Hogan Lovells, Cravath Swaine & Moore and Cleary Gottlieb Steen & Hamilton have taken lead roles on IBM's sale of its x86 server to Lenovo for $2.1bn (£1.3bn).

The sale, which closed 1 October, sees Lenovo take further steps into the server market after overtaking Hewlett-Packard and Dell to become the world's largest PC maker. 

Cleary acted for Lenovo fielding a team lead by corporate partners Chris Austin and Glenn McGrory in New York and Freeman Chan in Hong Kong. 

Washington DC based partner Brian Byrne and New York based Christopher Cook acted on the anti-trust aspects of the deal.

New York partners Michael Albano, Jason Factor and Leonard Jacoby advised on employee benefits, tax and intellectual property respectively.

Cravath advised IBM on the corporate and tax aspects of the deal, with Hogan Lovells acting on the anti-trust aspects for the buyers.

The Cravath team included corporate partner George Schoen on M&A matters, New York partner Jennifer Conway on executive compensation and benefits matters, tax partner J. Teti, and partner Matthew Morreale on environmental matters.

Hogan Lovells' team was led by partners Janet McDavid and Logan Breed in Washington DC, Adrian Emch in Beijing, Ciara Kennedy-Loest in Brussels and Rachel Brandenburger in New York.

O'Melveny & Myers represented IBM to secure approval from the Committee on Foreign Investment in the United States.