Three-year European bachelor's degree not equivalent to a US bachelor's degree?

I have a three-year bachelor's degree from a European university (Bologna system - 180 ECTS) and want to apply to a US grad school. However, there is one problem, according to SpanTran (credential evaluation company), my three-year bachelor's degree is not equivalent to a US bachelor's degree.

I am searching for another credential evaluation company, but I am afraid that another evaluation company will also evaluate my three-year European bachelor's degree as not equivalent to a US bachelor's degree.

Are there fellow Europeans here whose three-year bachelor's degree was evaluated as equivalent to a US bachelor's degree and by which company?

Thanks!