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About us

The Swiss payment revolution starts here.

Founded by payment specialists with one goal: to make card payments simpler, more transparent and fairer.

Our story

Payment, reimagined.

After years at leading payment providers, we were convinced: merchants deserve a simpler, more transparent and more modern solution.

So we founded adunopay – a Swiss payment platform that combines modern technology with personal service.

Our goal is simple: card payments should just work. No hidden fees, no complicated contracts and no outdated hardware.

  • 2023checksum AG founded
  • CHDevelopment & support in Switzerland
  • 24/7Support at festivals & events
  • 2026Launch of our own Swiss acquiring services
Marco Casagrande, CEO and Co-Founder of adunopay
Marco CasagrandeCEO & Co-Founder · Baden AG

What drives us

What drives us.

Payment should be simple, transparent and fair.

We saw first-hand how complicated payment has become: contracts keep getting longer, fee models less transparent and systems needlessly complex.

So we built adunopay – a Swiss payment solution that unites modern technology, personal support and fair terms.

Our ambition: to give businesses of every size tools that simply work – from the mobile terminal and SoftPOS to the till-integrated solution.

Our home

At home in Baden. At work across Switzerland.

From our headquarters in Baden we build payment solutions for businesses of every size.

What sets us apart is not just modern technology, but the personal connection to our customers and partners.

Every day, our team works to make payment simpler, more transparent and fairer.

Baden on the river Limmat – adunopay's home

Let's get to know each other.

We'd be happy to show you how modern card payments work with adunopay.