Our Founder

Theo Tziapouras

Cornerstone began with one simple belief, that good businesses deserve to be seen and understood.

For Theo, that belief grew out of years spent behind the camera, working with construction, design, and manufacturing brands who were doing incredible work but struggling to show it. He saw the same pattern again and again: strong companies with great products, but no clear way to communicate their value online.

That’s where the idea for Cornerstone started, a specialist agency built to bridge that gap between what you build and how the world sees it.

The Vision

Theo’s focus has always been practical growth. He’s not interested in vanity metrics or buzzwords, he cares about systems that actually move the needle.

At Cornerstone, that means blending creative storytelling with data-driven strategy. Whether it’s a new website, SEO campaign, or brand video, every piece of work is designed to help clients build visibility, authority, and trust in their industry.

“Marketing should feel like progress, not confusion.
It’s about clarity.. knowing who you are, who you’re speaking to, and what message will make them stop and listen.”

Today

Cornerstone exists as more than an agency, it’s the product of years spent helping ambitious businesses turn their craft into growth. And that’s still what drives Theo every day: helping great brands find their voice, refine their message, and win the attention they deserve.