COMPANY PROFILE

Reken

Developer of a cybersecurity platform aims to create a new category of AI products designed to defend against emerging threats posed by generative Artificial Intelligence

San Francisco, United StatesFounded 2024Defence

Valuation $50–100M Last recorded · 2024

Headcount <100 Current team size

Total funding $10–50M Disclosed equity funding

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About Reken

Reken is a San Francisco AI cybersecurity company founded in January 2024 by Shuman Ghosemajumder (CEO; formerly founded Google Trust & Safety product and later Shape Security / F5 Head of AI) and Rich Griffiths (COO; former Shape Security VP Product) that builds on-device AI to make internet communications safer against scams, fraud and deepfakes. Its Reken Private Core runs proprietary models and telemetry on commodity devices without GPUs or extra token costs, keeping communication data private on-device; products on the Core form a Reken Network trust layer that analyses inbound messages for malicious behaviour. The first app, Northstar (Early Access), is a just-in-time AI assistant that helps employees spot social engineering, deepfakes, business-email compromise and AI-enabled fraud without relying solely on phishing training. After a $10 million oversubscribed seed in 2024 led by Greycroft and FPV Ventures, with Firebolt, Fika, Omega, Homebrew, JAZZ and angels including Google-connected investors, Reken emerged from stealth in July 2026 to launch Private Core and Northstar. Sources: PR Newswire 13 Jul 2026; Homebrew 14 Jul 2026; reken.ai.

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At a glance

Status: Operational
Founded: 2024
Headquarters: San Francisco, United States
Employees: 11
Open positions: None listed
Dealroom signal: 77.6/100
Industry: Security
Sector: Defence, Core AI, Defence Applications, Cybersecurity, Generative AI, MLops, genAI Operation Layer, Dual-Use Tech, AI Applications
Technology: Artificial Intelligence
Business model: SaaS
Client focus: b2b
Links: Website LinkedIn X

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Funding history

1 recorded event

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
SEEDOther financing	Jan 2024	$10M	$40M	Greycroft Partners · JAZZ Venture Partners · Fika Ventures · Firebolt Ventures	↗

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Growth signals

Reken website traffic

Latest recorded traffic for Reken is 4.4K monthly website visits, up 478.9% over the last three months. Reken's team grew 22.2% over the past year.

Latest monthly visits4.4K 3-month web change+478.9% 1-year team growth+22.2%

Monthly website visitsFeb 2024–Jul 2026

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