# Cardi Prinzi

> Cardi Prinzi is the Chief Executive Officer of Sail Internet, a Bay Area fiber and fixed-wireless ISP serving residential and business customers across Silicon Valley and San Francisco. With more than 30 years of senior leadership in telecommunications - spanning Sprint, MCI Worldcom, Equinix, TelePacific, New Edge Networks, EarthLink, Pacnet, Telstra, and Windstream Enterprise - Prinzi brings deep expertise in strategic vision, product development, and revenue growth to one of the region's most customer-focused internet providers. Since joining Sail Internet in 2024, she has overseen a period of significant expansion including the acquisitions of Paxio Residential, Paxio MDU, and Ether Web Network, plus a high-profile partnership with Twist Broadband.

- **Role:** CEO at Sail Internet
- **Organizations:** Sail Internet, X4 Advisors, Windstream Enterprise, Telstra, Pacnet, EarthLink Business, New Edge Networks, TelePacific Communications, Equinix, MCI Worldcom, Sprint, GTA | Teleguam Holdings LLC
- **Nationality:** American
- **Education:** Bachelor of Arts in English/Journalism, Western Michigan University
- **Known for:** Named CEO of Sail Internet in February 2024, succeeding co-founder Kevin Fisher who moved to CPO role, Oversaw Sail Internet's acquisition of Paxio Residential (September 2024), expanding Bay Area fiber footprint, Oversaw Sail Internet's acquisition of Paxio MDU (August 2025)

## Career timeline

- **1992-1999** — Early telecom career at Sprint and MFS/MCI Worldcom during the long-distance competition era and MFS acquisition period
- **2000-2003** — Executive Vice President, Sales & Marketing at Equinix; company merged in 2003
- **2003-2009** — Senior Vice President, Marketing at TelePacific Communications (CLEC)
- **2009-2010** — President at New Edge Networks
- **2011-2012** — Executive Vice President, Marketing at EarthLink Business (Jan 2011 - Sep 2012)
- **2012-2015** — President, Global Markets at Pacnet, a subsea fiber business (Sep 2012 - Apr 2015); Pacnet acquired by Telstra
- **2015-2018** — Senior Vice President, Americas at Telstra (Apr 2015 - Jul 2018); ran US sales operations
- **2019-2020** — Executive Vice President / Chief Marketing Officer at Windstream Enterprise (Feb 2019 - Apr 2020); led product, marketing, PR, branding, and sales enablement
- **2020-2023** — Partner at X4 Advisors; strategic consulting for telecom and technology organizations
- **2022-2023** — Advisor at GTA | Teleguam Holdings LLC (Dec 2022 - Dec 2023)
- **2024** — Named Chief Executive Officer of Sail Internet (announced February 14, 2024)
- **2024-2025** — Led Sail Internet through acquisitions of Paxio Residential (Sep 2024), Paxio MDU (Aug 2025), and Ether Web Network (Nov 2025), plus Twist Broadband partnership

## Achievements

- Named CEO of Sail Internet in February 2024, succeeding co-founder Kevin Fisher who moved to CPO role
- Oversaw Sail Internet's acquisition of Paxio Residential (September 2024), expanding Bay Area fiber footprint
- Oversaw Sail Internet's acquisition of Paxio MDU (August 2025)
- Oversaw Sail Internet's acquisition of Ether Web Network (November 2025), extending reach into East Bay and Central Valley
- Partnered with Twist Broadband to serve 100,000+ households in San Jose, Santa Clara, and Milpitas
- Previously led US sales for Telstra across Americas territory for three years
- As President of New Edge Networks, led a company that was later absorbed into Windstream via EarthLink
- At Windstream Enterprise, led product, marketing, PR, branding, and sales enablement as EVP/CMO
- Ran Global Markets for Pacnet before its acquisition by Telstra in 2015
- More than 30 years of senior management experience across the full telecom stack - from subsea fiber to last-mile fixed wireless

## Latest updates

- **2025-11** — Sail Internet under Prinzi's leadership acquires Ether Web Network, extending coverage into Livermore, Pleasanton, Dublin, and San Ramon in the East Bay.
- **2025-08** — Sail Internet acquires Paxio MDU business, deepening multi-dwelling unit coverage in the Bay Area.
- **2024-10** — Twist Broadband, powered by Sail Internet, launches in San Jose reaching 100,000+ households.
- **2024-09** — Sail Internet acquires Paxio Residential business, effective September 1, 2024.
- **2024-02** — Sail Internet officially announces Cardi Prinzi as new Chief Executive Officer on February 14, 2024.

## Links

- Website: https://sailinternet.com
- LinkedIn: http://www.linkedin.com/in/cardiprinzi
- Twitter/X: https://twitter.com/sailinternet
- Facebook: https://www.facebook.com/sailinternet

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Profile page: https://yespress.io/cardi-prinzi
Published by YesPress — https://yespress.io
Last updated: 2026-05-17