Air Conditioning Contractors of America
http://www.acca.org

Air Movement and Control Association International
http://www.amca.org

Air-Conditioning and Refrigeration Institute
http://www.ari.org

Alfabetik Sırayla Tüm Kanunlar
http://www.idealhukuk.com

American Boiler Manufacturers Association
http://www.abma.com

American National Standards Institute
http://www.ansi.org

American Society of HVAC & Sanitary Engineers
http://www.ashrae.org

American Society of Mechanical Engineers
http://www.asme.org

American Society of Plumbing Engineers
http://www.aspe.org

American Society of Sanitary Engineering
http://www.asse-plumbing.org

Amerikan Water Works Association
http://www.awwa.org

Associazione Italiana Condizionamento
http://www.aicarr.it

Business News Publishing Company
http://www.bnp.com

Chartered Institution of Building Services Engineers
http://www.cibse.org

Danish Society of Heating, Ventilating and Air-Conditioning Engineers
http://www.danvak.dk

Energy Star
http://www.energystar.gov

Engineers Council of New York State
http://www.cecnys.org

Federation of European Heating and Air-Conditioning Associations
http://www.rehva.com

Gas Appliance Manufacturers Association
http://www.gamanet.org

Heating, Piping, Air-Conditioning Magazine
http://www.hpac.com

Heating, Refrigerating & Air-Conditioning Institude of Canada
http://www.hrai.ca

HVAC Excellence
http://www.hvacexcellence.org

IKZ Haus Technik Magazine
http://www.ikz.de

International Association of Fire Chiefs
http://www.iafconline.org

International Association of Plumbing and Mechanical Operations
http://www.iapmo.org

International Building Officials and Code Administrators International Inc.
http://www.bocai.org

International Code Council
http://www.inticode.org

International Fire Code Institude
http://www.ifci.org

International Institute of Ammonia Refrigeration
http://www.iiar.org

Iranian Syndicate of Heating,Refrigeration & Air Conditioning Industries
http://www.ishrai.com

İ.T.Ü.Kütüphanesi
http://www.library.itu.edu.tr

İhracatı Geliştirme Merkezi
http://www.igeme.org.tr

İnşaat Mühendisliği Veritabanı sitesi (online türkçe/ingilizce ve resimli inşaat sözlüğü vb.)
http://www.serki.com

KOSGEB
http://www.kosgeb.gov.tr

National Association of Plumbing Heating, Cooling, Contractors
http://www.naphcc.org

National Fire Protection Association
http://www.nfpa.org

Nederlandse Technische Vereniging Voor Installaties in Gebouwen
http://www.tvvl.nl

North American Heating, Refrigeration & Air-Conditioning Whole Salers Association
http://www.nhraw.org

Online Pasaport Müraacatı
http://www.iem.gov.tr/ilksayfa.htm

Refrigeration Service Engineers Society
http://www.rses.org

Schweizerischer Verein Von Warme und Klima Ingenieuren
http://www.swki.ch

Sektörel Yayıncılar Derneği
http://www.seyad.org

T.C. Başbakanlık Bilgi Sistemi
http://www.bybs.gov.tr

TC Kimlik Numarası Öğrenme
http://tckimlik.nvi.gov.tr

Türk Mühendis ve Mimar Odaları Birliği
http://www.tmmob.org.tr

Türkiye Bilimsel ve Teknik Araştırma Kurumu
http://www.tubitak.gov.tr

United States Environmental Protection Agency
http://www.epa.gov

Verein Deutscher Ingenieure (Association of German Engineers)
http://www.vdi.de

World Energy Council Türkiye Milli Komitesi
http://www.wec.ankara.edu.tr

Yapı Sektörü Portal Site
http://www.yapirehberi.net

Yapı Sektörü Portal Site
http://www.yapitr.com