diff --git a/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Chilled Water/ChilledWaterPump.json b/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Chilled Water/ChilledWaterPump.json
new file mode 100644
index 00000000..e264155f
--- /dev/null
+++ b/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Chilled Water/ChilledWaterPump.json	
@@ -0,0 +1,15 @@
+{
+  "@id": "dtmi:com:willowinc:ChilledWaterPump;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Chilled Water Pump"
+  },
+  "extends" : [
+    "dtmi:com:willowinc:HydronicPump;1"
+  ],
+  "contents": [
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Condenser Water/CondenserWaterPump.json b/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Condenser Water/CondenserWaterPump.json
new file mode 100644
index 00000000..dcd08d58
--- /dev/null
+++ b/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Condenser Water/CondenserWaterPump.json	
@@ -0,0 +1,15 @@
+{
+  "@id": "dtmi:com:willowinc:CondenserWaterPump;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Condenser Water Pump"
+  },
+  "extends" : [
+    "dtmi:com:willowinc:HydronicPump;1"
+  ],
+  "contents": [
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Heating Hot Water/HeatingHotWaterPump.json b/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Heating Hot Water/HeatingHotWaterPump.json
new file mode 100644
index 00000000..06dc8b78
--- /dev/null
+++ b/Ontology/Willow/Asset/Equipment/HVAC/Pump/Hydronic/Heating Hot Water/HeatingHotWaterPump.json	
@@ -0,0 +1,15 @@
+{
+  "@id": "dtmi:com:willowinc:HeatingHotWaterPump;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Heating Hot Water Pump"
+  },
+  "extends" : [
+    "dtmi:com:willowinc:HydronicPump;1"
+  ],
+  "contents": [
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Asset/Equipment/Plumbing/Pump/Domestic Water/DomesticWaterBoosterPump.json b/Ontology/Willow/Asset/Equipment/Plumbing/Pump/Domestic Water/DomesticWaterBoosterPump.json
new file mode 100644
index 00000000..f16b995d
--- /dev/null
+++ b/Ontology/Willow/Asset/Equipment/Plumbing/Pump/Domestic Water/DomesticWaterBoosterPump.json	
@@ -0,0 +1,15 @@
+{
+  "@id": "dtmi:com:willowinc:DomesticWaterBoosterPump;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Domestic Water Booster Pump"
+  },
+  "extends" : [
+    "dtmi:com:willowinc:DomesticWaterPump;1"
+  ],
+  "contents": [
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}