About Valley Machining Company


In 1980, Len Van Otterloo and Chuck Ver Steeg established Valley Machining Company (VMC) in Rock Valley, Iowa. VMC is a manufacturer of custom-machined products and assemblies. Through innovative ideas & progressive attitude, VMC has become a world-class supplier.

Over the years Valley Machining grew from an Iowa area supplier of screw machine products to a Midwest supplier of screw machine and precision CNC machining.

Today Valley supplies precision screw machine products, CNC lathe and CNC mill products and assemblies across North America and exports around the world

VMC became an "Employee Owned" company in 1997, and currently has 85 full time employees.

Quality System - ISO 9001:2008

Valley Machining Co. passed their initial ISO Registration Audit in 1998. High quality parts begin with a strong quality management system.

An Employee-owned Company

Valley Machining Company is employee owned and that means all our employees have a vested interest in the future of the company and in your product. Your success is our success!

Customer Service

The Sales Team at VMC

ISO 9001:2015 Certified

VMC's ISO Certificate

VMC Location


Contact Details

1250 22nd Ave.
PO Box 155
Rock Valley, IA 51247
Phone (712) 476-2828
Fax (712) 476-2829
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