Companies Headquartered in London
17 profiled companies are headquartered in London. The largest by latest full-year revenue is Shell plc, at about $266.9 billion for 2025, followed by BP plc at about $189.3 billion for 2025.
The largest industry clusters are Artificial Intelligence (2) and Digital Banking (2); in all, the companies report 15 different industries.
Founding dates run from 1690 (Barclays PLC) to 2022 (ElevenLabs), so the list covers 332 years of companies that chose London as their base.
Every figure above comes from the company profiles linked below, where each revenue number carries its fiscal year and source. Run-rates are never used as annual revenue, and revenue reported in other currencies is converted to US dollars at approximate 2025 average rates, so treat the comparison as an order of scale rather than an exact gap.
Barclays company profile updated for FY2025: $37.9B revenue, 94,700 employees, CEO C.S. Venkatakrishnan, competitors, strategy, and official sources.
BP company profile with FY2025 revenue, CEO Meg O'Neill, employees, sources, history, business model, and competitors.
Deloitte reported $74.5B FY2026 revenue (up 3.8% in local currency). Global CEO Joe Ucuzoglu, 470,000+ people, partner ownership, service lines and rivals.
Diageo FY2026 net sales of $19.6B, CEO Sir Dave Lewis's turnaround, brands like Johnnie Walker and Guinness, ownership, competitors and history.
ElevenLabs profile: voice AI founded 2022 by Mati Staniszewski and Piotr Dabkowski, $500M+ ARR, $22B valuation (Sept 2026), products, owners and rivals.
Google DeepMind profile: Alphabet-owned AI lab behind Gemini and AlphaFold, the 2026 handover from Demis Hassabis to Koray Kavukcuoglu, UK revenue and rivals.
GSK profile: £32.7B 2025 sales, H1 2026 results, CEO Luke Miels, how GSK makes money (HIV, Shingrix, Trelegy), the $10.6B Nuvalent deal and rivals Pfizer
HSBC company profile covering history, FY2025 revenue, founder Thomas Sutherland, CEO Georges Elhedery, global banking, and strategy.
Klarna (NYSE: KLAR) profile: $3.5B FY2025 revenue, $127.9B GMV, Q2 2026 net profit of $9M, 120M active consumers, CEO Sebastian Siemiatkowski, owners and
Lloyds Banking Group: 2025 and H1 2026 results, CEO Charlie Nunn, Halifax and Scottish Widows, motor finance provision, ownership and competitors.
Monzo profile: ~$2.24B FY2026 revenue, ~$115M pre-tax profit, 15.2M customers, ~$33.9B deposits, CEO Diana Layfield, US exit and Nubank talks.
PwC company profile covering FY2025 revenue, Global Chairman Mohamed Kande, history, business model, competitors, and strategy.
Revolut made £4.5B ($6.0B) revenue and ~$2.24B pre-tax profit in 2025. See its $115B valuation, CEO Nik Storonsky, UK bank licence, owners and rivals.
Shell company profile covering FY2025 revenue, CEO Wael Sawan, business model, competitors, and strategy.
Comprehensive deep-dive into Starling Bank covering digital banking, Anne Boden, Raman Bhatia, £300M+ profit, Engine SaaS platform, and neobank strategy.
Unilever made ~$57.1B in 2025 turnover. CEO Fernando Fernandez, H1 2026 results, the Ice Cream demerger, the McCormick foods deal, brands and rivals.
Wise Group plc profile: FY2026 net revenue of $2.50B, net income of $498.7M, Nasdaq (WSE) primary listing since May 2026, CEO Kristo Käärmann, and how Wise