Channel Islands Opto-Mechanical Engineering, Inc. (CIOME) has been in business for over 30 years. We have two main goals here. One, we believe in providing our clients with the highest quality services possible. This core belief not only applies to the services that we provide, but also the products that we create. We believe in only engineering top of the line products, and because of this belief, we are one of the most respected Machine Shops in Ventura, Oxnard, Ventura County, Los Angeles County, and throughout the entire United States. Also, we have created a web of referrals that we regularly employ when an issue arises, or if there is a particular task that we are not able to service ourselves. The second goal that we have is to provide reliable and valuable products to our clients in a timely manner. We also believe that our commitment to our staff and our clients is a component of this second goal. We believe that businesses can only get the best results from their employees when they treat their employees like people.
Here at CIOME, we are dedicated to a simple cause, and that cause is responsible business practices that help small, medium and large businesses. Following these practices has helped us to create a family environment at CIOME.
Channel Islands Opto-Mechanical Engineering, Inc. (CIOME) looks a little different today than it did when we first started, but we have continued to live by the same values.







Our Team

Meet our experienced team

Mark Pennington


Mark Pennington started machining for D. W. Adair Co. in Torrance Ca. in 1978 right out of High school. Within several years he was managing 8 people in the CNC milling department while doing all the programing quoting and setup. For 2 of his 10 years he was also in charge of quality control for the company. After 10 years with this company he moved to Ventura County in 1988, where he started working for CIOME as there only machinist at the time. In 2001 he purchased 25% of CIOME and continued running the machine shop, he then took over managing the Optics department at the same time. During that time he also took over all of the bidding for the entire client base for the machine shop and optical department which he continues to do at present date. In 2011 he became 75% owner and President of CIOME. Mark has been working in the machining industry for over 37 years, starting at the bottom and working his way to the top. CIOME currently has 9 employees which Mark enjoys working with side by side on a daily basis.