Arcjet
San Francisco, California, United States · Artificial Intelligence, Cyber Security, Network Security
Arcjet is a security platform designed for developers, providing native security solutions that are integrated directly into application code. The platform aims to protect against AI-driven cyberattacks and malicious bot traffic, enabling developers to maintain application security without sacrificing deployment speed. Arcjet’s approach allows for real-time analysis of user behavior and business c
Key facts
- Headquarters
- San Francisco, California, United States
- Employees
- 18
- Industries
- Artificial Intelligence, Cyber Security, Network Security
- Status
- Private
- Website
- arcjet.com
- Company page
Recent activity at Arcjet
- : Arcjet launched Agent Runtime Security to help teams secure AI agents and ensure governance and compliance.
- : Arcjet launches Guards to enhance application security within AI agent workflows.
- : Arcjet launches a Python SDK to enhance application-layer security for Python services and APIs.
- : Arcjet has launched a new local AI attack detection model that enhances its suite of developer-first security products.
- : Arcjet has raised $8.3 million in Series A funding to enhance their AI-driven defense against cyberattacks. Led by Plural and Ott Kaukver, this funding aims to accelerate product development.
Arcjet funding history
| Date | Round | Amount |
|---|---|---|
| Oct 2025 | Series A | $8.3M |
Leadership
- Rei Norvell, Director of Engineering
- Titus Wormer, Product Engineer
- Rohan S, Developer Ambassador
- Rishabh Kaul, Angel Investor
- Phil Giammattei, Frontend Engineer
- Caleigh Smith, Operations Manager
- Daniele De Matteis, Founding Lead Designer
- David Mytton, CEO
Verified email and direct lines for Arcjet’s decision-makers are on Fundz. See plans — or book a 15-minute walkthrough.
Arcjet in the news
- Arcjet reaches v1.0, promises stable security for JavaScript apps - The New Stack (Feb 14, 2026)
- Exclusive: Arcjet launches runtime security to track and control AI agents in production - SiliconANGLE (Sep 17, 2026)
- Arc Jet Complex - NASA (.gov) (Aug 07, 2023)
- Utilizing XGBoosts to correct arcjet contamination in magnetic field measurements from GOES missions - Frontiers (Sep 15, 2025)
- Meet Zevy Blokh - Bold Journey Magazine (Sep 17, 2024)
- Correcting the Arcjet Thruster Disturbance in GOES‐16 Magnetometer Data - Califf - 2020 - Space Weather - AGU Publications (Jan 10, 2020)
- NASA Identifies Cause of Artemis I Orion Heat Shield Char Loss - NASA (.gov) (Dec 05, 2024)
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About Arcjet: questions and answers
What does Arcjet do?
Arcjet is a security platform designed for developers, providing native security solutions that are integrated directly into application code. The platform aims to protect against AI-driven cyberattacks and malicious bot traffic, enabling developers to maintain application security without sacrificing deployment speed. Arcjet’s approach allows for real-time analysis of user behavior and business c
Where is Arcjet headquartered?
Arcjet is headquartered in San Francisco, California, United States.
How many employees does Arcjet have?
Arcjet has about 18 employees.
Has Arcjet raised funding?
Yes. Fundz has recorded 1 funding event for Arcjet. The most recent, Series A of $8.3M, was in Oct 2025.
Who leads Arcjet?
David Mytton is a CEO at Arcjet.
What is the latest news on Arcjet?
On Sep 17, 2026, Arcjet launched Agent Runtime Security to help teams secure AI agents and ensure governance and compliance.
Source: Fundz records from SEC filings, press releases and company announcements. How Fundz measures data accuracy