Founder · Instinct

Noah Shinn

Founder & CEO of Instinct, an ai company based in San Francisco.

Founder · CEOSan FranciscoAI
Founded
2026
San Francisco, California, United States
Raised to date
$350M
3 rounds on record
Latest round
Series A
$75M · Aug 2026
Team
1–10
Spear Street Technology, Inc.

About

Noah Shinn is Founder & CEO of Instinct, an ai company based in San Francisco, founded in 2026. Instinct's most recent disclosed round was a Series A of $75M in Aug 2026.

Compiled from StartupFox records · updates as coverage is published

Company

Est. 2026
Instinct
AI · San Francisco · 1–10 people · Active

San Francisco-based AI startup behind Instinct, a personal AI agent with no app interface. Users connect it to their email, calendar, messaging and devices and interact by text message or phone call, and it takes real-world actions such as booking travel, shopping and cancelling subscriptions. Operated by Spear Street Technology, Inc. Founded in 2026 by Noah Shinn, a former research scientist at Sierra.

Funding
Aug 2026Series A$75MKleiner Perkins (Mamoon Hamid)
Aug 2026Series B$250MIndex Ventures, Benchmark
May 2026Seed$25MConviction (Pranav Reddy), Greenoaks (Neil Mehta)
Company profile →3 rounds on record

Journey with Instinct

2 milestones
  1. Apr 2026Founded

    Spear Street Technology, Inc. registered in California by Noah Shinn, a 23-year-old former research scientist at Sierra, to build the Instinct personal AI agent. Read the story →

  2. Aug 2026Milestone

    Valuation rose from ~$50 million to $2.5 billion in about four months across seed, a $500M-valuation Series A and a $2.5B-valuation Series B, all before public launch; the product drew privacy and security concerns over its data-retention terms and agent permissions. Read the story →

Coverage

1 story
Funding · 28 Aug 2026 · 7 min read
Viral AI Assistant Instinct Raises $250 Million at a $2.5 Billion Valuation Months After a $50 Million Mark

Quick answers

Who is Noah Shinn?

Noah Shinn is the Founder & CEO of Instinct, an ai company based in San Francisco, founded in 2026.

Who founded Instinct?

StartupFox's company records list Noah Shinn as Founder & CEO of Instinct.

How much funding has Instinct raised?

Instinct has raised $350M across 3 disclosed rounds on record. The latest was a Series A of $75M in Aug 2026, with Kleiner Perkins (Mamoon Hamid).

Where is Instinct based?

Instinct is headquartered in San Francisco, California, United States.

What has StartupFox reported about Noah Shinn?

StartupFox has published 1 story naming Noah Shinn; the most recent is “Viral AI Assistant Instinct Raises $250 Million at a $2.5 Billion Valuation Months After a $50 Million Mark”.

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Sources & updates

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