Please note that this is a company listing not a brand listing, for the latter see: Brands & trademarks

Arpeggiones
Wishnevsky Instruments.

Arpeggione strings
Bernd Kürschner.

Cellos (Violincellos)
Aitchison & Mnatzaganian — Aubert Lutherie — Barnes & Mullins — Beijing Eternal — Bobak Violino — Classic Violins — Conn-Selmer — David T. Van Zandt — Edrevi Workshop — Emanuel Wilfer — Gatchell Violins Co. — Gewa Music — GTRC Services — Ifshin Violins — Jonaco Violins — JR Music Supply — Karl Höfner — Kolstein — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Mare Vasile — Metropolitan Music Company — Proel — Roder — Rudolph Fiedler — Shanghai Chaobo Musical Instruments Co. — Shar Products — Shimro — Steinigke Showtechnic — Strunal — Suzuki Violin Co. — Team International Co. — Tiange Violin Co. — Tropical Music Export Enterprises — Walter Mahr — Wishnevsky Instruments.

Companies that have made cellos in the past
Kiso Violin.

Baroque cellos
David T. Van Zandt — Walter Mahr.

Piccolo cello strings
Bernd Kürschner.

Electric cellos
Proel.

Cello strings
Barnes & Mullins — Bernd Kürschner — Cavanaugh Company — D'Addario & Co. — Fröjel Strings AB — Galli Corde Musicali Srl. — GTRC Services — Izzo — Jargar Strings — JR Music Supply — Larsen Strings — Lien Violins Instruments Ltd. — Olympia Strings — Pirastro — Pyramid — Rotosound — Savarez — Shar Products — Thomastik-Infeld — Warchal.

Cello bows
Barnes & Mullins — CodaBow — Distribuidora Gonher — Gatchell Violins Co. — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Izzo — JR Music Supply — Karl Höfner — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Penzel — Petz Kolophonium — P&H Bows — Roder — Shar Products — Shimro — Steinigke Showtechnic — Strunal — Team International Co. — Tiange Violin Co. — Walter Mahr.

Companies that have made cello bows in the past
Metropolitan Music Company — P&H Enterprises.

Baroque cello bows
Walter Mahr — Penzel.

Cello pickups
David Gage String Instruments — Fishman — Soho Acoustics.

Double basses (Contrabass, upright bass, orchestral bass)
Beijing Eternal — Classic Violins — Conn-Selmer — David Gage String Instruments — Edrevi Workshop — Emanuel Wilfer — Gatchell Violins Co. — Georges Alloro — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Ifshin Violins — Jan Knooren — Jonaco Violins — JR Music Supply — Karl Höfner — Kolstein — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Mare Vasile — Metropolitan Music Company — Proel — Rudolph Fiedler — Shanghai Chaobo Musical Instruments Co. — Shar Products — Shimro — Strunal — Suzuki Violin Co. — Team International Co. — Tiange Violin Co. — Tianjin Jinbao — Tropical Music Export Enterprises — Walter Mahr.

Companies that have made double basses in the past
Kiso Violin — Metropolitan Music Company.

Strings for double basses
Barnes & Mullins — Cavanaugh Company (DB + Upright) — D'Addario & Co. — E. & O. Mari Inc. — Galli Corde Musicali Srl. — GHS Strings (Upright) — GTRC Services — Guangzhou Pearl River Piano Group Co. — Guangzhou Romance Musical Instruments — Izzo — Jargar Strings — JR Music Supply — Kolstein — Lien Violins Instruments Ltd. — Morgan Instrument — Olympia Strings — Optima Musiksaiten — Pirastro — Pyramid — Rotosound — Savarez — Shar Products — Thomastik-Infeld.

Strings for small double bass
Savarez .

Bass bows
Barnes & Mullins — CodaBow — David Gage String Instruments — Gatchell Violins Co. — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Izzo — JR Music Supply — Karl Höfner — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Penzel — Roder — Shar Products — Shimro — Steinigke Showtechnic — Strunal — Team International Co. — Tiange Violin Co..

Companies that have made bass bows in the past
Metropolitan Music Company.

Baroque bass bows
Penzel.

Double bass pickups
David Gage String Instruments — Fishman — K & K Sound Systems — Soho Acoustics — Underwood Pickups.

Violone strings
Bernd Kürschner — Pyramid.

Baryton (Pariton/Celliton) strings
Bernd Kürschner.

Octobass strings
Bernd Kürschner .

Violas
Aubert Lutherie — Barnes & Mullins — Beijing Eternal — Bobak Violino — Classic Violins — Conn-Selmer — David T. Van Zandt — Edrevi Workshop — Gatchell Violins Co. — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Ifshin Violins — JR Music Supply — Karl Höfner — Kolstein — Lien Violins Instruments Ltd. — Mac Corporation — Mare Vasile — Metropolitan Music Company — Proel — Roman Glogowski — Rudolph Fiedler — Shar Products — Shimro — Strunal — Shanghai Chaobo Musical Instruments Co. — Suzuki Violin Co. — Roder — Team International Co. — Tiange Violin Co. — Tropical Music Export Enterprises — Walter Mahr.

Companies that have made violas in the past
Kiso Violin .

Baroque violas
David T. Van Zandt — Walter Mahr.

Electric violas
Proel.

