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, Membership, Events and Sales Management application suite 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

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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




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Did you miss #freetrainingfriday last week? dont panic the recording is up on the Knowledge Base #fr 4 days ago . Reply . Retweet . Favorite
Just completed another great Free Training webinar session to our customers on Membership #freetrain 9 days ago . Reply . Retweet . Favorite
The recording of our first Free Training Friday session is now available via the Knowledge Base #fre 16 days ago . Reply . Retweet . Favorite
"5 Stars, a well delivered and informative session" that's what our customer thought of Free Trainin 17 days ago . Reply . Retweet . Favorite
We have been overwhelmed by success of our First Free Training Friday webinar that took place last # 17 days ago . Reply . Retweet . Favorite