This is
GAIN

Craig Sher

Group CEO

Craig co-founded Sionic Advisors in 2014, rapidly building it up into a $100 million premier financial services consulting firm across ten countries. This was done over nine years and through various mergers and acquisitions. It was sold in 2021 to the Davies Group. Before Sionic, he was chairman and managing director of ALaS Consulting. Craig is a chartered certified accountant, and holds a BS in commerce from the University of KwaZulu Natal.

Tamsin Ashmore

CFO

Tamsin Ashmore is a strategic and forward-thinking CFO with global experience across multiple continents. She has a proven track record of delivering results through acquisitions, mergers, and other significant transactions. As a driven and authentic leader, Tamsin takes a Net Positive approach, focusing on business growth, financial performance, and attracting top talent.

Neil Dennis

CEO – GAIN EMEA

Leads GAIN across EMEA, a £45M business of around 450 people spanning Conversion, Customer Science, Creative, Experience and Performance, with clients across the UK, Spain and wider EMEA.

Mike St Laurent

CEO – GAIN North America

As CEO of GAIN North America, Mike leads the group’s teams and client partnerships across the US and Canada. He brings 10+ years’ experience in the Experimentation & UX industry, most recently as CEO of Conversion.com. Mike brings a mix of enterprise account management, business strategy, and innovative thinking that have lead to consistent value creation for GAIN and clients alike.

Chris Pitt

CEO – GAIN ONE

Chris is CEO of GAIN ONE, GAIN’s global new business growth engine, bringing the right mix of data, technology & expertise to ambitious brands and organisations around the world.

Rob Van Rooyen

CEO – GAIN Ignite

Rob is CEO of GAIN Ignite, the group’s Strategy & Insights capability, helping clients solve complex commercial challenges through strategy, data, technology and customer intelligence. He brings more than 30 years’ experience across leadership, strategy, transformation and growth, including senior roles across some of the world’s largest agency networks. He has built his own successful businesses across communications, digital and pharmaceuticals, and worked with more than 500 brands. His passion for innovation and strategy is reflected in his work as an author and former postgraduate lecturer. Having been a business owner and strategic adviser, Rob brings a practical, real-world perspective to creating growth at scale.

Abdul Hamid Ebrahim

CEO – GAIN IQ

As CEO of GAIN IQ, Abdul Hamid leads the strategy, growth and delivery of GAIN’s AI product ecosystem. He is responsible for transforming GAIN’s expertise, proprietary data and proven methodologies across performance marketing, creative, customer science, conversion and experience into scalable SaaS products. This includes Lupine, GAIN’s AI-powered CRO platform, and Spirea, our creative intelligence product for improving performance across paid media. With more than 20 years’ experience across CX, martech, AI and digital transformation, including senior roles at Oracle and Genesys, Abdul brings together product, technology and commercial leadership to build AI products that create measurable value for organisations.

Gareth Hughes

CTO

Gareth Hughes is an Experienced Technical Director with demonstrated success of working in the marketing and advertising industry. Skilled in data architecture and analysis, information security, requirements analysis, e-commerce, agile methodologies, and customer relationship management.

Anna Catherall

Operations Director

As Group Operations Director, Anna keeps everything running smoothly behind the scenes. She has over 20 years’ experience in financial and operational management positions in both digital marketing and financial services. She’s focused on collaboration, clear communication, and is constantly striving to get things done faster, smarter, and better.

Tanvi Amin

General Counsel

Tanvi is a seasoned lawyer whose extensive portfolio across industry sectors reflects a robust blend of private practice and in-house leadership roles at premier global law firms and corporations. With her strategic and operational international legal experience spanning nearly three decades, she shapes GAIN’s core legal strategy while driving regulatory alignment and effective risk management across GAIN’s operations worldwide, ensuring resilience and adaptability in today’s complex global business environment. She is UK- and US-qualified, holds a BA (Hons) and MA (Oxon) in Jurisprudence (Law) from the University of Oxford, and is also admitted to the New York Bar.