diff --git a/.github/workflows/cts_ci.yml b/.github/workflows/cts_ci.yml
index c068884e6..f0d3727a0 100644
--- a/.github/workflows/cts_ci.yml
+++ b/.github/workflows/cts_ci.yml
@@ -61,6 +61,8 @@ jobs:
             version: fcd26a61b600cd4b653724e59e72d4f7d1da259c
           - sycl-impl: simsycl
             version: 960c155109b066b26c1ecb6b2348ff9f6b69704d
+          - sycl-impl: protosycl
+            version: c57f50ceb66d33376d141de45fce6b1e7826f8ac
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -121,6 +123,8 @@ jobs:
             version: fcd26a61b600cd4b653724e59e72d4f7d1da259c
           - sycl-impl: simsycl
             version: 960c155109b066b26c1ecb6b2348ff9f6b69704d
+          - sycl-impl: protosycl
+            version: c57f50ceb66d33376d141de45fce6b1e7826f8ac
     env:
       container-workspace: /__w/${{ github.event.repository.name }}/${{ github.event.repository.name }}
       parallel-build-jobs: 2
diff --git a/CMakeLists.txt b/CMakeLists.txt
index abdd9f5c0..57ce0f968 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,8 @@ project(sycl_cts LANGUAGES CXX)
 
 if(SYCL_IMPLEMENTATION STREQUAL SimSYCL)
     set(CMAKE_CXX_STANDARD 20)
+elseif(SYCL_IMPLEMENTATION STREQUAL ProtoSYCL)
+    set(CMAKE_CXX_STANDARD 23)
 else()
     set(CMAKE_CXX_STANDARD 17)
 endif()
diff --git a/ci/generate_exclude_filter.py b/ci/generate_exclude_filter.py
index 42f660d54..4a35e89bc 100755
--- a/ci/generate_exclude_filter.py
+++ b/ci/generate_exclude_filter.py
@@ -42,8 +42,8 @@ def parse_arguments():
         configuration-time test category filters for all failing targets.""")
 
     parser.add_argument('sycl_implementation', metavar="SYCL-Implementation",
-                        choices=['DPCPP', 'AdaptiveCpp', 'SimSYCL'], type=str,
-                        help="The SYCL implementation to use")
+                        choices=['DPCPP', 'AdaptiveCpp', 'SimSYCL', 'ProtoSYCL'],
+                        type=str, help="The SYCL implementation to use")
     parser.add_argument('--cmake-args', type=str,
                         help="Arguments to pass on to CMake during configuration")
     parser.add_argument('-j', type=int, default=0, dest='parallel_jobs',
diff --git a/ci/protosycl.filter b/ci/protosycl.filter
new file mode 100644
index 000000000..230e130ce
--- /dev/null
+++ b/ci/protosycl.filter
@@ -0,0 +1,4 @@
+device
+group_functions
+math_builtin_api
+property
diff --git a/cmake/AdaptProtoSYCL.cmake b/cmake/AdaptProtoSYCL.cmake
new file mode 100644
index 000000000..46dad248c
--- /dev/null
+++ b/cmake/AdaptProtoSYCL.cmake
@@ -0,0 +1,29 @@
+add_library(SYCL::SYCL INTERFACE IMPORTED GLOBAL)
+target_link_libraries(SYCL::SYCL INTERFACE ProtoSYCL)
+# add_sycl_executable_implementation function
+# Builds a SYCL program, compiling multiple SYCL test case source files into a
+# test executable, invoking a single-source/device compiler
+# Parameters are:
+#   - NAME             Name of the test executable
+#   - OBJECT_LIBRARY   Name of the object library of all the compiled test cases
+#   - TESTS            List of SYCL test case source files to be built into the
+# test executable
+function(add_sycl_executable_implementation)
+    cmake_parse_arguments(args "" "NAME;OBJECT_LIBRARY" "TESTS" ${ARGN})
+    set(exe_name            ${args_NAME})
+    set(object_lib_name     ${args_OBJECT_LIBRARY})
+    set(test_cases_list     ${args_TESTS})
+
+    add_library(${object_lib_name} OBJECT ${test_cases_list})
+    add_executable(${exe_name} $<TARGET_OBJECTS:${object_lib_name}>)
+
+    add_sycl_to_target(TARGET ${object_lib_name} SOURCES ${test_cases_list})
+
+    set_target_properties(${object_lib_name} PROPERTIES
