ReliaQuest Ramps Up AI Cybersecurity with $500M
TAMPA, Fla. — On March 31, 2025, ReliaQuest, the leader in AI-powered cybersecurity, raised over $500 million to scale its platform.
The Tampa-based company raised this cash in investment from EQT, KKR and FTV Capital. It intends to use the funding to grow globally and enhance its GreyMatter platform that helps companies combat cyber threats quickly.
A Big Leap for Cybersecurity
Founded in 2007, ReliaQuest is led by Brian Murphy. He founded the company to simplify security for large companies. Today, it’s GreyMatter platform integrates with more than 200 cybersecurity tools. This allows teams to detect, prevent and remediate threats in minutes. The fresh funding values ReliaQuest, a beacon of success in the AI cybersecurity landscape, at a staggering $3.4 billion. And its annual revenue quadrupled since 2020, reaching more than $300 million.
The company’s expansion comes at an important moment. Cyberattacks are speeding up. According to ReliaQuest’s 2025 Annual Threat Report, attackers can navigate in between networks in just 27 mins. Firms require rapid, intelligent tools to manage. GreyMatter reduces response times using AI. With automation, customers experience threats stopped in as fast as 3 minutes vs over 6 hours without it.
Why the Money Matters
The $500 million increase will enable ReliaQuest to better serve businesses all over the world. It is already a trusted name with clients including Southwest Airlines and the Boston Celtics. No financial terms of the deal were disclosed, but the cash will also fund fresh AI wizardry for GreyMatter. “This latest investment is a key milestone on our growth path,” Brian Murphy, CEO and founder, said in a statement. “It will enable us to provide better security for more leaders around the world.”
Investors see big potential. “The number of cyberattacks continues to escalate,” KKR’s Stephen Shanley, who backed ReliaQuest in 2020, said in a statement. More tools, not more people: teams are getting crushed with tools. ReliaQuest fixes that.” What makes the company stand out is its focus on AI and automation. It combines tech with human know-how to confront 21st-century threats.
The Bigger Picture
Cybersecurity has never been hotter. Companies like ReliaQuest are scrambling to keep a step ahead of hackers. The funding demonstrates a trend: Investors are investing cash into AI-related security. Millions were also raised this year by other startups, including Dream and SafeHouse Tech. ReliaQuest’s success illustrates how much businesses need these tools. Its platform not only stops attacks — it hones and speeds up security teams.
The company has big plans. It seeks to expand in Europe and Asia, where cyber risks are rising. It is also partnering with major brands including the PGA TOUR, where it is an official sponsor. This demonstrates ReliaQuest is more than technology — they’re building a trusted brand. And with more than 30 percent growth every year and profits flowing in, it’s on a roll.
What’s Next for ReliaQuest
This funding has the potential to turn the cybersecurity game upside down. ReliaQuest takes an approach to lead with AI that outsmarts attackers. International expansion means that more companies can leverage used GreyMatter to remain secure. But it’s not the only one — competitors are also on the same mission. So the race is on to see who can outsmart the hackers, most effectively.
This offers encouraging news for businesses. The more tools like GreyMatter the better the protection. Other companies may feel pressured to step up, as well, given the growth of ReliaQuest. And as cyber threats become more insidious, businesses will rely on A.I. more. ReliaQuest’s next steps may prove whether it can retain its ledge and help to make the digital world safer.