Getting all classes in a namespace via reflection

var asm = Assembly.Load("Some.Assembly.Name");
var nameSpace = "Some.Namespace.Name";

var classes = asm.GetTypes().Where(p =>
     p.Namespace == nameSpace &&
     p.Name.Contains("ClassNameFilter") 
).ToList();

from : http://stackoverflow.com/questions/79693/getting-all-types-in-a-namespace-via-reflection