Welcome to the 3Si Website the home of OM.Net.

If you are looking for a company that can provide you with a fully flexible, highly configurable feature rich CRM and all the services to deliver that solution in your organisation, including project management, implementation consultancy, training and software development all for a fixed price then you are in the right place. 3Si are a privately owned and privately funded company, and we specialise in providing services and solutions to the not-for-profit sector which our company owner directors have successfully been doing so since the launch of the original Open Market product suite in 1993.   Read more


Software developed and supported in the UK
Fully customisable solution
Out of the Box - speedy installation
Fixed budget project - no hidden costs
Guaranteed to fit any customer requirement
Total functionality for a low price
Flexible, configurable, modern look and feel
95% customer retention




Twitter Feed

Today we launched our new website check it out at http://t.co/fjD650C0YS we think it looks fab - wha 7 days ago . Reply . Retweet . Favorite
This week we are training our new clients @PensionerOnline ready for them to soon go live with OM. N 23 days ago . Reply . Retweet . Favorite
TAF Best Practice Awards Winners - http://t.co/gpS1ieVEiL 2 months ago . Reply . Retweet . Favorite
Congratulations to our clients @NFUtweets who won two awards at the recent TAF Best Practice Awards 2 months ago . Reply . Retweet . Favorite
NetXtra Re-Engineer Site for CABE - http://t.co/NRm3OYloSm 4 months ago . Reply . Retweet . Favorite