MPMaster PromoterConvention & autograph directory

Directory

Signing & authentication

Mail-in programs, witnessed signings, and third-party authenticators.

15 companies

Runs private celebrity signings year-round and operates the official autograph pre-order program at major conventions; HQ Roanoke, TX with a second location in…

Mail-in: Yes

Signing & authentication

Autograph collecting destination: signings, exclusive inventory, monthly auction and authentication (SWAU); private signings with celebrities, plus item-signing…

Mail-in: Yes

Signing & authentication

Arranges and schedules autograph signing sessions with talent via the talent's agent/manager, witnesses every autograph, and sells hand-signed editions (Our Sto…

Signing & authentication

n.a. — no company by this exact name could be confirmed from a fetched page. Closest confirmed operators: Autograph Pros, L.L.C., which creates and participates…

Signing & authentication

Parent company of Official Pix — private celebrity signings and convention autograph pre-order/send-in programs (Official Pix About); named in the Official Pix…

Mail-in: Yes

Signing & authentication

Dealer in collectible entertainment art — comic book art, covers and pages, comic strip art, painted covers, animation cels, backgrounds, storyboards; buys, sel…

Card and memorabilia retailer that hosts in-store athlete signings (e.g. Bruce Smith, Sept 16, 2026) and hosts JSA authentication drop-off events at its store (…

Third-party autograph authentication across all genres and eras, online verification of certified autographs, optional Letters of Authenticity, and Beckett Witn…

Mail-in: Yes

Autograph authentication company (a Certified Collectibles Group company operating alongside CGC); accepts appointment-based in-person submissions at its New Je…

Signing & authentication

Autograph authentication and grading (ink analysis, autograph structure analysis, side-by-side comparison, video spectral comparator, encapsulation, public cert…

Signing & authentication

Witnessed signature authentication, grading and encapsulation for comics, magazines, posters and prints signed in front of a CGC representative or CGC Authorize…

Signing & authentication

Dedicated send-in arm of Monopoly Events: order an 8×10 to be signed at a Monopoly Events convention and posted out, or send your own item in; quotes/character…

Mail-in: Yes

Signing & authentication

n.a. — no official site could be confirmed in this session (infinityautographs.com did not resolve)

Signing & authentication

Sells autographed items with a documented verification process and detailed certificate of authenticity for each item (The Autograph Planet)

Signing & authentication

Sells 100%-guaranteed authentic autographed memorabilia, trading cards, signed photos, helmets and collectibles, with hologram-number authenticity verification…