The World's #1AI Startup Directory

Find stealth-mode startups before anyone else, research investors, and track the entire AI ecosystem — enriched daily by AI, free to search.

Mastra
CopilotKit
Cognition AI
poolside
LangSmith
nao Labs
Tropir
Sakana AI
Linkedin
Pylon
Outlit
Knostic
Prompt Security
Onyx Security
Noma Security
Apex Security
Lakera AI AG
CalypsoAI
Protect AI
Patronus AI
Lasso Security
Prior Labs
Lindy
Composio
CrewAI
LM Studio
Dig
Decart AI
Context.ai
OpenRouter

Some of our trusted clients

Lightspeed Venture PartnersDealflow

Dealflow source for stealth-mode investments

Gartner
Google
NVIDIA
Insight Partners

Index VenturesDealflow

Dealflow source for stealth-mode investments

Sequoia CapitalDealflow

Dealflow source for stealth-mode investments

Battery Ventures
Intel
U.S. Department of the NavyU.S. Navy
U.S. Department of the ArmyU.S. Army
OpenAI
xAI
SpaceX
Samsung
General Atlantic
Left Lane Capital
Lenovo
AWS
AccelDealflow

Dealflow source for stealth-mode investments

RedpointDealflow

Dealflow source for stealth-mode investments

Team8
CRVDealflow

Dealflow source for stealth-mode investments

Vega SecurityTrail Security
CyberstartsDealflow

Dealflow source for stealth-mode investments

Vega SecurityTrail Security
GCPDealflow

Dealflow source for stealth-mode investments

YL VenturesYL VenturesDealflow

Dealflow source for stealth-mode investments

MayfieldDealflow

Dealflow source for stealth-mode investments

Always fresh

Agentic intelligence layer

Our agents read funding news, hiring signals, product launches, and filings around the clock, so every profile stays current without anyone touching a spreadsheet. Then the Lighthouse Engine traces a faint signal to a fully formed company profile: Palantir-grade identity resolution and graph-network technology that follows a bare domain to the live site, the company behind it, and the real people running it, every link independently verified. It's how we surface stealth startups before they ever announce.

Reverse lookup
OSINT signals
Deep-web search
Identity resolution
Identity graph
scanning registries
Watchlist alerts Live
  • Raised a new round
    Persona AI
    Series B · $40M
  • Added 12 engineers
    Geordie AI
    Headcount +9%
  • Released from stealth
    Observable Space
    Now public
  • Shipped a new product
    Cognition AI
    Launch detected
  • Mentioned in the news
    OpenRouter
    3 articles today
  • Opened a new office
    Lucis
    Now hiring
  • Acquired a competitor
    Brandi AI
    M&A detected
  • Changed pricing
    Hailuo 3.0
    New tier added
  • Raised a new round
    Persona AI
    Series B · $40M
  • Added 12 engineers
    Geordie AI
    Headcount +9%
  • Released from stealth
    Observable Space
    Now public
  • Shipped a new product
    Cognition AI
    Launch detected
  • Mentioned in the news
    OpenRouter
    3 articles today
  • Opened a new office
    Lucis
    Now hiring
  • Acquired a competitor
    Brandi AI
    M&A detected
  • Changed pricing
    Hailuo 3.0
    New tier added

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The same filters as our search — pick a value and it opens the live directory with that filter applied.

Stealth Mode

Explore by sector

Every corner of the AI ecosystem

From agentic AI and neoclouds to defense, robotics, fintech, and biotech — browse curated startups across hundreds of sectors, each enriched and ranked.

Defense Tech

Top defense, aerospace & space startups

Defense TechAerospaceDefenseDrones
Castelion
El Segundo, United States

Defense startup mass-producing affordable hypersonic missile systems for the U.S. military, founded by ex-SpaceX engineers.

$450M100 ppl
Senra Systems
Redondo Beach, United States

Wire harness manufacturing startup combining proprietary design software with assembly-as-a-service for aerospace and defense.

$25M30 ppl
Allen Control Systems
Austin, United States

Defense robotics company building autonomous precision weapon systems to counter drone threats.

$42M30 ppl
Swarm Aero
Oxnard, United States

Developing large unmanned aerial vehicles and sophisticated swarm command and control software for defense.

$35M52 ppl
Orbital Materials
Houston, United States

AI-accelerated invention and manufacture of physical products for extreme environments.

$13M58 ppl
Nexxa.ai
Sunnyvale, California

Specialized AI agents for heavy industries, modernizing legacy systems and automating complex engineering workflows.

$13M9 ppl
Castelion
El Segundo, United States

Defense startup mass-producing affordable hypersonic missile systems for the U.S. military, founded by ex-SpaceX engineers.

$450M100 ppl
Senra Systems
Redondo Beach, United States

Wire harness manufacturing startup combining proprietary design software with assembly-as-a-service for aerospace and defense.

$25M30 ppl
Allen Control Systems
Austin, United States

Defense robotics company building autonomous precision weapon systems to counter drone threats.

$42M30 ppl
Swarm Aero
Oxnard, United States

Developing large unmanned aerial vehicles and sophisticated swarm command and control software for defense.

$35M52 ppl
Orbital Materials
Houston, United States

AI-accelerated invention and manufacture of physical products for extreme environments.

