significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms significant portion of city projects go to minority firms