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Startup · United States

RunSybil

HQ San Francisco, CaliforniaFounded 202311-50 employeesUpdated

RunSybil is an autonomous offensive security solution.

Website

Funding1 round · $40.0M

Equity raised
$40.0M
Latest
$40.0MStage undisclosed · Mar 18, 2026
  • Undisclosed
    Speculative
    $40.0M
    Mar 18, 2026

Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.

Capabilities1

  • Developer
    classify_sectors run 37, haiku, taxonomy 2026-10-18b: Autonomous offensive security platform for enterprises, falling under the cyber technology area with no defense customer stated.
    —Reported

Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.

People
PersonRole
Ari Herbert-VossCEO and cofounder
Vlad IonescuCTO and cofounder

Sources5

Profile3

  1. 1

    Sixth-Domain · Supports Organization · country, Organization · kind

    “{"country": "USA", "hq_iso2": "US", "id": "ea7fa50b-9d5f-4cfa-a171-4f2ad1d8be1c"}”
  2. 2

    LinkedIn · Supports Organization · employee range, Organization · founded year, Organization · hq city, Organization · hq region, Organization · ownership

    “employee_range: 11-50 (profile: 11-50 employees)”
  3. 3

    RunSybil · Supports Organization · description, Organization · name, Organization · website

    “RunSybil is an autonomous offensive security solution. Find exploitable vulnerabilities before a breach, eliminate noise, and remediate at enterprise scale.”

Funding1

  1. 4

    parsers.vc · Supports Funding round · amount

    “Offensive security startup RunSybil Inc. said today it has closed on a $40 million round of funding”

People1

  1. 5

    RunSybil · Supports Role

    “It is a skillset that is notoriously difficult to find," said Vlad Ionescu, CTO and cofounder of RunSybil.”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.