GMK Business Group, LLC
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Heartfelt Service, Quality You Can Trust

At GMK Business Group, LLC, we embody the spirit of community with two pillars of excellence: Grandma Mattie's Catering and our automotive sales division. Located in Antioch, CA, our mission is to provide unforgettable culinary experiences and reliable vehicles—all rooted in integrity and genuine customer care. Founded by George Young, we're dedicated to upholding trust, quality, and tradition in every service we offer.

Frequently Asked Questions

Find answers to common questions about our catering and automotive services.

What catering services do you offer?

Grandma Mattie's Catering offers a variety of services including event planning, menu customization, and delivery to ensure a memorable dining experience for any occasion.

How can I book a catering event?

To book a catering event, simply contact us at (925) 783-5663 or email info@grandmamatties.com for inquiries and to discuss your specific needs.

What types of vehicles do you sell?

Our automotive division specializes in reliable used cars, trucks, and SUVs, ensuring each vehicle meets high-quality standards before sale.

Can I get financing for a vehicle?

Yes, we offer flexible financing options to help you secure the right vehicle at a fair price, regardless of your credit history.

What sets GMK apart from other businesses?

GMK Business Group, LLC is unique in our dedication to integrity, quality, and exceptional customer service in both catering and automotive sales.

Where can I find more information?

For more information, you can visit our website or reach out to us directly via phone or email. We're here to assist you!

Want to learn more about how GMK Business Group can support your next event or vehicle purchase? Discover the values and service that set us apart and reach out to get personalized assistance.
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