Stripe, the software platform for adding payments capabilities to ecommerce stores, is advertising throughout Chicago’s financial district on both street ad kiosks and Chicago Transit Authority El train platforms. It’s the first B2B payments advertising I’ve seen outside of a payments or FinTech conference.

Last summer, consumer-oriented payments and FinTech firms took to transit advertising in force, as reported in our photo essay “FinTech Adversiting On the Go in Chicago.”