Open Monday - Friday 8:00 am - 5:00 pm

Our Team

Craig Zimmer

Craig Zimmer is founder and president of The Griffon. With more than 35 years of experience in the sign industry, Craig has deep knowledge of the sign industry from concept to design, manufacturing and installation. Craig sets the direction and standard for the company by continuing to work closely with customers, designers and manufacturers to ensure quality product that meets the highest level of satisfaction. Outside of work, Craig enjoys bicycling, boating in Lake Michigan, cooking and spending time with his family.

Zack Zimmer

Zack Zimmer started his work at The Griffon at a young age, where he worked side-by-side with his father to learn the ins-and-outs of the sign industry. Now, with more than 15 years experience, Zack serves as sales executive and works closely with both customers and employees to manage the design and production of The Griffon’s customer signage. When Zack isn’t at work, you can find him enjoying time with his wife and two daughters or tending to his lawn.

Holly Esteban

Holly Esteban joined The Griffon in 2008 as a sales executive. Holly brings nearly 10 years of customer service experience and has built a wealth of knowledge around the signage industry. She is responsible for working closely with The Griffon’s customers, quoting and designing projects and ensuring customer satisfaction after they’ve received their product. Outside of work, Holly enjoys spending time with her husband and four children. They love to travel and explore in their spare time and just recently moved to Texas, which they are absolutely loving. She and her family are devout Catholics and enjoy living & learning about the faith. She’s considers herself an “old soul” and is a huge Elvis fan.

Steve Umstead

Steve has spent the last 35 years in the manufacturing world of machining to sheet metal. Utilizing various CNC pieces of equipment (lasers, robots, press brakes and routers). I have worked extensively with Amazon over the last 8 years and am the inventor of a patented product used in every Amazon Fulfillment Center. Work wise I enjoy project management, design and machines. In my off time I like to spend time with my wife enjoying a convertible ride or a home project. We have 4 children who we are very proud of and we are soon to be grandparents.

Lorraine Zimmer

Lorraine Zimmer serves as vice president of The Griffon where she oversees accounting, human resources and singing happy birthday over the intercom for employee birthdays. When Lorraine isn’t working at The Griffon, she is fully committed to her other job: Lola to seven grandchildren.