Firm Index · Practice × market
Top Technology, Data & Privacy firms in London
The firms combining the deepest technology, data & privacy footprint with a presence in London, ranked by the Sartori Firm Index.
Technology, Data & Privacy firms in London
These law firms pair a strong public Technology, Data & Privacy footprint with a recorded presence in London, ranked by the Sartori Firm Index — a 0–100 measure of scale, reach and hiring built from public data. The ranking reflects public footprint and momentum, not the quality of any firm's technology, data & privacy work in London.
| # | Firm | Index | Tier | Attorneys mapped | Markets |
|---|---|---|---|---|---|
| 1 | DLA Piper | 76 | Global | 4,000+ | London, New York, Washington… |
| 2 | Ashurst Perkins Coie | 69.6 | Global | 1,500–2,500 | Seattle, London, New York… |
| 3 | Goodwin Procter | 62.3 | Global | 1,500–2,500 | Boston, New York, Washington… |
| 4 | Morrison & Foerster | 57.3 | Global | 1,000–1,500 | San Francisco, New York, Washington… |
| 5 | Pinsent Masons | 57.3 | Global | 2,500–4,000 | London, Birmingham, Manchester… |
| 6 | Cooley | 56.7 | Global | 1,500–2,500 | San Francisco, Washington, New York… |
| 7 | Wilson Sonsini Goodrich & Rosati | 56.4 | Global | 1,000–1,500 | San Francisco, New York, Washington… |
| 8 | Reed Smith | 54.9 | Global | 1,500–2,500 | London, Pittsburgh, New York… |
| 9 | Bird & Bird | 54 | Global | 1,500–2,500 | London, Paris, Düsseldorf… |
| 10 | Birketts | 54 | National | 500–1,000 | Ipswich, Norwich, Cambridge… |
| 11 | Simmons and Simmons | 53.1 | Global | 1,000–1,500 | London, Paris, Milan… |
| 12 | Orrick | 51.4 | Global | 1,500–2,500 | New York, San Francisco, Washington… |
| 13 | Osborne Clarke | 51 | Global | 1,000–1,500 | London, Bristol, Paris… |
| 14 | Taylor Wessing | 50.6 | Global | 1,000–1,500 | London, Hamburg, Düsseldorf… |
| 15 | Fieldfisher | 50.5 | Global | 1,000–1,500 | London, Paris, Dublin… |
| 16 | Pillsbury | 48.2 | Global | 500–1,000 | Washington, New York, San Francisco… |
| 17 | Mishcon de Reya | 45.8 | International | 500–1,000 | London, Singapore, Hong Kong… |
| 18 | Noerr | 45.2 | Global | 500–1,000 | Munich, Frankfurt, Berlin… |
| 19 | TLT | 43 | International | 500–1,000 | Bristol, London, Manchester… |
| 20 | Shoosmiths | 42 | International | 500–1,000 | Northampton, London, Birmingham… |
| 21 | RPC | 40.2 | International | 500–1,000 | London, Bristol, Hong Kong… |
| 22 | Travers Smith | 37.6 | International | 500–1,000 | London, Paris |
| 23 | Lewis Silkin | 37.3 | International | 500–1,000 | London, Belfast, Cardiff… |
| 24 | Pearl Cohen | 34.5 | International | 100–250 | Tel Aviv, New York, Boston… |
Index measures public footprint and momentum, not quality or prestige. Methodology. Spot an error? Tell us.
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Technology, Data & Privacy rankings in other markets (38)
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