Large American Companies That Have Offices in London: A Complete List of 22 Tech Giants and Major Firms

Large American Companies That Have Offices in London: A Complete List of 22 Tech Giants and Major Firms

By Michael Thornton

March 17, 2025 at 08:20 AM

London's Tower Bridge at dusk

London's Tower Bridge at dusk

London's reputation as a global tech hub continues to grow, with many major U.S. companies establishing significant operations in the city. Since Microsoft's pioneering move in 1982, the East London Tech City has emerged as a thriving tech community, attracting numerous American technology giants.

Here's a comprehensive overview of notable U.S. companies with London offices:

Tech Giants and Software Companies:

  • Microsoft: Established in 1982, recently announced a new AI hub focusing on Copilot platform development
  • Amazon: Operates from a 15-story building, managing e-commerce, AWS, and Amazon Studios operations
  • Uber: Houses marketing, legal, communications, and operations teams, managing Uber Eats and Uber Freight
  • Cisco Meraki: Located in Finsbury Square, provides cloud network management solutions
  • PagerDuty: Offers operational resilience and productivity platform with over 700 integrations
  • Sendbird: Develops AI-powered chat APIs for brand communications
  • Cockroach Labs: Specializes in cloud-native SQL databases
  • Snyk: Cybersecurity platform near Camden, focusing on secure code development

Healthcare and Financial Services:

  • GRAIL: Focuses on early cancer detection using advanced technology
  • Flatiron Health: Develops cancer care solutions, located at Merchant Square
  • American Express: Provides financial services, credit cards, and travel benefits
  • Trumid: Creates corporate bond trading networks
  • TransUnion: Offers credit monitoring and business solutions

Specialized Services:

  • Toast: All-in-one restaurant platform, launched in London in 2023
  • AlertMedia: Provides emergency communication solutions
  • Celonis: Business process improvement platform in Bloomsbury
  • CDW: Multi-brand IT solutions provider
  • Coro: Cybersecurity platform with R&D center
  • Navan: Corporate travel and expense management software
  • Take-Two Interactive: Video game developer and publisher
  • DraftKings: Sports betting and fantasy sports platform
  • CreatorIQ: Influencer marketing management platform

These companies contribute significantly to London's technology ecosystem while offering diverse career opportunities across various sectors.

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