Ohanian Co. has been involved in a wide range of Heating Ventillation & Air conditioning application:

Listed here are some completed projects:

- MEA Middle East Airlines offices (Beirut Intern. Airport).
- B.I.A. Arrival lounge Beirut International Airport).
- Tabarja Beach & Hotels (Tabarja).
- P.T.T. (Jdeideh).
- Banque Libano - Francaise (All branches in Lebanon).
- Fransa Bank (All branches in Lebanon).
- Edcom Bank (Ramlet El Beida & Chaiyah).
- National Bank of Kuwait (All branches in Lebanon).
- Mebco Bank (All branches in Lebanon).
- Middle East Hospital (Ramlet El Beida).
- Rizk Hospital (Sodeco).
- Hotel Beaurivage (Ramlet El Beida).
- Costa Brava Hotel - Resort (Khalde).
- Mediterranee Hotel (Raouche).
- GETCO - Center Guibinian (Sin El Fil).
- Pizza Inn - Franchise outlets.
- Hotel Residence De France (Dbaye).
- Commercial Center (Souk El Raouche).
- City Theater (Clemanceau).
- Project Lebanon Exhibition Center - Beirut.
- LIBANCELL - 27 Stations in Lebanon.
- Empire Circuits & Theaters (Sodeco).
- Al Majal - CIBCO (Deluxe Complex).
- Khiyam Elhana - Unesco Square.
- Sodeco Square (Sodeco).
- Mouawad tower (Sursock).
- Halba Hospital (Halba - North Lebanon).
- BO - 18, Night Club - Karantina.
- Fardos Health Club - Kafaat.
- Center Najib Hmede - Unesco.
- Beirut Coop. Supermarkets (All branches).
- Bank of Beirut (Chiyah).