US firm Mayer Brown & Platt is boosting its London operation by sending two top partners from its international offices.
Securitisation partner Kevin Hawken is being pulled in from the firm's head office in Chicago, while telecoms partner Mark Nicolaides is transferring from the firm's German office.
The London office now boasts around 25 lawyers, 10 of whom are partners, and it plans to continue bolstering its key practice areas.
London managing partner Ian Coles says that the moves strengthen two of the most important areas of the practice. "The importance of the securitisation practice to the firm made the decision to relocate Kevin easy.
"We intend to have a securitisation practice in Europe which is equivalent to our renowned practice in the US," he says.
"Kevin's move announces our intention to allocate whatever resources are necessary to achieve that."
Hawken specialises in securitisation and cross-border transactions and has done securitisations of receivables, loans securities and most other types of financial assets.
Nicolaides is a specialist in telecoms, media and technology transactions. His biggest long-standing client is Deutsche Telekom, which he advises on acquisitions, joint ventures and investments in the US, Europe and Asia.
Most recently he represented the company on its acquisition of $2bn (£1.3bn) worth of mobile telecom investments in Central Europe, which was the largest transaction to date in the region.
Coles says: "We are well on the way to replicating the strength and depth of our US telecoms practice in Europe."