There are a lot of speaker companies out there! I’ve compiled a list of most.
I’ve put all of them in gold that offer a 20 year warranty.
Acora
Alta
Amphion
Apertura
ATC
Audience
Audio Note
Audio Physic
Audiovector
Avantgarde
Borreson
Bose
B&W
Bryston
Buchardt
Burmester
Cabasse
Canton
Castle
Crystal
Dali
Definitive
Devore
Dutch & Dutch
Dynaudio
Eikon
Elac
Emotiva
Estelon
Falcon
Fluance
Focal
Fyne
Gallo
Gamut
German Physics
Gershman
Gobel
GoldenEar
Goldmund
Graham
Gryphon
Harbeth
Janszen
JBL
Joseph
Kef
Kharma
Klipsch
Larsen
Legacy
Linn
LSA
MK
Magico
Magnepan
Manger
Marten
Martin Logan
MBL
McIntosh
Meridian
Mission
Monitor Audio
Muraudio
Nola
Ohm
OMA
Orb
Paradigm
Perlisten
Piega
PMC
Polk
ProAc
PS Audio
PSB
Quad
Raidho
Ref 3A
Revel
Rockport
Rogers
Rosso Fiorentino
Salk
Scansonic
Siltech
Sim Audio
Sonus Faber
Sound Lab
Spendor
Stein
Stenheim
T&A
TAD
Tannoy
Technics
Tekton
Tidal
Totem
Triangle
Tyler
Vandersteen
Vienna
Vemberg
Vivid
Von Schweikert
Voxative
Watkins
Wharfedale
Wilson
Wilson Benesch
Yamaha
YG Acoustics
Zellaton
Zu