joined **$150M** the round, not its cheque

Led 1 of 7 rounds **14%**

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

Rounds by stage said on their site

- Series A said *3*
- Growth said *1*
- Seed said *1*
- Series B said *1*
- Series C *1*

Cheques by month Led Joined

Dec 2023 Nov 2026

Often in the room with

- [Align Ventures](https://millionrounds.com/fund/align-ventures) 2
- [Intel Capital](https://millionrounds.com/fund/intel-capital) 2
- [NVIDIA](https://millionrounds.com/fund/nvidia) 2
- [Parkway Venture Capital](https://millionrounds.com/fund/parkway-venture-capital) 2
- [Qualcomm Ventures](https://millionrounds.com/fund/qualcomm-ventures) 2
- [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) 2

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

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## Who they invest alongside

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

[**Align Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/align-ventures)[**Intel Capital** Corporate VC **2** rounds together](https://millionrounds.com/fund/intel-capital)[**NVIDIA** Company **2** rounds together](https://millionrounds.com/fund/nvidia)[**Parkway Venture Capital** VC firm **2** rounds together](https://millionrounds.com/fund/parkway-venture-capital)[**Qualcomm Ventures** Corporate VC **2** rounds together](https://millionrounds.com/fund/qualcomm-ventures)[**Salesforce Ventures** Corporate VC **2** rounds together](https://millionrounds.com/fund/salesforce-ventures)

## Recently backed

The latest companies Tamarack Global put money into.

[**Hark** $700M · May 2026](https://millionrounds.com/company/hark)[**Blue Energy** $380M · Apr 2026](https://millionrounds.com/company/blue-energy)[**Isembard** $50M · Mar 2026](https://millionrounds.com/company/isembard)[**Antithesis** $105M · Dec 2025](https://millionrounds.com/company/antithesis)[**Figure** $1.0B · Sept 2025](https://millionrounds.com/company/figure)[**Impulse Space** $150M · Oct 2024](https://millionrounds.com/company/impulse-space)

## Mentioned on podcasts

Episodes that name Tamarack Global in their description, not their title.

- [How I Invest](https://millionrounds.com/podcasts/how-i-invest) 17 Dec 2025 · 38 min E264: The Asymmetric Edge: Generating Alpha in Venture Mentions [Tamarack Global](https://millionrounds.com/fund/tamarack-global-2)[Jamie Lee](https://millionrounds.com/person/jamie-lee) Apple PodcastsShow page

## Quick answers about Tamarack Global

### What does Tamarack Global invest in?

Tamarack Global invests most often at Series A and Growth (57% of the rounds on record), in sectors such as Defense Tech, Natsec and Energy.

### How active is Tamarack Global?

7 investments on record, 5 of them in the last 12 months, and it led 1. The most recent was in May 2026.

### What has Tamarack Global invested in recently?

Its most recent investments on record: Hark (Series A, May 2026), Rilian (Seed, Apr 2026) and Blue Energy (Growth, Apr 2026).

### How big are Tamarack Global's cheques?

The median round it joins is $150M.

### Does Tamarack Global lead rounds?

Sometimes: it led 1 of its 7 investments on record (14%).

### Where does Tamarack Global invest?

Most of the companies it backs are in the United States (86%) and the United Kingdom (14%).

### Is Tamarack Global investing now?

Yes: it is actively investing, with 5 investments in the last 12 months.

### Who does Tamarack Global invest alongside?

Most often Align Ventures (2 rounds together), Intel Capital (2 rounds together) and NVIDIA (2 rounds together).

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