Arnold & Porter testimonial

Kathleen Harris, Managing Partner (London) at Arnold & Porter, shares how Chambers rankings and insight support the firm’s global reputation, cross-border work, and understanding of market needs.

Published on 14 January 2026
By Chambers and Partners
Chambers and Partners

With over 1,000 lawyers across 16 offices worldwide, Arnold & Porter is renowned for its sophisticated regulatory, litigation, and transactional capabilities across multiple industries, including over half of the Fortune 100. Drawing on its deep experience and insider perspectives from both the government and the private sector, Arnold & Porter provides practical, forward-looking solutions to its clients’ most sophisticated U.S., international, and cross-border needs.

Arnold & Porter has70 departments and 133 individual lawyers ranked across multiple Chambers guides including USA, UK and Europe. Here’s what Kathleen Harris, Managing Partner (London) at Arnold & Porter, said about the value of being ranked by Chambers:

“Clients, including in-house legal teams and large corporations, consult Chambers rankings when selecting legal counsel, particularly in complex or high stakes matters. As Chambers has a global reach, our strong international recognition helps us, particularly in cross-border practices.”

Alongside their ranking, Arnold & Porter partnered with Chambers to:

  • Demonstrate their credibility on a global scale
  • Attract and retain top legal talent
  • Understand and address market needs

Here’s what Kathleen Harris said about the value of the partnership with Chambers:

“Because Chambers is recognised as a strong and prestigious legal directory, not just in the UK but globally, we place a lot of significance on the research, rankings and the analysis, to ensure that we're meeting the needs of market.”