Building a management suite for construction projects #2: Scaling up

Supporting a scaling SaaS with product development amids market pivot and growing demands.

Team size
11 people
Building a management suite for construction projects #2: Scaling up by zaven


Android Application Development
Azure Application Development
Azure SQL Application Development
C# Application Development
.NET Application Development
iOS Application Development
Kotlin aplication development
Node.js Application Development
React Application Development
Swift Application Development


Adapting to dynamic requirements while aligning with changing budgets mirrored common startup challenges at early stages. That meant a need for continuous team and process evolution to keep up.


After the first rollout it turned out that business model requires adjustments and commercial focus shifts towards construction companies instead of end customers.

A very distinctive factor of United Kingdom and United States markets compared to Norway is a need for RFI and Submittal tools (formal processes around documentation and information sign-offs). This built up a need for rapid development of those 2 features to preserve product sales momentum in those markets.

A modern Construction Management tool especially in Scandinavia needs to support BIM Building Information Modeling (BIM). It is a digital representation of physical and functional characteristics of a facility. This created a need to build a Fonn in-app tool to preview and interact with BIM models in 3D.

Additionally, no support for Android phones meant the new platform had to be covered as well as soon as possible.


Unlike in-house teams, software houses enable dynamic resource allocation, allowing for quick scalability. Even if budget constraints temporarily reallocate some team members, their knowledge remains within reach, expediting scaling efforts and reducing onboarding time.

We followed the open-closed principle (part of SOLID) so the codebase was open for extensions. We added an Organization wrapper around already existing Projects. This allowed bigger Customers to effectively manage their Portfolio without disrupting existing processes.

In order to present BIM models in 3D our curious and resourceful team of engineers had to carry on technical research on the IFC standard and conversion methods so it could be displayed in the web and mobile applications.


Introduction of feature toggles allowed product customization for different markets. When it turned out that US and UK markets need additional features we were able to instantly amplify development capacity and rapidly deliver MVP of the new functionality to validate both the need and solution quickly.

Thanks to the initial web and mobile MVP built on top of open source technologies, the Fonn BIM viewer got enough traction to allow us to switch to a commercial solution which made the user experience even better.

Lastly, a new Android app has been written very quickly, as API communication has already been mature due to developing the iOS version earlier.

Web App, Projects
Web App, Documents
Web App, Issure with Change Requests
Web App, Issues with Tasks
Web App, Checklists
Web App, RFI
Web App, RFI in review
Web App, Submittals
Web App, Submittal Details
Web App, Project geofencing
Web App, Tenant Dashboard
Android App, Home
Android App, Project
Android App, Issue
Android App, Change Request
Android App, Document annotations
Android App, BIM Document
Android App, Submitting worklogs
Android App, Worklog reports
Android App, Work Scopes

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No better technical solution or team could have been chosen to make this system. The choice of technology, pace of production, cost and quality is beyond anything we’ve seen earlier.

Jan Tore Grindheim (CEO of Fonn)


Fonn (Norway)

Fonn offers user-friendly project management software tailored specifically for the construction industry. The platform centralizes drawing storage, progress tracking, on-site communication, and off-site monitoring, providing a unified tool for both field and office teams. Praised for its simplicity and efficiency, Fonn streamlines collaboration, enhancing productivity, and reducing errors, and caters to a diverse clientele including Commercial GCs, Residential Builders, Developers, and Architects and Engineers.

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What happens next?

8 business hrs
Intro call
20 min.
Expert call
30–60 min.
3–5 business days