What do we stand for?
We are specialists for project control, general planning, building construction planning, structural planning and local construction supervision, especially for architecturally demanding buildings and technically challenging infrastructure projects. Our 66 employees identify with their tasks and actively shape the company. We are a trustworthy partner for our customers.



Foundation of the Company
DI Dr. Thomas Lorenz

First Major Project
Structural engineering and site supervision for Vienna Air Traffic Control Tower

TLO goes International
Structural engineering for the OIC Tower in Saudi Arabia

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

House of Engineers Graz
Construction of our own office building in Graz

Expansion of Management
DI Roland Reichl and DI Jürgen Kraker join the management

TLO goes BIM
First fully digital construction site and implementation of a BIM process

Expansion of Ownership Structure
The company gets broadly based

Establishment of the Department General Planning & Building Construction
One-stop-shop! The service portfolio is expanded to include building construction planning

What distinguishes us?
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.


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.

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.
