# John Doyle

> John Doyle is the Washington-based founder and CEO of Cape, a privacy-focused cellular carrier that operates its own cloud-based mobile core. A computer science graduate, former U.S. Army Green Beret, Harvard-trained lawyer and former head of Palantir's national security business, Doyle founded Cape in 2022 after becoming preoccupied with vulnerabilities in commercial cellular networks. Cape has since served government and consumer customers, launched nationwide service, tested deployments with U.S. naval forces, patented mobile subscriber identity rotation and raised a $100 million Series C at a $900 million valuation in March 2026.

- **Role:** Founder and CEO at Cape
- **Organizations:** Cape, Palantir Technologies, U.S. Army Special Forces, Vannevar Labs
- **Nationality:** American
- **Education:** Bachelor of Arts in Computer Science, Knox College, Juris Doctor, Harvard Law School
- **Known for:** Built Cape from a 2022 startup into a live privacy-focused cellular carrier serving government, enterprise and consumer customers., Led Cape through a successful secure-network pilot with naval forces in Guam., Named as an inventor on U.S. Patent 12,273,725 for Mobile Subscriber Identity Rotation, issued April 8, 2025.

## Career timeline

- **2003-2008** — Served in the U.S. Army Special Forces as a Green Beret, working in communications leadership.
- **2009-2012** — Attended Harvard Law School, participated in the Harvard Legal Aid Bureau and Armed Forces Association, and earned a J.D.
- **2012/2013-2022** — Spent nine years at Palantir, beginning as a forward-deployed engineer and later running its national security business from 2017 to 2022.
- **2021** — Joined the board of defense technology company Vannevar Labs.
- **2022** — Co-founded Cape to build a privacy-focused commercial cellular network.
- **2024** — Cape emerged from stealth, announced $61 million in funding and deployed a secure 4G/5G pilot supporting U.S. naval forces in Guam.
- **2025** — Cape opened its consumer beta with Proton, received a U.S. patent for Mobile Subscriber Identity Rotation, and Doyle testified in Congress about cellular threats to military personnel.
- **2026** — Cape exited beta in January and raised a $100 million Series C at a $900 million valuation in March.

## Achievements

- Built Cape from a 2022 startup into a live privacy-focused cellular carrier serving government, enterprise and consumer customers.
- Led Cape through a successful secure-network pilot with naval forces in Guam.
- Named as an inventor on U.S. Patent 12,273,725 for Mobile Subscriber Identity Rotation, issued April 8, 2025.
- Testified in Congress in October 2025 about threats created by adversarial access to commercial cellular data.
- Raised a $100 million Series C for Cape at a $900 million valuation in March 2026, bringing the company's stated total funding to $191 million.
- Previously led Palantir's national security business from 2017 to 2022.

## Latest updates

- **2026-09** — Cape published an independent Trail of Bits attestation of its disappearing-call-log retention claims, which Doyle promoted publicly.
- **2026-06** — Doyle appeared on Crossing the Valley to discuss Cape's origin, the economics of building a carrier and its defense deployments.
- **2026-03** — Cape raised a $100 million Series C at a $900 million valuation, co-led by Bain Capital Ventures and IVP.
- **2026-01** — Cape ended its consumer beta and launched its service broadly in the United States.
- **2025-10** — Doyle testified in Congress about cellular-network threats to Department of Defense personnel.

## Links

- Website: https://www.cape.co
- LinkedIn: https://www.linkedin.com/in/john-doyle-48633227
- Twitter/X: https://x.com/JohnDoyleCape

---

Profile page: https://yespress.io/john-doyle
Published by YesPress — https://yespress.io
Last updated: 2026-09-26