Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.

Checkout Page - Sell on your site with customizable checkouts. Tailor-made one page checkouts to sell digital products & services without an ecommerce store.

Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything

CartHero - Recover abandoned checkouts with SMS, discounts, and customer service

Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.