Corelight, a provider of an open network detection and response (NDR) platform, has secured $75 million in a Series D funding round led by Energy Impact Partners (EIP).

In addition to new investor H.I.G. Growth Partners and strategic investment from Capital One Ventures, CrowdStrike Falcon Fund, and Gaingels, previous investors Accel, General Catalyst, Insight Partners, and Osage University Partners joined the round. Corelight has received a total of $160 million to date, with this newest round allowing the company to expand its global market presence as well as develop additional data and cloud services.

“This latest investment is a powerful affirmation not only of the network detection and response category, but also of our open source heritage, data-centric approach, and commitment to customer success. I am grateful for our investors’ partnership as we help organizations around the world move to a data-driven security strategy,” said Brian Dye, CEO of Corelight.

Investor in charge EIP is an international investment platform supported by a strong coalition of forward-thinking utilities and partner organisations, with a concentration on cybersecurity, digital transformation, utility infrastructure, and the broader energy transition.

“EIP’s focus on critical infrastructure providers is highly aligned with both our mission and market traction. Helping these institutions defend against increasingly sophisticated attackers is essential given their role in society and the economy,” said Dye.

“Corelight’s strong NDR technology, rooted in open source, has had a significant impact across industries and is rapidly becoming the de-facto standard for sophisticated defenders. We look forward to supporting them as they expand their existing footprint within the sustainable energy, manufacturing and other critical infrastructure sectors,” said Shawn Cherian, partner at EIP.

“Corelight helps some of the world’s most advanced companies protect and secure their networks from cyber threats. By leveraging Zeek, the industry’s leading open-source data platform, Corelight is uniquely positioned to help security operations teams become more efficient in threat inspection, response, and remediation. We have been incredibly impressed by the company’s exceptional growth and are excited to partner with a world-class organization,” said Scott Hilleboe, managing director at H.I.G. Growth Partners.

“These strategic investors mirror our strategy, market focus and values as an organization. Each brings a unique perspective that will improve our ability to deliver data-centric security,” said Dye.

“Corelight and CrowdStrike’s strong shared commitment to data-centric security makes this a strong fit within the Falcon Fund portfolio. We are excited to support Corelight’s continued innovation in the NDR category and the growth of their new data and cloud offerings. As cyber threats increase in number and complexity, the importance of solutions like Corelight have never been greater, providing increased visibility and comprehensive data that allows organizations to identify vulnerabilities and resolve security issues faster,” said Michael Sentonas, CTO at CrowdStrike.

“We root our decisions on which companies we invest in based on the impact we believe those companies will have on their customers. Partnering with Corelight in this round is a natural extension of the work we have been doing with open source NDR tools and the investments we have been making in strong cyber security solutions. We are thrilled to work with Corelight on new opportunities,” said Jay Emmanuel, partner at Capital One Ventures.

“As the largest investor network focused on supporting and investing in the best venture-backed companies that embrace and value diverse leadership, including LGBTQ+, Gaingels is proud to be participating in this financing round with Corelight. Our team is resolved on helping the company grow and scale while strengthening its prospects of success by building a culture that reflects the diversity of its executive teams, staff and customers,”said Lorenzo Thione, managing director of Gaingels.