Libertine Seguros said:
Gerdemann, Löfkvist, Velits, Goss and EBH all have something in common in their early career: HTC-Columbia. Even Cavendish isn't producing at his HTC level.
Burghardt, good domestique for Tejay and GVA but didn't the guy once win Gent-Wevelgem and a Tour stage? All his best performances in spring classics were at HTC.
Kirchen, although due to heart disease.
Ciolek, except of course MSR 2013 and a few decent finishes in Hamburg.
Alex Rasmussen, had missed a few controls IIRC? Used to be Denmark's hope for TT's.
Maybe Cervélo TT deserves a mention as well. Although they rode in black, so cleans.
Apart from Haussler:
Reimer, had a spectacular 2009 which he never confirmed.
Appollonio, proven doper.
Konovalovas, the guy that won a Giro TT out of nowhere, a Peter Velits avant la lettre. However, has an impressive 2015 behind his name.