BEDFORD, Mass.--(BUSINESS WIRE)--Spire Corporation ("Spire" or the "Company") (OTC: SPIR), a global solar company providing capital equipment and turnkey manufacturing lines to produce and characterize photovoltaic ("PV") modules, today announced that it has engaged Mirus Capital Advisors, ("Mirus") an investment bank located in the metropolitan Boston area, for the purpose of assessing strategic alternatives for Spire, including, but not limited to, a potential sale of the Company and/or certa