diff --git a/packages/device_info/device_info/CHANGELOG.md b/packages/device_info/device_info/CHANGELOG.md
index 836d56232f95..bf179e645ee1 100644
--- a/packages/device_info/device_info/CHANGELOG.md
+++ b/packages/device_info/device_info/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.5.0-nullsafety
+
+* Migrate to null safety.
+
 ## 0.4.2+9
 
 * Update android compileSdkVersion to 29.
diff --git a/packages/device_info/device_info/analysis_options.yaml b/packages/device_info/device_info/analysis_options.yaml
new file mode 100644
index 000000000000..3d64bb57fe49
--- /dev/null
+++ b/packages/device_info/device_info/analysis_options.yaml
@@ -0,0 +1,4 @@
+include: ../../../analysis_options.yaml
+analyzer:
+  enable-experiment:
+    - non-nullable
diff --git a/packages/device_info/device_info/example/integration_test/device_info_test.dart b/packages/device_info/device_info/example/integration_test/device_info_test.dart
index 2fd1d9a9a491..33b745af13f9 100644
--- a/packages/device_info/device_info/example/integration_test/device_info_test.dart
+++ b/packages/device_info/device_info/example/integration_test/device_info_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// TODO(cyanglaz): Remove once https://github.com/flutter/plugins/pull/3158 is landed.
+// @dart = 2.9
 import 'dart:io';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:device_info/device_info.dart';
diff --git a/packages/device_info/device_info/example/lib/main.dart b/packages/device_info/device_info/example/lib/main.dart
index 1c1064aa09ee..3aded93809b3 100644
--- a/packages/device_info/device_info/example/lib/main.dart
+++ b/packages/device_info/device_info/example/lib/main.dart
@@ -36,7 +36,7 @@ class _MyAppState extends State<MyApp> {
   }
 
   Future<void> initPlatformState() async {
-    Map<String, dynamic> deviceData;
+    Map<String, dynamic> deviceData = <String, dynamic>{};
 
     try {
       if (Platform.isAndroid) {
diff --git a/packages/device_info/device_info/example/pubspec.yaml b/packages/device_info/device_info/example/pubspec.yaml
index e22f6026ba69..9a9556ab5543 100644
--- a/packages/device_info/device_info/example/pubspec.yaml
+++ b/packages/device_info/device_info/example/pubspec.yaml
@@ -12,7 +12,10 @@ dev_dependencies:
     sdk: flutter
   integration_test:
     path: ../../../integration_test
-  pedantic: ^1.8.0
+  pedantic: ^1.10.0-nullsafety.1
 
 flutter:
   uses-material-design: true
+
+environment:
+  sdk: '>=2.10.0-56.0.dev <3.0.0'
diff --git a/packages/device_info/device_info/example/test_driver/integration_test.dart b/packages/device_info/device_info/example/test_driver/integration_test.dart
index 7a2c21338786..bd3dc09c190c 100644
--- a/packages/device_info/device_info/example/test_driver/integration_test.dart
+++ b/packages/device_info/device_info/example/test_driver/integration_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// TODO(cyanglaz): Remove once https://github.com/flutter/flutter/issues/59879 is fixed.
+// @dart = 2.9
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
diff --git a/packages/device_info/device_info/lib/device_info.dart b/packages/device_info/device_info/lib/device_info.dart
index f63730c4323f..bccc3d2fbfa6 100644
--- a/packages/device_info/device_info/lib/device_info.dart
+++ b/packages/device_info/device_info/lib/device_info.dart
@@ -15,7 +15,7 @@ class DeviceInfoPlugin {
   DeviceInfoPlugin();
 
   /// This information does not change from call to call. Cache it.
-  AndroidDeviceInfo _cachedAndroidDeviceInfo;
+  AndroidDeviceInfo? _cachedAndroidDeviceInfo;
 
   /// Information derived from `android.os.Build`.
   ///
@@ -25,7 +25,7 @@ class DeviceInfoPlugin {
           await DeviceInfoPlatform.instance.androidInfo();
 
   /// This information does not change from call to call. Cache it.
-  IosDeviceInfo _cachedIosDeviceInfo;
+  IosDeviceInfo? _cachedIosDeviceInfo;
 
