From Venture Beat’s coverage:

PeakSpan Capital led the round, and existing investors Upfront Ventures and High Alpha also joined the round. Cordial said it has doubled both customer and revenue growth within the last year, and it will use the new funds to expand its multi-channel capabilities, including mobile, browser notifications, and web forms, in order to meet the needs of marketers.

Venture Beat quotes PeakSpan co-founder and managing partner Phil Dur:

“There’s no doubt that Cordial is and will continue to be a category-defining company. Jeremy and team had the deep industry knowledge and keen foresight to anticipate how the email service provider industry would evolve, and the impressive tech chops to get out in front of it. We’re excited to partner with them as they continue to evolve the company to meet the needs of tomorrow’s marketer.”

Venture Beat: Cordial raises $15 million for next-gen email marketing platform