Seerave Foundation

Our Purpose

Seerave’s purpose is to improve outcomes and enhance quality of life for every patient by integrating the microbiome and its role in immune system performance into comprehensive cancer care.

Our Thesis

At the frontier of oncology, clinicians are using patients’ own immune systems to treat cancer. We believe that these immunotherapies hold great promise, and that the microbiome is key to realizing the full potential of the immune system to cure disease.

The human body exists in symbiosis with the trillions of microbes that inhabit it.

The microbes comprising our ‘gut microbiome’ play a uniquely profound role in our health as an intrinsic part of our immune system, with implications for how we treat cancer.

We can improve cancer patients’ outcomes and quality of life by supporting their microbiome before, during, and after cancer treatment.

We do this by enabling the generation of new scientific insights at the intersection of microbiome and cancer science, translating those discoveries into updated advice for clinical practice and novel clinical tools.

What We Do

Fund and convene

We fund the world’s leading researchers and innovators working on the microbiome, cancer, and the immune system. We convene experts from these disparate fields of science and medicine to foster advancements that come from their shared insights.

We work with urgency to bring these insights directly to patients, by organizing efforts to evaluate and deliver updated advice on clinical practice, and by investing in novel clinical tools.

Our three strategic pillars focus on evidence generation, updates to clinical practice, and the development of novel tools, each informed by the other and aligned against a goal of improving patient outcomes and quality of life within the coming years.

Data Spotlight

Seeave Global Oncobiome Atlas

Policy Spotlight

Microbiome & Cancer Working Group

Ventures Spotlight

Florey Biosciences

Our Projects

Who We Are

Proactive family foundation

The Seerave Foundation (pronounced “SEE-reyv”) is named after Eva Rees, whose experience fighting metastatic melanoma inspired her husband David Rees and daughter Elisabeth Rees to establish the foundation in 2015.

Seerave’s team includes scientists, entrepreneurs, and public health experts driven by the conviction that our microbiome presents a powerful opportunity to shape our immune system’s ability to withstand cancer.

About Seerave

Immune System
Symbiosis
Microbiome
Personalised Cancer Treatments
Immune System
Symbiosis
Microbiome
Personalised Cancer Treatments
Immune System
Symbiosis
Microbiome
Personalised Cancer Treatments
Immune System
Symbiosis
Microbiome
Personalised Cancer Treatments

Involved
Pragmatic
Proactive
Collaborative
Open Science
Integrative
Involved
Pragmatic
Proactive
Collaborative
Open Science
Integrative
Involved
Pragmatic
Proactive
Collaborative
Open Science
Integrative
Involved
Pragmatic
Proactive
Collaborative
Open Science
Integrative

Data Integration
Translational Science
Clinical Guidelines
Advocacy
Novel Tools
Data Integration
Translational Science
Clinical Guidelines
Advocacy
Novel Tools
Data Integration
Translational Science
Clinical Guidelines
Advocacy
Novel Tools
Data Integration
Translational Science
Clinical Guidelines
Advocacy
Novel Tools

Learn about our Approach

Latest

Explore our selection of research articles and news

Meet the Microbiome & Cancer Working Group

Nov / 2025

Launching the Seerave Global Oncobiome Atlas

Jun / 2025

Network

The Microbiome and Immuno-oncology in the Spotlight at ASCO 2025

May / 2025

FAQ

I would like to ask you about...

Seerave is a proactive family Foundation established in Jersey (Channel Islands). We are inspired by personal experiences and driven by the conviction that through collaboration we will be able to accelerate science and catalyse innovation to enable our vision that every cancer patient has access to personalised, integrative treatment and care.

Seerave uses a combination of traditional grant donations for academic researchers as well as equity investments into early-stage start-ups. All of our collaborations are mission-aligned. Our project portfolio is built around international alliances of world-leading institutions, visionary scientists and entrepreneurs.

Yes. Seerave Foundation is a registered NPO under Non-Profit Organisations (Jersey) Law 2008, with registration number NPO-7095 and the following registered address: 35-37 New Street, St. Helier, Jersey JE2 3RA, Channel Islands.

The funding comes from a family endowment. David Rees co-founded the downstream oil company Greenergy, which was sold in May 2017 and the resulting proceeds were bequeathed to Seerave to fund its philanthropic activities.

Hint: read it backwards. Seerave is named for Eva Rees, whose experience fighting metastatic melanoma inspired her husband David to establish the Foundation in 2015. It is pronounced SEE-rayv.

Read all FAQ