Solid

Solid is a full-stack banking-as-a-service platform that provides fintech companies and enterprises with the infrastructure to build deposit accounts, card programs, and lending products through a unified API. Founded in 2018 and headquartered in San Jose, California, the company has raised over $63 million in funding. Solid serves more than 50 fintech customers across consumer and B2B financial product segments, providing a comprehensive BaaS stack including account management, card issuance, ACH, compliance, and lending infrastructure.\n\nSolid's platform differentiates through its breadth — covering the full range of financial product types from a single integration rather than requiring customers to assemble capabilities from multiple vendors. Its card issuing module handles both virtual and physical debit and credit cards with programmable spend controls. The lending infrastructure supports personal loans, business credit lines, and BNPL product configurations. An account management layer provides multi-currency deposit accounts, ACH, and wire capabilities with built-in KYC and AML compliance.\n\nSolid has focused on serving fintech startups and mid-market platforms that need a comprehensive embedded finance stack without the complexity of managing multiple bank partnerships and infrastructure vendors. The company's compliance framework is configurable to different risk profiles, allowing customers to tune KYC and AML parameters to their specific market segment. Solid's 2025 roadmap has emphasized deeper credit infrastructure capabilities and cross-border payment support to serve fintechs with international user bases.