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You're in good company


Architects to Surveyors to Design Engineers; we have clients from a wide range of industry sectors with user numbers ranging from 5 to many 100s.

Our clients report substantial cost and time-savings as a direct result of purchasing and using Coretime. Clients typically report a return on their investment within 3 to 6 months. You can try our ROI calculator here

Don’t just take our word for it though. Learn how our customers use Coretime to build stronger relationships with their clients, improve project visibility and improve the way they do business.
We have recently purchased Coretime through Onesys and were impressed with their responsiveness to our original enquiry and to our subsequent questions. The process for understanding what the software could do for us was efficient and straightforward, as was the administration involved in setting-up the account and finalising the agreement. Subsequently, we felt that the scoping and the training sessions were well-run and informative. Overall, we have so far been extremely satisfied with their product and their service.
Nicola Plummer
Aircraft Leasing & Management
All in all we are delighted with Coretime. We find it accurate, robust and easy to use. Our staff find it user friendly, providing them with the confidence that they require in order to use it on a day to day basis
Mary Corrigan
AJA Architects
Since purchasing Coretime our time spent on administrative tasks, especially around invoicing has greatly reduced. We can also now respond to Client queries much more efficiently and with a more accurate, trusted response
Paul Bunyan
Callisto Consulting
Coretime is responsive, quick and effective and gives us great project visibility. It has made us much more efficient in many different ways as a business
Donna Milne
Caulmert
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