# Arcjet

> Developer-first application security platform (bot protection, rate limiting).

## Why it is interesting

Native security for Next.js/Node/Bun — Zane Lackey (ex-Signal Sciences) led a16z seed.

## Profile

- **Stage:** series-a
- **Status:** private
- **Industries:** enterprise-saas, cybersecurity
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Seed (2024): $3.6M led by a16z (company blog)
- Series A (2025): $8.3M led by Plural with a16z participation (company blog)
- Co-investors: no additional institutional investors in VCT directory disclosed in public sources reviewed 2026-07-24

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz

## Related articles

- https://venturecapitaltracker.com/2026-a16z-hot-portfolio-companies

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Source: https://venturecapitaltracker.com/startup/arcjet