Challenger Accelerator

The leading non-equity startup accelerator in Estonia, Ukraine and Slovakia!

Programs

Every year we run acceleration programs in various verticals and locations around Europe.

Opening Soon

Challenger Ideator

Supporting teams developing innovative products or services for the City of Košice

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Challenger Green & Digital

Boosting startups in Green & Digital

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Challenger Urban:Creative

Supporting teams developing innovative products or services for cities

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Challenger AI

Boosting Digital & AI/ML-based startups

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Challenger Diversity

Supporting diversity and helping innovative female-led ventures to succeed!

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Our Track Record

Challenger is based on our 12-year track record of building & scaling innovative ventures

1,150+

startups accelerated through our programs

1.3 Billion EUR

raised by startups we worked with

350+

industry experts & investors in our network

Why Challenger?

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

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