GSiA is an independent accounting firm with offices in Bangkok and Suvarnaphumi areas. Established since 2013, GSiA has been providing professional services relating Audit, Accounting, Tax, Payroll,and Business Consulting services to our clients throughout Thailand with our 50 professionals.
Our Services
With a wide array of specialized services, GSiA provides clients with the assistance you need to stay ahead of the game. This range of service solutions means our professionals can help you achieve your objectives and manage your business more efficiently and effectively. From increasing employee productivity to managing the value of your business, GSiA is ready to work with you on virtually any business challenge.
GSiA is a member of Allinial Global International with member firms in 140 countries. We are able to connect our clients and share resources and technical knowledge to provide the highest qualify solutions to your business needs.
At GSiA, we provide business advice with a more flexible approach that connects you to a world-class community and the best possible solutions for your complex needs.
Only business owners and their advisors can intimately understand the unique day-to-day operations and challenges of specific sectors or industries. GSiA possess that in-depth knowledge and experience in a multitude of industries, both domestic and global.
GSiA is not only accounting and tax professionals, but business consultants who understand both your business needs and your industry or trade. We focus on the business practices within your industry that can help you build a better company, and ultimately, a better future.
We provide specialized services to specific sectors or industries, serving clients by being knowledgeable in an industry or a sector. We understand more about your business so we can be not just your accountant, but your trusted advisor.
GSiA serves a broad array of industries/sectors, including:
Agribusiness
Construction
Dealerships
Dental Services
Family Business Consulting
Financial Institutions
Governmental/Public Sector
Healthcare
High Tech/Biotech
Hospitality
Insurance
International Business Development
Manufacturing & Distribution
Not-for-Profit
Oil & Gas / Natural Resources
Public Companies
Real Estate Development
Sports and Entertainment
Service
Trading
Wealth Management
Testimonials
Andrew Suett
Founder & CEO ( Nature's Ingredients Asia Co., Ltd. Thailand )
"GSiA have performed beyond expectation, providing excellent accounting services and in a timely fashion.
Their expert taxation advice on international exports has been key to our companies success and rapid growth.
They are fully capable of providing all communications in English and Thai whilst retaining the very approachable and professional client focused culture"
James Vessey
Managing Director
( Criterion Asia Recruitment (Thailand) Co., Ltd. )
" GSiA came and helped our company when we were looking for an accounting firm which was willing and able to go above and beyond just preparing reports and paying bills.
The team at GSiA has adopted a hands-on, consultative approach to working with us at Criterion, and has taken time to understand our business to act as a real business partner."
Björn Nylén
Managing Director ( Maxxi Group of Companies )
"Great in communication and they are interested and concerned to get things right.
We feel trust and believe in them"
Hiral Shah
Finance Manager ( Metro Global Services Co., Ltd. (Thailand) )
"Dear Gawinpob & GSiA Team,
You and your entire team are very supportive with good co-ordination in work, especially foreign company for Audit and Taxation related work. I feel good to working with all of you and happy with your services, and hope that we will be working together in future also".
