Zayo Group Holdings, Inc.

Zayo Group Holdings, Inc., founded in 2007, is a leading provider of communications infrastructure, headquartered in Boulder, Colorado. Established by Dan Caruso, John Scarano, and Matt Erickson, Zayo specializes in fiber-based network services, offering high-bandwidth connectivity solutions to carriers, enterprises, and hyperscalers. The company operates one of the largest fiber networks in North America and Europe, spanning over 17 million fiber miles. Acquired by EQT and DigitalBridge in March 2020 for $14.3 billion, Zayo has shifted focus to private operations, emphasizing network expansion and acquisitions, such as Crown Castle's fiber business for $4.3 billion in 2025. Zayo serves industries with high data demands, including cloud computing, AI, and telecommunications.

Business/Product Breakdown

Zayo Group provides a comprehensive suite of fiber-based connectivity and infrastructure services, including dark fiber, wavelengths, Ethernet, IP services, and colocation. Its dark fiber offerings provide dedicated, high-capacity fiber for clients to manage their own networks, ideal for hyperscalers and telecom carriers. Wavelength services offer point-to-point connectivity with bandwidths up to 400G, supporting data-intensive applications like cloud computing and AI. Zayo's Ethernet and IP services cater to enterprises needing reliable, scalable networking, while its colocation facilities provide secure data center solutions with low-latency connectivity. The company's network spans 400+ markets, 1,200+ data centers, and 150,000+ buildings, with key routes like Zayo's North American Long Haul Network. Recent acquisitions, such as QOS Networks and Globalways GmbH, and investments in 400G infrastructure enhance its global reach and capacity. Zayo's services are tailored to meet the growing demand for low-latency, high-bandwidth connectivity driven by 5G, cloud services, and AI workloads, positioning it as a critical backbone for digital infrastructure