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The world is in constant change and so are Callan Computers. We recognise the need to adapt and keep up to date with new technology and develop new services for existing and potential customers.

Pegasus Opera 3

Today it is more apparent than ever that in order to keep pace with the rapid changes in the way that business is carried out, companies are increasingly reliant on Windows and Microsoft-based applications, networking, E-mail and the Internet. Pegasus Opera 3 is fast becoming the business and accounting system of choice for small to medium-sized enterprises. The reason is simple: Opera 3 delivers a real competitive edge. read more >>


AutoMaster is one of the most modern and flexible Dealer Management Systems the market has to offer. Created in close collaboration with industry professionals, AutoMaster was created to support the business processes of car dealerships and importers alike. A truly international and multi-functional appliction, AutoMaster has now gained acceptance in over 21 countries.

Sage 50 Accounts

Sage 50 is Ireland's most popular business accounting software. It is the perfect solution for businesses requiring a powerful accounting system that will accommodate their increasingly complex business requirements.

Sage 200 Suite

The Sage 200 suite of growing Business software puts you firmly in control of your growing business. Built using the latest technology the Sage 200 suite will help you automate and coordinate your whole business; from customer facing systems, such as sales and service through back office processes, including accounting and project management; to core activities such as retail/wholesale, construction and manufacturing.

The Sage 200 Suite is made up of powerful business modules, which are designed to work together to help your business run more smoothly. Many of these modules have evolved over a long period of time; for example, Sage 200 Financials and Commercials are based on Sage MMS, a tried and tested system available for some years.

Software Development

Callan Computers can create software to meet your unique requirements. Utilising cutting edge technologies such as Microsoft.NET and Microsoft SQL Server we can align your processes and business practices to add value to your organisation. Our developers can migrate or enhance your existing legacy applications and supply specific solutions not met by off-the-shelf software.