Email
For support, billing, or general questions.
Support Hours
Mon – Fri · 9:00 AM – 6:00 PM IST
Active response times within our standard business window.
Based In
Kolkata, West Bengal, India
Built for Indian structural engineering practice, IS 456:2000.
Response Time
Within 1 business day
Payment or billing glitches are prioritized — see our Refund Policy for details.
Company
OPTIBIM Engineering Suite
Made with pride in India.
We typically respond within 1 business day. Billing issues are prioritized and answered sooner.