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Tiago Rittner


Tiago focuses on private equity.

His advice includes mergers and acquisitions and various corporate and commercial law aspects. In addition, Tiago advises on distressed restructurings and the implementation of tax structurings and corporate reorganizations.

Before joining the firm, Tiago worked as a law clerk for two major US firms in M&A and complex litigation.


Representative matters

IU International University, an online education provider, on the investment of its management on the occasion of a shareholder exchange.

Riverside and its portfolio company vertical could solution GmbH on the acquisition of Die Lohnfabrik Payroll-Services GmbH & Co.KG, a software provider in the payroll sector, as part of an add-on acquisition to expand the area of workforce management software solutions.

Riverside on the acquisition of Gastromatic, a leading SaaS provider of workforce management software solutions for small and medium-sized businesses operating in shift-based industries.

Riverside on the acquisition of Dastex Reinraumzubehör GmbH & Co, a leading specialised independently owned cleanroom garment & co

Riverside and its portfolio companies regarding corporate governance advice.

PAI Partners, a pre-eminent private equity firm, on its acquisition of Infra Group, a multi-disciplinary network infrastructure services provider. 

Nimbus on the sale of the Battenfeld-Cincinnati Group and the Exelliq Group, together a leading manufacturer of extrusion machinery and equipment. 



Admitted as German Rechtsanwalt (Rechtsanwaltskammer München), 2023


Second German Law Degree, Higher District Court of Celle, Germany, 2022

First German Law Degree, University of Hannover, Germany, 2020

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.