diff --git a/src/main/java/org/gcube/portlets/user/accountingdashboard/server/accounting/PortalContextTreeProvider.java b/src/main/java/org/gcube/portlets/user/accountingdashboard/server/accounting/PortalContextTreeProvider.java
index eb85a09..7b8666e 100644
--- a/src/main/java/org/gcube/portlets/user/accountingdashboard/server/accounting/PortalContextTreeProvider.java
+++ b/src/main/java/org/gcube/portlets/user/accountingdashboard/server/accounting/PortalContextTreeProvider.java
@@ -18,6 +18,8 @@ import org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.Detache
 import org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.Gateway;
 import org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.VO;
 import org.gcube.portlets.user.accountingdashboard.server.is.BuildInfraNode;
+import org.gcube.portlets.user.accountingdashboard.server.util.CocktailSort;
+import org.gcube.portlets.user.accountingdashboard.server.util.CocktailSort.Order;
 import org.gcube.portlets.user.accountingdashboard.shared.is.InfraNode;
 import org.gcube.portlets.user.accountingdashboard.shared.options.TreeOptions;
 import org.gcube.vomanagement.usermanagement.GroupManager;
@@ -53,9 +55,9 @@ public class PortalContextTreeProvider implements ContextTreeProvider {
 		this.accountingServiceType = accountingServiceType;
 		this.treeOptions = null;
 	}
-	
-	public void setTreeOptions(TreeOptions treeOptions){
-		this.treeOptions=treeOptions;
+
+	public void setTreeOptions(TreeOptions treeOptions) {
+		this.treeOptions = treeOptions;
 	}
 
 	static {
@@ -86,7 +88,7 @@ public class PortalContextTreeProvider implements ContextTreeProvider {
 			break;
 		case Infrastructure:
 			logger.debug("AccountingService: Infrastructure");
-			root = recreateTreeForInfrastructure(request, treeOptions);
+			root = recreateTreeForInfrastructure(request);
 			break;
 		default:
 			logger.debug("AccountingService: CurrentScope");
@@ -97,7 +99,7 @@ public class PortalContextTreeProvider implements ContextTreeProvider {
 		return root;
 	}
 
-	private ScopeDescriptor recreateTreeForInfrastructure(HttpServletRequest request, TreeOptions treeOptions2)
+	private ScopeDescriptor recreateTreeForInfrastructure(HttpServletRequest request)
 			throws Exception, PortalException, SystemException {
 		ScopeDescriptor infra = null;
 		PortalContext portalContext = PortalContext.getConfiguration();
@@ -156,51 +158,60 @@ public class PortalContextTreeProvider implements ContextTreeProvider {
 			if (detachedREs != null && detachedREs.isEnabled()) {
 				logger.debug("DetachedREs is enabled");
 				if (detachedREs.getGateways() != null && !detachedREs.getGateways().isEmpty()) {
-					for (String key : detachedREs.getGateways().keySet()) {
-						Gateway gateway = detachedREs.getGateways().get(key);
-						ScopeDescriptor getewaySD = new ScopeDescriptor(gateway.getName(), key);
-						LinkedList<ScopeDescriptor> voChildren = retrieveVOChildren(gateway);
+					ArrayList<Gateway> gatewaysList = new ArrayList<Gateway>(detachedREs.getGateways().values());
+					Collections.sort(gatewaysList);
+					for (Gateway gateway : gatewaysList) {
+						ScopeDescriptor getewaySD = new ScopeDescriptor(gateway.getName(), gateway.getScope());
+						LinkedList<ScopeDescriptor> voChildren = retrieveVOChildren(infraNode, gateway);
 						getewaySD.setChildren(voChildren);
 						infraChildren.add(getewaySD);
 					}
+					CocktailSort.sort(infraChildren,Order.DESC);
 				}
 			} else {
 				logger.debug("DetachedREs is disabled");
 			}
 		}
-
+		
 		infra.setChildren(infraChildren);
 		return infra;
 	}
 
