Alpine Investors built an $18.5 billion private-equity firm around an unusual wager: in a business obsessed with deals, the scarce asset is the person who can lead what comes next.
In Rye, New York, a former Blackstone dealmaker built a private equity firm around a contrarian bet: the least glamorous companies in America - the ones that make labels, insulation, and water pumps - are where the returns hide.
Sumeru Equity Partners writes growth checks for software companies that already work - then tackles the messier problem of making them scale. Its real product is a combination of capital, operator time and a remarkably specific checklist for growth.
Stone-Goff Partners backs profitable B2B service firms, then helps them package hard-won know-how into technology, subscriptions and repeatable systems. Its $175 million fourth fund puts a disciplined lower-middle-market thesis behind that transformation.
The Newcastle Network backs consumer brands with $25 million to $75 million checks, then asks for the data beneath the dashboard. Its wager is that private equity works better when capital, code and working operators share the same room.
The Menlo Park investor has spent 25 years turning specialized software into a repeatable private-equity system - one that can buy, lend, consolidate, and still let founders steer.

Karl Meyer is General Partner and Managing Director, Head of Global Portfolio Operations at Digital Alpha, an alternative asset manager focused on digital infrastructure - the backbone of the digital economy spanning next-generation networks, cloud, and IoT/Smart Cities. Bringing two decades of enterprise technology experience from Cisco, Kleiner Perkins, HPE, and Incorta, Meyer joined Digital Alpha in October 2021 to build a world-class operations function and drive measurable value creation across the firm's portfolio companies. He currently serves on the boards of Energybox and PacketFabric, where his enterprise software and go-to-market expertise helps portfolio companies scale into Global 2,000 accounts.
Zoe Wang is the Operations Partner on the New Media team at Andreessen Horowitz (a16z), the storied Silicon Valley venture firm that manages over $39 billion in assets. She came to a16z through the firm's acquihire of Turpentine, the fast-growing podcast network that became the backbone of a16z's media ambitions. Before Turpentine, Wang built a career spanning venture capital operations, capital markets, and investor relations at firms including 10X Capital and SAX Capital. Based in New York, she sits at the intersection of media, operations, and venture — the rare ops executive who understands both the spreadsheet and the microphone.