Stripe Capital will provide cash advances to small business customers of Stripe's payment platform.
A monthly survey of approval rates finds large banks granted almost one in four small business loan applications in May.
The SEC also alleges American Growth Funding concealed from investors that many of its loans were non-performing.
The fast-growing industry has been facing increased scrutiny amid concerns over whether borrowers fully understand the terms of their loans.
The banking giant gets access to On Deck's technology platform for making small-dollar loans to small businesses.
OnDeck Capital grew its portfolio of small business loans and lines of credit by $369 million in the fourth quarter but still reported a net loss.
Credit-card solutions vendor square lands funding from Victory Park Capital for its merchant-lending effort.
