diff --git a/.github/ISSUE_TEMPLATE/convergence_epic.md b/.github/ISSUE_TEMPLATE/convergence_epic.md
index 17384af56d6b1..29ee9fb0f80c8 100644
--- a/.github/ISSUE_TEMPLATE/convergence_epic.md
+++ b/.github/ISSUE_TEMPLATE/convergence_epic.md
@@ -35,7 +35,7 @@ completed as part of converging a component. More info can be found here: https:
   - [ ] Conformance tests
   - [ ] Unit tests
   - [ ] VR tests
-  - [ ] Accessibility behavior tests 
+  - [ ] Accessibility behavior tests
 - [ ] Write README.md covering basic usage
 - [ ] Write initial MIGRATION.md guide (include v8 and v0)
 - [ ] **Deliverable:** Experimental component ready for partner use
diff --git a/apps/test-bundles/package.json b/apps/test-bundles/package.json
index 6e38b3873b52a..ee31dbb3e3266 100644
--- a/apps/test-bundles/package.json
+++ b/apps/test-bundles/package.json
@@ -12,11 +12,8 @@
   },
   "dependencies": {
     "@fluentui/eslint-plugin": "^1.0.0-beta.1",
-    "@fluentui/keyboard-key": "^0.2.13",
-    "@fluentui/react": "^8.0.0-beta.55",
-    "@fluentui/react-button": "^1.0.0-beta.32",
-    "@fluentui/react-compose": "^1.0.0-beta.13",
     "@fluentui/scripts": "^1.0.0",
+    "fs-extra": "^8.1.0",
     "parallel-webpack": "^2.6.0",
     "webpack-bundle-analyzer": "^4.4.0",
     "terser-webpack-plugin": "^5.1.1"
diff --git a/apps/test-bundles/webpack.config.js b/apps/test-bundles/webpack.config.js
index 63b886d7f8712..8c6803023c984 100644
--- a/apps/test-bundles/webpack.config.js
+++ b/apps/test-bundles/webpack.config.js
@@ -1,19 +1,29 @@
 // @ts-check
-const { createWebpackConfig, buildEntries, buildEntry } = require('./webpackUtils');
+const {
+  buildEntries,
+  buildEntry,
+  createWebpackConfig,
+  createFluentNorthstarFixtures,
+  createFluentReactFixtures,
+  createEntry,
+} = require('./webpackUtils');
 
-// Create entries for all top level imports.
-const entries = buildEntries('@fluentui/react');
-// If/when we start working in react-next again, the bundle size tests should be set up like this
-// so that only the components directly within react-next are tested.
-// buildEntries(
-//   '@fluentui/react-next',
-//   entries,
-//   false /* do not include stats for better performance. */,
-//   true /* onlyOwnComponents */,
-// );
+const package = process.env.PACKAGE;
 
-// Create entries for single top level import.
-entries['react-compose'] = buildEntry('@fluentui/react-compose');
-entries['keyboard-key'] = buildEntry('@fluentui/keyboard-key');
+let entries;
+if (package === '@fluentui/react-northstar') {
+  createFluentNorthstarFixtures();
+  entries = buildEntries('@fluentui/react-northstar');
+} else if (package === '@fluentui/react') {
+  createFluentReactFixtures();
+  createEntry('@fluentui/react-compose');
+  createEntry('@fluentui/keyboard-key');
+
+  entries = buildEntries('@fluentui/react');
+  entries['react-compose'] = buildEntry('@fluentui/react-compose');
+  entries['keyboard-key'] = buildEntry('@fluentui/keyboard-key');
+} else {
+  process.exit(1);
+}
 
 module.exports = createWebpackConfig(entries);
diff --git a/apps/test-bundles/webpackUtils.js b/apps/test-bundles/webpackUtils.js
index a1a34527c38fe..f5121ee8aee19 100644
--- a/apps/test-bundles/webpackUtils.js
+++ b/apps/test-bundles/webpackUtils.js
@@ -1,10 +1,12 @@
 // @ts-check
 const path = require('path');
-const fs = require('fs');
+const fs = require('fs-extra');
 const resources = require('@fluentui/scripts/webpack/webpack-resources');
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 const TerserPlugin = require('terser-webpack-plugin');
 
+const FIXTURE_PATH = 'temp/fixtures/';
+
 function createWebpackConfig(entries) {
   return Object.keys(entries).map(entryName => {
     let anaylizerPluginOptions = {
@@ -70,69 +72,116 @@ function createWebpackConfig(entries) {
   });
 }
 
+/**
+ * Webpack will remove any unused import as a dead code (tree shaking).
+ * Thus we are creating temporary JS files with top-level component imports
+ * and console logging them. This will ensure that the code is active
+ * and that webpack bundles it correctly.
+ */
+function createFluentNorthstarFixtures() {
+  const packageName = '@fluentui/react-northstar';
+  const distPath = path.dirname(require.resolve(packageName).replace('commonjs', 'es'));
+  const packagePath = path.resolve(distPath, 'components');
+  fs.readdirSync(packagePath).forEach(itemName => {
+    const isFolder = fs.statSync(path.join(packagePath, itemName)).isDirectory();
+
+    if (isFolder && itemName) {
+      const importStatement = `import { ${itemName} } from '${packageName}'; console.log(${itemName})`;
+      try {
+        const folderName = getFolderName(packageName);
+        const entryPath = path.join(FIXTURE_PATH, folderName, `${itemName}.js`);
+        fs.outputFileSync(entryPath, importStatement, 'utf-8');
+      } catch (err) {
+        console.log(err);
+      }
+    }
+  });
+}
+
 // Files which should not be considered top-level entries.
 const TopLevelEntryFileExclusions = ['index.js', 'version.js', 'index.bundle.js'];
 
+function createFluentReactFixtures() {
+  const packageName = '@fluentui/react';
+  const distPath = path.dirname(require.resolve(packageName).replace('lib-commonjs', 'lib'));
+  const packagePath = path.resolve(distPath);
+  fs.readdirSync(packagePath).forEach(itemName => {
+    const isFolder = fs.statSync(path.join(packagePath, itemName)).isDirectory();
+    const isAllowedFile = itemName && itemName.match(/.js$/) && !TopLevelEntryFileExclusions.includes(itemName);
+
+    if (isAllowedFile && !isFolder) {
+      const item = isFolder ? itemName : itemName.replace(/.js$/, '');
+      // import everything from package/item path
+      const importStatement = `import * as p from '${packageName}/lib/${item}'; console.log(p)`;
+      try {
+        const folderName = getFolderName(packageName);
+        const entryPath = path.join(FIXTURE_PATH, folderName, `${item}.js`);
+        fs.outputFileSync(entryPath, importStatement, 'utf-8');
+      } catch (err) {
+        console.log(err);
+      }
+    }
+  });
+}
+
+function createEntry(packageName) {
+  try {
+    // import everything from a single package
+    const importStatement = `import * as p from '${packageName}'; console.log(p)`;
+    const folderName = getFolderName(packageName);
+    const entryPath = path.join(FIXTURE_PATH, folderName, 'index.js');
+    fs.outputFileSync(entryPath, importStatement, 'utf-8');
+  } catch (err) {
+    console.log(err);
+  }
+}
+
 /**
- * Build webpack entries based on top level imports available in a package.
+ * Build webpack entries from created fixtures.
  *
  * @param {boolean} [includeStats] - Stats are generated and used by the size auditor report
  * to check more details on what caused the bundle size change. Due to stats generation being slow,
  * and therefore slowing down CI significantly, setting this to true to avoid stats generation.
  * If bundle size is changed unexpectedly, developers can drill down deeper on the problem by
  * locally running bundle tests.
- * @param {boolean} [onlyOwnComponents] - If true, only run the tests for an entry point file if it
- * has a corresponding folder under `lib/components`. This eliminates duplicate bundle size tests
- * for components which are just re-exported.
  */
-function buildEntries(packageName, entries = {}, includeStats = true, onlyOwnComponents = false) {
-  let packagePath = '';
-
-  try {
-    packagePath = path.dirname(require.resolve(packageName)).replace('lib-commonjs', 'lib');
-  } catch (e) {
-    console.log(`The package "${packageName}" could not be resolved. Add it as a dependency to this project.`);
-    console.log(e);
-    return;
-  }
+function buildEntries(packageName, entries = {}, includeStats = true) {
+  const folderName = getFolderName(packageName);
+  const packagePath = path.join(FIXTURE_PATH, folderName);
 
   fs.readdirSync(packagePath).forEach(itemName => {
-    const isAllowedFile =
-      // is JS
-      itemName.match(/.js$/) &&
-      // not excluded
-      !TopLevelEntryFileExclusions.includes(itemName) &&
-      // if requested, has component implementation within this package (not re-export)
-      (!onlyOwnComponents || fs.existsSync(path.join(packagePath, 'components', itemName.replace('.js', ''))));
-
-    if (isAllowedFile) {
-      const entryName = itemName.replace(/.js$/, '');
-
-      // Replace commonjs paths with lib paths.
-      const entryPath = path.join(packagePath, itemName);
-
-      entries[`${packageName.replace('@', '').replace('/', '-')}-${entryName}`] = {
-        entryPath,
-        includeStats,
-      };
-    }
+    const entryName = itemName.replace(/.js$/, '');
+    const entryPath = path.resolve(path.join(packagePath, itemName));
+    entries[`${packageName.replace('@', '').replace('/', '-')}-${entryName}`] = {
+      entryPath: entryPath,
+      includeStats,
+    };
   });
 
   return entries;
 }
 
 /**
- * Create entries for single top level import.
+ * Build entries for single fixture with top level import.
  */
 function buildEntry(packageName, includeStats = true) {
+  const folderName = getFolderName(packageName);
+  const entryPath = path.resolve(path.join(FIXTURE_PATH, folderName));
   return {
-    entryPath: path.join(path.dirname(require.resolve(packageName)).replace('lib-commonjs', 'lib'), 'index.js'),
+    entryPath: `${entryPath}/index.js`,
     includeStats,
   };
 }
 
+function getFolderName(packageName) {
+  return packageName.replace('@fluentui/', '');
+}
+
 module.exports = {
-  createWebpackConfig,
   buildEntries,
   buildEntry,
+  createFluentReactFixtures,
+  createFluentNorthstarFixtures,
+  createEntry,
+  createWebpackConfig,
 };
diff --git a/azure-pipelines.bundlesize.yml b/azure-pipelines.bundlesize.yml
index bb219baf387cc..092b9b92bc411 100644
--- a/azure-pipelines.bundlesize.yml
+++ b/azure-pipelines.bundlesize.yml
@@ -5,7 +5,7 @@ trigger:
   - master
 
 jobs:
-  - job: build
+  - job: build_react
     timeoutInMinutes: 75
     pool:
       vmImage: 'windows-2019'
@@ -15,11 +15,13 @@ jobs:
       - script: npx midgard-yarn install
         displayName: yarn
 
-      - script: yarn build --to test-bundles --no-cache
-        displayName: yarn build to test-bundles
+      - script: yarn build --to @fluentui/react @fluentui/react-button @fluentui/react-compose @fluentui/keyboard-key --no-cache
+        displayName: yarn build to @fluentui/react
 
       - script: yarn workspace test-bundles bundle:size
         displayName: yarn bundle test-bundles
+        env:
+          PACKAGE: '@fluentui/react'
 
       - script: yarn bundlesizecollect
         displayName: 'Collate Bundle Size Information'
@@ -27,17 +29,88 @@ jobs:
       - task: PublishBuildArtifacts@1
         displayName: 'Publish Bundle Size information to Azure Dev Ops Artifacts'
         inputs:
-          PathtoPublish: 'apps/test-bundles/dist/bundlesizes.json'
+          PathtoPublish: 'apps/test-bundles/dist/bundlesize.json'
+          ArtifactName: bundlesize-react
 
       - task: PublishBuildArtifacts@1
         displayName: 'Publish Artifact dist folder upon build for debug'
         inputs:
           PathtoPublish: 'apps/test-bundles/dist'
+          ArtifactName: distdrop-react
+
+  - job: build_northstar
+    timeoutInMinutes: 75
+    pool:
+      vmImage: 'windows-2019'
+    steps:
+      - template: .devops/templates/tools.yml
+
+      - script: npx midgard-yarn install
+        displayName: yarn
+
+      - script: yarn build --to @fluentui/react-northstar --no-cache
+        displayName: yarn build to @fluentui/react-northstar
+
+      - script: yarn workspace test-bundles bundle:size
+        displayName: yarn bundle test-bundles
+        env:
+          PACKAGE: '@fluentui/react-northstar'
+
+      - script: yarn bundlesizecollect
+        displayName: 'Collate Bundle Size Information'
+
+      - task: PublishBuildArtifacts@1
+        displayName: 'Publish Bundle Size information to Azure Dev Ops Artifacts'
+        inputs:
+          PathtoPublish: 'apps/test-bundles/dist/bundlesize.json'
+          ArtifactName: bundlesize-northstar
+
+      - task: PublishBuildArtifacts@1
+        displayName: 'Publish Artifact dist folder upon build for debug'
+        inputs:
+          PathtoPublish: 'apps/test-bundles/dist'
+          ArtifactName: distdrop-northstar
+
+  - job: merge
+    pool:
+      vmImage: 'windows-2019'
+    dependsOn:
+      - build_react
+      - build_northstar
+    steps:
+      - task: DownloadPipelineArtifact@2
+        displayName: 'Download Pipeline Artifact React'
+        inputs:
+          artifactName: 'bundlesize-react'
+          targetPath: '$(Build.ArtifactStagingDirectory)/react'
+
+      - task: DownloadPipelineArtifact@2
+        displayName: 'Download Pipeline Artifact N*'
+        inputs:
+          artifactName: 'bundlesize-northstar'
+          targetPath: '$(Build.ArtifactStagingDirectory)/react-northstar'
+
+      - script: 'chocolatey install jq'
+        displayName: 'Install jq'
+
+      - script: jq -c -s "reduce .[] as $item ({}; . * $item)" $(Build.ArtifactStagingDirectory)/react-northstar/bundlesize.json $(Build.ArtifactStagingDirectory)/react/bundlesize.json > $(Build.ArtifactStagingDirectory)/bundlesizes.json
+        displayName: 'Merge React and React-Northstar to bundlesizes.json'
+
+      - task: PublishBuildArtifacts@1
+        displayName: 'Publish Merged Bundle Size information'
+        inputs:
+          PathtoPublish: '$(Build.ArtifactStagingDirectory)/bundlesizes.json'
+
+      - task: PublishBuildArtifacts@1
+        displayName: 'Publish Artifact dist folder upon build for debug'
+        inputs:
+          PathtoPublish: '$(Build.ArtifactStagingDirectory)'
           ArtifactName: distdrop
 
   - job: lightrail
     pool: server
-    dependsOn: build
+    dependsOn:
+      - merge
     steps:
       - task: odefun.odsp-lightrail-tasks-partner.odsp-lightrail-tasks-SizeAuditorWorker.SizeAuditorWorker@0
         displayName: 'Size Auditor Check on LightRail'
diff --git a/scripts/bundle-size-collect.js b/scripts/bundle-size-collect.js
index 6da450dcd35ea..d2266082e53e2 100644
--- a/scripts/bundle-size-collect.js
+++ b/scripts/bundle-size-collect.js
@@ -10,7 +10,7 @@ const path = require('path');
 
 const distRoot = path.resolve(__dirname, '../apps/test-bundles/dist');
 const sizes = {};
-const outputFilename = 'bundlesizes.json';
+const outputFilename = 'bundlesize.json';
 
 var items = fs.readdirSync(distRoot);
 items.forEach(item => {
diff --git a/scripts/tasks/bundle-size-collect.ts b/scripts/tasks/bundle-size-collect.ts
index c0d3521e07d48..6b1ea46dbed94 100644
--- a/scripts/tasks/bundle-size-collect.ts
+++ b/scripts/tasks/bundle-size-collect.ts
@@ -11,7 +11,7 @@ export function bundleSizeCollect() {
 
   const distRoot = path.join(__dirname, '../../apps/test-bundles/dist');
   const sizes = {};
-  const outputFilename = 'bundlesizes.json';
+  const outputFilename = 'bundlesize.json';
 
   var items = fs.readdirSync(distRoot);
   items.forEach(item => {
diff --git a/sizeauditor.json b/sizeauditor.json
index e5525cd2e8aa8..db19f6ce13e84 100644
--- a/sizeauditor.json
+++ b/sizeauditor.json
@@ -1,4 +1,4 @@
 {
   "devopsDropFolderName": "drop",
-  "devopsWebpackStatsArtifactName": "bundlesizes.json"
+  "devopsAssemblyArtifactName": "drop"
 }