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Lightning AI

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Updated Mar 24, 2026

Everything you need to know about Lightning AI — from their $112M in funding to who's backing them.

🇺🇸United StatesPrivateAI Infrastructure

Out of 100

🇺🇸

HQ

United States

🗓

Founded

2019

💰

Raised

$112M

🏷️

Stage

Private

👥

Team

150

Lightning AI is an AI infrastructure company founded in 2019 that provides tools and frameworks for building, training, and deploying machine learning models at scale. The company develops PyTorch Lightning, an open-source deep learning framework that abstracts away engineering complexity while maintaining flexibility for researchers and practitioners. Lightning AI's platform simplifies the

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Key Facts

  • Lightning AI is valued at $2.5B as of March 2026.
  • Lightning AI has raised a total of $112M in disclosed funding across 3 funding rounds.
  • Lightning AI was founded in 2019 by William Falcon and is headquartered in United States.
  • Lightning AI employs approximately 150 people.
  • Lightning AI operates in the AI Infrastructure category and is currently at the Private stage.
  • Lightning AI has an Awaira Score of 74/100, ranking it among the tracked AI companies on Awaira.
  • Lightning AI's most recent funding round was a Series C of $50M closed in November 2024, led by Coatue Management.

Source: Awaira · Updated Mar 24, 2026

$2.5B

Post-money

$112M

All rounds

74/100

2019

150 employees

Strengths

Unicorn status with $2.5B valuation

Strong Awaira Score of 74/100

Growing team of 150 employees

Analysis based on publicly available data. Not investment advice.

3

Total Rounds

$38.33M

Avg Round Size

3.9yr

Funding Span

Lightning AI raised 3 rounds over 3.9 years, averaging $38.33M per round — a pace of roughly one round every 16 months.

⚠️ ESTIMATE
💵Est. Annual Revenue
$50M–$500M estimated ARR

Awaira estimate based on public data. Not financial advice.

How does Lightning AI stack up against competitors?

MetricLightning AICoreWeaveGraphcoreNebius
Awaira Score74/10095/10085/10084/100
Total Raised$112M$2.38B$767M$2B
Valuation$2.5B$49B$600M$25B
StagePrivatePublicAcquiredPrivate
Founded2019201720162023
Employees1501800500-10001,000
Country🇺🇸🇺🇸🇬🇧🇳🇱
W

William Falcon

Founder & CEO

View founder profile →
StagePrivate
Employees150
Country🇺🇸 United States
Connect
Quiet
3 rounds
Series CLatest

Led by Coatue Management

$50M

Nov 2024

Series B

Led by a16z

$45M

Jan 2022

Series A

Led by Bessemer Venture Partners

$20M

Jan 2021

Frequently Asked Questions

What is Lightning AI's valuation?
Based on the most recent funding round, the valuation sits at $2.5B.
Who invested in Lightning AI?
Known backers include Coatue Management, Gradient Ventures, a16z, Founders Fund, Bessemer Venture Partners, Google Ventures. These investors have supported the company through various funding rounds.
When did Lightning AI last raise funding?
A Series C of $50M represents the most recent capital raise in November 2024. The round was led by Coatue Management.
How many employees does Lightning AI have?
Around 150 people work there, with headquarters in United States.
What does Lightning AI do?
Lightning AI is an AI infrastructure company founded in 2019 that provides tools and frameworks for building, training, and deploying machine learning models at scale. The company develops PyTorch Lightning, an open-source deep learning framework that abstracts away engineering complexity while maintaining flexibility for researchers and practitioners.
Who founded Lightning AI?
William Falcon established the company in 2019. It's based in United States. William Falcon serves as Founder & CEO.
Is Lightning AI profitable?
Profitability details aren't publicly disclosed. The company has raised $112M in total funding and is currently at the Private stage.
Where is Lightning AI headquartered?
Headquarters are in United States 🇺🇸. The company operates in the AI Infrastructure sector and was established in 2019.
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