A passion for innovative solutions.

3defacto is a service provider for sophisticated designs and product developments, delivering turnkey projects in the fields of mechanical engineering, plant engineering, and software. With us, you benefit from the advantages of customised solutions from a single source.

“We’re a team that works together to find innovative, professional, and qualitative solutions for our customers. No matter what task we’re given, we implement it. In short, we are the product – from the technical engineer to the designer.”

Peter Ahlmer, CEO 3defacto

From individual optimisation recommendations to the implementation of complex plants: since our founding in 2000, we have successfully completed several thousand projects worldwide. 3defacto stands for flexible, customised services and engineering quality “Made in Germany”.


  • Founded in 2000, more than 20 years of experience
  • Locations: Darmstadt, Mühltal and Neuenkirchen-Vörden
  • 80 employees
  • Plant operations conform to the Water Resources Act
  • Worldwide project handling
  • SolidWorks certified


  • CNC turning centre and 5-axis milling centre
  • Welded constructions
  • Electrical department with switch cabinet construction
  • SPS programming department
  • Hydraulics department
  • Measuring room
  • Technical centre


  • Pharmaceutical industry
  • Chemical industries (polyurethane, adhesives, prepolymers, paints and varnishes)
  • Bulk goods processing industries
  • Food industry
  • Building materials industry
  • Paper industry
  • Clothing industry
  • Logistics and distribution
  • Automotive, agricultural machinery, tyre industry
  • General mechanical engineering and special mechanical engineering

This is what you can expect from us

Economical, energy-saving and customer-optimised products

  • High-quality special-purpose engineering, e.g. the patented BBU 2000 big bag emptying station
  • Specialist network with qualified partners and suppliers
  • On-schedule, cost-secure implementation of projects at a fixed price
  • Compliance with applicable standards and directives (e.g. Machinery Directive, Water Resources Act)
  • Satisfaction guarantee for new customers
  • Excellent price-performance ratio