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Corelight develops a network visibility solution for information security professionals. The Corelight Sensor appliance is built on Bro, the powerful and widely-used open source framework that provides real-time understanding of all the traffic on a network to detect and stop cyber attacks.

HQSanta Clara, CA, US

Latest Updates

Employees (est.) (Jul 2021)170(+2%)
Job Openings14
Cybersecurity ratingBMore

Key People/Management at Corelight

Penny Defrank

Penny Defrank

VP People
Seth Hall

Seth Hall

Co-Founder & Chief Evangelist
Russ Keefe

Russ Keefe

VP Finance
Brian Dye

Brian Dye

CEO and Director
Vern Paxson

Vern Paxson

Co-Founder & Chief Scientist
Gareth Green

Gareth Green

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Corelight Office Locations

Corelight has offices in Santa Clara, Columbus and San Francisco
Santa Clara, CA, US (HQ)
2880 Lakeside Dr #130
Columbus, OH, US
150 E Campus View Blvd #220
San Francisco, CA, US
22 4th St #6, San Francisco
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Corelight Financials and Metrics

Summary Metrics

Founding Date


Corelight total Funding

$84.2 m

Corelight latest funding size

$50 m

Time since last funding

2 years ago

Corelight investors

Corelight's latest funding round in October 2019 was reported to be $50 m. In total, Corelight has raised $84.2 m
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Corelight Cybersecurity Score

Cybersecurity ratingPremium dataset



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Corelight Online and Social Media Presence

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Corelight News and Updates

Corelight Appoints Julie Parrish as New Chief Marketing Officer

SAN FRANCISCO, July 21, 2021 /PRNewswire/ -- Corelight, provider of the industry's first open network detection and response (NDR) platform, today welcomed Julie Parrish as its new chief marketing officer to help scale customer demand and acquisition as well as lead global branding,...

Corelight raises $50 million to monitor networks for intruders

Corelight, a startup developing cybersecurity solutions atop the open source Zeek project, has raised $50 million in venture capital.

Garland Technology and Corelight Announce Technology Partnership

NEW YORK, Oct. 16, 2018 /PRNewswire/ -- Garland Technology, a leading provider of network and test access solutions, today announced a technology partnership with Corelight, provider of the most powerful network visibility solution for cybersecurity. "Combining Corelight's network...

Corelight Blogs

Telegram Zeek, you’re my main notice

Notices in Zeek Zeek’s Notice Framework enables network operators to specify how potentially interesting network findings can be reported. This decoupling of detection and reporting highlights Zeek’s flexibility: a notice-worthy event in network A may be run-of-the-mill in network B. Much like detec…

What’s next for the National Cyber Director?

By Jean Schaffer, Federal CTO, Corelight As the first National Cyber Director begins to settle into office, private industry is very hopeful that this will be one of the turning points to solidify a true private/public partnership for raising the cybersecurity posture of the U.S. As I mentioned in m…

Why is PrintNightmare hard to detect?

By Yacin Nadji and Ben Reardon, Corelight Security Researchers CVE-2021-1675, also tracked in CVE-2021-34527, is a remote code execution vulnerability that targets the Windows Print Spooler service. In a nutshell, there is a Distributed Computing Environment / Remote Procedure Call (DCE/RPC) that al…

Corelight Sensors detect the ChaChi RAT

By Paul Dokas, Keith Jones, Anthony Kasza, Yacin Nadji, & Vern Paxson – Corelight Labs Team Recently Blackberry analyzed a new GoLang Remote Access Trojan (RAT) named “ChaChi.” This sample was interesting in that it tunnels information over DNS as its preferred command and control (C2) mechanism…

Detecting CVE-2021-31166 – HTTP vulnerability

By Ben Reardon, Corelight Security Researcher In this blog we aim to provide a little insight into part of the lifecycle of Corelight Lab’s response to a critical HTTP vulnerability. We’ve open-sourced many such responses over the last year (see Appendix A), and this one is a good demonstration of t…

What the Cyber EO means for federal agencies

By Jean Schaffer, Federal CTO, Corelight For those of us who have spent our careers working in cybersecurity, President Biden’s recent “Executive Order on Improving the Nation’s Cybersecurity,” (EO) held no surprises. However, it is a step toward accelerating the modernization of public and private …
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Corelight Frequently Asked Questions

  • When was Corelight founded?

    Corelight was founded in 2013.

  • Who are Corelight key executives?

    Corelight's key executives are Penny Defrank, Seth Hall and Russ Keefe.

  • How many employees does Corelight have?

    Corelight has 170 employees.

  • Who are Corelight competitors?

    Competitors of Corelight include ExtraHop Networks, Airbus CyberSecurity and IronNet Cybersecurity.

  • Where is Corelight headquarters?

    Corelight headquarters is located at 2880 Lakeside Dr #130, Santa Clara.

  • Where are Corelight offices?

    Corelight has offices in Santa Clara, Columbus and San Francisco.

  • How many offices does Corelight have?

    Corelight has 3 offices.