
Structural engineering for reinforced concrete, steel, composite and timber construction in building construction, industrial construction and civil engineering structures.
FINCK BILLEN Ingenieurgesellschaft GmbH & Co. KG
CologneNew on Amplifa
About FINCK BILLEN Ingenieurgesellschaft
FINCK BILLEN Ingenieurgesellschaft GmbH & Co. KG is an engineering office for structural design and construction engineering based in Cologne, founded in 1952 by Dipl.-Ing. Heinz Bonow. The focus of its services is the design, structural analysis and execution planning of load-bearing structures in reinforced concrete, steel, composite and timber construction, including formwork and reinforcement drawings as well as 3D/BIM planning in accordance with VDI 2552. The office handles new-build, conversion and refurbishment projects, assesses existing structures and specialises in the restoration of historic buildings and heritage conservation. Clients include, among others, the High Cathedral of Cologne, Deutsche Bahn AG, DLR as well as municipalities and housing companies. Since 2021 the company, with 19 employees, has been part of the IGS Group headquartered in Weimar, which offers additional planning services such as building diagnostics, surveying and quality assurance in steel construction.
- Site
- Cologne
- Processes
- Structural engineering (HOAI §51 Lph 1-6), Preparation of structural calculations, Preparation of execution drawings (formwork and reinforcement drawings, 3D/BIM), Assessment of existing structures / refurbishment planning / heritage conservation, BIM planning (Building Information Modeling, IFC models, BIM coordination according to VDI 2552), Bridge structure planning, Quality assurance in steel construction, Building diagnostics
- Materials
- Reinforced concrete, Steel, Composite construction, Timber / cross-laminated timber
- Founded
- 1952
- Employees
- 19
- Industries
- Building construction, Industrial construction, Logistics construction, Residential construction, Hotels, Senior care facilities
- 01
Design of load-bearing structures
- 02
Structural calculations
- 03
Execution planning (formwork and reinforcement drawings, 3D/BIM)
- 04
Assessment / refurbishment planning
- 05
Involvement in construction execution
Construction types and materials
Reinforced concrete
Structural concrete constructions, e.g. walls, slabs and bracing cores as at the Offene Schule Köln.
Steel
Design, analysis and execution planning of steel load-bearing structures and quality assurance in steel construction.
Composite construction
Composite constructions as an economical construction method in building and industrial construction.
Timber / cross-laminated timber
Timber and timber-hybrid buildings such as schools and residential buildings made of cross-laminated timber slabs and walls.
Location

Cologne
DEHead office, structural engineering
- Materials
- Reinforced concrete, steel, composite, timber
- CAD software ALLPLAN (Nemetschek)
- FEM software
- BIM software BIMcollab, Solibri, BIMvision
Projects and structures









Inside the production








Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Structural engineering (HOAI §51 Lph 1-6)Engineering | – | – | – | – | Reinforced concrete, Steel, Composite, Timber |
| Preparation of structural calculationsEngineering | – | – | – | – | – |
| Preparation of execution drawings (formwork and reinforcement drawings, 3D/BIM)Engineering | – | – | – | – | Reinforced concrete, Steel, Composite, Timber |
| Assessment of existing structures / refurbishment planning / heritage conservationEngineering | – | – | – | – | – |
| BIM planning (Building Information Modeling, IFC models, BIM coordination according to VDI 2552)Engineering | – | – | – | – | – |
| Bridge structure planningEngineering | – | – | – | – | Reinforced concrete |
| Quality assurance in steel constructionTesting | – | – | – | – | Steel |
| Building diagnosticsTesting | – | – | – | – | – |
| SurveyingTesting | – | – | – | – | – |
| Construction management / project managementEngineering | – | – | – | – | – |
| Civil engineering structures / transport infrastructure planningEngineering | – | – | – | – | – |
Additional services
Reference customers
History
- 1952
Foundation of the engineering office for structural analysis and construction engineering by Dipl.-Ing. Heinz Bonow in Cologne.
- 1968
Dipl.-Ing. Lothar Finck takes over the office after Bonow's death; first international commissions.
- 1982
Expansion of IT; first FEM programs on PC, among others for floor slabs at the excavations at Cologne Cathedral.
- 1987
Peter F. Billen joins the office; first CAD-based formwork and reinforcement drawings.
- 1996
Peter F. Billen becomes managing director.
- 2001
Company renamed FINCK BILLEN Ingenieurgesellschaft GmbH & Co. KG.
- 2009
Bridge structure planning for Deutsche Bahn AG (Remscheid station); switch to 3D planning as preparation for BIM.
- 2015
School construction projects as well as conversion and extension of Michaelsberg Abbey in Siegburg.
- 2021
Part of the IGS Group headquartered in Weimar; expansion of the Cologne office premises.
- 2025
Christoph Tech becomes managing director; Peter F. Billen moves to project management; team of 19 employees.