Every IA40 appearance, 2021 to 2025

Charting the AI industry since 2021

The longest-running list of applied AI companies

Explore the IA40 winners and navigate the evolutions in applied AI since 2021.

200

appearances

37

repeat winners

$200B+

raised by winners

Scroll to explore five years of AI innovation and growth

2021

The inaugural 40.

Way before ChatGPT, we knew applied AI would change the world. Even AI builders weren't clear on the companies defining the sector, so we created the IA40 list to provide clarity and focus.

1st

annual list

4

future 4×+ winners

2022

The pre-ChatGPT vintage.

Our second list released days before ChatGPT changed everyone's roadmap. With 27 new names and the most repeat Enablers of any year, the 2022 list was a precursor of what was to come.

27

debut

13

repeat

$16B+

raised this year

2023

AI goes mainstream

ChatGPT became a household name and 29 first-timers emerged, resulting in the biggest turnover in list history. Foundation models made the list for the first time, and Rising Stars were introduced.

28

debut

12

repeat

$24.5B

raised this year

2024

Agents arrive.

Enterprise productivity and agent infrastructure dominate. Nearly half the cohort's lifetime capital arrived in twelve months.

20

debut

20

repeat

$45.3B

raised this year

2025

Disruption accelerates

Just 13 repeats as the pace of innovation hit warp speed. Some companies outgrew the list's stages in a single year. Databricks became the only five-time winner.

27

debut

13

repeat

$119B+

raised this year

The field keeps growing

Meet the winners in person.

The IA40 Summit gathers the AI sector — founders, builders, researchers and investors — in Seattle this September.

IA40 Summit 2026 → Request an invite

142 companies · 200 appearances

  1. 2021

    inaugural year

  2. 2022

    27 debut · 13 repeat

    $16B+ raised this year

  3. 2023

    28 debut · 12 repeat

    $24.5B raised this year

  4. 2024

    20 debut · 20 repeat

    $45.3B raised this year

  5. 2025

    27 debut · 13 repeat

    $119B+ raised this year

Presented by Madrona

The IA40 highlights the top private companies building intelligent applications.

Determined by a research-driven process based on objective data, curation by over 70 of the most important AI investors, validated against PitchBook data.

The IA40 2025 is the 5th annual list presented by Madrona.

See the list

Intelligent applications and the Reasoning Revolution

Agents and AI improve business execution and enhance consumer experiences.

In collaboration with humans, this unlocks a reasoning flywheel with transformative potential for individuals, organizations and society.

  1. Data Intelligence

    Leverage unstructured and structured data to build contextually relevant applications.

  2. Address Consumer Needs

    Streamline workflows using models and agents to create new customer experiences.

  3. Leverage New Enabling Technology

    Enablers are the systems and technologies that enable builders to leverage data and computational power to train and operate intelligent applications at scale.

IA40 Summit 2026, presented by Madrona

September 29 – 30, 2026 · Four Seasons, Seattle