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The ATLAS and CMS collaborations at the LHC have performed analyses on theexisting data sets, studying the case of one vector-like fermion or multipletcoupling to the standard model Yukawa sector. In the near future, with moredata available, these experimental collaborations will start to investigatemore realistic cases. The presence of more than one extra vector-like multipletis indeed a common situation in many extensions of the standard model. Theinterplay of these vector-like multiplet between precision electroweak bounds,flavour and collider phenomenology is a important question in view ofestablishing bounds or for the discovery of physics beyond the standard model.In this work we study the phenomenological consequences of the presence of twovector-like multiplets. We analyse the constraints on such scenarios fromtree-level data and oblique corrections for the case of mixing to each of theSM generations. In the present work, we limit to scenarios with two top-likepartners and no mixing in the down-sector.

Interplay of vector-like top partner multiplets in a realistic mixing set-up