Which is bigger, Blackstone or KKR?

KKR vs. Blackstone: Who’s Bigger in 2025?

When it comes to private equity, two names often dominate the conversation: KKR and Blackstone. For years, they've vied for the top spot in size, influence, and fundraising power. But according to the latest PEI 300 ranking for 2025, released by Private Equity International, the balance has shifted—again.

This year, KKR has reclaimed the number one position among private equity firms globally, edging past Blackstone, which has slipped to third place. The ranking measures how much capital firms have raised over the past five years specifically for private equity investments—the core of traditional buyout activity.

What’s notable is that Blackstone didn’t just lose ground to KKR—EQT AB, the Sweden-based firm focused on sustainable infrastructure and growth equity, also surged ahead to claim second place. This reflects a broader trend: traditional buyout giants are now competing with regionally rooted and ESG-driven firms that are rapidly scaling.

KKR's resurgence at the top can be attributed to a disciplined fundraising strategy, strong performance across its buyout and credit strategies, and an ability to adapt quickly to shifting market dynamics. Meanwhile, Blackstone remains a powerhouse—but its focus has increasingly expanded beyond classic private equity into real estate, credit, and hedge fund solutions, which don't count toward the PEI 300's private-equity-specific tally.

So, is KKR bigger than Blackstone? In the context of pure private equity fundraising over the last five years—yes, for now. But the title of “bigger” depends on how you measure it. By total assets under management, Blackstone still holds an edge. Yet in the arena that PEI tracks, KKR has retaken the crown.

The back-and-forth between these titans shows just how competitive the private equity landscape has become—and how quickly leadership can change in the world of high-stakes investing.