Once® is an efficient project execution tool that connects CAD and ERP systems and eliminates duplicate work in project deliveries. The solution ensures accurate procurement documentation for the ERP system and up-to-date project documentation from design to final delivery.

This provides increased control and profitability.
Once® is developed by and for engineers and delivered as a cloud service on the Microsoft Azure platform, and it is ISO 27001 certified.



Once® enables huge cost savings for ZEG Power. The experinences we have gathered from our pilot plant are all stored in Once®. We can reuse these data when we start work on our next plant. The platform grows along with us, and we are convinced that Once® will have a central role when we move from pilot to large scale hydrogen production.
Once strikes the right balance between user-friendliness and the ability to efficiently handle Antec’s needs in sales, engineering, project management, document control, and supply chain.
A key factor was the ability to modularize designs with an automated system for items and tags, enabling reuse with automatic transfer of large amounts of data and documentation to new projects.
The Once® methodology will dramatically improve our project execution, from items and tags, through BOM and P&ID, to procurement and document management. By using Once®, we now have the capability to include electrical and instrumentation as an integrated part of plant design, allowing the entire facility to be managed within a single system.
A strengthened supplier industry is one of three opportunity spaces for Norway in a green and profitable transition.
The prerequisite is extreme utilisation of digital technologies in the automating and development of services that follow product lifecycles
From SINTEF’s future report 2050. Read the whole report here
The threshold for getting started with Once® is low. The simplest way is to drag and drop project folders directly into Once®, and you’re off! Once® migrates existing engineering data such as items, tags, documents and files directly to the cloud. We offer your company a non-binding workshop based on your own project data, and close support from our experienced and competent employees who make sure that you get off to a safe and good start.
Once® streamlines your project deliveries so that your company spends less time and resources. In Once®, you have control of all details of every component. Resource use, emissions and environmental impact can all be reported directly from Once®. With full control over your purchasing process, you avoid erroneous purchases.
Once® suits every company whose customers require quality control and documentation of the systems and products delivered. Once® is developed by engineers for engineers. More than 20 years of know-how and best practices from the supplier industry are built into the solution, making it an intuitive and efficient system to use for multiple disciplines.
Once® is a safe and technologically up-to-date solution, developed and delivered on the Microsoft Azure platform. The solution is developed in close partnership with Microsoft and with support from Innovation Norway.
Once® is a subscription-based service that includes operation, security, updates and support in the server licence. The Once® full user licence gives you full access to register and update engineering data in all modules. Also included are the Once 2D AutoCAD plug-in and the Once 3D Inventor plug-in.
The Once GO licence gives every employee and all subcontractors access to search all relevant data, as well as the possibility to contribute to processes like document sign-offs and checklist processing. It is highly likely that your organisation will achieve increased profitability from the first project delivered with Once®!
The road from investment to reward is short with Once. Several of our clients have completed their Once implementation within 2–3 months.
Do you want to join the profitable transition? Get started with Once® and work more efficiently with your projects. Together, we will strengthen the future competitiveness of your company.
Contact us today to get started.
Once AS is a Norwegian software company that develops and delivers the Once software solution as a cloud service on the Microsoft Azure platform. Customers’ IP and project data are securely stored in Microsoft’s data center in Oslo, with a backup copy in the Stavanger data center.
Once is developed on a modern and future-oriented technological platform. Once AS is ISO 27001 certified.
Our headquarters are in Kristiansand, and we have a wholly-owned subsidiary in Bucharest. Once has 12 employees with extensive experience and expertise in engineering, development, project, and equipment deliveries.
Do you want more information? Please send an e-mail to info@once.no