Armadin Security Valuation, Funding & Investors

Armadin Security is valued at $2.5B as of October 2026.

Last Armadin Security valuation

$2.5B

Series B · Oct 2026

Last Armadin Security funding round

$256M

Series B · Oct 2026

Cumulative funding Armadin Security raised

$445M

across 3 funding rounds

Key investors in Armadin Security

  • Ballistic Ventures
  • Andreessen Horowitz
  • Accel
  • Lightspeed Venture Partners
  • GV
  • Kleiner Perkins

Armadin Security Overview

About Armadin Security

Armadin Security is an AI-driven cybersecurity company focused on real-time threat hunting and detection.


Founded

2025

HQ

United StatesUnited States

Status

Privately held

Customer focus

B2B

Revenue model

Subscription

Valuation

$2.5B (Oct 2026)

Armadin Security Valuation

Armadin Security is currently valued at $2.5B, based on its Series B in October 2026. Read the announcement ↗

The $256M round was led by Accel and Andreessen Horowitz, with participation from Redpoint, Menlo Ventures, Kleiner Perkins, GV, 8VC and 3 other investors.

Armadin Security valuation by funding round

Armadin Security valuation by funding round
DateStageValuation
Oct 2026Series B$2.5B

Armadin Security Funding History

Armadin Security has raised a total of $445M across 3 funding rounds.

Armadin Security's first fundraising round was a $24M seed round in December 2025. The most recent completed round was a $256M Series B in October 2026.

Armadin Security funding rounds

Armadin Security funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Oct 2026Series BAccel (lead); Andreessen Horowitz (lead); Redpoint; Menlo Ventures; Kleiner Perkins; GV; 8VC; Ballistic Ventures; Bain Capital Ventures; IQT$256M$2.5BAndreessen Horowitz and Accel co-led Armadin’s $255.5 million Series B in October 2026, with new investors Bain Capital Ventures and Redpoint joining and existing backers 8VC, Ballistic Ventures, Google Ventures, In-Q-Tel, Kleiner Perkins and Menlo Ventures also participating. The financing valued Armadin at more than $2.5 billion and brought total funding to $445 million, with proceeds earmarked to scale its autonomous security platform, research, training and go-to-market efforts. Armadin is an AI-native cybersecurity company focused on building autonomous security agents that find weaknesses in systems, and the round came about seven months after the company emerged from stealth. The company was founded by Kevin Mandia and describes its product as agentic security for enterprise defense, positioning the business to expand its platform and commercial footprint after the new capital infusion.
Jan 2026Undisclosed stage-$165M-Armadin Security, founded by cybersecurity veteran Kevin Mandia (former Mandiant CEO), is an AI-native cybersecurity company based in San Francisco, developing an autonomous platform to defend against AI-driven 'Hyperattacks'—coordinated, machine-speed cyber campaigns. The platform features an 'agentic attacker swarm,' a network of AI agents that simulate advanced threats to identify vulnerabilities at machine speed, enabling proactive defense without human intervention. Co-founders include CTO Travis Lanham (ex-Google Cloud Security), Evan Peña (ex-Mandiant), and David Slater (ex-Google SecOps). In March 2026, Armadin raised a record-breaking $189.9 million in combined Seed and Series A funding, led by Accel with participation from Google Ventures, Kleiner Perkins, Menlo Ventures, In-Q-Tel, and follow-on investments from 8VC and Ballistic Ventures. This marks the largest such early-stage round in cybersecurity history. Funds will expand the AI-driven security platform, accelerate R&D in autonomous models, scale operations for enterprises, and hire across engineering and security research teams. Armadin positions itself to counter the shift where AI lowers barriers for sophisticated attacks, providing organizations with continuous, nation-state-level threat simulation. The round reflects strong investor confidence in Mandia's expertise and the team's AI capabilities amid rising AI-powered threats.
Dec 2025SeedBallistic Ventures (lead); Lightspeed Venture Partners$24M-Armadin is an AI-native cybersecurity platform founded by Kevin Mandia (CEO), Travis Lanham (CTO), David Slater, and Evan Peña that specializes in autonomous red teaming and offensive security testing. The platform deploys an agentic attacker swarm—a fleet of specialized AI agents that continuously reason, plan, and adapt to simulate real adversaries and identify exploitable vulnerabilities at machine speed, addressing the emerging threat of AI-driven hyperattacks that move faster than human defenders can respond. The company was first announced quietly in late 2025 with an initial seed of $24 million from Ballistic Ventures (co-founded by Mandia). On March 10, 2026, Armadin announced a combined Seed and Series A funding round totaling $189.9 million, representing the largest early-stage cybersecurity raise on record. The Series A was led by Accel with participation from Google Ventures, Kleiner Perkins, Menlo Ventures, and In-Q-Tel, alongside follow-on support from 8VC and Ballistic Ventures. The capital will be used to expand the platform, accelerate AI-driven security research and development, and scale operations to support enterprises defending against evolving cyber threats. Insiders suggest the company's valuation exceeds $700 million, though the official valuation remains undisclosed in all public filings and announcements.

