Optimas is seen as one of Shamrock International's biggest rivals. Optimas is headquartered in Wood Dale, Illinois, and was founded in 2015. Like Shamrock International, Optimas also works within the Real Estate & Construction sector. Optimas generates 1,716% the revenue of Shamrock International.
Birmingham Fastener is one of Shamrock International's top rivals. Birmingham Fastener is a Private company that was founded in Birmingham, Alabama in 1980. Birmingham Fastener operates in the Industrial Suppliers industry. Birmingham Fastener has 70 more employees vs. Shamrock International.