There are thousands of marketing agencies that generalize. That’s not us. We specialize in event marketing and use our deep expertise to fuel growth.
Eventgrow was founded in 2018 by marketing professional Andy Reilly, whose 15 years in digital marketing, sales, and endurance event growth shaped the company’s approach. Andy spent four years at the ACTIVE Network supporting major endurance and experiential brands like Spartan Race and The Color Run. Those experiences helped define Eventgrow’s philosophy: data first, athlete focused, and built on genuine partnership.
Events started seeing measurable improvements in participation, revenue, and marketing performance. Some notable outcomes from our work include:
20% registration growth over two years for the Buffalo Marathon
20% percent registration growth over two years for the Buffalo Marathon
What began as a small practice built around helping a handful of races solve real challenges has become a company focused on one mission: helping endurance events grow participation, increase revenue, and strengthen their impact on the communities they serve. Through thoughtful strategy, smart creative, and strong collaboration, Eventgrow helps events not just market better, but grow with intention and purpose.
We leverage our 15+ years of event marketing experience to accelerate sales and deliver on our promise. We’re data-driven, creative, and specialized in event marketing.
Our clients are our partners. They're not a number or a transaction. They're just like us - eager to step forward and make a difference. Invest in their success and always have their back. Our success depends on it.
We believe in data and creativity, not assumptions. We cultivate an environment that’s constantly testing, learning, and adjusting. We experiment, which helps us come up with the best solutions for our partners and our company.
We're honest, transparent, and ethical. We take ownership of our efforts and communicate clearly with our partners every step of the way. We believe doing the right thing is always the right thing.
We value the exchange of knowledge and expertise. By empowering our team with opportunities to teach and learn, we ensure that we stay ahead of the curve in the ever-evolving event marketing industry.
We prioritize employee well-being with flexible work hours and a fully remote workforce. By giving our team the power to design their workday to fit their needs, we foster a motivated and rejuvenated workforce.
Fostering a growth mindset is essential in everything we do. We encourage our team to constantly seek out new opportunities for learning and development, both personally and professionally. This mindset extends to our clients as well, as we aim to help them achieve continuous growth in their event business.







The first step is for us to have a discussion about your event and your goals. From there, we can see if we would be a good fit for each other. No commitments, no pressure.
If your interested in our help, we then develop a checklist of marketing opportunities specifically for your event.
We work with you to discuss timing, strategy and market fit. From there, we deploy our marketing execution plan and begin executing against it.
We monitor success as we go make adjustments to ensure the best possible results.