How Much Did Stairwell Raise? Funding & Key Investors

Date
May 23, 2025

Total amount raised

Latest funding date

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Stairwell has successfully raised significant funding to advance its AI-driven file analysis and threat intelligence platform. The platform offers comprehensive threat analysis, enabling users to upload files and receive detailed insights on their safety and functionality.

Keep reading to explore the intricacies of Stairwell's fundraising journey and the investors backing this innovative platform.

What Is Stairwell?

Stairwell operates in the cybersecurity industry, specializing in advanced file analysis and threat intelligence. Their AI-driven platform offers deep insights into the safety, functionality, and significance of files, going beyond basic verdicts.

Stairwell's platform supports various file types, focusing on executables and scripts, and aims to enhance cybersecurity by providing clear and definitive answers. The company also offers a range of resources and customer support to help organizations leverage their platform effectively.

How Much Funding Has Stairwell Raised?

  1. Seed Round
    • Amount Raised: $4.5 million
    • Date: March 2020
    • Lead Investors: Accel, Sequoia Capital
  2. Series A
    • Amount Raised: $20 million
    • Date: October 2021
    • Lead Investors: Greylock Partners, Accel
  3. Series B
    • Amount Raised: $45 million
    • Date: June 2023
    • Lead Investors: Index Ventures, Sequoia Capital

Stairwell has raised a total of $69.5 million across all funding rounds.

Key Investors

  • Accel
    • Details: Accel is a global venture capital firm that partners with exceptional founders to build world-class businesses. They have a strong track record of investing in early-stage and growth-stage companies.
    • Investment Focus Areas: Technology, internet, software
    • Notable Investments: Facebook, Dropbox, Slack
  • Sequoia Capital
    • Details: Sequoia Capital is a venture capital firm that has been investing in companies that now control $1.4 trillion of combined stock market value. They focus on helping daring founders build legendary companies.
    • Investment Focus Areas: Technology, healthcare, consumer services
    • Notable Investments: Apple, Google, Airbnb
  • Greylock Partners
    • Details: Greylock Partners is a leading venture capital firm that invests in early-stage companies. They have a history of backing transformative companies and helping them scale.
    • Investment Focus Areas: Enterprise software, consumer internet, healthcare
    • Notable Investments: LinkedIn, Airbnb, Facebook
  • Index Ventures
    • Details: Index Ventures is an international venture capital firm that backs the best and most ambitious entrepreneurs. They have a strong presence in both Europe and the United States.
    • Investment Focus Areas: Technology, life sciences, financial services
    • Notable Investments: Dropbox, Etsy, Skype

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