SparkPost is the world’s #1 email sender, trusted to send 37% of the world's B2C email. Our data-driven platform optimizes email performance and helps leading enterprises drive top-line results.
Zillow, Quorum, Zip Recruiter, Financial Times, ClickMechanic, Guardian, Comcast, Career Builder, Twitter, Kayak, LinkedIn, Paypal, Zynga, The New York Times, Ebates, Hubspot, Oracle, Marketo, Intercom, Iterable, Tobi, Houzz, Cordial Intelligent Messaging