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Founded1919; 105 years ago (1919)
  • Dr. Franz Thomastik
  • Otto Infeld

Thomastik-Infeld is an Austrian company based in Vienna that develops and produces strings and rosins for bowed and fretted string instruments, including the violin, viola, cello, contrabass, and guitar.

The company still makes "Dominant" strings, one of the earliest brands of perlon string, now considered a standard for comparison to other synthetic string sets. Other string brands from the company include:

  • Vision
  • Spirocore
  • Versum
  • Superflexible
  • Belcanto
  • Infeld (Red and Blue)
  • Prazision
  • Alphayue
  • Peter Infeld
  • Dominant Pro

Many famous violinists, including Itzhak Perlman, Hilary Hahn, and Isaac Stern, have used Thomastik-Infeld strings at some point in their career.[1]


In 1919, Dr. Franz Thomastik, a violin maker, and Otto Infeld, a civil engineer, decided to found a company. They started manufacturing steel strings.

Thomastik-Infeld's workshops were completely destroyed in World War Two.

In 1970, the Dominant strings were launched. In those years, the conventional gut string was challenged by perlon strings; Thomastik-Infeld offered this type of string, making the brand very popular for virtuosi across the world.

The company was run by Peter Infeld from 1994 until his death on April 15, 2009 at 67 years old. The company is now run by Zdenka Infeld.

In 2019, Thomastik-Infeld celebrated its 100 year anniversary by launching https://www.stringtelligence.com/.

In 2021, the Dominant Pro strings were launched.

In 2023, the DYNAMO strings were launched.[3] As part of the campaign, Thomastik-Infeld partnered with Tonic to launch a practice challenge for participants to win sets of the new strings.[4]


  1. ^ "Famous Violinst's [sic] String Brand Choices (Interesting!) | Violin Strings | Violin Strings". 20 January 2018. Retrieved 2021-08-04.
  2. ^ bitslice.at, nikpichler com, freigeist at. "Thomastik-Infeld Vienna". www.thomastik-infeld.com. Retrieved 2021-08-04.{{cite web}}: CS1 maint: multiple names: authors list (link)
  3. ^ Thomastik to Release New 'Dynamo' Violin Strings in mid-March. 15 February 2023.
  4. ^ Tonic Challenge: Win DYNAMO violin strings. 2023 March 13.

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