About us

by | Sep 16, 2026

In cooperation with our strong partners such as „Kvant Laser (Slovakia)“, „Pangolin Laser (USA)“, the „TU Dortmund“ and last but not least the „Fraunhofer Institute for Material Flow and Logistics in Dortmund“, we have been working on optimizing work processes with the help of state-of-the-art laser and LED technology since 2011. It is the know-how of „the whole team“ that makes our work so successful.

At the beginning of 2023, we (GT-TECH Laser, a company for modern laser technology, founded on 01.03.2011) outsourced the industrial sector to a new company, Virtual Line GmbH. The „Virtual Line“ division brings with it completely new possibilities for the projection of marking lines and warning signs, which the entire team is constantly researching, developing and improving with passion.

Initially, our focus was mainly on the further development of laser technology in order to be able to change the color and shape of projected floor markings – and above all – in real time. In the meantime, it has become clear that many floor markings can be static, which is why we are also intensively developing LED technology!

When it comes to laser safety, Virtual Line GmbH and GT-TECH Laser have been in regular contact with TÜV SÜD Industrie-Service for many years. We would particularly like to highlight the commitment of Dr. Günter Uhlig, who is always on hand to advise us as an expert.

Our client base includes not only many respected European companies (see right) but also universities and research institutions, to which we have been providing our latest lighting technology and expertise for years. Federal Minister of Labour Hubertus Heil has also taken a look at our latest technology in the past.


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Hubertus Heil in the Fraunhofer Hall with LED and laser technology
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The change of company from „GT-TECH LASER“ to „Virtual Line GmbH“ in 2023 will not be a problem for our customers, as the company headquarters, shareholders, contact persons and contact addresses will remain the same. Find out more here.

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Find us here

By phone:
+49 (0)2872 3077840

By email:
info@virtualline.de

Contact person:
Dirk Gantefort (CEO)

For initial contact, see:
Our questions for you


Our Clients:

Porsche AG

Coca Cola AG

Mercedes Benz Group

Goodyear GmbH

K & S Minerals

Siemens Energy

Fraunhofer IML

Deutsche Edelstahlwerke

Henkel AG

Nordfrost

Iglo

Lindt & Sprüngli

Bosch AG

Thyssen Krupp

Meggle

BMW Group

Sachsenmilch

Ikea

Magna

Hitachi

ABB Schweiz

Igus GmbH

Voestalpine Stahl GmbH

DB Schenker

Rhenus Warehousing

REWE Group

Nestle Schweiz

Rheinmetall

Hipp Medical

Coroplast GmbH

EFTEC AG

CHEFS CULINAR

Kubota GmbH

Rheinspan GmbH

Ubisense GmbH

Rittal GmbH

Knauf Gips KG

Hornbach AG

Opel Group

Mars GmbH

Rockwood Group GmbH

DHL Group

Rheinmetall AG

AEG GmbH

Veolia GmbH

Jungheinrich AG

Gilgen’s Bäckerei

DMK GmbH

and many more

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Dear Customers.

Upcoming company holidays: December 14, 2026, through January 4, 2027

Warm regards from
the Virtual Line Team

Virtual-Line GmbH
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