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

What we think

Data and analytics | 13 November 2025

How smarter measurement is helping BetMGM to deliver more effective marketing

Advertising and media  | 22 October 2025

The real power of your brand is its ability to charge a price premium

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

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 Bardelli

Meet our people

Jon Bardelli

Partner, Client Success

Jon shares why marketers using MMM to ask better questions has been a highlight of 2025 and why he expects creative effectiveness to be a major focus area for brands next year.

Download our new report