-	private LinkedList<ScopeDescriptor> retrieveVOChildren(Gateway gateway) {
+	private LinkedList<ScopeDescriptor> retrieveVOChildren(InfraNode infraNode, Gateway gateway) {
+		LinkedList<ScopeDescriptor> vos = new LinkedList<>();
+
+		if (infraNode != null) {
+			ScopeDescriptor infraNodeScopeDescriptor = createRelativeInfraNode(infraNode, gateway.getScope());
+			vos.add(infraNodeScopeDescriptor);
+		}
 		if (gateway.getVos() != null && !gateway.getVos().isEmpty()) {
-			LinkedList<ScopeDescriptor> vos = new LinkedList<>();
-			for (String key : gateway.getVos().keySet()) {
-				VO vo = gateway.getVos().get(key);
-				ScopeDescriptor voSD = new ScopeDescriptor(vo.getName(), key);
+			ArrayList<VO> vosList = new ArrayList<VO>(gateway.getVos().values());
+			Collections.sort(vosList);
+			for (VO vo : vosList) {
+				ScopeDescriptor voSD = new ScopeDescriptor(vo.getName(), vo.getScope());
 				LinkedList<ScopeDescriptor> voChildren = retrieveVREChildren(vo);
 				voSD.setChildren(voChildren);
 				vos.add(voSD);
 			}
-			return vos;
-		} else {
-			return null;
 		}
+
+		return vos;
 	}
 
 	private LinkedList<ScopeDescriptor> retrieveVREChildren(VO vo) {
+		LinkedList<ScopeDescriptor> vres = new LinkedList<>();
+
 		if (vo.getVres() != null && !vo.getVres().isEmpty()) {
-			LinkedList<ScopeDescriptor> vres = new LinkedList<>();
-			for (String key : vo.getVres().keySet()) {
-				org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.VRE vre = vo.getVres().get(key);
-				ScopeDescriptor vreSD = new ScopeDescriptor(vre.getName(), key);
+			ArrayList<org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.VRE> vresList = new ArrayList<org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.VRE>(
+					vo.getVres().values());
+			Collections.sort(vresList);
+			for (org.gcube.infrastructure.detachedres.detachedreslibrary.shared.re.VRE vre : vresList) {
+				ScopeDescriptor vreSD = new ScopeDescriptor(vre.getName(), vre.getScope());
 				vres.add(vreSD);
 			}
-			return vres;
-		} else {
-			return null;
+
 		}
+		return vres;
 	}
 
 	private ScopeDescriptor createRelativeInfraNode(InfraNode infraNode, String scope) {
diff --git a/src/main/java/org/gcube/portlets/user/accountingdashboard/server/util/CocktailSort.java b/src/main/java/org/gcube/portlets/user/accountingdashboard/server/util/CocktailSort.java
new file mode 100644
index 0000000..b8435e2
--- /dev/null
+++ b/src/main/java/org/gcube/portlets/user/accountingdashboard/server/util/CocktailSort.java
@@ -0,0 +1,71 @@
+package org.gcube.portlets.user.accountingdashboard.server.util;
+
+import java.util.List;
+
+import org.gcube.accounting.accounting.summary.access.model.ScopeDescriptor;
+
+public class CocktailSort {
+
+	public enum Order {
+		ASC, DESC
+	}
+
+	public static void sort(List<ScopeDescriptor> list, Order order) {
+		if (list != null && list.size() > 1) {
+
+			// `begin` ed `end` first and last index to check
+			int begin = -1;
+			int end = list.size() - 1;
+			boolean swapped;
+			do {
+				swapped = false;
+				// increases `begin` because the elements before `begin` are
+				// sorted correctly
+				begin = begin + 1;
+				for (int i = begin; i < end; i++) {
+					if (order == Order.ASC) {
+						if (list.get(i).getName().compareTo(list.get(i + 1).getName()) < 0) {
+							ScopeDescriptor sd = list.get(i);
+							list.set(i, list.get(i + 1));
+							list.set(i + 1, sd);
+							swapped = true;
+						}
+					} else {
+						if (list.get(i).getName().compareTo(list.get(i + 1).getName()) > 0) {
+							ScopeDescriptor sd = list.get(i);
+							list.set(i, list.get(i + 1));
+							list.set(i + 1, sd);
+							swapped = true;
+						}
+					}
+
+				}
+				if (swapped == false) {
+					break;
+				}
+				swapped = false;
+				// decreases `end` because the elements after `end` are sorted
+				// correctly
+				end = end - 1;
+				for (int i = end; i > begin; i--) {
+					if (order == Order.ASC) {
+						if (list.get(i).getName().compareTo(list.get(i - 1).getName()) > 0) {
+							ScopeDescriptor sd = list.get(i);
+							list.set(i, list.get(i - 1));
+							list.set(i - 1, sd);
+							swapped = true;
+						}
+					} else {
+						if (list.get(i).getName().compareTo(list.get(i - 1).getName()) < 0) {
+							ScopeDescriptor sd = list.get(i);
+							list.set(i, list.get(i - 1));
+							list.set(i - 1, sd);
+							swapped = true;
+						}
+					}
+				}
+			} while (swapped);
+		}
+	}
+
+}