Enraf-Nonius started a long time ago: one hundred years, a whole century!

Enraf was founded in 1925 by A.G. Hoekstra as the Eerste (which is Dutch for First) Netherlands Röntgen Apparatus Factory, so the original name is an acronym!

The factory was originally located in Rijswijk, The Netherlands, but moved to Delft in 1928. The prime focus in that period was röntgen equipment. But in 1932 the first device for diathermy was released, the Curatis. This is a very early predecessor of the Curapuls 670!

Enraf focussed primarily on development and production of röntgen tubes. During the second world war, the Enraf factory in Delft was largely destructed.

In the reconstruction period after the war, the former owner of Enraf, A.G. Hoekstra, started a new company in 1948, named Nonius.

A "nonius" is a vernier scale , a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation. Hoekstra recognized the need for precision measurement instrumentation and specialized accordingly in his new company.

The company Enraf experienced difficult times and merged with the English company Evershed & Vignoles to Evershed Enraf in 1955.

Enraf adds diffraction cameras to it's product package.

Nonius specializes in precision measurement instrumentation.

Evershed-Enraf specialized in measurement and control technology. Nonius, as producer of precision mechanical instrumentation, was a good partner and hence they merged in 1965 to Enraf-Nonius.

An emerging business for Enraf-Nonius was tank gauging equipment. But also medical units were produced, especially for physiotherapy and rehabilitation.

This was partly related to the recognition of the profession of physiotherapy in the Netherlands at that time. In 1965 the Paramedical Professions Act embraced the Dutch Society for Physiotherapy, as of 1965 a recognized medical profession. The profession was growing, and the technology needed for it was expanding! And Enraf-Nonius could supply!

In 1970 the Enraf-Nonius Medical Distribution Centre (MDC) was relocated from Delft to Brunssum. All the national and international logistic activities were centralized in the south of the Netherlands.

The eighties and nineties were a period of expansion and diversification for Enraf-Nonius. Many international branch offices were founded, and several companies were acquired (such as Kipp&Zonen, Bos, Vosco Electronics and Linido Group).

The business diversity incorporated:

• Medical Instrumentation
  • Physiotherapy and Rehabilitation
  • Support for Disabled
  • Dental
  • Chiropody
• Medical Imaging
  • Diagnostic X-Ray
• Industrial Instrumentation
  • Inventory Management Systems
• Scientific Instrumentation
  • X-Ray diffraction
• Laboratory Instrumentation
• Data communications
• Electronic Measurement & Quality Control

In 1990 Enraf-Nonius became part of the Delft Instruments Holding and the Enraf-Nonius part was renamed to Delft Instruments Medical Equipment (DIMEQ).

Enraf-Nonius started exporting products in the fifties.
It gradually expanded and became the major activity in the eighties.
Today we serve over 120 countries worldwide.

The medical division separated from Delft Instruments Holding and joined Henley Healthcare (Austin, TX, USA) up to 2000. Then Enraf-Nonius became fully independent.

As an independent company, Enraf-Nonius focussed on medical rehabilitation and physiotherapy, with three major product lines:

• Electro physical agents (formerly known as electrotherapy);
• Treatment and examination couches
• Medical rehabilitation

The period after 2000 is characterized as in innovative time with many new products and applications.

In this period, Enraf-Nonius also accelerated with a project division, EN-Projects. Numerous major turnkey healthcare projects were realized. These projects were characterized by excellent all round equipment supply, including healthcare professionals education and after sales service organization at a local level.

In 2005 Enraf-Nonius also moved the logistic centre from Brunssum to a brand-new facility in Echt, the Netherlands.

Thanks to our innovative drive, our awareness of quality, our committed employees, our worldwide distributors network, our loyalty to our customers and our healthy commercial spirit, Enraf-Nonius has conquered an extremely strong market position. This position can be maintained thanks to continued strategic collaboration with good partners and a passionate commitment.

In 2025 we celebrate our 100 years anniversary. And together with a strong partner, the Zimmer Enraf Group, we are ready for the future.

Enraf-Nonius is a great company with a very strong focus. We are proud of our huge range of products, developed in-house, and marketed all over the world by our professional team. Worldwide well-known brandnames are Sonopuls, Curapuls, Endomed and Manumed. They are part of our history and the cornerstone of our future. Many of our products are in their fifth or sixth generation already, complying with the latest regulatory demands and embracing the latest technological possibilities.

And there is more to come. The spirit of being the best in this area has been driving Enraf-Nonius as the leader in the market for equipment for medical movement specialists for a century. And a hundred years? This is only the beginning!