Meet the Founder

Hey, I'm Sandi!

Disabled entrepreneur, artist, problem solver. Building adaptive tools that give people back control — one zip at a time.

Sandi DeRuntz, Founder of ZipperBuddy
My Story

Built from
lived experience.

I grew up in a family where imagination was just part of daily life — my mother painted murals across the walls of our home, my father approached every problem like an engineer. I never thought of creativity as a talent. It was a language. And it became the way I survived everything that came next.

In my twenties I was touring the country doing stand-up comedy — Boston to Los Angeles — while raising two kids and stretching every dollar creatively enough to keep life moving forward. All while navigating Lupus, a chronic autoimmune disease that has shaped how I move through the world.

As my health shifted, I kept noticing how many everyday things were built without people like me in mind. Tasks most people never think about — like closing a jacket — could suddenly shape my whole day. It wasn't that I wasn't capable. It was that the world wasn't built for my body's new reality.

And for some reason, Massachusetts still refuses to honor my very reasonable request for 72-degree dry heat year-round. Since I couldn't fix the weather, I started fixing what I could control.

For people navigating mobility changes, the options felt bleak: expensive adaptive clothing, clinical-looking garments, or needing help for a basic zipper. I didn't want a medical label. I wanted to wear my own coat.

Sandi DeRuntz
Sandi DeRuntz
Founder & Inventor
Sandi at ZipperBuddy event
Sandi and Amanda at the beach
The Turning Point

During the pandemic, Sandi and her children lost their home in an apartment fire. Within the following year, she lost her closest friend Amanda to suicide.

Suddenly, the humor disappeared. The paintbrush felt heavy. Nothing felt funny anymore.

But grief has a strange way of revealing purpose.
Bob testing ZipperBuddy
The Catalyst

A problem most people
never think twice about.

In Amanda's honor, Sandi returned to college at UMass Lowell to study psychology, disability studies, and studio art — drawn toward solving real-world accessibility problems through design.

In a course called Adaptive Devices for Better Life, she met Bob, a stroke survivor who shared a frustrating reality: he couldn't zip his own jacket anymore.

"Because a jacket is not just a jacket in a New England winter.
It's warmth. Protection. Routine. Independence. Identity."

When she searched for solutions, she found almost nothing that respected any of those things. Most adaptive options required replacing entire wardrobes with garments that felt clinical. Sandi refused to accept that. Using office supplies, rapid prototypes, and relentless trial and error, she built the first ZipperBuddy — a magnetic solution to zip independently, with one hand, in the coat you already own.

Founder Philosophy

For us, by us

I believe the tools we use to navigate life should work with us, not force us to change who we are. Accessible design should feel integrated into everyday life — not like a separate category people are pushed into.

ZipperBuddy looks like a tool, not a medical device, because that matters. When your body changes, your sense of self doesn't have to. The wardrobe you love, the coat you've worn for years — those things carry meaning.

This was never built for me alone. It was built for stroke survivors, people with arthritis, older adults, caregivers, families — everyone whose independence has been treated like an afterthought.

Sandi speaking to audience
Sandi on panel

From Idea to Impact

Celebrating excellence and innovation. Click any award to read the full story.

Engineering Prototyping Competition 2023

Engineering Prototyping Competition 2023

1st Place

Built the first working prototype of ZipperBuddy — where the idea became real.

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50k Idea Challenge 2024

50k Idea Challenge 2024

Contribution to a Healthier Lifestyle Award

Recognized for improving independence, dignity, and everyday accessibility.

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Legal Services Prize 2024

Legal Services Prize 2024

Award Recipient

Supported the patenting and protection of ZipperBuddy’s innovation.

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Boston University IdeaCon 2024

Boston University IdeaCon 2024

Ignite Speaker

Selected to share the story behind ZipperBuddy on a national stage.

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UMass Lowell 2025

UMass Lowell 2025

Chancellors Medal for Diversity & Inclusion

Honoring leadership in accessibility, advocacy, and inclusive design.

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REMARKABLE Pre-ACCELLERATOR 2024

REMARKABLE Pre-ACCELLERATOR 2024

Global Pre-Accelerator

Selected for a global program supporting disability-led innovation.

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NSF I-Corps UML Program 2024

NSF I-Corps UML Program 2024

Entrepreneurial Training

Participated in NSF I-Corps, gaining tools to evaluate market potential and advance ZipperBuddy toward real-world use.

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New England Fashion Week 2025

New England Fashion Week 2025

Featured Designer

Showcased ZipperBuddy on the runway, bringing adaptive fashion into a traditional fashion space. Sponsored by HumanKind Casting.

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FORGE Fall Startup Showcase 2025

FORGE Fall Startup Showcase 2025

Exhibiting Startup

Showcased ZipperBuddy to investors and manufacturers in the hardtech ecosystem at Dassault Systèmes

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Get Started

Ready to zip with one hand?

Find the right ZipperBuddy for your jacket and start dressing on your own terms.