sovrn Holdings, Inc., a Boulder, Colo.-based provider of advertising solutions to 50,000 websites, closed an $18m funding round.
The round was led by Foundry Group with participation from Oak Investment Partners, Archer Venture Acquisitions and John Battelle.
The company intends to use the funds to accelerate both organic and inorganic growth opportunities.
Led by Walter Knapp, CEO, sovrn provides independent publishers with tools and services to better understand, grow and engage their readers and enable them to monetize their sites through programmatic advertising.
The company also has offices in Denver, San Francisco and New York.