ABOUT THE FIRM

Built on conviction,
Driven by outcomes.

Northbrook Fund was founded on a simple belief: the best returns come from deep partnership, not portfolio diversification. We are a concentrated, operationally engaged investment firm and we intend to stay that way.

$380M

ASSETS UNDER MANAGEMENT

$380M

ASSETS UNDER MANAGEMENT

32

PORTFOLIO COMPANIES

32

PORTFOLIO COMPANIES

12

YEARS OF OPERATION

12

YEARS OF OPERATION

A professional woman with dark, wavy hair, wearing a black suit and shirt, poses against a neutral background.
A professional woman with dark, wavy hair, wearing a black suit and shirt, poses against a neutral background.

WHAT WE STAND FOR

Three principles guide every decision.

These aren't values written on a wall. They're the operating system behind every investment decision, every board meeting, and every conversation we have with founders.

01

CONCENTRATION

We believe in knowing less, more deeply. Our portfolio is deliberately small so each company receives the full weight of our attention, network, and resources. We pass on good opportunities so we can be fully present for the exceptional ones.

01

CONCENTRATION

We believe in knowing less, more deeply. Our portfolio is deliberately small so each company receives the full weight of our attention, network, and resources. We pass on good opportunities so we can be fully present for the exceptional ones.

02

ALIGNMENT

We co-invest alongside our founders. Our incentives are structured to reward long-term outcomes, not short-term markups. We don't celebrate paper valuations we celebrate the moment founders achieve what they set out to build. We win when you win.

02

ALIGNMENT

We co-invest alongside our founders. Our incentives are structured to reward long-term outcomes, not short-term markups. We don't celebrate paper valuations we celebrate the moment founders achieve what they set out to build. We win when you win.

03

TRANSPARENCY

No hidden agendas. No conflicting interests. We tell our founders what we think, share what we know, and hold ourselves accountable to the same standards we expect from our partners. Difficult conversations early prevent failed partnerships later.

03

TRANSPARENCY

No hidden agendas. No conflicting interests. We tell our founders what we think, share what we know, and hold ourselves accountable to the same standards we expect from our partners. Difficult conversations early prevent failed partnerships later.

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OUR STORY

A firm built to
do this right.

Northbrook Fund was established in 2014 with a thesis that ran counter to the prevailing wisdom: that more deals meant better returns. We believed the opposite. A smaller, more deliberate portfolio backed by genuine operational engagement would outperform a spray-and-pray approach over any meaningful time horizon.

A decade later, our portfolio companies have collectively reached $2.1B in combined valuation, with zero failures across three funds. That record is not an accident. It is the direct result of saying no to almost everything, and yes with full conviction.

THE TEAM

People who've built, operated, and invested.

Our partners are former operators, investment bankers, and founders. We've sat on both sides of the table, and that perspective shapes everything we do for our portfolio.

A professional woman with dark, wavy hair, wearing a black suit and shirt, poses against a neutral background.

Alexandra Reid

FOUNDING PARTNER

Former operator at two Fortune 500 exits. 20 years in growth equity and venture.

Marcus Chen

PARTNER, PORTFOLIO OPERATIONS

Built and scaled three SaaS companies. Joined Northbrook Fund to do it for others.

Isabelle Fontaine

PRINCIPAL, FINTECH & INFRASTRUCTURE

Former Goldman Sachs TMT. Leads our financial technology investment practice.

David Osei

PARTNER, CLIMATE & ENERGY

15 years in energy transition investing. Advisor to the UN Climate Finance Task Force.

OUR HISTORY

A decade of
deliberate growth.

From a $40M seed fund with five portfolio companies to a $380M institution with a decade of exits, relationships, and hard lessons, this is how we got here.

2014

Firm founded with $40M seed capital and a five-company portfolio thesis centered on deep operational partnership.

2014

Firm founded with $40M seed capital and a five-company portfolio thesis centered on deep operational partnership.

2016

First portfolio exit at 6.2× return. Validated the concentrated model. Fund II launched at $120M with an expanded mandate.

2016

First portfolio exit at 6.2× return. Validated the concentrated model. Fund II launched at $120M with an expanded mandate.

2018

Expanded into FinTech and Climate verticals. Opened London office to access European deal flow and institutional LPs.

2018

Expanded into FinTech and Climate verticals. Opened London office to access European deal flow and institutional LPs.

2020

Navigated market dislocation with discipline. Zero portfolio failures. Three new investments made at historic entry valuations.

2020

Navigated market dislocation with discipline. Zero portfolio failures. Three new investments made at historic entry valuations.

2022

Fund III closes at $380M. Portfolio companies collectively reach $2.1B in combined valuation. Team grows to 14 investment professionals.

2022

Fund III closes at $380M. Portfolio companies collectively reach $2.1B in combined valuation. Team grows to 14 investment professionals.

2024

Named Top 25 Emerging Managers by Private Equity International. First climate portfolio company reaches $400M valuation milestone.

2024

Named Top 25 Emerging Managers by Private Equity International. First climate portfolio company reaches $400M valuation milestone.

2026

Fund IV underway. Selective intake open. Actively partnering with founders at the frontier of their industries.

2026

Fund IV underway. Selective intake open. Actively partnering with founders at the frontier of their industries.

TRUSTED BY LEADING INSTITUTIONS

Meridian

Vantage

Atlas

Solara

Crestline

Gowind

WORK WITH US

If our philosophy
resonates, let's talk.

We're not right for everyone. We're deeply right for a few. If that's you, we'd like to know before someone else does.

COMMON QUESTIONS

Clarity before commitment.

The questions founders and fund managers ask most before applying to partner with Northbrook Fund.

The questions founders and fund managers ask
most before applying to partner with Northbrook Fund.

What types of companies do you invest in?

How selective is your intake process?

What does Northbrook Fund offer beyond capital?

How long does the application process take?

Do you lead rounds or co-invest?

How are you compensated?

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