Proofpoint, Inc. is a global leader in human- and agent-centric cybersecurity, securing how people, data and AI agents connect across email, cloud and collaboration tools. Proofpoint is a trusted partner to over 80 of the Fortune 100, over 10,000 large enterprises, and millions of smaller organizations in stopping threats, preventing data loss, and building resilience across people and AI workflows. Proofpoint’s collaboration and data security platform helps organizations of all sizes protect and empower their people while embracing AI securely and confidently.
Proofpoint
- CEO
Sumit Dhawan
- Platform
- Flagship
- HQ
Sunnyvale, CA
- Sector
- Cybersecurity
- Year Invested
2021
- Year Founded
2002
Securing the enterprise in the age of AI
2002
Proofpoint starts building a market-defining franchise
Founded in Sunnyvale, CA, Proofpoint quickly helped create the cloud-based email security category.
2020
Proofpoint crosses $1 billion revenue threshold, a SaaS cybersecurity first
Impressed by their revenue milestone (and a customer list that included over half the Fortune 1000), we started conversations with management about doing a deal.
2021
One of the largest take-privates in software history
After a year-long pursuit, including months of virtual due diligence during the pandemic, we took Proofpoint private in August.

2023
New CEO brings product vision and operational excellence
Sumit Dhawan came on board as CEO, bringing product expertise and extensive go-to-market knowledge to help accelerate growth.

2024
Proofpoint’s ARR reaches $2 billion
Proofpoint crossed the $2 billion ARR threshold about halfway through 2024, just a few years after it first surpassed $1 billion.
2024
AI innovation delivers world-class threat detection
Proofpoint deployed AI-powered intent detection systems.
2024
Strategic acquisitions help Proofpoint expand into data security
Proofpoint acquires Tessian and Normalize to build a $250 million data security business.

2025
Hornetsecurity acquisition helps Proofpoint expand
Proofpoint acquired Hornetsecurity to broaden its go-to-market reach and deepen its presence in Europe, adding a mature platform with strong growth momentum.