# Charles River: portfolio, investments and team

> Charles River is a private equity. 9 investments on record, latest May 2019. Portfolio, stages, co-investors and team.

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

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

# Charles River

Last cheque observed May 2019. Silence since then is not evidence of inactivity: our sources miss unannounced rounds.

Quiet New fund $290M, May 2016 Private equity

Seed Series C Series A

Cheques on record

**0%** of best year **0** **cheques in 12 months**, 9 on record

Since the last cheque **2733** days **00** hrs **00** min **00** sec

Median round **$30M** Rounds led **0 of 9** Mostly in **United States, 89%**

Pitch Charles River

## Charles River highlights

- 01 9 rounds on record
- 02 Mostly Seed and Series C: 57% of its rounds

## What they do

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

## The record

Every round we can evidence, newest first **9 appearances**

- **2019** 3 rounds
- **May** **[InCountry](https://millionrounds.com/company/incountry)** Seed · US · FinSMEs **$7.0M** With 7 others
- **Apr** **[CloudGenix](https://millionrounds.com/company/cloudgenix)** Series C · US · FinSMEs **$65M** With 4 others
- **Mar** **[Kong](https://millionrounds.com/company/kong)** Series C · US · TechCrunch **$43M** With 4 others
- **2018** 4 rounds
- **Oct** **Airobotics** AZ · TechCrunch **$30M** With 2 others
- **May** **[SignalFx](https://millionrounds.com/company/signalfx)** Series D · US · FinSMEs **$45M** With 1 other
- **Feb** **[Slab](https://millionrounds.com/company/slab)** Seed · US · TechCrunch **$2.2M** With 3 others
- **Jan** **[Voyage](https://millionrounds.com/company/voyage)** US · FinSMEs **$3.0M** With 5 others
- **2017** 2 rounds
- **May** **[Tophatter](https://millionrounds.com/company/tophatter)** Series B · US · Fortune **$21M** With 2 others
- **Mar** **[Freenome](https://millionrounds.com/company/freenome)** Series A · US · FinSMEs **$65M** With 7 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 **7 named**

BH **Brian H. Kavoogian** Executive Officer of Charles River Realty Investors, LLC, the Promoter i Filing they signed

BJ **Bryan J. Clancy** Executive Officer of Charles River Realty Investors, LLC, the Promoter i Filing they signed

EL **Edward L. Marsteiner, II** Executive Officer and Director of National Development, an affiliate of Charles River Realty Investors, LLC, the Promoter i Filing they signed

JJ **John J. O'Neil, III** Executive Officer and Director of National Development, an affiliate of Charles River Realty Investors, LLC, the Promoter i Filing they signed

SA **Stephen A. Kinsella** Executive Officer and Director of National Development, an affiliate of Charles River Realty Investors, LLC, the Promoter i Filing they signed

TR **Theodore R. Tye** Executive Officer and Director of National Development, an affiliate of Charles River Realty Investors, LLC, the Promoter i Filing they signed

TM **Thomas M. Alperin** Executive Officer and Director of National Development, an affiliate of Charles River Realty Investors, LLC, the Promoter i Filing they signed

We also hold **7** 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.

New fund on file

**$290M**

raised in May 2016

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

## The cheque

Seed Series C Series A

Median round joined **$30M** the round, not its cheque

Led 0 of 9 rounds **0%**

- **Sole investor:** Never alone
- **Last cheque:** May 2019

Rounds by stage said on their site

- Seed *2*
- Series C *2*
- Series A *1*
- Series B *1*
- Series D *1*

Cheques by year Led Joined

2017 2019

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## Recently backed

The latest companies Charles River put money into.

[**InCountry** $7.0M · May 2019](https://millionrounds.com/company/incountry)[**Kong** $43M · Mar 2019](https://millionrounds.com/company/kong)[**Freenome** $65M · Mar 2017](https://millionrounds.com/company/freenome)

## Mentioned on podcasts

Episodes that name Charles River in their description, not their title.

- [The Healthtech Podcast](https://millionrounds.com/podcasts/healthtech-podcast) 15 Jul 2026 · 52 min #455: Is animal testing in drug development on its way out? Mentions [Charles River](https://millionrounds.com/fund/charles-river) Apple PodcastsShow page
- [The Biotech Startups Podcast](https://millionrounds.com/podcasts/biotech-startups) 8 Jun 2026 · 28 min 🧬 Pharma's Coordination Tax & the 2 Paths That Could Actually Disrupt It | Alex Telford (3/4) Mentions [Charles River](https://millionrounds.com/fund/charles-river) Apple PodcastsShow page
- [The Biotech Startups Podcast](https://millionrounds.com/podcasts/biotech-startups) 22 Dec 2025 · 34 min 🧬 The "Respiration Model": Balancing Debate & Execution | Jacob Glanville Re-Release (Part 3/4) Mentions [Charles River](https://millionrounds.com/fund/charles-river) Apple PodcastsShow page
- [The Biotech Startups Podcast](https://millionrounds.com/podcasts/biotech-startups) 27 Jun 2024 · 38 min 🧬 Mark Kotter - bit.bio - Part 4 | Democratizing Access to Cells & the Evolution of bit.bio | A Financial Journey from Angel Investment to IPO | Building a Tech Bio Platform & Mark’s 10-Year Vision With [Mark Kotter](https://millionrounds.com/person/mark-kotter) Mentions [Charles River](https://millionrounds.com/fund/charles-river) Apple PodcastsShow page
- [The Biotech Startups Podcast](https://millionrounds.com/podcasts/biotech-startups) 24 Jun 2024 · 25 min 🧬 Mark Kotter - bit.bio - Part 3 | Success in Academia vs. Industry | Vital Things All Founders Should Know | The Importance of Company Culture | bit.bio & the Operating System of Life With [Mark Kotter](https://millionrounds.com/person/mark-kotter) Mentions [Charles River](https://millionrounds.com/fund/charles-river) Apple PodcastsShow page

## Quick answers about Charles River

### What does Charles River invest in?

Charles River invests most often at Seed and Series C (57% of the rounds on record).

### How active is Charles River?

9 investments on record, 0 of them in the last 12 months. The most recent was in May 2019.

### What has Charles River invested in recently?

Its most recent investments on record: InCountry (Seed, May 2019), CloudGenix (Series C, Apr 2019) and Kong (Series C, Mar 2019).

### How big are Charles River's cheques?

The median round it joins is $30M.

### Does Charles River lead rounds?

Rarely, if at all: none of its 9 investments on record names it as the lead.

### Where does Charles River invest?

Most of the companies it backs are in the United States (89%) and Azerbaijan (11%).

### Is Charles River investing now?

No investments in the last 12 months; the latest was in May 2019.

### What kind of investor is Charles River?

Charles River is a private equity firm.

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