draft homepage, July 2026

Enabling giving based on sound evidence

We help donors — individuals, families, foundations, companies and governments — give more effectively, through advice, research and campaigning.

What we do: Evidence-based philanthropy

Consulting

Consulting (advisory)

We find strong charities for clients to fund, review their existing strategies, and help them to build new programmes.

Read our clients’ views →
Research

Commissioned research

Donors and funders commission us to produce research to inform giving and practices. It is published. This includes the Foundation Practice Rating.

See our publications →
Campaigning

Campaigning (talks & press)

Giving Evidence’s Director Caroline Fiennes speaks and writes widely in the press and at events, to help donors and funders to give well.

See press coverage →

Track record

We’ve advised many donors and funders in many countries on many issues — here are some examples:

14+
Years advising the same foundation clients
2011
Founded — advising donors across many sectors and countries since
6
Years producing research for the Foundation Practice Rating
350+
Separate foundations assessed in the Foundation Practice Rating
62+
Events at which we’ve spoken
5
Systematic reviews and Evidence & Gap Maps produced for clients
71+
Press articles

“Caroline and the Giving Evidence team immediately understood what I was trying to achieve in terms of better use of research in this sector — and not all philanthropy advisors did.”

Founder & President
Tiny Beam Fund

“Caroline understood that we needed a systematic review before I had even heard of them! Giving Evidence did a great job of scoping the task and managing the research smoothly.”

Jo Wells
Director, Blagrave Trust

“Caroline Fiennes is a great source of advice about charitable giving. She helped Eurostar become effective very rapidly.”

Richard Brown
CEO, Eurostar

“Caroline very quickly got the measure of ICG and the respect of our team. Her work was timely, insightful, clear and professional.”

Andrew Lewis
General Counsel, ICG

“Caroline Fiennes provided excellent advice to the ERM Foundation. She has a strong understanding of philanthropy and how it is best done in a corporate context.”

Robin Bidwell
President, ERM

“We really learnt a lot from Caroline during this work. She moved us forward a lot, making our plans clearer and better.”

Phumlani Nkontwana
Allan & Gill Gray Philanthropy Africa

“Giving Evidence’s team rapidly understood Optimus Foundation’s work and model, and… our team also benefited from their knowledge and experience – plus they made introductions to other funders and researchers.”

Phyllis Costanza
Head UBS in Society and CEO, UBS Optimus Foundation

“Giving Evidence brought deep expertise, and relevant experts, to the design and execution of both these projects. It ran a complex process smoothly and professionally.”

Stephen Bubb
Founding Director, Charity Futures

“Working with Giving Evidence helped us to upgrade and professionalise our charitable giving. We benefited from Giving Evidence team’s many years in the field of effective social change.”

Stewarts
Stewarts Foundation

“Caroline and the Giving Evidence team immediately understood what I was trying to achieve in terms of better use of research in this sector — and not all philanthropy advisors did.”

Founder & President
Tiny Beam Fund

“Caroline understood that we needed a systematic review before I had even heard of them! Giving Evidence did a great job of scoping the task and managing the research smoothly.”

Jo Wells
Director, Blagrave Trust

“Caroline Fiennes is a great source of advice about charitable giving. She helped Eurostar become effective very rapidly.”

Richard Brown
CEO, Eurostar

“Caroline very quickly got the measure of ICG and the respect of our team. Her work was timely, insightful, clear and professional.”

Andrew Lewis
General Counsel, ICG

“Caroline Fiennes provided excellent advice to the ERM Foundation. She has a strong understanding of philanthropy and how it is best done in a corporate context.”

Robin Bidwell
President, ERM

“We really learnt a lot from Caroline during this work. She moved us forward a lot, making our plans clearer and better.”

Phumlani Nkontwana
Allan & Gill Gray Philanthropy Africa

“Giving Evidence’s team rapidly understood Optimus Foundation’s work and model, and… our team also benefited from their knowledge and experience – plus they made introductions to other funders and researchers.”

Phyllis Costanza
Head UBS in Society and CEO, UBS Optimus Foundation

“Giving Evidence brought deep expertise, and relevant experts, to the design and execution of both these projects. It ran a complex process smoothly and professionally.”

Stephen Bubb
Founding Director, Charity Futures

“Working with Giving Evidence helped us to upgrade and professionalise our charitable giving. We benefited from Giving Evidence team’s many years in the field of effective social change.”

Stewarts
Stewarts Foundation
As seen in

Each name links to the coverage on our site

Caroline Fiennes, Director of Giving Evidence

Who we are

Giving Evidence helps donors to maximise their effectiveness by making their giving based on sound evidence. Our team has worked across sectors and countries, combining deep research skills with experience in both funders and operational charities.

Meet the team →

The Foundation Practice Rating

Giving Evidence runs the research for the Foundation Practice Rating. Every year, we independently assess 100 UK charitable foundations on their practices on diversity, accountability and transparency. It’s unprecedented, and now in its sixth year.

Read more here →
100
foundations rated each year
6th
year running

Latest insights

Recent research and talks

Talks
16 June 2026

Evidence-into-policy: keynote in Accra, Ghana

Read more →
Talks
11 January 2026

What evidence to use at each stage of a programme

Read more →
Research
12 July 2025

Prince Andrew’s patronage of charities didn’t help

Read more →
Book cover

It Ain’t What You Give, It’s The Way That You Give It

A guide to charitable giving: how charities really work; how to help them; how to not hinder them — “the Freakonomics of the charity world, with better cartoons.”

Buy the book