About ZeroTier

ZeroTier started with a simple idea: networking shouldn’t be hard. We cut through the chaos of legacy systems with secure, encrypted connections that just work, whether it’s one device or a fleet. Forget complexity. Just connect and go.

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Ethos and what we’re proud of​

ZeroTier enables partners to solve some of today’s most critical connectivity challenges.

Philosophy

We know simplicity is harder than complexity. We believe networking should be both simple and intuitive.

Impact and resilience

We’ve helped shift the industry toward decentralized networking, proved “impossible” demos could become reality, and endured where most startups fade.

Culture and outlook

Rooted in curiosity and resilience, we take pride in solving hard problems together and know the most exciting work still lies ahead.

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From a spark to a global platform

What began as a side project to make networking simpler has grown into a platform used by millions worldwide. This is the story of ZeroTier’s journey.

The spark

Frustrated by slow, manual networking inside a U.S. government project, our founder, Adam Ierymenko, began coding a better way. His goal: make it effortless to connect devices directly, supporting privacy and decentralization. Two years of spare-time coding led to an open-source release in 2013. On the day it went live, his newborn daughter helped tap the enter key to publish the first version, a fitting start to something built for the next generation.

First lines of code

Open-source release on GitHub

Early traction on Hacker News

First angel investment

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2011

2012

2013

2014

From project to company

ZeroTier evolved quickly: ports to Windows, macOS, iOS, and Android; the first version of Central; and the first paying users. Early demos left people stunned (“that’s impossible”), and following the launch, Adam hired a talented group of engineers to form ZeroTier’s Founding Engineering Team. Enterprise customers began deploying ZeroTier in real-world scenarios from Bitcoin hardware to military backpack radios. The first formal investor, Anorak, joined in 2019, marking the transition from side project to real company.

2015

2016

2017

2018

2019

2020

Introduction of packaged downloads

First enterprise customers in Bitcoin hardware and defense

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Grow to a team of four with a small office in Orange County, California

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Early VC conversations

First formal seed from Anorak

Launch of ZeroTier Central

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Scaling up

Pandemic disruption accelerated usage by up to 20% per month and pushed the company to fully remote operations. During this period, Adam also faced and overcame a battle with cancer. The team carried the company forward, a testament to their strength and resilience. A second seed round, followed by Series A, with Anorak Ventures, Bonfire Ventures, and Battery Ventures leading, provided fuel for growth. The leadership team expanded in 2024, with Andrew Gault stepping in as CEO, freeing Adam to focus on building next-generation products as CTO, and Robert Stevenson joining shortly after as CCO. Today, ZeroTier connects millions of devices across industries while laying the foundation for post-quantum secure networking.

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2021

2022

2023

2024

2025

Today

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COVID surge drives usage; company shifts fully remote

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Series A funding lead by Anorak, Battery, and Bonfire

Enterprise growth

Global user rapidly expands

Millions of devices connected

Preparing for post-quantum networking

Second seed

The road ahead

ZeroTier continues to innovate by:

Developing advanced security and connectivity features to keep pace with evolving customer needs.

Expanding enterprise capabilities without sacrificing simplicity.

Staying true to the mission of autonomy, security, and ease at scale.

Meet the team driving the future of networking forward

ZeroTier’s leadership team is driven by the belief that networking should be simple, secure, and reliable. 

Headshot Andrew Gault
Andrew
Gault
CEO
Headshot Adam Ierymenko
Adam
Ierymenko
CTO
Headshot Robert Stevenson
Robert
Stevenson
CCO
Headshot Angelo Rodriguez
Angelo
Rodriguez
SVP of Global
Operations
Headshot Lennon Day-Reynolds
Lennon
Day-Reynolds
Head of Solutions
Architecture
Headshot Jules Petrarca
Jules
Petrarca
Head of
Engineering

Want to build a better internet?

We’re always looking for smart, no-nonsense people who are ready to make an impact. Your next move starts here.