G&K Machine Company

Colorado Gear Manufacturer

4833 Newport St,
Commerce City, CO 80022



As a family owned business, we are committed to personal service and care, providing each customer with the customized job or products they need for their industry. We are always striving to update our equipment with the latest technology to meet the ever-changing demands of the gear and machining environment. We value customer relations, maintaining some for more than 20 years.



Our long standing customers are a testament to our strong dedication to customer satisfaction, backed by our personal product guarantee.  



In 1961, Frank Grimes and Tyler Kerr decided to pursue their own business. They founded G&K Machine Company to specialize in the machining and repair needs of the underground mining industry. Their company was met with great success, but not in the area they expected. Gear manufacturing became the turning point for them. They soon realized that this needed to be their main focus, turning it into the backbone of their young company. In the past five decades, our company has expanded, seeing three generations of well-trained ownership. In the 1980s, we added computer controlled equipment to our services, developing into a full-service job shop. Our growth and expansion has allowed us to serve almost any industry, from automotive to aerospace.



Our dedication to our craft and the family business mindset mean we offer a wide variety of services to numerous customers. Our services for gears and milling or turning products include the following:

  • Gear Hobbing and Shaping

  • Keyseating

  • CNC Lathes

  • CNC Machining Centers

  • Manual machinery

  • Reducer building and repair

  • Repair and Welding