About Us
Your Partner in Packaging Excellence
Headquartered in Ontario, California, we serve clients nationwide with responsive support, expert service, and reliable fulfillment.
Our Mission & Approach
Our Commitment to Your Success
GWC isn’t just a supplier — we act as an extension of your operations. From design and equipment to servicing and logistics, we walk with you every step of the way.
Consultative Mindset
We believe packaging is more than materials. It’s a strategic asset. We bring business thinking to packaging—designing, servicing, and optimizing around your goals.
Local Roots, Regional Reach
Based in Ontario, CA, we serve clients across Southern California and beyond. Our deep industry experience, paired with local presence, gives you fast response + high quality.
Let’s Talk
Tell us what you need—supplies, equipment, service, or all of the above. We’ll get to know your operation and goals.
We Come to You
One of our experts will visit your facility to understand your workflow and identify the right solution—on your terms and timeline.
Get Transparency
We’ll provide a clear, honest quote—no surprises, just what you need to make an informed decision.
We Get It Done
Whether it’s delivering packaging materials, installing new equipment, or servicing your machines—we show up, get it done, and stay available when you need us.
William Shih, CEO
William started GWC Packaging with a passion for helping businesses simplify and strengthen their packaging operations. With decades of hands-on experience, he leads with vision, integrity, and a genuine commitment to customer success. When he’s not solving packaging challenges, you’ll find him exploring new ideas that move the industry forward.
Cathy Shih, COO
Cathy keeps GWC running smoothly — balancing strategy, operations, and finance with ease. She’s the heartbeat behind the company’s organization and efficiency, always focused on quality and people. Her calm leadership style and attention to detail ensure every customer experience runs seamlessly.
Mick Fryhoff, Sales
Mick brings energy, expertise, and heart to every customer relationship. He’s all about finding the right solution — not just a sale — and takes pride in helping businesses grow through smarter packaging choices. Clients love his honesty, enthusiasm, and get-it-done attitude.
Derek Tang, Sales
Derek thrives on building real connections with customers and finding creative ways to make their packaging operations more efficient. He’s approachable, reliable, and always ready to go the extra mile to deliver great results — with a smile.
Arianne Jackson, Marketing
Arianne brings GWC’s story to life through creative, strategic marketing that connects with customers. She’s passionate about clear communication, strong visuals, and building brand experiences that feel authentic. Her mix of creativity and insight keeps GWC’s message sharp and engaging.
Carlos Romero, Operations
Carlos keeps GWC’s operations moving — literally. With a sharp eye for detail and a strong work ethic, he ensures every order is packed, organized, and shipped with precision. His reliability and team spirit make him an essential part of GWC’s backbone.
Alejandro Viramontes, Operations
Alejandro makes sure everything gets where it needs to go — on time and in perfect condition. He’s known for his calm under pressure and his ability to keep things running smoothly, no matter how busy it gets. Simply put, if it ships, Alejandro’s got it handled.
Paola Espinosa, Sales
Paola brings a sharp eye for detail, a deep understanding of packaging challenges, and a passion for helping customers find the perfect solution — fast. With years of experience in B2B sales and a knack for building lasting relationships, she’s a go-to resource for clients looking to streamline their packaging operations.
Let’s Talk Packaging
Whether you need materials, automation, repairs, or a full system upgrade — we’re here to help.