“Can a blockchain-based payment processing platform build a defensible end-to-end fintech stack for merchants by combining tokenized ledger infrastructure with embedded banking and payments?”
Originally incorporated in Nevada in 2007 as ASAP Expo Inc., the company was repurposed and rebranded as GreenBox POS after acquiring the blockchain payments business GreenBox POS LLC in 2020. The company repositioned as a fintech focused on proprietary blockchain-based payment processing, using smart-contract token infrastructure and immutable ledgers to record tokenized cash transactions. GreenBox tapped Signature Bank as the banking partner for its smart-contract token infrastructure, reflecting its ambition to build a full-stack financial product suite on blockchain rails.
Greenbox discloses Signature Bank (sponsor/banking partner) as its banking provider, with Signature Bank as its sponsor bank, according to the Embedded Finance Index 2026.
Greenbox does not disclose a bank charter of its own; its banking services are provided through Signature Bank.
Greenbox processes payments through GreenBox POS Blockchain Payment Services (self-operated).
The Embedded Finance Index 2026 maps 3 layers in Greenbox's stack: Payments / PSP (GreenBox POS Blockchain Payment Services (self-operated)); Banking / BaaS (Signature Bank (sponsor/banking partner)); Sponsor bank (Signature Bank).
Greenbox is founded in 2018 and headquartered in San Diego, California, USA.
Get a read on where your own stack stands against Greenbox and the rest of its category — what they built versus bought, which providers they use, and where the gaps in your own strategy and competitive set actually are.