Construction company seeks construction software

We are a construction company specializing in shell and turnkey construction, earthworks, and renovation, and we are looking for construction software that meets the following requirements:

• Quotes
• Invoices
• Calculations
• Accounting
• Open item management
• Web-based (cloud, IaaS), should therefore be platform-independent, i.e., preferably a server solution provided by the software provider
• Good support from the software provider
• No low-budget software
• Solution specifically designed for construction companies, i.e., no universal solution

One software workstation is planned. We work with both MS Windows and macOS.