Paint/Pigment Manufacturer

AS = Art Spectrum
BR = Blueridge
BX = Blockx
CL = Classic, Triangle Coatings
DS = Daniel Smith
DR = Daler-Rowney
DV = Da Vinci
DB = Dick-Blick

DG = Daniel Green 
GB = Gamblin
GO = Golden
GR = Grumbacher
GU = Guerra Paint & Pigment
HO = Holbien
KA = Kama Pigments
KP = Kremer Pigmente  (USA site)

LB = Lefranc & Bourgeois
LQ = Liquitex
LK = Lukas
MA = Maimeri
MG = M. Graham
MH = Michael Harding
MR = MIR , Jaurena Art
MW = Martin/F. Weber Co.

NP = Natural Pigments
OH = Old Holland
RH = R&H Handmade Paint
RGH = RGH Artists' Oil Paints
RT = Royal Talens
SH = Shiva
SE = Sennelier

SI = Sinopia 
SM = Schmincke
SQ = Steven Quiller
TA = Tri-Art 
UT = Utrecht
WL = Williamsburg
WN = Windsor & Newton