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

Challenger Diversity

Challenger Accelerator is here to focus on increasing diversity and supporting teams where at least one female founder is in the co-founding team. We're offering you a 3-month equity-free program with 30+ mentors and 500+ hours of coaching. Get ready to skyrocket your startup.

Application to the program has ended for this year.


What is Challenger Accelerator?


Group workshops with experts about topics such as sales, law, finance, product building and presentation skills.

500+ hours of mentoring

Tailored individual coaching with key mentors specially chosen for the program.


Networking events to learn and get connections with other founders, experts and ecosystem players.

30+ experts

Meet investors and experts and get feedback from them during our events.

Demo Day

An opportunity to present the solution to international investors, large corporations, and ecosystem players.

0% equity

Our acceleration program is totally "equity-free".

Challenger Diversity program:

The Challenger Diversity acceleration program will kick off in December 2022 and will be running from January to March 2023. The accelerator program will end with a Demo Day during the sTARTUp Day 2023.

Challenger Diversity inspirational event

8th of November

Join us at the opening event in Tallinn at Vabaduse Workland or tune in online, to hear about what this program is all about, why should you apply, and where will the Challenger take you.

Application deadline

27th of November

Make sure you submit your Application by Sunday, 23:59 EET. Within a week you will learn whether you are selected to attend at the Challenger Diversity Selection Bootcamp amongst the top 15 teams.

Selection Bootcamp

2nd of December

Selection Bootcamp is an on site full day event organized for the top 15 teams. You'll have an opportunity to pitch your solution to a jury of experts and mentors, participate in the workshops from top-notch trainers and meet industry experts. The top 6-8 start-ups will be selected to become a part of the Challenger Diversity acceleration program.

Challenger Diversity Kickoff event

14th of December

On the December 14th, the 6-8 teams participating at the accelerator program will get together and kick off the start of the program. At the event we will talk about what will be waiting for you in the accelerator program, you will be matched with your key mentors and will have a chance to get to know the other teams participating in the program. This will be an on-site event in Tallinn.

Acceleration program

January-March 2023

Learn about product/market fit, scaling, selling and marketing your product, building the company and attracting investments at the specially tailored workshops during the 3-month of the program and get even more insights and guidance from your key mentor during regular 1:1 mentoring meetings.

Challenger Diversity Demo Day

March 15-17 / sTARTup Day

Pitch your startup to the jury of international investors, potential clients, partners and the media at the final event of the Acceleration program. Get the opportunity to stand out, raise awareness and find the partners you need!

What are we looking for?

Supporting diversity and helping innovative female-led ventures to succeed

At least one female founding member with an equal share

Raised pre-seed or raising a seed round

Existing product or a service

Existing revenue and clients


Triin Kask

Co-founder & CEO

Kristel Kruustük

Founder and Chief Testing Officer

Kadri Tuisk

Founder and CEO

Karen K Burns


Harri Tallinn

Civitta Estonia

Kristian Kalle

VideoCV founder & CEO

Indrek Seppo

Marduk Technologies co-founder & ex-CEO

Iryna Krepchuk

Trind VC analyst

Kirill Soloviev

ContentQuo co-founder & CEO

Kristian Sägi

Dynatrace Lab Estonia director

Andres Tuul

The Farmer's Dog co-founder and ex-CTO

Kärt Siilats


Mariana Hagström

Avokaado founder and CEO

Sandra Saarniit

Community Development Manager at Startup Estonia

Asta Vasiliauskaite

Growth Marketing Manager - Bob W

Marie Jaksman

Nevercode ex Head of Marketing

Matthias Markus

Modash Sales guy / customer facing side

Hendry Sadrak

Modash CTO


Powered by: