diff --git a/lansweeper/aws/integration-lambda/lansweeper_integration.js b/lansweeper/aws/integration-lambda/lansweeper_integration.js
index e8978c8..1e8b8d1 100644
--- a/lansweeper/aws/integration-lambda/lansweeper_integration.js
+++ b/lansweeper/aws/integration-lambda/lansweeper_integration.js
@@ -70,21 +70,17 @@ class LansweeperIntegration {
             if (selectedInstallations.length > 1) {
               console.log('Will process the following installations: %j', selectedInstallations.map(i => i.name));
             }
-            for (const installation of selectedInstallations) {
-              const installationResult = await this.processSite(siteId,
-                                                                networkedAssetsOnly,
-                                                                generateLabels,
-                                                                installation,
-                                                                installationNames,
-                                                                assetTypes);
-              result.uploadCounts[siteName] = result.uploadCounts[siteName] || {};
-              result.uploadCounts[siteName][installation.name] = installationResult.uploadCount;
-              if (installationResult.errors) {
-                result.errorCounts[siteName] = result.errorCounts[siteName] || {};
-                result.errorCounts[siteName][installation.name] = installationResult.errors.length;
-                result.errors[siteName] = result.errors[siteName] || {};
-                result.errors[siteName][installation.name] = installationResult.errors;
-              }
+            const resultDownloadFunctions =
+              await this.enqueueMutationsForInstallations(selectedInstallations,
+                                                          siteId,
+                                                          networkedAssetsOnly,
+                                                          generateLabels,
+                                                          installationNames,
+                                                          assetTypes);
+            if (resultDownloadFunctions.size > 0) {
+              console.log('Assets from all installations uploaded');
+              await this.downloadAndReduceSiteResults(resultDownloadFunctions, result, siteName);
+              console.log('All results gathered');
             }
           }
         }
@@ -109,17 +105,68 @@ class LansweeperIntegration {
     return this.resultHelper.cleanupResult(result);
   }
 
+  async enqueueMutationsForInstallations(selectedInstallations, siteId, networkedAssetsOnly, generateLabels, installationNames, assetTypes) {
+    const resultDownloadFunctions = new Map();
+    for (const installation of selectedInstallations) {
+      const resultDownloadFunction =
+        await this.enqueueMutationsForInstallation(siteId,
+                                                   networkedAssetsOnly,
+                                                   generateLabels,
+                                                   installation,
+                                                   installationNames,
+                                                   assetTypes);
+      resultDownloadFunctions.set(installation, resultDownloadFunction);
+    }
+    return resultDownloadFunctions;
+  }
+
+  async downloadAndReduceSiteResults(resultDownloadFunctions, result, siteName) {
+    const downloadCalls =
+      Array.from(resultDownloadFunctions,
+                 async ([installation, resultDownloadFunction]) => {
+                   const installationResult = await resultDownloadFunction.call();
+                   return await this.mergeInstallationResult(result, siteName, installation, installationResult);
+                 });
+    console.log('Waiting for all asyncQuery results to become available');
+    await Promise.all(downloadCalls);
+  }
+
+  async mergeInstallationResult(result, siteName, installation, installationResult) {
+    result.uploadCounts[siteName] = result.uploadCounts[siteName] || {};
+    result.uploadCounts[siteName][installation.name] = installationResult.uploadCount;
+    if (installationResult.errors) {
+      result.errorCounts[siteName] = result.errorCounts[siteName] || {};
+      result.errorCounts[siteName][installation.name] = installationResult.errors.length;
+      result.errors[siteName] = result.errors[siteName] || {};
+      result.errors[siteName][installation.name] = installationResult.errors;
+    }
+  }
+
   async processSite(siteId, networkedAssetsOnly, generateLabels, installation, installationNames, assetTypes) {
+    const resultDownloadFunction = await this.enqueueMutationsForInstallation(siteId, networkedAssetsOnly, generateLabels, installation, installationNames, assetTypes);
+    return await resultDownloadFunction.call();
+  }
+
+  async enqueueMutationsForInstallation(siteId, networkedAssetsOnly, generateLabels, installation, installationNames, assetTypes) {
     const siteName = await this.lansweeperClient.getSiteName(siteId);
     const installationName = installation.name;
     console.log(`processing site ${siteName}, installation ${installationName}. NetworkedAssetsOnly: ${networkedAssetsOnly}.${generateLabels ? ' Using asset name as label.' : ''}`);
-    const itemsHandler = async items => await this.sendAssetsTo4me(items, networkedAssetsOnly, generateLabels, installationName, installationNames);
-    const sendResults = await this.lansweeperClient.getAssetsPaged(siteId, this.assetSeenCutOffDate(), itemsHandler, networkedAssetsOnly, installation.id, assetTypes);
-    const jsonResults = await this.downloadResults(sendResults.map(r => r.mutationResult));
-    const overallResult = this.reduceResults(sendResults, jsonResults);
-    console.log(`processed site ${siteName}, installation ${installationName}. Upload count: ${overallResult.uploadCount}, error count: ${overallResult.errors ? overallResult.errors.length : 0}`);
+    const sendResults = await this.startInstallationSync(siteId, networkedAssetsOnly, generateLabels, installation, installationName, installationNames, assetTypes);
+    console.log(`Uploaded all assets for site ${siteName}, installation ${installationName}.`);
+
+    // function to download all results for this installation and merge to single result
+    return async () => {
+      const jsonResults = await this.downloadResults(installationName, sendResults.map(r => r.mutationResult));
+      const overallResult = this.reduceResults(sendResults, jsonResults);
+      console.log(`processed site ${siteName}, installation ${installationName}. Upload count: ${overallResult.uploadCount}, error count: ${overallResult.errors ? overallResult.errors.length : 0}`);
 
-    return overallResult;
+      return overallResult;
+    };
+  }
+
+  async startInstallationSync(siteId, networkedAssetsOnly, generateLabels, installation, installationName, installationNames, assetTypes) {
+    const itemsHandler = async items => await this.sendAssetsTo4me(items, networkedAssetsOnly, generateLabels, installationName, installationNames);
+    return await this.lansweeperClient.getAssetsPaged(siteId, this.assetSeenCutOffDate(), itemsHandler, networkedAssetsOnly, installation.id, assetTypes);
   }
 
   async sendAssetsTo4me(assets, networkedAssetsOnly = false, generateLabels = false, installation = null, installations = []) {
@@ -169,12 +216,12 @@ class LansweeperIntegration {
     return new Date(new TimeHelper().getMsSinceEpoch() - LansweeperIntegration.LAST_SEEN_DAYS * 24 * 60 * 60 * 1000);
   }
 
-  async downloadResults(mutationResultsToRetrieve) {
+  async downloadResults(installationName, mutationResultsToRetrieve) {
     const jsonResults = new Map();
     if (mutationResultsToRetrieve.length === 0) {
-      console.log('No asynchronous queries results to retrieve');
+      console.log(`No asynchronous queries results to retrieve for ${installationName}`);
     } else {
-      console.log('Downloading all asynchronous query results');
+      console.log(`Downloading ${mutationResultsToRetrieve.length} asynchronous query results for ${installationName}`);
       const jsonRetrievalCalls = mutationResultsToRetrieve
         .filter(r => !!r)
         .map(async r => jsonResults.set(r, await this.downloadResult(r)));