$13M58 ppl
Nexxa.ai
Sunnyvale, California

Specialized AI agents for heavy industries, modernizing legacy systems and automating complex engineering workflows.

$13M9 ppl
Dream
Tel Aviv, Israel

AI-powered cybersecurity platform for national defense and critical infrastructure.

$200M317 ppl
SkyfireAI
Austin, Texas, USA

AI-native platform for autonomous, coordinated multiship drone operations.

$20M11 ppl
Zephyr Fusion
San Diego, CA, United States

Powering tomorrow's industrial revolution in space

$15M5 ppl
Vannevar Labs
San Francisco, United States

Develops hardware and software for national security situational awareness and non-kinetic effects.

$80M185 ppl
Twin Prime
Palo Alto, United States

Frontier AI lab for defense and security, developing multimodal AI systems to fuse sensor data and accelerate real-time decision-making.

$10M3 ppl
HavocAI .
San Francisco, United States

Havoc is the leader in all-domain collaborative autonomy for military and commercial systems.

$10M142 ppl
Dream
Tel Aviv, Israel

AI-powered cybersecurity platform for national defense and critical infrastructure.

$200M317 ppl
SkyfireAI
Austin, Texas, USA

AI-native platform for autonomous, coordinated multiship drone operations.

$20M11 ppl
Zephyr Fusion
San Diego, CA, United States

Powering tomorrow's industrial revolution in space

$15M5 ppl
Vannevar Labs
San Francisco, United States

Develops hardware and software for national security situational awareness and non-kinetic effects.

$80M185 ppl
Twin Prime
Palo Alto, United States

Frontier AI lab for defense and security, developing multimodal AI systems to fuse sensor data and accelerate real-time decision-making.

$10M3 ppl
HavocAI .
San Francisco, United States

Havoc is the leader in all-domain collaborative autonomy for military and commercial systems.

$10M142 ppl
Vast
Long Beach, United States

Developing next-generation commercial space stations to enable long-term human presence and microgravity research.

$500M1009 ppl
Multitude Insights
San Francisco, United States

A public safety technology company modernizing intelligence sharing for law enforcement using an AI platform.

$13M34 ppl
Integrate
Seattle, United States

A secure, AI-native project management platform for classified defense and government multi-entity collaboration.

$17M41 ppl
Antares Industries
Los Angeles, United States

Advanced nuclear energy startup designing adaptable and scalable microreactors for defense and industrial use.

$96M105 ppl
Sugar-Free Capital
New York, United States

Venture capital firm investing in early-stage technical founders, particularly from MIT.

$64M6 ppl
Zeromark
New York, United States

Defense startup building AI-enabled auto-aiming technology to turn standard rifles into counter-drone weapons.

$7.0M15 ppl
Vast
Long Beach, United States

Developing next-generation commercial space stations to enable long-term human presence and microgravity research.

$500M1009 ppl
Multitude Insights
San Francisco, United States

A public safety technology company modernizing intelligence sharing for law enforcement using an AI platform.

$13M34 ppl
Integrate
Seattle, United States

A secure, AI-native project management platform for classified defense and government multi-entity collaboration.

$17M41 ppl
Antares Industries
Los Angeles, United States

Advanced nuclear energy startup designing adaptable and scalable microreactors for defense and industrial use.

$96M105 ppl
Sugar-Free Capital
New York, United States

Venture capital firm investing in early-stage technical founders, particularly from MIT.

$64M6 ppl
Zeromark
New York, United States

Defense startup building AI-enabled auto-aiming technology to turn standard rifles into counter-drone weapons.

$7.0M15 ppl
Apex Space
Los Angeles, United States

Satellite bus manufacturer enabling rapid, productized spacecraft production for space missions.

$518M150 ppl
Observable Space
Adrian, MI, United States

Enabling scalable, low-cost space-to-Earth laser communications.

$101M43 ppl
CX2
El Segundo, United States

Electronic warfare startup building AI-enabled hardware and software for electromagnetic spectrum defense.

$31M30 ppl
Swan
San Francisco, United States

Modular autonomy platform for defense and industrial operations, built by former Uber/Aurora self-driving leaders.

$108M50 ppl
Overwatch AI
Tel Aviv, Israel

An aviation operations platform for pilots and airline crews.

$12M20 ppl
Iron Brain
Tel Aviv, Israel

AI solutions for defense applications using a self-learning approach that mimics human perception.

$15M16 ppl
Apex Space
Los Angeles, United States

Satellite bus manufacturer enabling rapid, productized spacecraft production for space missions.

$518M150 ppl
Observable Space
Adrian, MI, United States

Enabling scalable, low-cost space-to-Earth laser communications.

$101M43 ppl
CX2
El Segundo, United States

Electronic warfare startup building AI-enabled hardware and software for electromagnetic spectrum defense.

$31M30 ppl
Swan
San Francisco, United States

Modular autonomy platform for defense and industrial operations, built by former Uber/Aurora self-driving leaders.

$108M50 ppl
Overwatch AI
Tel Aviv, Israel

An aviation operations platform for pilots and airline crews.

$12M20 ppl
Iron Brain
Tel Aviv, Israel

AI solutions for defense applications using a self-learning approach that mimics human perception.

$15M16 ppl

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