NebuSec is a privately held company. It is backed by 1 investor on record, including Y Combinator.

Who are NebuSec's competitors?

ZAST.AI, Recx, and XLabs Security are among the closest in Application Security. The full competitive set, with overlap scoring, is in the platform.

What products does NebuSec sell?

NebuSec sells NebuSec Vulnerability Index.

NebuSec

Application Securityfounded 2026privatenebusec.ai ↗

NebuSec is a cybersecurity company specializing in Application Security, founded in 2026. It has raised $500K in equity across 1 priced round, employs about 8 people, and is privately held.

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updated Oct 23, 2026

Latest NebuSec news and company activity

What NebuSec did, dated — selected moves from the record, one per kind, newest first.

Aug 2026RecognitionNebuSec Wins kernelCTF with 99% Exploit Stability
Jul 2026Product launchNebula Security: Bringing beyond Mythos protection to your product

14 events tracked since May 2026 · selected events shownUnlock the complete NebuSec timeline

NebuSec Momentum score

67/ 100

Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.

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NebuSec products

NebuSec Vulnerability IndexPublic database of vulnerabilities and CVEs discovered by NebuSec's research teamDetails ↗

NebuSec funding

NebuSec has raised $500K in priced equity. Its most recent round was a Pre-Seed in July 2026. Y Combinator is the one investor on record.

Equity raised: $500K1 priced round
Last round: Pre-SeedJul 2026

View the complete funding history

NebuSec employees and hiring

As of September 2026, NebuSec has about 8 employees.

Employees: 8
Open roles: 0

See hiring trends

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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security
Competitorsfull set, overlap scored
Leadershipevery exec, with roles
Customersnamed publicly, with sources
Reviews & newssentiment, coverage, cadence

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Funding, round by round, with the investors
Headcount, hiring and the people
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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Application Security

Common questions about NebuSec.

How much funding has NebuSec raised?: NebuSec has raised $500K in priced equity. Its most recent round was a Pre-Seed in July 2026. Y Combinator is the one investor on record.
How many people work at NebuSec?: As of September 2026, NebuSec has about 8 employees.
Who owns NebuSec?: NebuSec is a privately held company. It is backed by 1 investor on record, including Y Combinator.
Who are NebuSec's competitors?: ZAST.AI, Recx, and XLabs Security are among the closest in Application Security. The full competitive set, with overlap scoring, is in the platform.
What does NebuSec do?: NebuSec is a cybersecurity company specializing in Application Security, founded in 2026.
What products does NebuSec sell?: NebuSec sells NebuSec Vulnerability Index.