Corelight, a network cybersecurity platform developer based on UC Berkeley technology, will use the cash to accelerate product development, research, sales and marketing.

Corelight, a US-based network traffic monitoring platform developer spun out of University of California (UC), Berkeley, has attracted $50m in a series C round co-led by venture capital firm Accel and private equity firm Insight Partners.
Founded in 2013, Corelight has modified an existing network traffic monitoring platform called Zeek to incorporate features such as third-party integrations and compatibility with Corelight’s virtual sensors, which act as trigger points for action when installed on the client’s systems.
Originally known as Bro, Zeek aims to flag up malicious cybersecurity threats by comprehensively surveilling network data activity. It was invented in 1995 by Corelight’s chief scientist Vern Paxson, a professor of computer science at UC Berkeley then working for the UC-managed Lawrence Berkeley National Laboratory.
Corelight will employ the series C capital to accelerate its plans for product development, research, sales and marketing. It has  raised approximately $84m in funding to date.
The spinout secured $25m in a September 2018 series B round led by General Catalyst for which additional investors were undisclosed, adding to a $9.2m series A transaction closed in 2017 that was led by Accel with contributions from Osage University Partners and angel investor Steve McCanne.