This is a list of traders, hard- & software houses and personalities which have supported the Sinclair QL over the years.

Traders

4 Systems

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A
ABC Elektronic
Abersoft
Accounting Software Limited
Adder Publishing Limited
Adman Services
AJS
Aholasoft
Anglo Services Limited
Ant Computing
Ark Distribution
Arrakis
Astracom
Athene Consultants

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B
Bedsoft
Blain Software
Brainstorm
Breakthrough Software
Buzzz Software
Byteback

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C
Camel Products
Candeas Innovations
Caravan Software
Care Electronics
Cenprime Software
CDS Software
CGH Services
Chisoft
Commpak Data
Compugem Ltd
Computer One Ltd
Computamate
Compware
Consumers Association
Co-op Soft Limited
COWO Electronic
CP Software
Creative Codeworks
CST
Cumana
Curry Computer

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D
DA Bandoo
DataGen
Datalink Systems (Wales)
Datamanagement
Data-Skip
Deltasoft
Dialog Software
Diamond Design Computer Systems
Digital Precision Ltd
Dilwyn Jones Computing
Di-Ren
DJW Software
Downsway Electronics (UK) Ltd
DS Enterprises

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E
Eidersoft
Ekotek
Elaborate Bytes
English Software
EPROM Services
Equate

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F
Firebird Software
Flite Software

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G
Games of Skill
GAP Software
Gigasoft
Gordian Computing Services
GST Computer Systems

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H
Harcourt Systems
HiSoft
Hüthig-Verlag

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I
ImaQLate Software
Impact Entertainments
Intec
Intersoft
Intraset Limited

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J
J&D Software
Javid Systems
Jochen Merz Software
Jürgen Falkenberg

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K
KAOS Software
Kempston

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L
Labochrome
Leisure Genius
Lewis Software

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M
Magnetic Scrolls
Medic Datasystems Ltd
Metacomco
Micr_A_Soft
Microdeal
MicroPeripherals
Micro Processor Engineering Ltd
Microvitec
Miracle Systems
Modem House

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N
New Horizons Software

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O
OE Limited

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P
P.C.B.S.
PCML Ltd
PCS
PDQL
Peak Electronics
Persoft Software
Portfolio Software
Positron Computing
P.P. Software
Prospero Software
Psion
Pyramide

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Q
QBranch
QCODE
Qjump
QL Supersoft
QLympic Computer Systems
Q-Soft
Quality Leader Software
QUANTA - The QL User Group
Quantum Mechanics
Quantum Soft
QubbeSoft
Quest Automation Ltd
Qview

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R
Realtime Software
Rob Roy Software
Rodent Software
Rubicon Computer Systems
RWAP Software

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S
Saltgrade Software
Sandy
SB Software
Schön
SD Microsystems
Sector Software
Sellasoft
Shadow Games
Sigma Research
Silicon Express
Simplex Data Logic Limited
Sinclair Research Ltd
SL Services
Slave Software
Snowsoft
Soft School
Softronic
Software87
SPEM
Stack Software
Stenroy Ltd
Strong Computers
Summit Software
Superplant Software
Swansoft
Systems 80 Limited

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T
Talent Computer Systems
Tandata Marketing Limited
Tasman Software Limited
TDI Software Limited
Tesseract Software
TF Services
THOR Datensysteme GmbH
THOR International
TK Computerware
Total Computability Ltd
TR Computer Systems
Tropic Software Co
Transform
Triptych

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U
Ultrasoft

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V
Victory Software

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W
WDSoftware
Whoopee
WN Richardson & Co

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X
Xenon
Xpert Software

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Y
Yorkshire Media (Software)

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Z
Zitasoft

Personalities

Andrew Pennell
Bill Richardson
Chas Dillon
Damon Chaplin
Dilwyn Jones
Jan Jones
Janko Mrsic-Flögel
Jochen Merz
Rich Mellor
Simon Goodwin
Steve Bak
Stuart McKnight
Tony Firshman
Tony Tebby
Urs Koenig