Zayo (also known as Zayo Group) is a provider of communications and bandwidth infrastructure. Its key products include leased dark fiber, fiber to cellular towers and small cell sites, dedicated Wavelength connections, Ethernet, IP connectivity, data center colocation, cloud offerings, and other high-bandwidth offerings. The company primarily serves wireless service providers, telecommunications service providers, financial services companies, social networking, media and web content companies, education, research and healthcare institutions, and governmental agencies.