Hogan's City base excels with 28 per cent growth

Washington DC-based Hogan & Hartson has had a bumper year in London with revenues rising by 27.6 per cent, from $43.1m (£21.96m) to $55m (£28.03m).

The UK arm of Hogan comfortably outperformed the firm as a whole, which increased revenue by 16.6 per cent to $880m (£448.45m). The growth in London's average profit per equity partner (PEP) figure was even more pronounced, hitting $1.5m (£760,000) compared with a global average of $1.19m (£600,000).

"There aren't many US firms which send money back to the States, but London sent a lot back this year," claimed a source close to the firm.

Hogan has benefited from the boom in corporate transactional work, with established clients in the US such as Ford and General Electric using the London office much more.

The London office has also worked closely with the Moscow office, which boasts clients such as the world's largest nickel company Norilsk. It is also advising a Gazprom and Mol joint venture on a pipeline project in the Black Sea region.

"The tax department is also a big department for Hogan and it's been doing a lot of work for News International," said the source.

The London office has 13 partners and 47 lawyers in total, with a revenue per partner of $2.6m (£1.32m) and a revenue per lawyer (RPL) figure of $965,000 (£491,800).

For the firm as a whole RPL was up by 11 per cent to $850,000 (£433,200), while PEP rose by 18 per cent, from $1.01m (£510,000) to $1.19m (£600,000).

Partner Steve Immelt, who manages the firm's international offices, said he was pleased with Hogan's progress in Europe and is now set on boosting the Los Angeles office to service Asian tech companies with their IP and regulatory strategies.