ISO lending is the origination and placement model that powers much of the alternative commercial finance industry in the United States. An ISO — Independent Sales Organization — is an entity that markets financing products to business owners, collects applications, gathers documentation, and submits completed deal packages to funders or lenders for approval. When a funder approves and funds a deal, the ISO earns a commission.
The term "ISO" has its roots in the payment processing industry, where independent sales organizations sold credit card processing services on behalf of card networks and processors. In commercial finance, the term was adopted because the structure is similar: a third party originates relationships and deals on behalf of the capital provider, earning a transaction-based commission rather than a salary.
The critical distinction is that ISOs in commercial finance do not lend their own money. They are origination and placement intermediaries. The funder underwrites the credit risk, funds the deal from its own capital, and services the account. The ISO's job is to find and qualify appropriate borrowers, assemble the application package, and match the deal to the right funder within their network.
ISO lending operates across a wide range of commercial finance products, including merchant cash advances, short-term and medium-term business loans, lines of credit, equipment financing, accounts receivable financing, invoice factoring, and SBA loan referrals. The specific products an ISO focuses on depend on their funder relationships, their client base, and the credit profiles they encounter most frequently.
For referral partners — CPAs, equipment vendors, consultants, or other professionals who occasionally encounter clients needing financing — understanding the ISO lending model matters because it defines the network you are tapping into when you refer a deal. The ISO or ISO network that receives your referral is the entity responsible for submitting, placing, and managing the deal on behalf of your client.