Union Consultant Audit Office Co., Ltd. has served Thai businesses since 1996 with audit, tax, accounting and advisory services.
Led by Ms. Manunyapath Angkunpornchai — a Certified Public Accountant, Certified Internal Auditor and Ministry of Finance–registered consultant — our team works with everyone from growing SMEs to national brands and state enterprises.
We don’t just keep your books. We help you understand your numbers, manage risk and make better decisions, so your business can grow with confidence.
Ms. Manunyapath Angkunpornchai founded Union Consultant with a simple belief: business owners deserve more than compliance — they deserve clarity. Over three decades she has audited, advised and built accounting systems for SMEs, national brands, banks and state enterprises, and trained countless finance professionals as a lecturer of The Institute of Internal Auditors of Thailand.
CPA (Thailand) · CIA · CPIA · CCSA · MoF Registered Consultant · Thammasat University
Choosing an advisor is like choosing a surgeon or a builder. The expertise is different, and so are the results.
Ms. Manunyapath Angkunpornchai
Founder & Managing Director
To add real value to every client’s business — as their accountant, auditor, internal auditor, systems consultant, management advisor and trainer, all under one roof.
We organise our practice around one idea
Every number should help you make a better decision.
Assurance with risk management — audits and internal audits that don’t just check the past, but protect your future.
Tax with business strategy — tax planning built into how you operate and grow, not added at year-end.
Consulting with experience — practical advice drawn from over 30 years across industries, from SMEs to state enterprises.
We aim to succeed by being the best at:-
A clear, partner-led process — from first conversation to ongoing support.
Every engagement starts with a meeting with our partner. We listen to your pain points, review your current systems and identify tax and control risks.
We design an accounting, tax or control solution that fits your business — drawing on our full range of services and experience.
Our team and network of specialists put the solution in place and train your staff so it works in daily operations.
We review results, follow up on feedback and keep you updated on new regulations — so your business stays on track.
We turn information into insight — so every decision you make is backed by clear, reliable numbers.
Have a question? Contact us — we’re happy to help.
