Company
Website
Notes
1st Graded
https://www.1stgraded.com/
AAA
http://www.aaagrading.com
Screw down cases
Ace Grading
https://acegrading.com
Pokemon Grading
ACU-CARD Inc
???
AGS / AdvancedGrading.com
http://advancedgrading.com
All Star Grading
???
Screw down cases
All-Star Grading Co
???
Arena Club
https://arenaclub.com/
Co-founded by Derek Jeter
ASA (Accugrade Sportscard Authentication)
http://www.asa-accugrade.com
ASGA (All Star Grading & Authentication)
https://allstarcerts.com
Authentic Enterprises Inc.
http://rfingers34.com
Rollie Fingers Backed
BCCG (Beckett Collectors Club Grading)
https://www.beckett.com/grading
BCG (Best Card Grading)
???
BGN Collection
http://bgncollection.com
Chinese Grader
BGS (Beckett Grading Service)
https://www.beckett.com/grading
Blue-Chip Sports Co.
???
BRG (Best Rate Grading)
???
Screw down cases
BSGS (Bearstats Grading Services)
http://www.bearstats.com
BSVA
http://bsvagrading.com
Screw down cases
BVG (Beckett Vintage Grading)
https://www.beckett.com/grading
C3 Grading
https://c3grading.com/
Capitol Grading
???
CCS (Card Collector Services)
http://www.ccs-cards.com
Collection Monster?
CEX (Certified Express)
http://www.certifiedexpress.com
CG (Collectors Grade LLC)
https://collectorsgrade.net
CGA (Card Grading Australia)
https://www.cardgradingaustralia.com
CGS (Champs Grading Service)
???
CGS (Cosmic Grading Services)
https://cosmicgrading.com
UK Based
CLG
https://esacard.tripod.com/id6.html
Screw down cases
Compugrade
???
Company Went Under
COR (Cor Grading Servies)
???
CPG (Certified Pro Grading)
???
Can't find Proof
CSA (Certified Sports Authentication)
???
Company Went Under / Oldest Grading Company
CSC (Chamber Sports Card Graded)
???
Screw down cases
CSG (Certified Sports Guaranty)
https://www.csgcards.com
CTA (CTA Grading Experts)
http://www.ctagradingexperts.com
DCI (Dynamic Card Innovation
https://dcigrading.com/
DCS (Dallas Card Show)
https://www.dallascardshow.com/dcs-grading
Degree Grading
https://degreegrading.com/
DGA (Diamond Grading & Authentication)
https://www.diamondauthentic.com/
DSG (Diamond Service Grading)
https://www.dsggrading.com/
Formerly BSG (Best Service Grading)
ECG (Elite Card Grading)
https://www.elitecardgrading.com
ECG (Elite Card Grading) 2
https://www.ecgcard.com
Edge Grading
https://www.edgegrading.com
European Grading
https://www.europeangrading.com/en
FCG (Forensic Card Grading)
https://fcggrading.com/
FGA (Foremost Grading Authority)
???
Company Went Under
FGS (Finest Grading Service)
http://www.finestgrading.com
FIVE Star GRADING
https://fivestargrading.com
Flawless Grading Co
http://www.flawlessgrading.com
GAI (Global Authentication Inc.) (Global Authority)
http://www.gacard.net
GEM (GEM Elite) (Gem Grading Inc.)
http://www.gemgrading.net
http://www.startcollecting.com
GMA Grading
https://gmagrading.com
Golden Grading
https://goldengrading.com
GRA (Graded Rookies Authenticated)
???
Screw down cases
GRAAD
https://www.graad.eu/en/
GRADEMYCARDS.COM
http://grademycards.com
https://grademycards.weebly.com/
Grading Unlimited
???
HGA (Historic Grading & Authentication)
http://www.hgacard.com/
HGA (Hybrid Grading Approach)
https://hybridgrading.com
IGX
???
IKON
???
Screw down cases
ISA (Sports Authentication)
https://www.sportsauthentication.com
https://www.otia.com
KSA (Kressler Sports Authentication)
https://www.ksagrading.com
MAP
http://MAPRated.com
Screw down cases
MGC (Majesty Grading Company)
https://www.majestygrading.com
MGS (Masters Grading Services)
???
Company Went Under
MGS (Mint Grading Service)
http://www.mintgrading.com
Company Went Under
MNT
https://mntgrading.com
Canadian Grader
NASA (North American Sportscard Authentication)
http://cybcity.com/nasa
Screw down cases
Next Level Grades
https://nextlevelgrades.com/
PCA (Professional Cards Authenticator)
https://pcagrade.com/en/
European Grader
PCCG (Pro's Choice Card Graders)
???
Company Went Under
PCG (Pocket Card Grading)
https://www.facebook.com/PocketCardGrading
PCG (Premier Card Grading)
https://premiercardgrading.com
Mostly Alternative Type Cards
PCG (Professional Card Graders)
http://www.cardgraders.com
Company Went Under
PG Grading (Pokegrade)
https://www.pokegradeuk.co.uk/
Based in UK
PGA (Professional Grading Authority)
???
Maybe still grading?
PGC (Premier Grading Company)
http://www.premier-grading.com
http://pgc.iwarp.com/
PGC (Pro Grade Certified)
http://prograding.com
Company Went Under
PGI (Pristine Grading International)
https://pgigrading.com
PGS (Platin Grading Service)
https://platin-grading.de/en/
German Grading Service
PGS (Professional Grading Service)
http://pgsgrading.com
Redirects to
http://igsgrading.com/
Philly Sports Shop
http://phillysportsshop.com
Player 1 Services
https://www.playeroneservices.com/
PRE-Grading Service (uses screwdowns)
???
Can't find Proof
Prime Sports Grading
???
Company Went Under
PRO (Pro Sports Grading)
http://www.prograding.net
Trimmed Cards Being Graded :(
PRO Choice Grading
???
Screw down cases
PSA (Professional Sports Authenticator)
https://www.psacard.com/services/tradingcardgrading
PSG (Premium Sports Grading)
???
Premium
PSG (Pristine Sportscard Grading)
???
Can't find Proof
PTG Grading Service
???
Pure Graded X
https://puregradedx.com/
Carsyn Cruz
RCG (Revolution Card Grading)
https://revolutiongrading.com/
RGA (Retro Grading Authentication)
http://rgagrading.com
SBC (Superlative Baseball Card Certification)
???
One of the Original Grading Companies
SCD (Sports Cards Direct)
???
SCD (Sports Collectors Digest)
https://sportscollectorsdigest.com/cards/grading-cards
SGC (Sportscard Guaranty)
https://gosgc.com
SMA (Sports Memorabilia Authenticator)
???
Snaggle Tooth
http://snaggletoothgrading.com
Company Went Under
SPA (Supreme Product Authentication)
???
SVCG (Southern Values Card Grading)
https://www.southernvaluescardgrading.com/
SWG (Sports World Grading)
http://sportsworldgrading.com
TAG Grading (Technical Authentication & Grading)
https://taggrading.com
High-end AI Grading
TFA (The Final Authority)
http://www.tfagrading.com
TGA (The Grading Authority)
https://thegradingauthority.com
TGT (Transparent Grading Team)
http://www.transparentgradingteam.com
USA (Ultimate Sportscard Authority)
http://usasportscards.com
Company Went Under
Vault Authentics
https://vaultauthentics.com/
Verisleeve
http://www.verisleeve.com
Sticker on Card Saver
VGS
???
VSA (VS Autographs)
https://vsautographs.com
WCG (World Class Grading)
http://www.worldclassgrading.com