SMBX is a FINRA-registered funding portal and public marketplace for issuing and buying U.S. small business bonds. Its focus is on small business debt, specifically the SBA loan market. SMBX helps high-quality businesses raise money by issuing bonds to people instead of taking out a loan. The company also operates the first small business capital marketplace where small business bonds are issued and sold to investors for a rate of return. SMBX was founded in 2016 and is headquartered in San Francisco, California.