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Gain Theory, A Global Foresight Consultancy

We accelerate growth for ambitious brands

We are a global marketing effectiveness and foresight consultancy with expertise in data, advanced analytics, and technology. We empower smarter, data-informed marketing investments.

Forrester Wave Leader 2023

Gain Theory named a Leader in The Forrester Wave™:

Marketing Measurement and Optimization, Q3 2023.

$
21
bn

in client value generated

50

years of experience

910

client recommendation score

We work with ambitious brands

Doordash logo Beauty Pie logo
Reckitt logo Funding Circle logo
dfs logo General Mills logo
Ahold Delhaize logo Doordash logo
Dr Oetker logo IG logo
Purina logo dfs logo

What we think

Foresight | 1 May 2025

Why data-informed foresight is key to conquering economic chaos

Read more about Why data-informed foresight is key to conquering economic chaos
Data and analytics | 17 December 2024

Is your marketing effectiveness program built to last? 5 questions you need to ask

Read more about Is your marketing effectiveness program built to last? 5 questions you need to ask
Advertising and media  | 21 November 2024

Profit Ability 2: Three key takeaways that prove advertising really is effective

Read more about Profit Ability 2: Three key takeaways that prove advertising really is effective
Advertising and media  | 4 November 2024

Unlocking creative effectiveness: How to bridge the gap between creativity and analytics

Read more about Unlocking creative effectiveness: How to bridge the gap between creativity and analytics
Measurement strategy  | 11 October 2024

Let’s get real, marketing effectiveness requires much more than a trendy new MMM

Read more about Let’s get real, marketing effectiveness requires much more than a trendy new MMM
Advertising and media  | 20 August 2024

It’s time to re-evaluate how we measure creative effectiveness

Read more about It’s time to re-evaluate how we measure creative effectiveness

Want to know what our industry-leading experts have to say?

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Using our award-winning solutions, you can:

Focus on measuring what matters

Increase speed and quality of insights

Create value over the short and long term

Interested in our
award-winning solutions?

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Meet our people

Meet our people

Shawn O’Neal

Americas CEO

Shawn discusses why marketers shouldn’t let uncertainty hinder decision-making, the impact gen AI is having on brands, and why he follows the work a University of Oxford don.
Read more about Shawn O’Neal
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