The 2025 AI Unicorn Club: Startups That Hit $1B+ Valuations

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AI Startups With $1B+ Valuations in 2025

Call it the year of the AI unicorn. Despite tighter capital markets, a new crop of AI startups is reaching billion-dollar status — and fast. From enterprise infra to defense and automation, these companies aren’t just riding the hype… they’re building the future.

This is your running list of AI startups that have reached a $1 billion+ valuation in 2025, with details on how much they’ve raised, who’s backing them, and what they’re building.

Company

Location

Valuation

Funding Details

Category

Anysphere

San Francisco, CA

~$9B

$900M co-led by Thrive, a16z, Accel

AI coding assistant

ReliaQuest

Tampa, FL

$3.4B

$500M+ raised

AI security operations

Shield AI

Washington, DC

$5.3B

$240M Series F-1

Defense / autonomy software

Databricks

San Francisco, CA

Multi-$B (est. $45B)

$15B Series J + $5.25B credit line

AI & data infrastructure

Groq

Mountain View, CA

~$1.5B

$1.5B commitment from Saudi Arabia

AI inference hardware

Together AI

San Francisco, CA

$3.3B

$305M Series B

AI acceleration cloud

Cyberhaven

Palo Alto, CA

$1B

$100M Series D

Data security

Redpanda

San Francisco, CA

$1B

$100M Series D

Real-time AI data platform

OpenEvidence

Cambridge, MA

$1B

Series A (undisclosed, led by Sequoia)

Health AI

Hightouch

San Francisco, CA

$1.2B

$80M Series C

Data & AI for marketing

Tines

Boston & Dublin

$1.125B

$125M Series C

AI-powered workflows

What These Companies Have in Common

  • Vertical AI focus: From healthcare to security, the top-valued AI companies aren’t just generalists — they dominate high-stakes verticals.

  • Infrastructure edge: Unicorns like Groq, Databricks, and Together AI are building the backbone of the AI ecosystem — from chips to cloud.

  • Investor confidence: Top firms like Thrive Capital, a16z, Sequoia, and Saudi sovereign wealth funds are placing massive bets.