
Our marketing experts

Simon Heath
Director of strategy and planning
I’m Simon, and I head up the brand and marketing strategy and planning team. For over 25 years I’ve shaped some of the world’s biggest brands, and their marketing strategies. My proudest moments come when I roll up my sleeves to collaborate directly with consumers, clients, CEOs, creatives, analysts (and more) to build brands that people deeply bond with.
My work spans multiple sectors and disciplines. From B2C brands like Barclays, Unilever, Dove, American Express, Lloyds, BT, Virgin Trains and The Times; to global B2B financial and fintech industry leaders like ION Analytics, CCC and SS&C Advent. I’m also proud of crafting Definition’s Human Affinity model which is now at the heart of brand and marketing strategies globally. For me, it’s all about helping brands (and people) uncover hidden depths and unexpected connections.

Naz Kargi
Production manager / Senior creative artworker
I’m Naz, the Production manager at Definition. With over 20 years of experience in the creative advertising world, mainly in London studios, I bring a wealth of expertise to our Creative production division.
Throughout my career, I’ve had the privilege of working with top brands from around the world. From conceptualization to execution, I have successfully produced world-famous artworks that have captivated audiences and made a lasting impact.
In my role as the Production manager, I thrive on the challenge of bringing visual ideas to life. Whether it’s coordinating teams, managing deadlines, or ensuring the highest quality in every project, I take pride in delivering exceptional results.
When I’m not immersed in the world of production, you’ll most likely find me exploring art exhibitions, seeking inspiration for my next creative endeavor.
If there’s one thing I’ve learned from my years in the industry, it’s that the power of visual communication is unparalleled. And I’m here to make sure your brand’s creative vision becomes a reality.
Let’s collaborate and create something extraordinary together!

Mitch Foot
Planning executive
I’m Mitchell, one of the strategic masterminds in the marketing division. A deep curiosity drives me to uncover hidden opportunities and delve into the intricate world of customer behaviour. My career began in the tech industry, where I developed an undeniable passion for marketing.
Prior to joining Definition, I honed my skills at a leading performance marketing company. My passion is fuelled by the thrill of shaping compelling narratives and steering measurable transformations for clients. By leveraging data, creativity and unique insights, we craft strategies that cut through the noise to drive meaningful connections between brands and audiences in the ever-changing world of marketing.