H&CO
United Kingdom

Your strategic partner for Growth and Innovation in the Global market.  

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Local Expertise in a Global World

Our network of contact offices spans continents, bringing the expertise of H&CO professionals closer to you. Whether you're seeking financial advice, strategic consulting, or tailored solutions, our dedicated teams in various locations are here to serve you with a personalized touch.

London

1 Charterhouse Mews
London EC1M 6BB

Locations 2026-uk-55

Doing Business

Explore the UK’s business environment, regulatory framework, investment
incentives, and operational requirements. From budgeting to understanding future market concerns, we provide practical examples and guidance tailored to your industry. 

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Locations 2026-uk-57

How to
open a Business

We support every step of the formation process: choosing your entity type, registering with Companies House, handling tax registrations, establishing payroll, and meeting statutory compliance. Our team ensures a smooth, compliant, and timely setup. 

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Locations 2026-uk-56

Tax
Treaties

The United States and the United Kingdom maintain a comprehensive income tax treaty designed to prevent double taxation and provide clarity for cross-border operations. We help companies apply treaty benefits, optimize withholding taxes, and align their global tax strategy. 

Leading industries  of the country

 

Healthcare & Life Sciences

The UK’s life sciences ecosystem (including biopharma, medical-research and health-care services) continues to attract investment and plays a key role in innovation and export-oriented growth.

 

Technology & Digital Industries  

The UK tech sector is among Europe’s strongest: it hosts hundreds of unicorns, attracts substantial venture-capital investment, and leads in frontier technologies and digital infrastructure.

 

Financial Services & FinTech

The UK remains one of the world’s leading financial centers, excelling in asset management, capital markets, sustainable finance, insurance and fintech innovation.

 

Frequently Asked Questions about the UK

 

Key Contacts
 

Why H&CO?

We specialize in guiding global investors, families, and multinational businesses through the complexities of cross-border investments and business expansion. With offices in over 30 countries, we are a trusted partner for those seeking to relocate, invest, or expand their business abroad providing tax, advisory, and integrated global solutions.

  • 1,000+ multilingual professionals, providing local expertise with a global perspective.
  • Client-focused leadership with deep industry experience in global markets.
  • Forbes America’s Top 200 CPAs, 2025
  • Forbes Best in State Top CPAs, 2025
  • USA Today America’s Most Recommended Tax and Accounting Firms, 2025
  • IPA Top 100 Accounting Firms, 2025 – Ranked #66
  • IPA Fastest Growing Firms, 2025
  • SFBJ Largest Accounting Firms by Billings, 2025
  • SFBJ Largest Accounting Firms by CPAs, 2025

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