+        INCLUDE_DIRECTORIES $<TARGET_PROPERTY:${exe_name},INCLUDE_DIRECTORIES>
+        COMPILE_DEFINITIONS $<TARGET_PROPERTY:${exe_name},COMPILE_DEFINITIONS>
+        COMPILE_OPTIONS     $<TARGET_PROPERTY:${exe_name},COMPILE_OPTIONS>
+        COMPILE_FEATURES    $<TARGET_PROPERTY:${exe_name},COMPILE_FEATURES>
+        POSITION_INDEPENDENT_CODE ON)
+
+endfunction()
diff --git a/cmake/AddSYCLExecutable.cmake b/cmake/AddSYCLExecutable.cmake
index 32fb962d2..b82b9f6ed 100644
--- a/cmake/AddSYCLExecutable.cmake
+++ b/cmake/AddSYCLExecutable.cmake
@@ -1,4 +1,4 @@
-set (KNOWN_SYCL_IMPLEMENTATIONS "DPCPP;AdaptiveCpp;SimSYCL")
+set (KNOWN_SYCL_IMPLEMENTATIONS "DPCPP;AdaptiveCpp;SimSYCL;ProtoSYCL")
 if ("${SYCL_IMPLEMENTATION}" STREQUAL "" OR NOT ${SYCL_IMPLEMENTATION} IN_LIST KNOWN_SYCL_IMPLEMENTATIONS)
     message(FATAL_ERROR
         "The SYCL CTS requires specifying a SYCL implementation with "
diff --git a/cmake/FindProtoSYCL.cmake b/cmake/FindProtoSYCL.cmake
new file mode 100644
index 000000000..0b6472e34
--- /dev/null
+++ b/cmake/FindProtoSYCL.cmake
@@ -0,0 +1,21 @@
+include(FetchContent)
+FetchContent_Declare(
+    ProtoSYCL
+    SOURCE_DIR /ProtoSYCL
+)
+FetchContent_MakeAvailable(ProtoSYCL)
+
+function(add_sycl_to_target)
+    set(options)
+    set(one_value_keywords TARGET)
+    set(multi_value_keywords SOURCES)
+    cmake_parse_arguments(ADD_SYCL
+        "${options}"
+        "${one_value_keywords}"
+        "${multi_value_keywords}"
+        ${ARGN}
+    )
+
+    target_link_libraries(${ADD_SYCL_TARGET} PUBLIC ProtoSYCL)
+
+endfunction()
diff --git a/docker/protosycl/Dockerfile b/docker/protosycl/Dockerfile
new file mode 100644
index 000000000..43f0bbb25
--- /dev/null
+++ b/docker/protosycl/Dockerfile
@@ -0,0 +1,38 @@
+FROM khronosgroup/sycl-cts-ci:common
+
+ARG IMPL_VERSION
+RUN test -n "$IMPL_VERSION" || ( echo "Error: IMPL_VERSION is not set"; exit 1 )
+
+# Install LLVM script dependencies.
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    wget \
+    gnupg \
+    lsb-release \
+    g++-14 \
+    software-properties-common && \
+    rm -rf /var/lib/apt/lists/*
+
+# Install LLVM 22.
+RUN wget https://apt.llvm.org/llvm.sh && \
+    chmod +x llvm.sh && \
+    ./llvm.sh 22 all && \
+    rm llvm.sh
+
+# Set clang-22 as the default clang version.
+RUN update-alternatives --install /usr/bin/clang clang /usr/bin/clang-22 100 && \
+    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-22 100
+ENV CC=clang
+ENV CXX=clang++
+
+# Build ProtoSYCL.
+RUN git clone https://github.com/0x12CC/ProtoSYCL.git && \
+    cd ProtoSYCL && \
+    git checkout $IMPL_VERSION && \
+    mkdir build && \
+    cd build && \
+    cmake .. -DCMAKE_BUILD_TYPE=Release -G Ninja && \
+    ninja
+
+# Copy the configure script to the /scripts directory.
+COPY configure.sh /scripts/
diff --git a/docker/protosycl/configure.sh b/docker/protosycl/configure.sh
new file mode 100644
index 000000000..352a8439f
--- /dev/null
+++ b/docker/protosycl/configure.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -o errexit -o pipefail -o noclobber -o nounset
+cmake . -G Ninja -B build \
+    -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+    -DCMAKE_CXX_COMPILER=/ProtoSYCL/build/sycl++ \
+    -DCMAKE_CXX_STANDARD=23 \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DSYCL_IMPLEMENTATION=ProtoSYCL \
+    -DSYCL_CTS_ENABLE_FULL_CONFORMANCE=OFF \
+    -DSYCL_CTS_ENABLE_OPENCL_INTEROP_TESTS=OFF \
+    -DSYCL_CTS_ENABLE_CUDA_INTEROP_TESTS=OFF \
+    -DSYCL_CTS_ENABLE_HALF_TESTS=ON \
+    -DSYCL_CTS_ENABLE_DEPRECATED_FEATURES_TESTS=ON \
+    -DSYCL_CTS_ENABLE_FEATURE_SET_FULL=ON \
+    $@