| ▼NBentley | The Bentley namespace contains types defined by the Bentley Library |
| NBeSQLite | |
| NBstdcxx | String and container templates |
| NDgnIModel | |
| ▼NDgnPlatform | The DgnPlatform namespace contains types defined by the DgnPlatform |
| NDgnHistory | Contains classes for accessing Design History within a DgnFile. The most important class is Bentley::DgnPlatform::DgnHistory::DesignHistory. See Design History |
| NSmartFeature | |
| NECN | |
| NGeoCoordinates | Namespace for the interface between Application and the CSMap geographic library |
| NHttp | |
| NIPC | |
| NMemory | |
| ▼NMstnPlatform | Namespace for classes, methods and functions of the MstnPlatform library |
| NElement | Namespace used by the Element manipulation API |
| NPointCloud | Namespace used by the Pointcloud manipulation API |
| NPrint | Namespace used by the Printing / Publishing API |
| NRelationship | |
| NTasks | |
| NTerrainModel | |
| ▼NBentleyApi | |
| NBeSQLite | Classes used to access a SQLite database |
| Ntesting |