Last updated 2026-07-26
- Acquired by Tenable for $147M, Jan 2025
Total raised
—
Last: Undisclosed Round 2023-11
Stage
Acquired
Founded
2018
Headcount
100
HQ
Tel Aviv-Yafo, Israel
Sector
Cyber Security
About
Vulcan Cyber breaks down organizational cyber risk into measurable, manageable processes to help security teams go beyond their scan data and actually reduce risk. With powerful prioritization, orchestration and mitigation capabilities, the Vulcan Cyber risk management SaaS platform provides clear solutions to help manage risk effectively. Vulcan enhances teams' existing cyber environments by connecting with all the tools they already use, supporting every stage of the cyber security lifecycle across cloud, IT and application attack surfaces.
Vulcan Cyber was named a cool vendor in Cool Vendors in Security and Risk Management, 2019 by the Gartner Research Group.
Headcount over time
100 employees (2026-09) · 1 point
Offices
Tel Aviv-Yafo, Israel · HQ / main office
Show all offices (1 more)
- San Francisco, United States
Q&A
- What is Vulcan Cyber's primary business?
- Vulcan Cyber develops a vulnerability remediation platform designed for exposure management programs, centralizing, prioritizing, and reducing enterprise cyber risk across the entire attack surface.
- When was Vulcan Cyber acquired and by whom?
- Vulcan Cyber was acquired by Tenable in January 2025 for an amount of $147,000,000.
- What was Vulcan Cyber's last funding round before its acquisition?
- In November 2023, Vulcan Cyber raised $34,000,000 in a B Round, with lead investors.
- Who are the founders of Vulcan Cyber?
- The co-founders of Vulcan Cyber are Yaniv Bar-Dayan (Co-founder & CEO), Tal Morgenstern (Co-founder & CSO), and Roy Horev (Co-founder & CTO).
- How many employees did Vulcan Cyber have prior to its acquisition?
- Vulcan Cyber had 51–200 employees.
- Where is Vulcan Cyber headquartered?
- Vulcan Cyber is headquartered in Tel Aviv-Yafo, Israel, with an additional office in San Francisco, USA.
- What was a notable recognition for Vulcan Cyber in 2019?
- Vulcan Cyber was named a Cool Vendor in Security and Risk Management by the Gartner Research Group in 2019.
- What is the total amount of funding Vulcan Cyber raised before its acquisition?
- Vulcan Cyber raised a total of $70,000,000 in funding.
Team · 4
Yaniv Bar-Dayan
Founder · Co-founder & CEO
Tal Morgenstern
Founder · Co-founder & CPO
Roy Horev
Founder · Co-founder & CTO
Rhett Glauser
Chief Marketing Officer
Sectors & technology
Primary sector
Cyber Security
Sub-sectors
Cyber SecurityGRC & Vulnerability
Technologies
Platforms & InterfacesWebSoftware
Target customers
Enterprise & Professional ServicesEnterprises
Business model
B2B
Highlights
Verified
Tags
application-securitycyber-securityenterprise-securityorchestrationvulnerability-managementsecurity-operationsrisk-management
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | vulcan.io |
|---|---|
| linkedin.com/company/18660237 | |
| facebook.com/VulcanCyber | |
| YouTube | youtube.com/channel/UC6uFJVudF-sFPG1zERlhOKA |
Identifiers & details
| Founded | 2018-2 |
|---|---|
| Employees (exact) | 100 |
| Offices | San Francisco |
| Status reason | Acquired (Inactive) by Tenable on Jan 2025 - closed due to acquisition |
Acquisitions & public offerings
Acquired by Tenable 2025-01 $147.0M
Radar intelligence
Web history (Wayback)
| Domain | vulcan.io |
|---|
Certificate / subdomain footprint
| Subdomains | 16 |
|---|
Israeli Companies Registrar (רשם החברות / ICA)
| Registrar # (ח.פ.) | 515797876 |
|---|---|
| Status | מחוסלת עקב מיזוג — CLOSED |
| Corp type | ישראלית חברה פרטית |
| Incorporated | 2018-02-13 |
| Purpose | לעסוק בכל עיסוק חוקי |
| Liability | מוגבלת |
| In violation (unfiled) | no |
| Last annual report | 2025 |
| Active charges / liens | 0 |
| Registry events | 3 — merger (1), charge (2) |
| Registered address | דה וינצ'י לאונרדו 2 תל אביב - יפו |
Recent registry events
| Date | Event |
|---|---|
| 2026-01-28 | מיזוג מרצון חברת יעד |
| 2025-10-20 | סילוק שעבוד |
| 2025-10-20 | סילוק שעבוד |