Proximity Ventures

Proximity Ventures is a New York-based venture capital firm formed in late 2024 and publicly launched in October of that year. It was co-founded by Neil Sirni — formerly of Roc Nation's venture division Arrive, where he led investments into Sweetgreen, Robinhood, Epic Games, and SpaceX — alongside Jason Mack (formerly of Mack Ventures), musician Santi White (Santigold), and actor and director Olivia Wilde. The firm targets early- and growth-stage companies across the United States and Southeast Asia, with teams operating across Europe, the US, and Asia, and takes a hands-on, founder-first approach built around long-term relationships with operators. Proximity's capital strategy splits into two distinct vehicles: an early-stage fund writing approximately eight equity checks per year at $500,000 to $2 million, and a growth-stage fund targeting approximately $100 million that writes checks of $10 million to $25 million roughly four times per year. Approximately 75% of capital deploys into US-based companies, with most foreign exposure concentrated in Southeast Asia. Sector coverage is broad, spanning software, real estate services, financial software, consumer, and wellness. Across the predecessors' and the current platform's combined history, the partners have invested in more than 200 companies. Disclosed Proximity Ventures portfolio investments include Pendulum Therapeutics (consumer health and probiotics), Delphi, Spleet, and Kredi. The firm's co-founder composition — combining an institutional venture operator, a entertainment-industry entrepreneur, a musician, and a filmmaker — is designed to give Proximity access to founder networks, cultural moments, and consumer behavior insights that pure financial investors lack. For founders building at the intersection of technology, culture, and consumer behavior, this cross-disciplinary team is a distinctive draw beyond the capital itself.