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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. By fusing deep expertise with advanced AI, we empower marketers to make smarter and faster data-informed investments that deliver unmatched value.

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

What we think

Advertising and media  | 3 July 2025

How advertising drives growth: Three key takeaways from our new report

Advertising and media  | 29 May 2025

Marketing Effectiveness Unlocked: Introducing Gain Theory’s AI-powered podcast

Data and analytics | 22 May 2025

How Australian CMOs are building a culture of effectiveness with data-driven decisions

Advertising and media  | 22 May 2025

Standard Chartered: How marketing builds trust and positions itself as a growth engine

Advertising and media  | 21 May 2025

Retail media: Why advertisers need to address how different teams collaborate to ensure success

Foresight | 1 May 2025

Why data-informed foresight is key to conquering economic chaos

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

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?

Start exploring

Meet our people

Jon Webb Global Head of Advanced Analytics

Meet our people

Jon Webb

Global Head of Advanced Analytics

Jon discusses why marketers shouldn’t over focus on ROI, his favourite science fiction novels, and how he brings his rugby coaching experience into work

Download our exclusive new report