Viola strings
Barnes & Mullins — Bernd Kürschner — Cavanaugh Company — D'Addario & Co. — Fröjel Strings AB — Galli Corde Musicali Srl. — GTRC Services — Guangzhou Pearl River Piano Group Co. — Guangzhou Romance Musical Instruments — Izzo — Jargar Strings — Jonaco Violins — Larsen Strings — Lien Violins Instruments Ltd. — Olympia Strings — Pirastro — Pyramid — Rotosound — Savarez — Thomastik-Infeld — Warchal.

Viola bows
Barnes & Mullins — CodaBow — Distribuidora Gonher — Gatchell Violins Co. — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Izzo — JR Music Supply — Karl Höfner — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Penzel — Petz Kolophonium — P&H Bows — Roder — Shar Products — Shimro — Strunal — Team International Co. — Tiange Violin Co. — Walter Mahr.

Baroque viola bows
Walter Mahr — Penzel.

Companies that have made viola bows in the past
Metropolitan Music Company — P&H Enterprises.

Strings for small/childrens violas
Savarez — Pyramid.

Octave viola strings
Cavanaugh Company.

Viola pomposa strings
Bernd Kürschner — Pyramid.

Viola pickups
David Gage String Instruments — Fishman — K & K Sound Systems — .

Viola da Gamba (Viol)
Walter Mahr — Wishnevsky Instruments.

Viola da Gamba strings
Cavanaugh Company — E. & O. Mari Inc. — Pirastro.

Pardessus strings
Bernd Kürschner — Pyramid.

Treble viola strings
Bernd Kürschner — Pyramid.

Tenor viola strings
Bernd Kürschner — Pyramid.

Viola d'Amore strings
Bernd Kürschner — Pyramid.

Viola da Gamba bows
Penzel — Walter Mahr.

Viola da Gamba pickups
Underwood Pickups (Bass viol only).

Electric viola da gamba's
Ruby Instruments.

Lyra da Gamba strings (Lirone, lira de gamba)
Bernd Kürschner.

Violin octet family strings
Cavanaugh Company.

Violins
Aubert Lutherie — Australis Music — Barnes & Mullins — Beijing Eternal — Bobak Violino — Bruce Sexauer —ChangShu Huasheng — Classic Violins — Conn-Selmer — David T. Van Zandt — Distribuidora Gonher — Edrevi Workshop — Emanuel Wilfer — Gatchell Violins Co. — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Ifshin Violins — Jonaco Violins — JR Music Supply — Karl Höfner — Kiso Violin — Kolstein — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Mare Vasile — Maxtone — Metropolitan Music Company — Morgan Instrument — Proel — Roder — Roman Glogowski — Rudolph Fiedler — Shanghai Chaobo Musical Instruments Co. — Shar Products — Shimro — Steinigke Showtechnic — Strunal — Sung-Eum Music Co. — Suzuki Violin Co. — Team International Co. — Tiange Violin Co. — Tianjin Jinbao — Tropical Music Export Enterprises — Viva La Musica — Walter Mahr — Young Chang.

Violin strings
Barnes & Mullins — Bernd Kürschner — D'Addario & Co. — Fröjel Strings AB — Galli Corde Musicali Srl. — Generation Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Guangzhou Romance Musical Instruments — Izzo — Jargar Strings — Kagan & Gaines Music Co. — Larsen Strings — Lien Violins Instruments Ltd. — Olympia Strings — Optima Musiksaiten — Pirastro — Pyramid — Rotosound — Savarez — Shar Products — Steinigke Showtechnic — Thomastik-Infeld — Warchal.

Quinton strings
Bernd Kürschner.

Violin bows
Barnes & Mullins — CodaBow — Distribuidora Gonher — Gatchell Violins Co. — Gewa Music — GTRC Services — Guangzhou Pearl River Piano Group Co. — Izzo — JR Music Supply — Karl Höfner — Laubach — Lien Violins Instruments Ltd. — Mac Corporation — Penzel — Petz Kolophonium — P&H Bows — Roder — Shar Products — Shimro — Steinigke Showtechnic — Strunal — Team International Co. — Tiange Violin Co. — Walter Mahr.

Baroque violin bows
Walter Mahr — Penzel.

Companies that have made violin bows in the past
Metropolitan Music Company — P&H Enterprises.

Strings for small/childrens violins
Savarez — Pyramid.

Fiddle strings
Bernd Kürschner — Cavanaugh Company — GHS Strings.

Octave violin strings
Cavanaugh Company.

Violin octet family strings
Cavanaugh Company.

Baroque violins
David T. Van Zandt — Walter Mahr.

Medieval fiddles (vielles)
Paul Hathway.

Companies that have made medieval fiddles in the past
Chris Elmes.

Medieval bows
Chris Elmes
Besides fiddles these bows can be used with a host of other medieval instruments.

Fandur strings
Bernd Kürschner.

Violin pickups
David Gage String Instruments — Fishman — K & K Sound Systems — Soho Acoustics.

Electric violins
ChangShu Huasheng — David Gage String Instruments — Fender — Karl Höfner — Kiso Violin — Mac Corporation — Paul Hathway — Proel — Shar Products — Tianjin Jinbao — Viva La Musica.

Electroacoustic violins
Proel.

Computer violin interfaces
Keith McMillen Instruments.

Violin DIY kits
Hosco.

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