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- Armadin Security
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
Website
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
| Date | Stage | Valuation |
|---|---|---|
| Oct 2026 | Series 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
| Date | Stage | Investors | Raised | Valuation | Deal Summary |
|---|---|---|---|---|---|
| Oct 2026 | Series B | Accel (lead); Andreessen Horowitz (lead); Redpoint; Menlo Ventures; Kleiner Perkins; GV; 8VC; Ballistic Ventures; Bain Capital Ventures; IQT | $256M | $2.5B | Andreessen 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 2026 | Undisclosed 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 2025 | Seed | Ballistic 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
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| 2 | Lead | Dec 2025 | ||
| 1 | Participant | Oct 2026 | ||
| 1 | Participant | Oct 2026 | ||
| 1 | Participant | Oct 2026 | ||
| 1 | Participant | Oct 2026 | ||
| 1 | Participant | Oct 2026 | ||
| 1 | Lead | Oct 2026 | ||
| 1 | Participant | Dec 2025 | ||
| 1 | Participant | Oct 2026 | ||
This data is available for Pro users. Sign up to see all 11 Armadin Security investors. Start Free Trial | ||||
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Start Free TrialArmadin Security Competitors
Armadin Security competitors include listed companies like Tenable and Infleqtion, and private ones like unico IDtech, Dream Security, Forter and Horizon3.ai.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Private | $100M | - | $2.6B | 26.0x | ||
| Private | $100M | - | $3B | - | ||
| Private | $200M | - | $3B | 15.0x | ||
| Publicly listed | $999M | $31M | $4.4B | 4.4x | ||
| Publicly listed | $29M | ($52M) | $2B | 35.6x | ||
| Private | $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 FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $201M | ($3M) | 11.7x | 12.0x | (779.9x) | (895.4x) | |||
| $351M | ($60M) | 6.9x | 6.2x | (40.3x) | 200.9x | |||
| $595M | $65M | 4.5x | 4.2x | 41.0x | 16.0x | |||
| $659M | ($147M) | 4.3x | 4.3x | (19.2x) | (45.6x) | |||
| $859M | $163M | 2.1x | 2.0x | 11.1x | 7.5x | |||
| $56M | ($353M) | 39.1x | - | (6.2x) | - | |||
| $272M | $84M | 9.1x | 7.6x | 29.4x | 24.8x | |||
| $169M | $19M | 10.7x | 7.6x | 97.2x | (24.6x) | |||
This data is available for Pro users. Sign up to see all Armadin Security competitors and their valuation data. Start Free Trial | ||||||||
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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