Cybersecurity Startup Cloudsek Raises $19 Million Led by Tenacity Ventures and Commvault

Cybersecurity Startup Cloudsek Raises $19 Million: CloudSEK, the Bengaluru-based cybersecurity startup, just raised a whopping $19 million in its latest Series A2 and B1 rounds. The funding was led by Tenacity Ventures and Commvault, with major backing from MassMutual Ventures, Inflexor Ventures, Prana Ventures, and early investors like StartupXSeed and the Meeran Family doubling down.

But this isn’t just another tech funding headline. It’s a serious sign that AI-powered threat intelligence is the future—and CloudSEK is leading the charge.

Cybersecurity Startup Cloudsek Raises $19 Million

CloudSEK’s $19 million boost isn’t just another funding story—it’s a bold signal that predictive cybersecurity is where the future lies. With cutting-edge AI, strong leadership, and global ambition, they’re not just building another SaaS tool. They’re redefining digital defense.

If you care about cybersecurity (and we all should), CloudSEK is the startup to watch in 2025.

From Hacker to Hero: Meet the Founder, Rahul Sasi

Rahul Sasi, a former ethical hacker turned entrepreneur, founded CloudSEK in 2015 with a clear goal—to stop cyberattacks before they even begin. He believed reactive cybersecurity wasn’t cutting it anymore. Instead, companies needed a proactive, predictive model that identifies threats before they go viral.

Rahul’s story is straight outta Silicon Valley playbook: garage coding, late-night pizza-fueled testing, and an obsession with making the web safer. His hacker roots give him a unique lens that most traditional infosec founders lack.

What Does CloudSEK Actually Do?

Let’s break it down in plain English. CloudSEK’s platform, XVigil, acts like your own private cyber spy. It monitors:

• Leaked credentials on the dark web
• Compromised third-party vendors
• Exposed APIs and endpoints
• Rogue mobile apps impersonating your brand

All in real-time. Think of it as a cybersecurity watchdog that never sleeps, powered by AI and machine learning.

The $19 Million Game Plan

This isn’t just about stacking cash—it’s about execution. Here’s how CloudSEK plans to spend that dough:

1. AI That Outsmarts Hackers

The company is investing in deep learning models that can detect new attack vectors and vulnerabilities before they go mainstream.

2. Expansion Into U.S. and Asia-Pacific

Over 60% of CloudSEK’s new revenue now comes from outside India, with the U.S. leading the pack. They’re hiring sales and support teams globally to service Fortune 500 clients.

3. Product Innovation

CloudSEK is adding compliance tools (like GDPR alerts), zero-trust support, and supply chain monitoring to its existing suite.

Cybersecurity Landscape: Why This Matters Now

Let’s get real—cybercrime is growing faster than inflation. The global cost is expected to hit $10.5 trillion per year by 2025, per Cybersecurity Ventures.

Old-school tools like anti-virus and basic firewalls don’t cut it anymore. Companies now need real-time, predictive solutions that integrate directly with Slack, Teams, Jira, and incident response systems. That’s exactly what CloudSEK delivers.

Comparison: CloudSEK vs. the Big Dogs

While competitors like CrowdStrike and SentinelOne excel at endpoint defense, CloudSEK goes a step ahead—tackling the external landscape where breaches usually begin.

Real-World Wins: CloudSEK in Action

One of their major retail clients avoided a multi-million-dollar phishing scam thanks to an early alert about a cloned mobile app found on a shady app store. In another case, XVigil helped a Southeast Asian bank uncover leaked admin credentials on the dark web—before hackers could exploit them.

What the Investors Are Saying

“CloudSEK’s platform delivers measurable risk reduction and compliance ROI in ways traditional players don’t. Their ability to predict external attack vectors is game-changing.”
— Tom Newton, Partner at Tenacity Ventures

“We’ve seen three years’ worth of ARR growth in under two. That’s rare. CloudSEK is not just solving problems—they’re redefining how we think about external risk.”
— Investor at Inflexor Ventures

CloudSEK Milestones: Timeline from 2015 to 2025

• 2015 – Founded by Rahul Sasi
• 2017 – Launched MVP for Indian banks
• 2019 – Landed first Fortune 500 client
• 2020 – Raised Series A ($7 million)
• 2022 – Expanded to UAE & SEA
• 2023 – Tripled ARR, launched supply chain module
• 2025 – Raised $19M; global expansion underway

Risks & Scaling Challenges

It ain’t all sunshine. Like any fast-scaling startup, CloudSEK will need to:

• Navigate data privacy regulations across countries
• Handle complex enterprise integrations
• Avoid talent burnout in the face of hiring surges
• Compete with heavily funded U.S. players

But with a seasoned founder and strategic investors on board, they look ready to ride the storm.

Career Opportunities at CloudSEK

Love cybersecurity? CloudSEK is hiring across roles—from AI engineers and threat analysts to content writers and customer success leads. They offer remote flexibility, strong pay, and the chance to work with mission-driven teams.

Check their careers page if you’re on the lookout!

FAQs About Cybersecurity Startup Cloudsek Raises $19 Million

Is CloudSEK available to U.S. businesses?

Yes. The U.S. is now one of their fastest-growing markets with on-ground support and enterprise SLAs.

What types of businesses use CloudSEK?

Their clients include banks, e-commerce giants, SaaS providers, and fintech firms.

Can small businesses use it?

While it’s enterprise-grade, CloudSEK is developing SMB-friendly offerings in 2025.

How does CloudSEK detect threats?

Using AI algorithms that crawl thousands of data points across the internet, including dark web forums and malware kits.