For Sales and Marketing :

Please contact our staff on (65) 6566 9606
Or Fax to (65) 6566 9845
Email : sales@osi.com.sg

For Technical Support :

Please contact our staff on (65) 6566 9606
Email : support@osi.com.sg

For General Enquiries :

Please contact our staff on ((65) 6566 9606
Email : enquiries@osi.com.sg

Or fill up our enquiry form

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Our office hours are from 9am to 6pm Mondays to Fridays