About International Surveyor Alliance
Bridging Precision with Trust Across Borders
International Surveyor Alliance (HKISA) is a judiciary recognized building consultancy headquartered in Hong Kong, with strategic partnerships across the Greater Bay Area and key global markets. Founded by a team of RICS/HKIS-certified professionals, we specialize in forensic building diagnostics, cross-border compliance certifications, and dispute resolution support for governments, corporations, and private clients.
Our Heritage
Formed in 2014 through the merger of Hong Kong’s top building surveyors and international arbitration specialists, HKISA combines 30+ years of local case law knowledge with cutting-edge forensic technologies like thermal laser scanning and AI-assisted defect analysis.
VISION
To be a leader in standards and conformity services that is internationally recognised, so as to help improve our livelihood and society
MISSION
To establish standards, to promote sustainable development and management concepts in accordance with the applicable management system standards, to assist commerce and industry to implement relevant systems, and to deliver world-class trusted services.
Why ISA?
1. Court-Trusted Authority
90%+ success rate in expert witness testimony (Hong Kong High Court & Lands Tribunal)
Court-accredited forensic reports for litigation and insurance claims
2. Cross-Border Code Masters
Unique capability to reconcile:
✓ Hong Kong Buildings Ordinance
✓ Mainland China GB/T standards
✓ UK/EU/Australian construction codes
3. Future-Ready Diagnostics
3D laser scanning for millimeter-accurate defect mapping
AI-assisted building pathology analysis
Our Global-Local Advantage
World-class certification frameworks from RICS, CIOB, and CABE
Bilingual (English/Chinese) reporting for international arbitration
Global Authority
&
Expert Qualification
International Surveyor Alliance (ISA) is a premier building surveying and forensic consultancy headquartered in Hong Kong, with a network of experts serving clients across the Greater Bay Area and international markets. Our team comprises elite professionals accredited by the world's most respected institutions, including:
RICS (Royal Institution of Chartered Surveyors)
CIOB (Chartered Institute of Building)
CABE (Chartered Association of Building Engineers)
HKIS (Hong Kong Institute of Surveyors)
HKIE (The Hong Kong Institution of Engineers)
150+
15
Authority in Certification
Global Expertise
Successful Claim Rate
Judicial Success Rate (Expert Witness Cases)
"90%+ of ISA's forensic reports were upheld in Hong Kong courts (2020-2023)"
87% success rate in supporting clients' building-related insurance claims
75% of defect disputes resolved pre-trial through ISA's mediation
95+
Location Details
Our headquarters is located in Hong Kong, serving the Greater Bay Area and international markets with expert building surveying and certification services.
Headquarters
Unit 1308, 13/F, Celebrity Commercial Centre, NO. 64 Castle Peak Road, Kowloon
Hours
9 AM - 6 PM