The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- TangentialProperPart (1 member)
- Levy (1 member)
- HydrogenStation (0 members)
- Herstellungsprozess (0 members)
- SustainableStockPotential (0 members)
- Microscope (1 member)
- ManufacturedCoalBasedGas (3 members)
- CarbonStorage (0 members)
- Railway (0 members)
- PhaseTransition (2 members)
- Entity (2 members)
- TechnologicalStockPotential (0 members)
- NcBrSectorDivision (0 members)
- IrradianceUnit (3 members)
- RenewableEnergyShareValue (0 members)
- VehicleChargingStation (1 member)
- Bid (0 members)
- GlobalWarmingPotential (0 members)
- Role (6 members)
- NonSustainableBiofuel (0 members)
- FuelCell (1 member)
- Volt (0 members)
- TensileTest (1 member)
- PumpedWater (0 members)
- NuclearElectricHydrogen (0 members)
- OSWbe15eb9c865c5f05bb437e45c0907492 (1 member)
- DosageUnit (1 member)
- ThreeDimensionalSpatialRegion (0 members)
- MonetaryGrant (0 members)
- CubicCentimeterPerMole (0 members)
- EffortSharing (0 members)
- CompressedGasFuel (3 members)
- IndustrialGridBoundHeating (0 members)
- EnergyServiceDemandForTonKilometre (0 members)
- PascalSecond (0 members)
- KilogramMeterPerSecond (0 members)
- Microcurie (0 members)
- TensileStrength (0 members)
- WattPerSteradian (0 members)
- RotationalEnergy (0 members)
- PowerValue (1 member)
- MineralOilRefiningSector (0 members)
- HeatConductionUnit (1 member)
- Degree (0 members)
- Curtailment (0 members)
- SubEntityTest (0 members)
- BiogenicWasteFuel (2 members)
- MassFraction (0 members)
- PassengerPort (0 members)
- Nano (0 members)