Since joining the Tehnopol Zebra scale-up programme in 2025, KULG has benefited from mentorship, hands-on growth workshops, and the opportunity to showcase the company at major Estonian tech events such as Startup Day and Latitude59.

In the latest issue of Jooksja magazine, KULG founder and CEO Maris Heinaru reflects on her 28th marathon and the lessons learned from an ambitious training experiment. She reflects on how rapidly increased training stress can impact the body. The article offers a real-world example of why data must always be interpreted in context and why early warning signs should not be ignored.

We’re thrilled to announce that we have raised 100 thousand euros in pre-seed funding. In total, early investors have invested 120 thousand euros in KULG this year.

Tune in to our founder Maris Heinaru’s interview at KUKU Radio on catching the kulg (flow) of running, goal-setting, crossing finish lines, and what we’re building at KULG - plus some surprising insights on marathons and mountains.

The benefits of running on one's mental - not just physical - health have long been proven. It’s no surprise that, according to Strava, running is booming, being the fastest-growing sport globally. The best part is that it’s never too late to start. The real question is: how do you start smart and stick with it?

Running a marathon can be fun. In an interview with Tervis Pluss, our founder Maris tells her story and why she now really enjoys running marathons.

The finish of last year’s Tallinn Marathon will stay in my memory for its unusual and dramatic crossing of the finish line. About a hundred meters before the finish, I could no longer run, and reaching the bronze medal at the Estonian Marathon Championships tested every cell in my body. I spoke to Delfi Sport about what really happened.