About us

At Calvi we believe that everyone is entitled to a clear invoice.
We take responsibility for the complete user experience of Billing & Invoicing in the Telecom industry. We do this through the delivery of innovative bill presentment and intelligence solutions to an extensive range of Telecom Providers across the globe.

What defines us

Making things simple is the hardest thing to do, but when done well, delivers the greatest rewards. That’s where Calvi raises the bar and provides its customers value that goes beyond. We strive to remain the best-in-class in the highly specialised and vital terrain of bill presentment and communication, telecom expense management and billing. We do not settle for less. 

Everyone at Calvi has their own unique expertise and vision about where the telecom industry is heading and how they can contribute to that. Yet we all share the same four core values. It's what defines us. 

We are self-willing. We dare to differ. We strive for perfection; we stand out with our beautiful range of products. We are loyal to our customers and to ourselves.

How we work

Trusting our people’s insight to navigate innovation

We operate from a truly inspirational working environment. Our impressive 13th century castle 'Kasteel Nederhemert' is the breeding ground of our solutions, a productive setting where history and tradition meet passion and innovation. Our spirit and drive shows itself in the core of our ground-breaking software. And, our international expertise and insight form the foundation for our excellence in working with multinational colleagues.

Follow the leaders

Understanding that inviting interaction builds meaningful partnerships

Leo van der Heijden founded Calvi more than two decades ago when multiple large enterprise customers and their Telcos required a team of experts to help them with the challenges of doing business with each other. Large enterprises wanted to ensure that they were able to effectively manage their telecom inventory and cost. The Telcos were having increased challenges with their billing & invoicing systems and processes for which they needed advice. Together with his team, Leo crafted a great idea into a thriving innovative business. Their vision has made Calvi the European leading company in telecom invoice technology.


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