Waldo Closes Oversubscribed $225 Million Debut Fund to Back Early-Growth Software Companies

New updates have been reported about Waldo.

Waldo, a New York–based investment firm, has closed its first fund, Waldo I, with $225 million in commitments, positioning the firm as a new specialist investor in early-growth stage software and tech-enabled services businesses. The oversubscribed fund, raised on an accelerated timeline, is backed by a mix of institutional investors including foundations, fund-of-funds, and multi-family offices, alongside founders and operators who have longstanding relationships with Waldo’s leadership. Waldo’s strategy is to target founder-led companies that already demonstrate strong fundamentals and tangible market traction, aiming to scale them into category leaders without overreliance on public capital markets. The firm emphasizes active sourcing of “hard-to-find” opportunities and applies institutional-grade investment processes supported by data and technology, mirroring the modern infrastructure used by the companies it backs.

Waldo was founded by Managing Partners Jon Rosenbaum and Julie Effron, who have collaborated since their undergraduate days at the University of Pennsylvania and together bring more than a decade of growth-equity investing experience from prior roles at Insight Partners and Elephant, including over 30 combined board positions. Effron also adds operational credibility through her founder experience at ALICE, a hotel software company later acquired by Expedia, which informs Waldo’s stated founder-first approach. With its team and platform now in place, Waldo is actively deploying Waldo I to partner with technology entrepreneurs globally. For executives and stakeholders, the fund’s close marks Waldo’s formal emergence as a capital partner capable of leading or participating in substantial growth rounds for proven software and tech-enabled services companies, with the potential to influence competitive dynamics and financing options across this segment of the private markets.