Corelight

Corelight is a cybersecurity company based in San Francisco, California, founded in 2013. It specializes in network detection and response (NDR) solutions that turn network and cloud activity into actionable insights for security teams. Co-founded by Dr. Vern Paxson and Dr. Greg Bell, who are known for creating Zeek®, Corelight offers advanced sensors that provide deep visibility into network traffic to identify and investigate various cyber threats, including ransomware and insider threats. The company's technology integrates insights from Zeek and Suricata, along with innovations in VPN monitoring and encrypted traffic collection. Corelight's solutions leverage machine learning, behavioral analytics, and threat intelligence to enhance threat detection and incident response. Their AI and SaaS-driven NDR platforms have seen significant growth, with a notable increase in revenue and offerings. Corelight serves a diverse global customer base, including Fortune 500 companies and major government agencies, and is recognized for its trusted technology used by elite cybersecurity teams.

Computer & Network Security San Francisco, United States Founded 2016 ~324 employees Private · Series E

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Employees
324
+9.8% in the 3 months to Jun 2025
Revenue / employee
$303K
Revenue ~$98.2M
Total funding
$309M
Last round Series E, Apr 2024
12-month attrition
6.2%
Tech: 4.9%
H1B filings, FY2025
17
Sponsors visas
Open jobs
7
Last 30 days

Headcount trend

Corelight went from 190 employees in Jul 2023 to 324 in Jun 2025. Jan to Jun 2025: 79 people joined, 8 left.

Headcount data through Jun 2025

Org structure

Headcount by department

Engineering109
Other100
Sales55
Marketing20
Operations16
Finance7
Product7
Success4

Hiring now

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Salaries at Corelight

All salaries

7 salary profiles in the US

Most reported roles

Pay by level, gender and ethnicity

H-1B sponsorship

H-1B Sponsorship Limited
H-1B Filings by Department
Engineering20
Operations5
IT1
Sales1

The department split adds up all the years listed above. FY2025 alone: 17 filings.

Funding

  • Apr 2024 · Series E · $150M · Accel, Cisco Investments, CrowdStrike Falcon Fund
  • Sep 2021 · Series D · $75M · Energy Impact Partners, H.I.G. Growth Partners, Capital One Ventures
  • Oct 2019 · Series C · $50M · Insight Partners, Accel
  • Sep 2018 · Series B · $25M · General Catalyst
  • Jul 2017 · Series A · $9.2M · Accel, Riverbed Technology, Osage University Partners

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Corelight FAQ

How many employees does Corelight have?

Corelight has about 324 employees, up 9.8% over the 3 months to Jun 2025.

Does Corelight sponsor H1B visas?

Yes. Corelight filed 17 H1B (LCA) applications in FY2025, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.

What is Corelight's revenue per employee?

Corelight makes about $303K in revenue per employee, based on $98.2M annual revenue and 324 employees.

How much does Corelight pay?

6figr has 7 salary profiles for Corelight in the US, with pay broken down by role, level, gender and ethnicity on the Corelight salaries page. See Corelight salaries

How much funding has Corelight raised?

Corelight has raised $309.2M in total funding; its latest round was Series E in Apr 2024.

Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.