A strong partner behind us

As a subsidiary of NEVARIS Bausoftware GmbH, we provide you with mobile construction site management, to which we can seamlessly connect the market-leading technologies for construction and construction management tasks from NEVARIS. NEVARIS is part of the internationally active Nemetschek Group.

Mitarbeiter von Otoo Building Technologies mit Warnkleidung auf einer Baustelle mit einem Tablet in der Handy

NEVARIS, a Nemetschek Company Logo Pantone bright red


In June 2018, we became part of NEVARIS Bausoftware GmbH. As a technology leader in construction business applications and 5D software solutions for the engineering and construction industry, NEVARIS has been contributing to innovations in the construction industry for more than 30 years. Exceptional development competence, consistent practical orientation and excellent service have always been the success factors. As a subsidiary of the Nemetschek Group, a leading global provider of software for architects, engineers and the construction industry, NEVARIS is a strong and reliable partner for us. Both sides were able to expand competencies, tap into new target groups and strengthen their market position as a result of this merger. With NEVARIS, we have found the ideal partner to further accelerate our growth. We look forward to continuing combining forces!

The short way to us

Do you have questions about our apps or would you like to know how you can use 123onsite profitably?

Contact us! We will clarify all your questions in a personal conversation.

Business hours: Mon. – Thu.: 07:30 – 17:00, Fri.: 07:30 – 15:00