Latest United States Startup Funding Rounds

Startup funding in United States: recent rounds, the companies behind them and their participating investors.

This page showsCountry: United States
Rounds
2,217
Jan 1 – Oct 24, 2026
Disclosed funding
$208.3B
1841 disclosed amounts
Median round
$24M
Of disclosed amounts
2,217 rounds
Funding rounds
CompanyAmountRoundSectorCountryInvestorsAnnounced
Apollo AtomicsClimate tech · United StatesCompany profile

Apollo Atomics develops compact pressurized-water reactors designed for factory manufacturing.

Apollo Atomics develops compact pressurized-water reactors designed for factory manufacturing.

$31MSeedClimate techUnited StatesInvestors
Twin1 AIAI · United StatesCompany profile

Gives professionals AI-powered digital twins that scale their expertise securely

Gives professionals AI-powered digital twins that scale their expertise securely

$20MSeedAIUnited StatesInvestors
RundooEcommerce · United StatesCompany profile

AI-first system of record for independent hardware, paint, and supply stores

AI-first system of record for independent hardware, paint, and supply stores

$30MSeries BEcommerceUnited StatesInvestors
Relativity NetworksHardware · United StatesCompany profile

Builds hollow-core fiber optical networking technology connecting distributed AI data centers

Builds hollow-core fiber optical networking technology connecting distributed AI data centers

$22MSAFE financingUndisclosedHardwareUnited StatesInvestors
KaliVir ImmunotherapeuticsBiotech · United StatesCompany profile

Develops oncolytic immunotherapies for patients with advanced solid tumors

Develops oncolytic immunotherapies for patients with advanced solid tumors

$14MSeries ABiotechUnited StatesInvestors
Ours PrivacyHealthtech · United StatesCompany profile

Provides a HIPAA-compliant customer data platform for healthcare marketers

Provides a HIPAA-compliant customer data platform for healthcare marketers

$15MSeries AHealthtechUnited StatesInvestors
TravelXAI · United StatesCompany profile

AI-native platform helping airlines dynamically optimize inventory after booking

AI-native platform helping airlines dynamically optimize inventory after booking

UndisclosedSeries AAIUnited StatesInvestors
ALSOMobility · United StatesCompany profile

Builds vertically integrated small electric vehicles including e-bikes and autonomous delivery quads

Builds vertically integrated small electric vehicles including e-bikes and autonomous delivery quads

$150MSeries DSeries C+MobilityUnited StatesInvestors
CastelionDefense tech · United StatesCompany profile

Builds low-cost, mass-producible hypersonic strike missiles for defense

Builds low-cost, mass-producible hypersonic strike missiles for defense

$1BSeries CSeries C+Defense techUnited StatesInvestors
Sonic Fire TechIndustrial tech · United StatesCompany profile

Develops infrasound-based fire suppression technology inspired by aerospace research

Develops infrasound-based fire suppression technology inspired by aerospace research

$15MSeedIndustrial techUnited StatesInvestors

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Ranked by rounds participated in · From Jan 1, 2026

  1. 1
    Y Combinator (YC)

    Tractian, Blacksmith, Databuddy Analytics

    131rounds
    3led
  2. 2
    Andreessen Horowitz (a16z)

    ASI, Eka Robotics, Town

    98rounds
    19led
  3. 3
    General Catalyst

    Tractian, Different, Baba

    69rounds
    7led
  4. 4
    Alumni Ventures

    Maxinsights, Daytona, Chariot Claims

    60rounds
    0led
  5. 5
    Khosla Ventures

    Arda Industries, Tolan

    58rounds
    6led

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