Our Story

Serving communities. Saving lives.

Built by a Fire Chief.
Built for Everyone.

Guard Your Heart was founded on a simple, devastating observation: the device that saves lives during cardiac arrest is almost never in the place where cardiac arrest actually happens.

Why We Built This

The problem was always the same.

After decades in fire service, Nathan Cooke had seen the same thing too many times. A cardiac arrest. Off duty. At home. A family unprepared. EMS arriving too late to change the outcome.

The fire service has spent generations building cardiac readiness on the job — AEDs on every apparatus, in every station, trained crews who know exactly what to do. And then those same people go home to a house with nothing.

73% of cardiac arrests happen at home. The math was clear. The gap was real. And nobody had built a systematic answer for it.

Guard Your Heart is that answer — not just for first responders, but for every at-risk household in every community. The physical worker. The retiree. The family with a history of cardiac events. Anyone whose home deserves the same protection as the buildings they spend time in.

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We train people to save strangers. We put AEDs everywhere they work. And then we send them home with nothing. Guard Your Heart fixes that — for all of them.

Nathan Cooke
Co-Founder & Fire Chief
The Founders

The people behind the program

Kyler Cooke
Kyler Cooke
Co-Founder & CEO

Kyler co-founded Guard Your Heart after years as a senior advisor at a commercial real estate firm, where he developed a deep understanding of how institutions make decisions that protect their people. His passion for cardiac readiness is personal — and his background in operations, partnerships, and growth is what allows the mission to scale. He ensures every organization that says yes gets a program that actually works, from the first call through annual maintenance.

Nathan Cooke
Nathan Cooke
Co-Founder & Fire Chief

Nathan is a career Fire Chief and certified ZOLL AED dealer who built Guard Your Heart after spending decades watching cardiac events take people off duty — at home, where nothing was within reach. His credibility in the fire service community is the company's most valuable asset. When Nathan calls a fire chief, it is a peer conversation. That trust cannot be manufactured, and it opens doors that no marketing budget can buy.

Our Mission

Serving communities.
Saving lives.

We are a ZOLL certified AED dealer based in San Diego, California. Our mission is simple: get life-saving AEDs into the homes of at-risk people across America — through the organizations, employers, and communities that care for them.

255K

Americans die of cardiac arrest at home every year. That number is what drives everything we do.

Up to 70%

Survival rate when an AED is used quickly. That number is what we're working toward — one home at a time.

Let's protect
your community.

Whether you're a fire chief, a union leader, an HR director, or a family — we want to hear from you. Every conversation starts with listening.

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Or write directly:

info@guardyourheart.us