diff --git a/docs/workflow/building/libraries/README.md b/docs/workflow/building/libraries/README.md
index 618db8bc971b0f..46a38d0ef15ed0 100644
--- a/docs/workflow/building/libraries/README.md
+++ b/docs/workflow/building/libraries/README.md
@@ -229,6 +229,27 @@ One can build in Debug or Release mode from the root by doing `./build.sh libs -
 
 One can build 32- or 64-bit binaries or for any architecture by specifying in the root `./build.sh libs -arch [value]` or in a project `/p:TargetArchitecture=[value]` after the `dotnet build` command.
 
+### Building with Analyzers and Linker
+
+By default, code analyzers and ILLink trimming are disabled during local builds and CI to improve build performance. To enable these features during a build, pass the following properties:
+
+- **Analyzers**: To run code analyzers during the build, use `/p:RunAnalyzersInBuild=true`:
+  ```bash
+  ./build.sh libs -c Release /p:RunAnalyzersInBuild=true
+  ```
+
+- **ILLink Trimming**: To run ILLink trimming during the build, use `/p:RunILLinkInBuild=true`:
+  ```bash
+  ./build.sh libs -c Release /p:RunILLinkInBuild=true
+  ```
+
+- **Both**: To enable both analyzers and trimming:
+  ```bash
+  ./build.sh libs -c Release /p:RunAnalyzersInBuild=true /p:RunILLinkInBuild=true
+  ```
+
+These features are automatically run in the global-build CI pipeline for all PRs to ensure code quality without impacting regular build times. Individual projects can still override these settings by explicitly setting `RunAnalyzers` or `ILLinkTrimAssembly` properties in their project files.
+
 ## Working in Visual Studio
 
 If you are working on Windows, and use Visual Studio, you can open individual libraries projects into it. From within Visual Studio you can then build, debug, and run tests.
diff --git a/eng/Analyzers.targets b/eng/Analyzers.targets
index 856ceb89ae9c31..be539215d5f0e0 100644
--- a/eng/Analyzers.targets
+++ b/eng/Analyzers.targets
@@ -1,4 +1,9 @@
 <Project>
+  <PropertyGroup>
+    <!-- By default, analyzers are disabled to speed up local builds and CI.
+         Set RunAnalyzersInBuild=true to enable analyzers during the build. -->
+    <RunAnalyzers Condition="'$(RunAnalyzers)' == '' and '$(RunAnalyzersInBuild)' != 'true'">false</RunAnalyzers>
+  </PropertyGroup>
   <PropertyGroup Condition="'$(UsingMicrosoftNoTargetsSdk)' == 'true' or
                             '$(UsingMicrosoftDotNetSharedFrameworkSdk)' == 'true' or
                             '$(MSBuildProjectExtension)' == '.pkgproj' or
diff --git a/eng/pipelines/global-build.yml b/eng/pipelines/global-build.yml
index f1a62719914144..5168356d53dc9b 100644
--- a/eng/pipelines/global-build.yml
+++ b/eng/pipelines/global-build.yml
@@ -118,6 +118,27 @@ extends:
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_non_mono_and_wasm.containsChange'], true),
                 eq(variables['isRollingBuild'], true))
 
+      #
+      # Build Libraries with all configurations including analyzers and linker
+      #
+      - template: /eng/pipelines/common/platform-matrix.yml
+        parameters:
+          jobTemplate: /eng/pipelines/common/global-build-job.yml
+          buildConfig: release
+          platforms:
+          - linux_x64_dev_innerloop
+          - linux_x64
+          - windows_x64
+          - osx_arm64
+          jobParameters:
+            nameSuffix: Libraries_AllConfigurations
+            buildArgs: -subset libs -restore -build -pack -c $(_BuildConfig) /p:RunAnalyzersInBuild=true /p:RunILLinkInBuild=true
+            timeoutInMinutes: 120
+            condition:
+              or(
+                eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_libraries.containsChange'], true),
+                eq(variables['isRollingBuild'], true))
+
       #
       # Build Repo SourceBuild
       #
diff --git a/src/libraries/Directory.Build.targets b/src/libraries/Directory.Build.targets
index 008038b6c9767f..a7ccae42bc729a 100644
--- a/src/libraries/Directory.Build.targets
+++ b/src/libraries/Directory.Build.targets
@@ -62,8 +62,11 @@
                                                    '$(TargetFrameworkVersion)' == 'v$(NetCoreAppCurrentVersion)' and
                                                    ('$(IsNETCoreAppRef)' == 'true' or '$(IsNETCoreAppSrc)' == 'true')">true</DisableImplicitFrameworkReferences>
     <!-- Enable trimming for any source project that's part of the shared framework.
-         Don't attempt to trim PNSE assemblies which are generated from the reference source. -->
+         Don't attempt to trim PNSE assemblies which are generated from the reference source.
+         By default, trimming is disabled to speed up local builds and CI.
+         Set RunILLinkInBuild=true to enable trimming during the build. -->
     <ILLinkTrimAssembly Condition="'$(ILLinkTrimAssembly)' == '' and
+                                   '$(RunILLinkInBuild)' == 'true' and
                                    '$(TargetFrameworkIdentifier)' == '.NETCoreApp' and
                                    '$(IsNETCoreAppSrc)' == 'true' and
                                    '$(GeneratePlatformNotSupportedAssembly)' != 'true' and