About o-a-sys

Helping you find the right software solution for your business.

Operational Accounting Systems (o-a-sys) provide customers with integrated business systems and ecommerce solutions. Through our accredited experts we support, train and manage the software for all business needs. 

To ensure you get the right solution, o-a-sys takes the time to understand your business and the processes you need to manage, creating long term relationships with customers and helping you to do the same.


Pegasus Opera 3

Pegasus Opera 3 is a complete business solution that can be fully integrated throughout your organisation, eliminating the need to run separate finance, payroll, CRM or service systems. 

Offering unbeatable inter-departmental integration and knowledge sharing, Opera 3 can give everyone in your company a unified view of the business.


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Pegasus Blog

Check out the latest blog posts from Pegasus Software. Learn more about Opera 3 and how it could help you with auto enrolment, salary sacrifice, stocktake, reporting and more. 

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o-a-sys provide a comprehensive software support service which can be tailored to your requirements. Our dedicated team will ensure your support issues are dealt with as quickly and efficiently as possible.

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Case Studies

Find out how Pegasus Opera 3 customers are benefiting from cost savings, efficiency gains, improved productivity and gained better control of their finances as a result of Pegasus Opera 3. 

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Auto Enrolment Set Up costs: Don't get caught out

Published by Pegasus Software - January 2016

The People's Pension and NOW: Pensions recently announced the introduction of set-up costs for businesses setting up pension schemes for auto enrolment. With 1.8 million businesses set to be staging from 1 January 2016, these new charges mean that there will be a lot of businesses out there paying these extra costs, something that they perhaps haven’t factored in to their pension scheme plans. Read More

Time Tracking Made Easy
Published by Pegasus Software -  November 2015

When it comes to monthly pressure points for any business, high up on the list has to be payroll. One small error and you end up with a situation which has the potential to upset a great deal of people in a very short space of time. A business’s payroll system is, however, only ever as good as its timesheet management. If you get this right, the benefits to the business are potentially huge. Read More

Pegasus Cloud - To adopt or not?
Published by o-a-sys -  July 2015

In May's blog we considered why Cloud Computing for business and accounting software was a more suitable option than that of traditional on-premise software. This month we explore the 5 biggest costs associated with failing to move your business over to the Cloud in terms of indirect costs and competitive responsiveness in today's business environment. Read More