Founded in 1953, Criterion Precision Machining is a third-generation, woman-owned precision machining company, based in Brook Park, Ohio, with over 70 years of experience making small parts that do big things.

We specialize in tight-tolerance machining for high-stakes industries, including medical, aerospace, and defense. The kind of work where getting it right isn't optional. From optical housings to small-scale mechanical assemblies, our parts are built to exact specifications, every time. 

Our capabilities include CNC turning, CNC milling, Swiss turning, and advanced quality inspection — supported by a team that treats every job with the same care and precision, whether it's a prototype run or full production.

We're ISO 9001 and ISO 13485 certified, FDA registered, ITAR compliant, and WBENC certified as a women's business enterprise because the industries we serve demand rigorous standards, and we hold ourselves to every one of them.

What really sets us apart is how we work. We make partnerships built on trust, consistency, and attention to the smallest details. We communicate like collaborators, not vendors. And we don't just machine parts — we help our customers solve problems.

When you work with Criterion, your prototypes are produced on the same machines and inspection equipment as your final production parts so the transition from development to production is seamless.

Small parts. Big impact. Made in Ohio.

OUR CORE VALUES

Self leadership & the ability to lead and guide others as well as the organization helps provide clarity to our strategic direction.


Believing in others, keeping confidences, and feeling safe to express vulnerabilities.


A strong feeling of support and allegiance with each other and the company.

Being wholly aligned in principles, words, and actions, while speaking the truth in every situation and relationship.


Do the uncomfortable and take a risk. Having the ability to grow your knowledge and experience personally and profes

Criterion Precision Machining

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Criterion Precision Machining

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