   /// Information derived from `UIDevice`.
   ///
diff --git a/packages/device_info/device_info/pubspec.yaml b/packages/device_info/device_info/pubspec.yaml
index bf36bf6f34d9..473d079a0e4f 100644
--- a/packages/device_info/device_info/pubspec.yaml
+++ b/packages/device_info/device_info/pubspec.yaml
@@ -5,7 +5,10 @@ homepage: https://github.com/flutter/plugins/tree/master/packages/device_info
 # 0.4.y+z is compatible with 1.0.0, if you land a breaking change bump
 # the version to 2.0.0.
 # See more details: https://github.com/flutter/flutter/wiki/Package-migration-to-1.0.0
-version: 0.4.2+9
+version: 0.5.0-nullsafety
+
+# Don't publish this package until null safety is stable or the package is in the allow list.
+publish_to: none
 
 flutter:
   plugin:
@@ -19,14 +22,15 @@ flutter:
 dependencies:
   flutter:
     sdk: flutter
-  device_info_platform_interface: ^1.0.0
+  device_info_platform_interface:
+    path: ../device_info_platform_interface
 
 dev_dependencies:
-  test: ^1.3.0
+  test: ^1.10.0-nullsafety.1
   flutter_test:
     sdk: flutter
-  pedantic: ^1.8.0
+  pedantic: ^1.10.0-nullsafety.1
 
 environment:
-  sdk: ">=2.1.0<3.0.0"
+  sdk: '>=2.10.0-56.0.dev <3.0.0'
   flutter: ">=1.12.13+hotfix.5 <2.0.0"
diff --git a/packages/device_info/device_info_platform_interface/CHANGELOG.md b/packages/device_info/device_info_platform_interface/CHANGELOG.md
index 8a7eb6c46be3..f48c0a9cee21 100644
--- a/packages/device_info/device_info_platform_interface/CHANGELOG.md
+++ b/packages/device_info/device_info_platform_interface/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.1.0-nullsafety
+
+* Migrate to null safety.
+
 ## 1.0.1
 
 - Documentation typo fixed.
diff --git a/packages/device_info/device_info_platform_interface/analysis_options.yaml b/packages/device_info/device_info_platform_interface/analysis_options.yaml
new file mode 100644
index 000000000000..32ff54f2748c
--- /dev/null
+++ b/packages/device_info/device_info_platform_interface/analysis_options.yaml
@@ -0,0 +1,4 @@
+include: ../../../analysis_options.yaml
+analyzer:
+  enable-experiment:
+    - non-nullable
\ No newline at end of file
diff --git a/packages/device_info/device_info_platform_interface/lib/model/android_device_info.dart b/packages/device_info/device_info_platform_interface/lib/model/android_device_info.dart
index 5b326cc5350a..ea5839da14d3 100644
--- a/packages/device_info/device_info_platform_interface/lib/model/android_device_info.dart
+++ b/packages/device_info/device_info_platform_interface/lib/model/android_device_info.dart
@@ -8,28 +8,28 @@
 class AndroidDeviceInfo {
   /// Android device Info class.
   AndroidDeviceInfo({
-    this.version,
-    this.board,
-    this.bootloader,
-    this.brand,
-    this.device,
-    this.display,
-    this.fingerprint,
-    this.hardware,
-    this.host,
-    this.id,
-    this.manufacturer,
-    this.model,
-    this.product,
-    List<String> supported32BitAbis,
-    List<String> supported64BitAbis,
-    List<String> supportedAbis,
-    this.tags,
-    this.type,
-    this.isPhysicalDevice,
-    this.androidId,
-    List<String> systemFeatures,
-  })  : supported32BitAbis = List<String>.unmodifiable(supported32BitAbis),
+    required this.version,
+    required this.board,
+    required this.bootloader,
+    required this.brand,
+    required this.device,
+    required this.display,
+    required this.fingerprint,
+    required this.hardware,
+    required this.host,
+    required this.id,
+    required this.manufacturer,
+    required this.model,
+    required this.product,
+    required List<String> supported32BitAbis,
+    required List<String> supported64BitAbis,
+    required List<String> supportedAbis,
+    required this.tags,
+    required this.type,
+    required this.isPhysicalDevice,
+    required this.androidId,
+    required List<String> systemFeatures,
+  })   : supported32BitAbis = List<String>.unmodifiable(supported32BitAbis),
         supported64BitAbis = List<String>.unmodifiable(supported64BitAbis),
         supportedAbis = List<String>.unmodifiable(supportedAbis),
         systemFeatures = List<String>.unmodifiable(systemFeatures);
@@ -115,25 +115,25 @@ class AndroidDeviceInfo {
     return AndroidDeviceInfo(
       version: AndroidBuildVersion._fromMap(
           map['version']?.cast<String, dynamic>() ?? {}),
-      board: map['board'],
-      bootloader: map['bootloader'],
-      brand: map['brand'],
-      device: map['device'],
-      display: map['display'],
-      fingerprint: map['fingerprint'],
-      hardware: map['hardware'],
-      host: map['host'],
-      id: map['id'],
-      manufacturer: map['manufacturer'],
-      model: map['model'],
-      product: map['product'],
+      board: map['board'] ?? '',
+      bootloader: map['bootloader'] ?? '',
+      brand: map['brand'] ?? '',
+      device: map['device'] ?? '',
+      display: map['display'] ?? '',
+      fingerprint: map['fingerprint'] ?? '',
+      hardware: map['hardware'] ?? '',
+      host: map['host'] ?? '',
+      id: map['id'] ?? '',
+      manufacturer: map['manufacturer'] ?? '',
+      model: map['model'] ?? '',
+      product: map['product'] ?? '',
       supported32BitAbis: _fromList(map['supported32BitAbis'] ?? []),
       supported64BitAbis: _fromList(map['supported64BitAbis'] ?? []),
       supportedAbis: _fromList(map['supportedAbis'] ?? []),
-      tags: map['tags'],
-      type: map['type'],
-      isPhysicalDevice: map['isPhysicalDevice'],
-      androidId: map['androidId'],
+      tags: map['tags'] ?? '',
+      type: map['type'] ?? '',
+      isPhysicalDevice: map['isPhysicalDevice'] ?? false,
+      androidId: map['androidId'] ?? '',
       systemFeatures: _fromList(map['systemFeatures'] ?? []),
     );
   }
@@ -151,13 +151,13 @@ class AndroidDeviceInfo {
 /// See: https://developer.android.com/reference/android/os/Build.VERSION.html
 class AndroidBuildVersion {
   AndroidBuildVersion._({
-    this.baseOS,
-    this.codename,
-    this.incremental,
-    this.previewSdkInt,
-    this.release,
-    this.sdkInt,
-    this.securityPatch,
+    required this.baseOS,
+    required this.codename,
+    required this.incremental,
+    required this.previewSdkInt,
+    required this.release,
+    required this.sdkInt,
+    required this.securityPatch,
   });
 
