Charles Machine Works, The Underground Authority

The Charles Machine Works’ Family of Companies offers on-the-job solutions in all areas of underground construction. More importantly, the people of Charles Machine Works offer a unique perspective — a shared commitment to apply knowledge of the industry to solve today’s infrastructure challenges.

As the Underground Authority, the company brings together the world’s most knowledgeable underground construction professionals, delivering expertise, insight, and market-leading solutions for a stronger and more stable future.

Charles Machine Works represents the best of both worlds: a strong company anchored with deep roots and a workforce equipped for the future.

Established in 1902, Charles Machine Works, an employee-owned company founded in Perry, Oklahoma, is the only manufacturer and global distributor that solely exists to make underground utility construction profitable. Its family of companies includes Ditch Witch®, Subsite® Electronics, DW/TXS®, HammerHead®, Radius® HDD, American Augers®, Trencor®, and MTI® Equipment.