Zayo Group Holdings, Inc.

Zayo Group Holdings, Inc., commonly known as Zayo Group, is a privately held company headquartered in Denver, Colorado, that provides communications infrastructure services. Its core business involves building and operating extensive fiber optic networks to deliver mission-critical bandwidth, colocation, and cloud infrastructure solutions. Zayo aims to fuel innovation by providing light-speed data transmission infrastructure to its diverse customer base.

The company offers a comprehensive suite of products and services, including dark fiber, wavelengths, Ethernet, SD-WAN, IP services, colocation, wireless backhaul, and private data networks. Zayo serves a wide range of market segments, including wireless carriers, national carriers, internet service providers (ISPs), enterprises, and government agencies, with specialized solutions for industries such as healthcare, finance, and media. Its expansive network spans over 224,000 route miles across North America and Europe, positioning it as a leading global internet backbone provider.

In a significant development, Zayo completed the acquisition of Crown Castle's Fiber Solutions business for $4.25 billion on May 1, 2026, substantially expanding its metro fiber footprint and enterprise reach, particularly to support the accelerating demand for AI and cloud infrastructure. This acquisition added approximately 90,000 route miles and 40,000 on-net enterprise locations to its network. Zayo was taken private in March 2020 by global investment firms EQT AB and Digital Colony Partners in a $14.3 billion deal. Steve M. Smith serves as the Chief Executive Officer, leading the company's strategic direction in the evolving digital infrastructure landscape.