   /// The base OS build the product is based on.
@@ -186,13 +186,13 @@ class AndroidBuildVersion {
   /// Deserializes from the map message received from [_kChannel].
   static AndroidBuildVersion _fromMap(Map<String, dynamic> map) {
     return AndroidBuildVersion._(
-      baseOS: map['baseOS'],
-      codename: map['codename'],
-      incremental: map['incremental'],
-      previewSdkInt: map['previewSdkInt'],
-      release: map['release'],
-      sdkInt: map['sdkInt'],
-      securityPatch: map['securityPatch'],
+      baseOS: map['baseOS'] ?? '',
+      codename: map['codename'] ?? '',
+      incremental: map['incremental'] ?? '',
+      previewSdkInt: map['previewSdkInt'] ?? 0,
+      release: map['release'] ?? '',
+      sdkInt: map['sdkInt'] ?? 0,
+      securityPatch: map['securityPatch'] ?? '',
     );
   }
 }
diff --git a/packages/device_info/device_info_platform_interface/lib/model/ios_device_info.dart b/packages/device_info/device_info_platform_interface/lib/model/ios_device_info.dart
index d41202492101..f909fadd20ae 100644
--- a/packages/device_info/device_info_platform_interface/lib/model/ios_device_info.dart
+++ b/packages/device_info/device_info_platform_interface/lib/model/ios_device_info.dart
@@ -8,14 +8,14 @@
 class IosDeviceInfo {
   /// IOS device info class.
   IosDeviceInfo({
-    this.name,
-    this.systemName,
-    this.systemVersion,
-    this.model,
-    this.localizedModel,
-    this.identifierForVendor,
-    this.isPhysicalDevice,
-    this.utsname,
+    required this.name,
+    required this.systemName,
+    required this.systemVersion,
+    required this.model,
+    required this.localizedModel,
+    required this.identifierForVendor,
+    required this.isPhysicalDevice,
+    required this.utsname,
   });
 
