Subcom Excavation is a construction company based out of Washington County in Hillsboro, Oregon founded by Joe Mallory and His father Dennis Mallory. Subcom specializes in private and public infrastructure projects including residential work and environmentally sensitive enhancement projects. Subcom has over 100 years of combined experience in the construction industry. Subcom takes pride in quality craftsmanship, reliability on completing projects in a quick manner while hitting a budget.