The Series C funding round was led by venture capital firm Octopus Ventures, with participation from Passion Capital, Industry Ventures, and several others.
Total investment in the six-year-old company – jointly headquartered in London and San Francisco – now stands at $49 million (£36 million).
“This funding event is a huge milestone for Digital Shadows,” said Alastair Paterson, CEO and cofounder of Digital Shadows, in a statement.
Digital Shadows said it intends to use the money to expand into new countries and improve its flagship product, SearchLight, which can continuously monitor over 100 million data sources in around 30 languages across the internet. Sources include social media, crime forums, GitHub, and encrypted “dark” nets such as Tor and I2P.
“Digital Shadows has shown phenomenal growth across all verticals and geographies with a world-class range of partners and clients,” said Octopus Ventures investor Will Gibbs in a statement. “We are very excited about what the team have shown themselves capable of and for the wider opportunity, as we see a wide range of clients now increasing digital risk as a key priority.”