Opus Law offers you Global Expertise with Local Insights
At Opus Law, we blend international legal knowledge with local understanding to provide premium legal services tailored to your needs in Thailand.
Welcome to Opus Law, your premier legal partner in Thailand. Opus is a network of legal professionals extending our expertise with key strategic alliances throughout Asia Pacific, Europe, the UK and the Middle East. At Opus Law International, we pride ourselves on being more than just a law firm; we are a dedicated ally in navigating the intricate pathways of Thai legal and business landscapes.
Opus Law was founded by our Senior Partner Philip Sweeney in the United Kingdom in 2002 and remained a partner until his departure from the UK. Philip moved to Thailand in 2014 where he established the 1st Opus Law Thailand office in Bangkok and has been expanding its international presence since. He later opened the Chiang Mai branch in 2022, continuing its strategic expansion across Asia, Opus Law further extended its footprint with its affiliation with Baqian Law Kunming in 2025.
With a strategic focus on blending Thai and British legal expertise, our firm is uniquely positioned to offer insightful, tailor-made solutions that meet the specific needs of our clients. Our team is committed to excellence, employing a meticulous approach to each case to ensure that we not only meet but exceed your expectations.
Our Network
Bangkok
Opus Law Bangkok Co.Ltd
Tower 4, 195, 28th floor One Bangkok Entrance 3, Witthayu Rd, Lumphini, Pathum Wan, Bangkok 10330
Hours
Monday - Friday
9am - 6pm
Contacts
+66 (0) 8181 29872
info@opus-legal.com
Chiang Mai
Opus International (Thailand) Company Limited
D-Tower 1st Floor, 250 Mahidol Road, Muang Chiang Mai District, Chiang Mai 50100
Hours
Monday - Friday
9am - 6pm
Contacts
+66 (0) 9259 13366
info@opus.co.th
Kunming, China
Yunnan Baqian Law Firm
No. 5 Building, Morgan Capital Center, No. 914 Dianchi Road, Kunming, China
Hours
Monday - Friday
9am - 6pm
Contacts
+86 (0) 1309 995 6198
fuhx@baqianlaw.com
By Appointment only
Frequently Asked Questions
What services do you offer?
We provide comprehensive legal services tailored to meet client needs in various sectors.
How can I contact you?
You can reach us via our website, or connect with us on Line, LinkedIn, and Facebook.
Where is your firm located?
Opus Law is a network provider with affiliates in Thailand and China, Opus Law Bangkok co.ltd services clients in Bangkok whilst Opus International (Thailand) Company Limited services clients in Chiang Mai. Yunnan Baqian law operates as a Chinese affiliate of Opus Law Thailand
Opus Law collectively welcomes clients through the whole of Thailand.
Who are the lawyers?
Our team consists of experienced legal professionals with diverse backgrounds from the UK, China and Thailand.
Do you offer consultations?
Yes, we provide initial consultations to discuss your legal needs and options.
Site Map
CONTACT us;
info@opus-legal.com
Tel: +66 (0)85 331 9559 (Eng/Thai)
© 2026. All rights reserved by Opus Law.
Opus Law operates as a group of affiliated legal firms across Thailand. Bangkok services are provided by Opus Law Bangkok Co., Ltd. Chiang Mai services are provided by Opus International (Thailand) Co., Ltd
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Opus Law Chiang Mai
D-Tower, 250 Mahidol Rd Amphoe Mueang Chiang Mai, Pa Daet Sub-district, Chiang Mai, 50100
Opus Law Bangkok,
Tower 4, 28th Floor One Bangkok, Wireless Road, Bangkok, 10330
Baqian Law, Kunming
No 5 Building Morgan Capital Center
No 914 Dianchi Road, Kunming, China
info@opus.co.th
Tel: +66 (0) 65 726 2533 (Thai)
fuhx@baqianlaw.com
Tel: +86 1309 995 6198 (Eng/Mandarin)
Tel: +66 (0) 92 591 3366 (Eng)