Anyone know GMA Grading?! Legit?

[MansGame]

Thanks, but my sig rotates randomly, so I'm not sure which picture you were referencing...

It was a nice black and white picture of Joe D., Mantle and Ted W. signed in blue ink... looked really clean.

 

[MartinFFcollector]

Any missing?

Many are out of business

AAA
AAI ( American Authentication Inc)
ADVANCEDGRADING.COM
AGS (Advanced Grading Specialists)
ALL STAR GRADING
ASA (Accugrade Sportscard Authentication)
ASGC (All Star Grading Company)
BCCG (Beckett Collectors Club Grading)
BCG
BEARSTATS GRADING SERVICES
BGS (Beckett Grading Service)
BGUM (Beckett Game Used Memoabilia)
Blue Chip
BRG (Best Rate Grading)
BSVA
BVG (Beckett Vintage Grading
Capital Grading
CCS (Card Collector Services)
CEX (Certified Express)
CGA (Card Grading Authenticators)
CGS (Champs Grading Service)
CLG
Compugrade
CPG (Certified Pro Grading)
CSA (Certified Sports Authentication)
CSC (Sports Card Grading Service)
CSG
CTA
EGS (Express Grading Service)
FGA
FGS (Finest Grading Service)
*** (Global Authentication Inc.) (Bankrupt)
*** (Global Authority Inc) (new owners of ***)
GEM
GEM Elite
GEM-Sports
GGI (Gem Grading Inc.)
GGS (Gem Grading Services)
GMA
GRA
GRADEMYCARDS.COM
GRADING UNLIMITED
IGX
IKON
KSA (Kressler Sports Authentication)
MAJOR LEAGUE GRADING
MAP (Screw Down Holder)
MGS (Masters Grading Services)
MGS (Mint Grading Service)
NASA (North American Sportscard Authentication)
PCCG (Pro's Choice Card Graders)
PCG (Professional Card Graders)
PGA (Professional Grading Authority)
PGC (Premier Grading Certification)
PGC (Premier Grading Company -same as above?)
PGC (Pro Grade Certified)
PGI
PGS (Professional Grading Service)
PRE-Grading Service (uses screwdowns)
Premium Sports Grading
PRO (Pro Sports Grading)
PSA (Professional Sports Authenticator)
PSA (Pacific Sports Authority)
PSG (Pristine Sportscard Grading)
PTG
RGA
SBC (Superlative Baseball Card Certification)
SCD Sports Collectors Digest (SCD) folded and was sold to Sports Card Direct (SCD)
SGC (Sportscard Guaranty)
SNAGGLETOOTH
SPA (Authenticated)
Sportscard Grading Association
STADIUM CLUB GRADING
SWG (Southwest Card Grading)
TCG
TFA (The Final Authority)
TGA
UGS
USA (Ultimate Sportscard Authority)
Verisleeve (Sticker on Card Saver)
VGR (Venture 21)
VGS
VSA
VSG Vanguard
WCG (World Class Grading)

MISC. --

MINT/ROOKIE/BLANK (Looks like PSA flip and a Mini Pre -Tech 'self slab' with locking tabs) Supposed to become Atlas Grading Inc. with a website in 2010