The leading non-equity startup accelerator in Estonia, Ukraine and Slovakia!
Every year we run acceleration programs in various verticals and locations around Europe.
Supporting teams developing innovative products or services for the City of Košice
Challenger Green & Digital
Boosting startups in Green & Digital
Supporting teams developing innovative products or services for cities
Boosting Digital & AI/ML-based startups
Supporting diversity and helping innovative female-led ventures to succeed!
Our Track Record
Challenger is based on our 12-year track record of building & scaling innovative ventures
startups accelerated through our programs
1.3 Billion EUR
raised by startups we worked with
industry experts & investors in our network
Investors & customers
Build connections with investors and customers.
0% equity taken
We are focused on 100% value-added with no equity taken.
Results & business-oriented
We work with founders who are busy building great products and want to invest their time into an acceleration program that helps them get results and grow.
From the blog
Do you have an idea for solving a city’s challenges? Challenger Ideator…Read more
The winner of the Challenger Green & Digital 2022 is DEVS!
The grand finale of the Challenger Green & Digital acceleration program, …Read more