
We are extremely satisfied with the result of the planning and with the cooperation with the specialist planners, graphic designers and architects from SIS and are happy to recommend SIS to others.
Gerhard Mentges (Leading Project manager) UKE HAMBURG

We would like to thank SIS for their excellent and constructive cooperation in the planning and design of our successful new wayfinding system for the interior and exterior of the St. Joseph-Stift in Dresden. The new system, with its fresh colors that support the CI of the building and the large information points, has been implemented very well. The symbiosis of the new outdoor steles and orientation plans with the redesign is the most beautiful and very beneficial for patients, visitors and staff!
Christiane Labitzke (Bereich Technik) ST. JOSEPH-STIFT DRESDEN GMBH
Berlin Adlershof, Germany's largest science and technology park, has finally become visible to everyone thanks to SIS! Within a very short time, a comprehensive project ... was realized in a highly professional and high-quality manner. ... we were more than satisfied with the type of service and communication. SIS not only creates orientation. SIS creates a role model for perfect service as it should be in the 21st century!
Valerie Fribus (Marketing) Berlin Adlershof

... After 4 years of operation, we are still very happy with the result. Thanks to SIS's planning work, the clinic has received an outstandingly functional and aesthetically pleasing guidance and orientation system. We are still very satisfied with the planning, the graphic concept, the tender, the construction management and finally the execution and can therefore gladly recommend SIS to others.
Manfred Fechner (Administration Manager) Mühlenbergklinik-Holsteinische Schweiz- der Deutschen Rentenversicherung Nord
. ... The result of SIS's planning is a graphically and conceptually intuitive orientation system that is very well received and understood by patients and visitors. We are extremely satisfied with the result and the very pleasant and constructive collaboration and have continued to use the services of SIS for our updates since completion in 2014.
Sylvia Langer (Chief Commercial Officer) Universitätsmedizin Greifswald
As part of our remodeling and expansion measures at the Schön-Klinik Hamburg-Eilbek, we have come to appreciate sis as a competent partner and supplier in the planning and implementation of our signage system. In 2008, sis realized the exterior signage with elegant steles, created our site and orientation plan and has been successfully working for us for service and updates ever since.
Karel Kousal (Corporate development) Schön Klinik Hamburg-Eilbek
For our Ericus-Contor in HafenCity, we wanted signage that reflected the quality and high-class character of the office building. ... In particular, the work of your graphic designers was excellent when it came to implementing our wishes and ideas. And the precision of your consultants ensured that there were no gaps in our collaboration. The new signage system ... emphasizes the modern, elegant character of the building and guides our customers easily to their destination.
Barbara Riewe (managing directors) ABG Vermietungsgesellschaft mbH

The Albertinen-Krankenhaus and Albertinen-Haus have been working together with sis sign information systems GmbH for more than 10 years now. ... in our hospitals, sis sign information systems stands for well thought-out concepts, careful execution, precision and adherence to deadlines, flexibly adaptable systems, an adequate price/performance ratio and, last but not least, good, trusting personal cooperation.
Ralf Zastrau (managing directors) Albertinen Krankenhaus und Albertinen-Haus
We particularly appreciated the competent and cooperative way of working and the independent commitment. ... The newly developed information system impressed us as the client and operator, as well as the passengers and visitors to Hamburg Airport with its clear graphic structure, appealing design and functional orientation concept. ... it improves the image, increases the value of the location and blends harmoniously into the award-winning architecture of the airport.
Michael Eggenschwiler, Claus-Dieter Wehr (managing directors) Hamburg Airport
We found sis to be a reliable and professional partner. The collaboration was completely uncomplicated and a lot of fun.
Ms. Himmel Competo Capital Partners GmbH
... we are very satisfied with the result of the planning and the new signage system and have received very positive customer feedback. The system reflects the high quality and identity of the airport and has also significantly enhanced the overall appearance. The cooperation with the company sis ... was exemplary and was a great pleasure, especially as the tight schedule was adhered to and the production data was created smoothly and professionally.
Petra Kusch (authorized signatory), Thomas Degott (Head of Construction and Technology) Airport Saarbrücken

We have found an extremely committed and competent partner in sis and are extremely satisfied with the result of the planning and implementation. Both the new signage system and the design of our site plan have been very well received by patients, visitors and our staff. ... so it was an easy decision to use the sis update service for future changes and extensions.
Ulrich Pomberg (Managing Director) Clinic Emden
In addition to these short excerpts, you can read the full testimonials of our customers under the News section. To the testimonials in the news.