Cardi
Prinzi

In February 2024, Sail Internet announced that Cardi Prinzi was its new Chief Executive Officer. The announcement was quiet by Silicon Valley standards - no nine-figure fundraise, no marquee VC names in the headline. Just a seasoned telecom executive walking into a ten-year-old Bay Area ISP and getting to work.

Prinzi's career reads like a guided tour of every era in American telecommunications. She was at Sprint during the long-distance competition wars of the early 1990s. She was at MFS/Worldcom when MFS got acquired - one of the deals that helped define telecom consolidation before the dot-com crash rewrote everything. She ran sales and marketing at Equinix in its early years, from 2000 to 2003, before the data center industry was anything like the infrastructure backbone it is today.

After Equinix, she spent six years at TelePacific Communications as Senior Vice President of Marketing, working the CLEC market. Then New Edge Networks, where she was President - a company that would eventually be absorbed into Windstream through the EarthLink acquisition. Small world, telecom.

The global chapter came next. As President of Global Markets at Pacnet - a subsea fiber business spanning the Pacific - Prinzi was running deals across continents. In April 2015, Telstra acquired Pacnet, and Prinzi stayed. For three years she ran the Americas territory for Telstra, connecting US enterprise customers with Australian-backed fiber infrastructure that crossed entire oceans to reach them.

In early 2019, she joined Windstream Enterprise as Executive Vice President and Chief Marketing Officer, leading product development, marketing, PR, branding, and sales enablement. UCaaS - unified communications as a service - was her beat. In an October 2019 interview with Telecom Ramblings, she noted that enterprise customers had stopped asking whether they would move to cloud communications. They were asking when. That shift, from "if" to "when," is the kind of market signal that takes years to read correctly. She'd been reading telecom signals for over two decades.

Windstream was in bankruptcy proceedings during that period. Prinzi departed in April 2020. What followed was a pivot to advisory work - three years as a Partner at X4 Advisors, and a stint advising GTA | Teleguam Holdings LLC, the principal telecom provider for Guam. Different scale. Same discipline.