to keep you safe

Cardinal is a premier blockchain software house focused on cryptographic research, development, and marketing.

but based in Krakow.

Our headquarters are located in
Estonia and Poland, giving us access to two of the best startup ecosystems available.

About Us

Here's what we've been up to since we started a year ago.

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Our Services

Discover more about the company and products.

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Cryptography Matters

Learn how to make your organization more secure.

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We’re Changing the Way You Think About Security

Lear more about us

Not just your regular
IT security company

Cryptography is at the very core of what we do. We've proved that by building Aleph Zero — an unhackable blockchain platform.

Tailor-made safety solutions

You might not need to use blockchain in your firm — and we'll simply tell you if you don't.

You've got questions — we have the answers

With all the buzz surrounding nowadays technology, it might be tough to determine what's actually necessary. We're here to help.

the platform

Smart Contracts,
and IPFS

We're proud of our achievements. One of them is getting blockchain to 100,000 transactions per second with 2 second validation time.

Common Wallet

Common is the first product built on top of Aleph. Have you ever heard about a universal wallet that allows to send and receive Bitcoin in 5 seconds, while still having control over the process?


Join in, and help us fluorish.

Join Cardinals — one of the most progressive, inclusive, and fun team on the IT scene.


& Marketers

With more than 20 years of experience we can deliver best solutions.

Matthew Niemerg, Ph.D.

Co-Founder, ceo

Johan Bratt

Co-Founder, cIo

Adam Gagol, Ph. D.

Co-Founder, cTo

Antoni Zolciak

CO-Founder, cOO

Michal Swietek, Ph.D.

Co-Founder, cPo

Birk Thisted

Co-Founder, Business Designer

Damian Straszak, Ph. D.

Senior developer

Michal Handzlik

Senior developer

Tomasz Kisielewski

Senior developer

Maciej Gawron, Ph.D.

Senior developer

Damian Lesniak

Ph. D. Candidate, Researcher

Lukasz Lachowski

Senior developer

Mateusz Gorecki

Creative Director

Agata Wiech

Employer branding manager

Mateusz Raczynski

Content Manager

Our Values

How you make your money is more important than how much you make.


We're constantly pushing cryptographic R&D forward.


We live and breathe agile, working towards rapid delivery.

Look inwards

In case of any issues, we first start by looking inwards.

Provide clarity

We create pixel perfect designs that looks always awesome.

Stay honest

If something is not doable, we'll let you know.

Have fun

Passion and fun makes the best professionals.


To make the world a safer place.

— the team
work with us