Beckett Authentication Services has authenticated millions of collectibles since 2005, with over 2 million authentications in 2024 alone. The standard for music memorabilia and sports cards, Beckett's QR-coded hologram COAs are trusted by collectors and auction houses globally.

James Spence Authentication (JSA) is the industry standard for autograph authentication. Trusted by Heritage Auctions, Christie's, and PWCC, JSA has authenticated pieces from Hendrix, Elvis, Taylor Swift, and The Beatles. Their serialized stickers link to a searchable online database.

Professional Sports Authenticator / DNA is the largest autograph authenticator in North America with 3M+ verified autographs since 1999. Their proprietary invisible DNA ink is applied to every signed item, providing forensic-grade verification that lasts indefinitely.

Space memorabilia's gold standard. Steve Zarelli has personally authenticated pieces from Apollo astronauts, serving collectors like the Smithsonian Institution and top-tier auction houses. His rigorous in-person and photographic review is the benchmark for flight-flown artifacts.

Verisart is the leading blockchain-based certification platform for fine art. Founded 2015 and backed by Sotheby's Ventures, Verisart issues tamper-proof digital COAs for over 500,000 artworks, trusted by galleries and contemporary artists worldwide.

TrueCOA provides blockchain-secured authentication for high-value collectibles. Each piece is minted as a verifiable NFT on Polygon, creating an immutable ownership record that follows the work forever. Every TrueCOA asset also carries a traditional physical COA for dual-layer assurance.