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.
Amount Raised
$8.3 Million
Round Type
Series A
San FranciscoSoftwareArtificial IntelligenceSecurityCyber SecurityNetwork SecurityInvestors
Description
Arcjet, a security platform, has secured $8.3 million in Series A funding to combat AI-powered cyber threats. This investment will support the development of their developer-first native security platform for modern applications. Investors include Plural, Ott Kaukver, Andreessen Horowitz, Seedcamp, and notable angels. The funding brings Arcjet's total to $12 million.
Quick answer
Arcjet raised $8.3 Million in a Series A round, dated October 8, 2025. Investors: Feross Aboukhadijeh, Jeff Lawson, Andreessen Horowitz, Seedcamp, Plural and Ott Kaukver. Arcjet is based in San Francisco, California, United States.
- How much did Arcjet raise?
- Arcjet raised $8.3 Million in a Series A round on October 8, 2025.
- Who invested in Arcjet?
- Feross Aboukhadijeh, Jeff Lawson, Andreessen Horowitz, Seedcamp, Plural and Ott Kaukver are named as investors in this round.
- What does Arcjet do?
- Arcjet is a security platform designed for developers, providing native security solutions that are integrated directly into application code.
- Where is Arcjet based and how big is it?
- Arcjet is based in San Francisco, California, United States. Fundz records about 18 employees.
- Who are the decision-makers at Arcjet?
- Fundz holds 4 contacts at Arcjet, including the Director of Engineering. Names and contact details are shown to Fundz members.
Source: Fundz verified event record.
Who else raised in Security and Cyber Security around the same time
Companies in the same sectors as Arcjet that raised within 45 days of this round, from Fundz verified event records.
- Bricklayer AI raised $5M (Seed) on October 22, 2025.
- Mondoo raised $18M (Funding Round) on September 30, 2025.
- Bedrock Data raised $25M (Series A) on November 19, 2025.
- Secure.com raised $4.5M (Funding Round) on November 18, 2025.
- Cursor raised $2.3B (Funding Round) on November 13, 2025.
- Armis Security raised $435M on November 8, 2025.
Who to call at Arcjet, and when
A new round usually means Arcjet is about to hire and buy. The teams that reach out first get the meeting.
- An alert the day Arcjet raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Arcjet, from your own LinkedIn network
Works inside ChatGPT and Claude. Ask who to call at Arcjet. With Fundz connected, it knows.
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Funding Insights
What this usually meansArcjet raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.
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