A Bold New Chapter: AO Accounting & Advisory Rises from Merger, Moves into New Office at Two Pacific Place

Administration Outsourcing Co., Ltd and Asia Account & Service Co., Ltd (“AA”) have completed a landmark merger to create AO Accounting & Advisory Limited (“AO”), a unified powerhouse in accounting, tax, payroll, legal and advisory services. The merger combines over two decades of collective expertise and marks a strategic leap forward in delivering innovative solutions to MNC and SME clients seeking to enter or do business in Thailand.  

The newly formed business will operate under the name “AO Accounting & Advisory Limited”, reflecting its expanded scope. Concurrently, the company will consolidate and relocate its offices to Two Pacific Place.  

By merging AO’s renowned outsourced accounting, tax and compliance expertise with AA’s leadership in Xero-based cloud accounting, AO Accounting & Advisory Limited will offer a comprehensive suite of integrated professional services. Clients will continue to benefit from AO’s deep and broad expertise, bolstered by a combined team of c 50 professionals.  

Dominik Heer, Chairman of AO, emphasized the transformative potential of the merger: “By integrating AO’s comprehensive service offering with AA’s technology prowess, we are uniquely positioned to address the complex challenges facing businesses in Thailand’s dynamic environment. Our new home at Two Pacific Place symbolize our ambition to lead with innovation and agility.”  

Alan Lonie, Executive Chairman of AO, added: “The creation of AO Accounting & Advisory Limited marks a pivotal milestone. Together, we unlock synergies that will drive growth for our clients and our people. Our relocation to Two Pacific Place underscores our commitment to investing in infrastructure and talent, ensuring we continue to deliver exceptional value in every engagement.”  

The merger integrates cutting-edge technology, sector-specific expertise, and a client-centric culture, enabling AO Accounting & Advisory Limited to provide tailored solutions for multinational corporations, SMEs, and startups alike. The new office at Two Pacific Place will serve as a collaborative space equipped with advanced digital tools, reinforcing the firm’s pledge to innovation and sustainability.  

Clients and partners are invited to connect with AO Accounting & Advisory Limited at its new office beginning 1 April 2025. For more information, visit www.ao-group.co.