A unified, international firm in Law, Tax, Audit, Accounting, and Business Advisory - delivering to one global standard and strategically expanding into every major market.
WONE Global is building a unified brand that delivers unmatched value in law, tax, accounting, risk, and compliance. With over 100 senior partners across 30+ countries already in place, we are expanding our time zone–aligned reach to serve ambitious businesses worldwide.
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VENUE
Hyatt Regency Barcelona Tower
Gran Via 144, 08907
L'Hospitalet de Llobregat, Barcelona
Operating as one unified global brand, we bring together expertise, scale, and deep cultural insight to deliver seamless, high-impact solutions - tailored for every client, in every market.
ABOUT | WHAT WE DO
WONE becomes an extension of your leadership team, bringing global perspective and precision to help you operate with confidence and resolve your most complex challenges, anywhere in the world.
From 30 Founding Partners Today - Reaching These Goals by April–May 2026
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Aiming to establish a presence in 50+ countries
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100+ senior partners
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Working across 200+ offices in 50+ countries
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1,000+ professionals
Our Services
Creative Solutions for your Toughest Business issues, Deals and Disputes.
For our Partner Firms
Compete, grow, and lead with the strength of a unified global brand.
The security and reputation of the network’s global quality review system and commitment to practice quality benefits clients – wherever they choose to do business throughout the world.
For our Clients
Global reach with local precision.
Tap into top-tier law, tax, audit, and advisory expertise in 100+ countries, delivered through one coordinated global standard.
Quality
A seal of trust you can measure.
Every WONE Global partner meets rigorous quality benchmarks, ensuring consistent excellence, security, and reliability wherever you do business.
WONE Global is shaping the future of professional services - uniting exceptional firms into one trusted global force.
From the moment you join, your firm operates under a single, respected worldwide identity - instantly recognised, trusted, and connected across every border
Download Partnership Brochure
More opportunities for partners, more benefits for clients.
Our unified global brand opens doors that individual firms cannot unlock alone - expanding reach, enhancing credibility, and creating new channels for cross-border work. Every win for our partners becomes a win for their clients.
Peter S. Johnson, BAccS, CPA, CGA
WONE GLOBAL CHAIR
Andrzej Zacharzewski
Managing Partner, Zacharzewski & Partners, POLAND
WONE’s unwavering commitment to quality
Excellence is non-negotiable. Every WONE Global firm upholds the same rigorous standards of practice, ensuring that clients experience the same trust, precision, and professionalism—no matter where in the world they engage us.