About 123onsite
We develop software with passion – we can’t do otherwise

123onsites was born out of an idea by the company’s founder and construction contractor Jürgen Bruns, who had been looking for a mobile time tracking solution for his business for quite some time and couldn’t find a suitable one – so he developed it himself.
The ulterior motive was to develop a software for construction companies that would make work much easier. And this is done by having all the construction documentation directly incorporated into the accounting and project management. And all of this is captured with the tool that by now every construction worker has on his or her hands: the smartphone. Together with software developer Dominic Sander, Jürgen Bruns invented 123onsite, a smart and efficient solution. A few years later, the app has grown tremendously, and so has the company – with consistent growth averaging 60-80% annually, 123onsites has now become the market leader in mobile construction site management.
2018 marked the strategic acquisition of 123onsite.de GmbH by NEVARIS Bausoftware GmbH, the technology leader for digital processes in the construction industry. What started with two highly motivated experts has developed into a modern company with a Silicon Valley atmosphere located in northern Germany. This is where we develop our software with a great deal of passion for our work and in an agile, motivated team of meanwhile more than 20 colleagues. With heart and fun – for you!
Get to know the people behind your
favorite construction software

Alex Bauer
Development

Aynur Yildiz
123sales

Benno Pohl
Development

Caroline Daniel
Development

Celine Albers
Support

Christoph Schmid
Development

Daniel Schmitz
Professional Service

Daniela Günther
123sales

David Künnen
Product management

Gabriel Both
123sales

Gilian Lamping
Development

Greta Wulf
Support

Jan Köster
Product management

Jan Philipp Wacker
Support

Julian Schmedes
Development

Kevin Suske
Professional Service

Laura Evers
Support

Matthias Rocca
123sales

Maurice Stelljes
123sales

Maximilian Moser
123sales

Michael Radder
123sales

Oliver Feideler
Administration

Patrick Ording
Development

Ruth Schiffmann
Executive

Sascha Bultmann
Development

Sebastian Stachowiak
123sales

Simon Radtke
123sales

Stefan Neumann
Executive

Thomas Tebbe
Development

Thorsten Wenzel
123sales

Tim Kratky
Development