WHO WE ARE

A Team of Dedicated Professionals Who Value Collaboration, Integrity, and Continuous Growth.

At Conversion Science, we choose depth over dazzle. We're a specialist performance marketing agency that cares about doing great work and helping our clients achieve success. Based in Cape Town but working with clients across the globe, we focus on paid media, web analytics, and performance marketing.


We’re not the loudest in the room — we let the work speak for itself. No gimmicks, no fluff — just smart, focused strategies designed to deliver real results. 

MEET OUR FOUNDER


ARIEL SUMERUK

Our founder and CEO is a former Google trainer with an MSc in Theoretical Physics and a PhD in Experimental Physics (University of Texas). He has managed campaign strategy and digital marketing teams for the top 100 companies in the USA, UK, Australia, and South Africa. Ariel started Conversion Science in 2012 with the vision of building a performance marketing agency that’s grounded in data, driven by results, and not distracted by ego.

WHO WE WORK WITH

We’ve helped some of the most recognizable brands in South Africa, including - but not limited to:

  • A leading car manufacturer offering a range of reliable and affordable vehicles across South Africa and the world.

  • The country’s biggest online retailer that offers a wide variety of products from electronics to household essentials.

  • The country’s largest online/brick n mortar clothing & furniture retailer

  • The country’s largest digital automotive marketplace connecting buyers and sellers of new and used vehicles.

  • The leading online property portal where users can search for residential and commercial properties to buy or rent.

  • A top food delivery service offering fast and convenient meal deliveries from local restaurants to your doorstep.

    Our model is scalable and is often a cost-smart alternative for international companies looking for expert-level digital support without the inflated price tag.
    


WHY CLIENTS STAY WITH US

  • Direct access to campaign experts — no middlemen

  • Deep platform knowledge and strategic thinking

  • Responsive, proactive communication

  • Data driven approach that drives better decision-making

  • Long-term thinking and collaboration

WHAT MAKES US DIFFERENT

We don’t believe in adding the additional layer of account managers -  when you work with us, you work directly with your campaign manager. Our team of campaign managers have all been through our in-house training program, which focuses on building strong foundations.

We take a scientific, platform agnostic approach to everything we do, always using analytics to guide decisions as our tactics and strategy. From campaign setup to scaling creative, we use analytics to guide our decisions. 


We also function as a data partner, not just a marketing agency. We’ll help you get more out of your CRM, troubleshoot integrations, and make sure your data actually supports your business goals.


We care about your performance like it’s our own. That means proactive communication, ongoing experimentation, and making sure we’re always a step ahead — whether that’s through smart data usage, new tools, or creative scaling solutions to maximize performance.

Notable Figures Behind Our Success:

Clients, with some of our long-standing clients partnering with us for over a decade

40+

$23+ Million

Managed media spend in 2024 

30+

Team of campaign managers and developers

IF YOU'RE TIRED OF SURFACE-LEVEL SUPPORT AND WANT A TEAM THAT’S GENUINELY INVESTED IN YOUR SUCCESS