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Lean Team Wins: 3 AI Hit $10M and $30M ARR with <20 people in a short time

Guardio ARR Hit $100M.

John Tian's avatar
John Tian
Nov 21, 2025
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Guardio ARR Hit $100M

The products I wrote about yesterday are perfect examples of AI agents shaking up the cybersecurity world, largely on the enterprise side.

Suno ARR Hit $200M in 2 years, Investors Bet $75M on Autonomous AI Attackers

Suno ARR Hit $200M in 2 years, Investors Bet $75M on Autonomous AI Attackers

John Tian
·
November 20, 2025
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But the trend doesn’t stop there: we’re now seeing similar consumer-facing products hitting the $100M ARR mark.

Guardio, a consumer cybersecurity startup focused on detecting malicious code—especially that generated by AI tools—has reached $100 million in ARR.

The company has 500,000 paying users, and its security engine blocks a wide range of threats from phishing sites to AI-crafted scam infrastructure.

Guardio’s core value lies in its adaptive browser extension and mobile protection apps, which scan for emerging cyber threats in real-time.

It utilizes AI-driven threat detection to identify malicious artifacts in websites and code generated by AI tools—a growing concern as “vibe-coding” platforms become increasingly popular.

It also offers a “Critical Security Alerts” feature that intervenes during financial scams, warning users of suspicious behavior and helping prevent fraud.

Guardio just secured $80 million in new funding in its latest round, led by ION Crossover Partners, with participation from Vintage Investment Partners, Union Tech Ventures, and Emerge.

The raise comes as the company claims triple its valuation since its previous $47M round in 2021. Guardio reports consistent growth, noting over 100% ARR growth for three consecutive years.

3 AI Hit $10M and $30M ARR with <20 people in a short time

I’ve also been closely following 3 AI startups whose revenue growth has been nothing short of explosive. All of them doubled ARR within just a few months — while keeping their teams extremely small.

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