·        The Hong Kong Housing Society
http://www.hkie.org.hk/eng/homepage.asp

·        The Hong Kong Institute of Architects
http://www.hkia.net/en/Home/Index.htm

·        The Hong Kong Institution of Engineers  
http://www.hkie.org.hk/eng/homepage.asp

·        The Hong Kong Institute of Surveyors
http://www.hkis.org.hk/en/

·        The Chartered Institute of Plumbing and Heating Engineering - Hong Kong Council

http://www.ciphe.org.hk/

·        Hong Kong Plumbing and Sanitary Ware Trade Association Ltd

http://hkpswta.com/news.aspx

·        Hong Kong Licensed Plumbing Professionals Association Ltd

http://hklpa.com.hk/

·        Hong Kong Water Works Professionals Association Ltd

http://hkwwpa.mysinablog.com/index.php?op=ViewArticle&articleId=34166

·        Plumbing Technology Student Association

https://sites.google.com/site/hkptsa/home

·        The Association of Registered Fire Service Installation Contractors of Hong Kong Ltd

http://www.fsica.org.hk/

·        Hong Kong Institute of Vocational Education Construction Industry Council

http://www.vtc.edu.hk/html/en/

·        Hong Kong Construction Association Ltd

http://www.hkca.com.hk/zh-hk/

·        Registered Minor Works Contractor Signatory Association Ltd.

http://www.rmcsa.com.hk/

·        Hong Kong Registered Contractors Association Company Ltd

http://www.hkrca.org/

·        Building Services Operation & Maintenance Executives Society The HK Air Conditioning & Refrigeration Association Ltd

http://www.bsomes.org.hk/