   /// Device name.
@@ -45,12 +45,12 @@ class IosDeviceInfo {
   /// Deserializes from the map message received from [_kChannel].
   static IosDeviceInfo fromMap(Map<String, dynamic> map) {
     return IosDeviceInfo(
-      name: map['name'],
-      systemName: map['systemName'],
-      systemVersion: map['systemVersion'],
-      model: map['model'],
-      localizedModel: map['localizedModel'],
-      identifierForVendor: map['identifierForVendor'],
+      name: map['name'] ?? '',
+      systemName: map['systemName'] ?? '',
+      systemVersion: map['systemVersion'] ?? '',
+      model: map['model'] ?? '',
+      localizedModel: map['localizedModel'] ?? '',
+      identifierForVendor: map['identifierForVendor'] ?? '',
       isPhysicalDevice: map['isPhysicalDevice'] == 'true',
       utsname:
           IosUtsname._fromMap(map['utsname']?.cast<String, dynamic>() ?? {}),
@@ -62,11 +62,11 @@ class IosDeviceInfo {
 /// See http://pubs.opengroup.org/onlinepubs/7908799/xsh/sysutsname.h.html for details.
 class IosUtsname {
   IosUtsname._({
-    this.sysname,
-    this.nodename,
-    this.release,
-    this.version,
-    this.machine,
+    required this.sysname,
+    required this.nodename,
+    required this.release,
+    required this.version,
+    required this.machine,
   });
 
   /// Operating system name.
@@ -87,11 +87,11 @@ class IosUtsname {
   /// Deserializes from the map message received from [_kChannel].
   static IosUtsname _fromMap(Map<String, dynamic> map) {
     return IosUtsname._(
-      sysname: map['sysname'],
-      nodename: map['nodename'],
-      release: map['release'],
-      version: map['version'],
-      machine: map['machine'],
+      sysname: map['sysname'] ?? '',
+      nodename: map['nodename'] ?? '',
+      release: map['release'] ?? '',
+      version: map['version'] ?? '',
+      machine: map['machine'] ?? '',
     );
   }
 }
diff --git a/packages/device_info/device_info_platform_interface/pubspec.yaml b/packages/device_info/device_info_platform_interface/pubspec.yaml
index 656e5b24c373..54ab561c87ec 100644
--- a/packages/device_info/device_info_platform_interface/pubspec.yaml
+++ b/packages/device_info/device_info_platform_interface/pubspec.yaml
@@ -3,20 +3,24 @@ description: A common platform interface for the device_info plugin.
 homepage: https://github.com/flutter/plugins/tree/master/packages/device_info
 # NOTE: We strongly prefer non-breaking changes, even at the expense of a
 # less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
-version: 1.0.1
+version: 1.1.0-nullsafety
+
+# Don't publish this package until null safety is stable or the package is in the allow list.
+publish_to: none
 
 dependencies:
   flutter:
     sdk: flutter
-  meta: ^1.1.8
-  plugin_platform_interface: ^1.0.2
+  meta: ^1.3.0-nullsafety.3
+  plugin_platform_interface:
+    path: ../../plugin_platform_interface
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  mockito: ^4.1.1
-  pedantic: ^1.8.0
+  test: ^1.10.0-nullsafety.1
+  pedantic: ^1.10.0-nullsafety.1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.10.0-56.0.dev <3.0.0'
   flutter: ">=1.9.1+hotfix.4 <2.0.0"
diff --git a/packages/device_info/device_info_platform_interface/test/method_channel_device_info_test.dart b/packages/device_info/device_info_platform_interface/test/method_channel_device_info_test.dart
index 1da52e2cf39f..dfc833da7e79 100644
--- a/packages/device_info/device_info_platform_interface/test/method_channel_device_info_test.dart
+++ b/packages/device_info/device_info_platform_interface/test/method_channel_device_info_test.dart
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// TODO(cyanglaz): Remove once https://github.com/flutter/flutter/issues/59879 is fixed.
+// @dart = 2.9
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 
diff --git a/script/incremental_build.sh b/script/incremental_build.sh
index acbc61177940..3690b569bec0 100755
--- a/script/incremental_build.sh
+++ b/script/incremental_build.sh
@@ -27,6 +27,8 @@ CUSTOM_ANALYSIS_PLUGINS=(
   "video_player/video_player_web"
   "google_maps_flutter/google_maps_flutter_web"
   "url_launcher/url_launcher_platform_interface"
+  "device_info/device_info_platform_interface"
+  "device_info/device_info"
 )
 # Comma-separated string of the list above
 readonly CUSTOM_FLAG=$(IFS=, ; echo "${CUSTOM_ANALYSIS_PLUGINS[*]}")