cnc milling

Our Capabilities.

  • Full 4-Axis Machining


  • Small Parts Specialists


  • Close Tolerances to ±.0003”

  • 23 Modern CNC Machines


  • AS9100 & ISO 9001 Certified


  • Quality & Service Since 1968

Learn more about RMI®...


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The RMI® story.

After moving to Southern California in 1960 and working for several local aerospace manufacturers, Roy Rothlisberger founded Rothlisberger Manufacturing, Inc. (RMI®) in his garage just north of Los Angeles in 1968. Roy’s combination of quality workmanship and exceptional customer service was a recipe for success and the new business grew and prospered. In those days there was no such thing as a vision statement, but if there was it would have been: “True Excellence Exceeds Compliance.” The following decade saw steady growth and an increasing base of satisfied customers; and in 1978 RMI® moved to its current location in Van Nuys, California.
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Roy Rothlisberger, Founder

True Excellence Exceeds Compliance.

Under the leadership of Roy’s son, Jerry Rothlisberger, RMI® continues the tradition of excellence that began more than fifty years ago. Today, we have twenty-three state-of-the-art CNC machine tools, a host of support equipment including O.D. grinding and honing, and a team of highly-skilled craftsmen all with one goal in mind: to provide you with the best quality products and customer service in the business. We use an advanced GibbsCAM CAD/CAM system for digital data file processing, and our facilities are certified to AS9100D and ISO 9001:2015. In 2015 RMI® acquired the assets of Noble Machine, adding highly-trained personnel, top-of-the-line manufacturing equipment, and one additional customer: Northrop Grumman Electronic Systems. We also increased our existing manufacturing space by more than 2,000 square feet.

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Over the years RMI® has built a solid reputation in the precision contract machining industry by delivering what our customers need when they need it. We specialize in small-to-medium-size precision machined parts and assemblies in quantities ranging from one to thousands. We have the knowledge and expertise required to machine very small parts with tolerances of less than .0003”. We machine parts using a wide range of materials from aluminum to steel to plastic, and we offer in-house light assembly services and NADCAP-approved outside processing to provide you with a total precision manufacturing solution.

At RMI® our team of manufacturing experts has been building precision components and assemblies for more than five decades.  We have the knowledge and experience to deliver top-quality products on time, every time.

Contact us and find out what our team can do for you.


cnc milling

What's new at RMI®.

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RMI® is Cyber-Secure per NIST SP 800-171

March 2023

More than ever before, today’s aerospace industry relies on secure and resilient supply chains to operate effectively and safeguard sensitive information.  At RMI® we take our responsibility for securing Covered Defense Information (CDI) very seriously.  To that end, we comply with DFARS clauses 252.204-7019 and 252.204-7020 and we follow the guidelines outlined in NIST SP 800-171.

We have successfully implemented robust security controls at RMI® to protect sensitive information from unauthorized access – including access management, encryption, and secure communication channels.  Through our comprehensive security framework, we ensure that CDI remains protected throughout the manufacturing process, while our ongoing employee awareness program guarantees that everyone at RMI® understands their responsibilities for protecting CDI.

Over the years we’ve worked hard to build trust with our customers in the aerospace industry, and our commitment to Cyber Security strengthens these relationships and instills confidence in our products and service.  At RMI® we are proud to do our part and contribute to the security and resilience of the US Defense Supply Chain.  Please contact us for more information about Cyber Security at RMI®.

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Noble Machine Acquisition is a Big Success!

January 2018

In April 2015, RMI® acquired the assets of Noble Machine Company including manufacturing equipment, key personnel, and several top-tier customers, among them Northrop Grumman Electronic Systems.  We are very pleased to report that this acquisition has greatly enhanced our operations, with increased machining capacity and even greater value for our customers.  The variety of parts manufactured by RMI® has grown by 18%  and our stellar quality and delivery performance have never been better.

Over the years RMI® has built a solid reputation in the precision contract machining industry by delivering what our customers need, when they need it; and we remain committed to offering the best products and customer service in the business. To learn more about our operations or how to do business with RMI® please contact us today.

RMI® offers cutting-edge technology and over five decades of precision machining expertise.  Put our team to work for you.


Call Us at (818) 786-8366