Investment firms LLR Partners, NewSpring Capital and PNC agreed to invest $180m in SparkPost, the world's largest email sending and optimization platform. "Email has proven to be the most cost-effective and reliable marketing and customer engagement channel. Rich and the entire SparkPost team have built impressive momentum throughout 2020 and our investment will help support company growth and its position as a leader in the enterprise email marketing space. We are thrilled to be a part of their journey to help deliver tangible value and customer success to enterprises globally," David Reuter, LLR Partner.