Acer
Helpdesk - 1800 895 6299
http://acer.com.sg/support/servicecenter.asp

Asus
Helpdesk - 6720 3835
http://support.asus.com/default.aspx?SLanguage=en-us

Dopod
Helpdesk - 6473 9898
http://www.dopodasia.com/Dopod/Singapore/En/Support

D Link
Helpdesk - 6365 5038
http://www.dlink.com.sg/support/

HP
Helpdesk - 1800 272 5333
http://welcome.hp.com/country/sg/en/support.html?pageDisplay=support

Lenovo
Helpdesk - 1800 317 2888
http://www.lenovo.com/support/sg/

Microsoft
Helpdesk - 1800 820 9966
http://www.microsoft.com/singapore/

Panasonic
Helpdesk - 6272 1223
http://panasonic.com.sg/web/ccatId/4

Toshiba
Helpdesk - 6741 8181
http://www.toshiba.com.sg/

Morris r.e.
Helpdesk - 6835 7828
http://www.morrisre.com.sg/

Evolution Werks
Helpdesk - 6343 1938
http://www.e-werks.com/