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About us


For over 30 years, Filtrop has been one of the leading suppliers of high-quality optics and thin-film components manufactured under high vacuum.

Our core competence is consulting, manufacturing and delivery of products according to customer-specific design. We supply from single pieces to prototypes and small and medium series.

We supply globally active equipment manufacturers in medical technology, diagnostics, analytics, color measurement technology, etc.

Our customers appreciate Filtrop’s long-term experience, high professional competence, short reaction times and fast and reliable delivery dates.

As a rule, we work with annual orders and thus guarantee short call-off dates with corresponding stock keeping.

The Filtrop AG team consists of 7 people.


You are looking for a high-quality optical component? Then we are the right partner for you. Our path to problem solving:

  • Comprehensive advice
  • Support in design and specification
  • Production according to specification of samples, prototypes and series products
  • Quality control according to customer requirements

Our strengths / Philosophy

  • Highest quality: as high as desired
  • On-time delivery: for annual orders we create a buffer stock – short call-off times
  • Attractive prices
  • Flexibility for custom-made products

Mission statement

Filtrop AG is the leading manufacturer of high-quality optical filters and components according to customer design. Applications: mainly in laboratory diagnostics, research, analytics, medical technology and industry.

Our customers appreciate

  • Our cost awareness, our high professional competence and adherence to delivery dates
  • The short decision paths and our fast and flexible actions

For us quality means

  • Strict compliance with agreed specifications
  • Permanent fulfilment of market and customer requirements

The manners of our employees are characterized by

  • Honesty and mutual respect
  • A trusting cooperation in all areas and with all partners

Occupational safety / health protection

  • Open communication and regular training
  • Compliance with all safety-relevant specifications and laws

The protection of the environment is a basis for all entrepreneurial decisions. We protect the environment by

  • Consciously and sustainably handling the resources used
  • Reducing environmentally hazardous substances and agents to an absolute minimum

Code of Conduct

The company Filtrop acts according to the following Code of Conduct, which is based on international standards for fair business:


Filtrop is located in a modern factory building on Landstrasse 16 in Balzers in the Principality of Liechtenstein, in the heart of Europe.


We are certified

  • Medical devices according to EN ISO 13485:2016
  • Quality management according to ISO 9001:2015
  • Environmental management according to ISO 14001:2015

5 reasons for Filtrop: