Company

What do we stand for?

We are specialists in project management, general planning, structural design, structural engineering and local construction supervision, especially for architecturally demanding buildings and technically challenging infrastructure projects. Our 70 employees identify with their tasks and actively shape the company. We are a trustworthy partner for our customers. We are a trustworthy partner for our customers.

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Foundation of the Company

DI Dr. Thomas Lorenz

July 2003

First Major Project

Structural engineering and site supervision for Vienna Air Traffic Control Tower

September 2003

TLO goes Inter­national

Structural engineering for the OIC Tower in Saudi Arabia

May 2008

Further Development

Conversion to 3D-planning and establishment of the façade department

July 2009

House of Engineers Graz

Construction of our own office building in Graz

March 2010

Expansion of Management

DI Roland Reichl and DI Jürgen Kraker join the management

May 2015

TLO goes BIM

First fully digital construction site and implementation of a BIM process

September 2017

Expansion of Ownership Structure

The company gets broadly based

February 2018

Establishment of the Department General Planning & Building Construction

One-stop-shop! The service portfolio is expanded to include building construction planning

February 2020

Increase HDI

Our modern office building was extended by 1 floor

December 2020

Extension of shareholders

September 2023
Eingang Büro Kaiserfeldgasse © Thomas Lorenz ZT GmbH

Opening of our Downtown Office

Kaiserfeldgasse 7/ 1st Floor, 8010 Graz

November 2023
© google

New Office Location in Vienna

Stiftgasse 21/ Top 29, 1070 Wien

November 2024

What distinguishes us?  

We combine high social skills with handshake quality and positive team spirit. We also think outside the box and always see the big picture in a project. As technicians, we think clearly structured and work according to well-considered quality standards.

Our Team

We are a dynamic, powerful team of well-trained, motivated youngsters and experts with many years of experience. We are a women-friendly office - the proportion of women in our company is 40%, which is very high compared to other industries. 
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Unternehmen Team
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Our social skills

We actively promote the development of our employees' social skills and offer regular in-house workshops on current topics. A humane and respectful approach and competent implementation of our projects are equally important to us.

Our practice­related quality­management

We have developed a quality management system and defined the internal standards according to our extensive project experience. This supports our employees in their daily work and helps us to focus on the essential, namely the professional performance for our customers.
Unternehmen-pruefung

Our values

We keep questioning traditional approaches. This makes us innovative and full of ideas for the benefit of our customers. We live in partnership, respectful and friendly dealings with colleagues, project partners and clients. Respect and fairness are important values for us. A solution-oriented access to tasks is important to us. We think creatively and interdisciplinary, we implement new technologies quickly.

CONTACT
US NOW

We answer your questions quickly and reliably.
Contact

Offices:

Graz, Wien

Contact:

+43 316 819 248

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