Who has invested in Armadin Security?

11 investors have backed Armadin Security across its funding rounds, including Ballistic Ventures, Andreessen Horowitz, Accel, Lightspeed Venture Partners, GV and Kleiner Perkins.

Lead investors include Accel, Andreessen Horowitz and Ballistic Ventures.


Armadin Security Investors

Investors in Armadin Security by funding rounds participated
InvestorHQRoundsRoleFirst check
Ballistic VenturesUnited StatesSan Francisco, CA2LeadDec 2025
RedpointUnited StatesSan Francisco, CA1ParticipantOct 2026
Menlo VenturesUnited StatesMenlo Park, CA1ParticipantOct 2026
Kleiner PerkinsUnited StatesMenlo Park, CA1ParticipantOct 2026
GVUnited StatesSan Francisco, CA1ParticipantOct 2026
8VCUnited StatesAustin, TX1ParticipantOct 2026
Andreessen HorowitzUnited StatesSan Francisco, CA1LeadOct 2026
Lightspeed Venture PartnersUnited StatesSan Francisco, CA1ParticipantDec 2025
Bain Capital VenturesUnited StatesSan Francisco, CA1ParticipantOct 2026

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Armadin Security Competitors

Armadin Security competitors include listed companies like Tenable and Infleqtion, and private ones like unico IDtech, Dream Security, Forter and Horizon3.ai.

Public and private companies comparable to Armadin Security
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
unico IDtechBrazilSão PauloPrivate$100M-$2.6B26.0x
Dream SecurityIsraelTel AvivPrivate$100M-$3B-
ForterUnited StatesNew York City, NYPrivate$200M-$3B15.0x
TenableUnited StatesUnited StatesPublicly listed$999M$31M$4.4B4.4x
InfleqtionUnited StatesUnited StatesPublicly listed$29M($52M)$2B35.6x
Horizon3.aiUnited StatesSan Francisco, CAPrivate$30M-$2B-

Armadin Security Public Comps

Armadin Security is still privately-owned, but its public comps include Shenzhen Intellifusion, Venustech Group, Ncino, QiAnXin, NetScout Systems, InSilico Medicine Cayman, Intsig Information, SoundHound, Infleqtion and C3.ai.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Shenzhen Intellifusion$201M($3M)11.7x12.0x(779.9x)(895.4x)
Venustech Group$351M($60M)6.9x6.2x(40.3x)200.9x
Ncino$595M$65M4.5x4.2x41.0x16.0x
QiAnXin$659M($147M)4.3x4.3x(19.2x)(45.6x)
NetScout Systems$859M$163M2.1x2.0x11.1x7.5x
InSilico Medicine Cayman$56M($353M)39.1x-(6.2x)-
Intsig Information$272M$84M9.1x7.6x29.4x24.8x
SoundHound$169M$19M10.7x7.6x97.2x(24.6x)

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Common questions about Armadin Security

When was Armadin Security founded?Armadin Security was founded in 2025.
Where is Armadin Security headquartered?Armadin Security is headquartered in United States.
Is Armadin Security publicly listed?No, Armadin Security is a private, VC-backed company.
What is Armadin Security's valuation?Armadin Security was last valued at $2.5B in its Series B in October 2026.
How much funding has Armadin Security raised?Armadin Security has raised $445M across 3 funding rounds.
What was Armadin Security's last funding round?Armadin Security's last funding round was a $256M Series B in October 2026, led by Accel and Andreessen Horowitz.
Who are Armadin Security's investors?Armadin Security's investors include Ballistic Ventures, Redpoint, Menlo Ventures, Kleiner Perkins, GV, 8VC, Andreessen Horowitz, Lightspeed Venture Partners, Bain Capital Ventures, Accel and 1 other.
Which companies are comparable to Armadin Security?Companies comparable to Armadin Security include unico IDtech, Dream Security, Forter, Tenable, Infleqtion and Horizon3.ai.

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