Your Expert EDM Shop
Custom EDM is the go-to EDM machine shop for Silicon Valley and beyond.
Since 1971, Custom EDM has been a reliable partner to some of America’s most important industries from semiconductor equipment, medical devices, and scientific equipment, to defense, aerospace, energy, and automotive.
We’re here to machine your most challenging components.
Specializing in prototype to production EDM projects, we develop innovative solutions for our customers. Custom EDM is the EDM machine shop that world-class manufacturers trust to get their projects done right the first time–and every time after that. We are a complete EDM machining company with top EDM machining talent and the latest equipment for Sinker EDM and Wire EDM. We’ve also developed a proprietary process for delivering pristine, oil-free parts for medical and technology applications called Clean Sinker EDM.
Founded before EDM was cool–and here to stay.
Custom EDM LLC was founded in 1971 as Alpine Tool & Manufacturing by Joe Giangrasso and later purchased by his son, John, in 2001. Just days after the 9/11 attacks.
Talk about a challenge!
That’s not the only challenge Custom EDM has had to endure, and it won’t be the last. Custom EDM is here to stay, whatever it takes. Big challenges are just another opportunity for us to find innovative solutions.
We continuously add new equipment, capacity, and capabilities to expand our EDM prototyping and production capabilities. Now more than ever, Custom EDM is able to assist our customers with simple or complex projects and serve their individual needs efficiently and accurately.
Whether you need complete EDM sinking, cutting, or drilling production solutions requiring a high level of care and repeatability, or you’re looking for a reliable partner to process your secondary operations, we’re here for it.
We maintain close personal relationships with our customers and work hard to continually improve our performance and services. Thriving through decades of economic downturns and offshoring, our pristine, modern 6000-square-foot facility in the San Francisco Bay Area near Silicon Valley is filled with state-of-the-art EDM machines that are kept in mint condition.
Our list of satisfied customers includes businesses in the semiconductor capital equipment, medical, energy, electronics, defense, and aerospace industries.
Ready to work with an EDM machine shop that gets it?
Machine shops bring us their most precious parts for EDM cutting and drilling because they know we’ll handle them with the utmost care and make those final cuts with the highest level of precision.
World-class corporations bring us their most unique design challenges because they know we can develop and execute an innovative solution–and often reduce their production costs.
