About ACS Industrial Services ACS Industrial Services is a mid-size, third-party electronics repair firm headquartered in Hunt Valley, Maryland. We provide expert repair services for virtually all types of commercial and industrial electronics. Our customers range from small, sole proprietors to Fortune 500 companies. We welcome international customers. Founded in 1999 by Arnie Breidenbaugh, ACS was born out of his frustration with the lack of support provided by the OEM's with which he worked for more than 20 years.