Hi, I'm Lauren Lannan, Founder of Great Island Growth.

For more than 15 years, I’ve worked at the intersection of marketing, finance, and technology, helping companies understand what’s working, where to invest, and how to turn insight into action.

My approach starts with discovery: understanding your goals, digging into the data, looking across channels and customer behavior, and identifying what is actually driving results. From there, I translate those insights into a focused strategy and, importantly, help put it into practice. The goal isn’t just a better plan. It’s making better decisions and seeing those decisions translate into growth.

I personally lead every Great Island Growth engagement, working alongside your team from strategy through execution. Whether I’m evaluating your marketing mix, building a measurement framework, or helping your team prioritize its next move, I bring a hands-on, practical approach to the work.

Practical strategy. Clear measurement. Real growth.