Siris Capital portfolio company Digital River divests wholly-owned subsidiary BlueHornet

SAN DIEGO – Dec. 8, 2015 – BlueHornet Networks, Inc., a leading provider of SaaS-based email marketing software and services, today announced that it was acquired by Marlin Equity Partners, a global investment firm with over $3 billion of capital under management. The acquisition will enable BlueHornet to accelerate investment in its products and services to enhance value creation for customers. Through its multi-tenant technology platform and full service customer support, BlueHornet empowers marketing teams in any size organization to create and launch sophisticated, data-driven email marketing campaigns, optimize outreach and delivery performance and maximize marketing ROI. The company serves a global client base of enterprise, SMB and reseller customers across a variety of industries, including retail, technology, media and publishing, gaming, electronics and hospitality.

Michael Biwer, BlueHornet’s CEO, stated, “With Marlin, we have gained a strategic partner who shares our vision and excitement for the substantial market opportunity that exists within the email marketing industry. As an independent company, we are now well-positioned to execute on our growth plan with greater speed, focus and innovation and to accelerate and improve the value proposition we bring to our customers and partners.”

“BlueHornet’s email marketing platform has a proven track record of successfully helping businesses drive ROI and increase the lifetime value of their customers,” stated Jonah Sulak, a partner at Marlin. “BlueHornet represents an outstanding platform for growth and we look forward to supporting the management team and providing the financial and operational resources to help the business succeed as a standalone company.”

About BlueHornet

BlueHornet helps companies reach their email potential with a unique combination of enterprise-scale email marketing solutions and award-winning services. From emerging businesses to Fortune 500 companies, BlueHornet’s customers rely on the company’s powerful, intuitive cloud-based technology platform to implement highly-targeted lifecycle messaging programs that optimize email marketing ROI. The company was founded in 2000 and is located in San Diego, CA. Contact BlueHornet for more information at 866-586-3755 or; visit or follow @bluehornetemail on Twitter.

About Siris Capital Group, LLC

Siris Capital is a leading private equity firm focused on making control investments in data,
telecommunications, technology and technology-enabled business service companies in North America. Integral to Siris’ investment approach is its partnership with exceptional senior operating executives, or Executive Partners, who work exclusively with Siris to identify, validate and operate investment opportunities. Their significant involvement allows Siris to partner with management to add value both operationally and strategically. To learn more, visit us at