Square 1 Bank provided a $10.5 million credit facility to new client SparkPost, a cloud email infrastructure provider.

Proceeds from the facility will provide working capital for ongoing company initiatives.

“As the only full-featured cloud email delivery service built on Amazon Web Services, we can focus on continuing to innovate the world’s best cloud email delivery platform instead of having to deal with dated and unreliable datacenter architecture,” said Phillip Merrick, chief executive officer at SparkPost. “The confidence demonstrated by Square 1 is further proof of our position as the fastest growing cloud email provider in the market. We look forward to leveraging this capital to continue fueling our strong growth.”

“SparkPost’s remarkable success and evolution are a testament to their employees’ vision and hard work which has steadily grown the company’s notable client base, which includes Twitter, LinkedIn, Pinterest, Zillow and CareerBuilder,” added Ryan Dammeyer, managing director and head of Square 1’s Structured Finance Group.