diff --git a/src/core/lib/event_engine/posix_engine/.clang-format b/src/core/lib/event_engine/posix_engine/.clang-format
index 64387e9e515..5f150ef6edb 100644
--- a/src/core/lib/event_engine/posix_engine/.clang-format
+++ b/src/core/lib/event_engine/posix_engine/.clang-format
@@ -5,9 +5,6 @@ DerivePointerAlignment: false
 PointerAlignment: Left
 IncludeBlocks: Regroup
 IncludeCategories:
-  # port_platform.h is before almost everything
-  - Regex: '^<grpc/(support|impl/codegen)/port_platform.h>'
-    Priority: -100
   # ruby.h is even more first if it's included
   - Regex: '^<ruby/ruby.h>'
     Priority: -200
diff --git a/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.cc b/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.cc
index de420eb58f2..df8eeddab97 100644
--- a/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.cc
+++ b/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.cc
@@ -11,8 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/ev_epoll1_linux.h"
 
 #include <stdint.h>
@@ -27,6 +25,7 @@
 #include <grpc/event_engine/event_engine.h>
 #include <grpc/status.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 #include <grpc/support/sync.h>
 
 #include "src/core/lib/event_engine/poller.h"
diff --git a/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.h b/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.h
index cd7fc887d63..0bd86a7296b 100644
--- a/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.h
+++ b/src/core/lib/event_engine/posix_engine/ev_epoll1_linux.h
@@ -14,8 +14,6 @@
 
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EV_EPOLL1_LINUX_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EV_EPOLL1_LINUX_H
-#include <grpc/support/port_platform.h>
-
 #include <list>
 #include <memory>
 #include <string>
@@ -26,6 +24,7 @@
 #include "absl/strings/string_view.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/poller.h"
 #include "src/core/lib/event_engine/posix_engine/event_poller.h"
diff --git a/src/core/lib/event_engine/posix_engine/ev_poll_posix.cc b/src/core/lib/event_engine/posix_engine/ev_poll_posix.cc
index dc5503a1e74..ab575288e35 100644
--- a/src/core/lib/event_engine/posix_engine/ev_poll_posix.cc
+++ b/src/core/lib/event_engine/posix_engine/ev_poll_posix.cc
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/ev_poll_posix.h"
 
 #include <stdint.h>
@@ -32,6 +30,7 @@
 #include <grpc/event_engine/event_engine.h>
 #include <grpc/status.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
diff --git a/src/core/lib/event_engine/posix_engine/ev_poll_posix.h b/src/core/lib/event_engine/posix_engine/ev_poll_posix.h
index 25e66a611ac..d10044e8e42 100644
--- a/src/core/lib/event_engine/posix_engine/ev_poll_posix.h
+++ b/src/core/lib/event_engine/posix_engine/ev_poll_posix.h
@@ -15,8 +15,6 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EV_POLL_POSIX_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EV_POLL_POSIX_H
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 #include <string>
 
@@ -25,6 +23,7 @@
 #include "absl/strings/string_view.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/poller.h"
 #include "src/core/lib/event_engine/posix_engine/event_poller.h"
diff --git a/src/core/lib/event_engine/posix_engine/event_poller.h b/src/core/lib/event_engine/posix_engine/event_poller.h
index bcdd866c909..49cf7769364 100644
--- a/src/core/lib/event_engine/posix_engine/event_poller.h
+++ b/src/core/lib/event_engine/posix_engine/event_poller.h
@@ -14,8 +14,6 @@
 
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EVENT_POLLER_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EVENT_POLLER_H
-#include <grpc/support/port_platform.h>
-
 #include <string>
 
 #include "absl/functional/any_invocable.h"
@@ -23,6 +21,7 @@
 #include "absl/strings/string_view.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/forkable.h"
 #include "src/core/lib/event_engine/poller.h"
diff --git a/src/core/lib/event_engine/posix_engine/event_poller_posix_default.cc b/src/core/lib/event_engine/posix_engine/event_poller_posix_default.cc
index eb567e81f5c..7cad58fe92e 100644
--- a/src/core/lib/event_engine/posix_engine/event_poller_posix_default.cc
+++ b/src/core/lib/event_engine/posix_engine/event_poller_posix_default.cc
@@ -12,14 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 #include <string>
 
 #include "absl/strings/str_split.h"
 #include "absl/strings/string_view.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/config/config_vars.h"
 #include "src/core/lib/event_engine/forkable.h"
 #include "src/core/lib/event_engine/posix_engine/ev_epoll1_linux.h"
diff --git a/src/core/lib/event_engine/posix_engine/event_poller_posix_default.h b/src/core/lib/event_engine/posix_engine/event_poller_posix_default.h
index bfde1904d9c..f1ec8c39d9e 100644
--- a/src/core/lib/event_engine/posix_engine/event_poller_posix_default.h
+++ b/src/core/lib/event_engine/posix_engine/event_poller_posix_default.h
@@ -15,10 +15,10 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EVENT_POLLER_POSIX_DEFAULT_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_EVENT_POLLER_POSIX_DEFAULT_H
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
+#include <grpc/support/port_platform.h>
+
 namespace grpc_event_engine {
 namespace experimental {
 
diff --git a/src/core/lib/event_engine/posix_engine/grpc_polled_fd_posix.h b/src/core/lib/event_engine/posix_engine/grpc_polled_fd_posix.h
index 3feea096e84..d1d17f8c809 100644
--- a/src/core/lib/event_engine/posix_engine/grpc_polled_fd_posix.h
+++ b/src/core/lib/event_engine/posix_engine/grpc_polled_fd_posix.h
@@ -15,11 +15,10 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_GRPC_POLLED_FD_POSIX_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_GRPC_POLLED_FD_POSIX_H
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/gprpp/sync.h"
 #include "src/core/lib/iomgr/port.h"
diff --git a/src/core/lib/event_engine/posix_engine/internal_errqueue.cc b/src/core/lib/event_engine/posix_engine/internal_errqueue.cc
index dfe22a73819..2ee13382c91 100644
--- a/src/core/lib/event_engine/posix_engine/internal_errqueue.cc
+++ b/src/core/lib/event_engine/posix_engine/internal_errqueue.cc
@@ -12,11 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/internal_errqueue.h"
 
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/iomgr/port.h"
 
diff --git a/src/core/lib/event_engine/posix_engine/internal_errqueue.h b/src/core/lib/event_engine/posix_engine/internal_errqueue.h
index 24ece90d326..c779af8106d 100644
--- a/src/core/lib/event_engine/posix_engine/internal_errqueue.h
+++ b/src/core/lib/event_engine/posix_engine/internal_errqueue.h
@@ -15,10 +15,10 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_INTERNAL_ERRQUEUE_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_INTERNAL_ERRQUEUE_H
 
-#include <grpc/support/port_platform.h>
-
 #include <stdint.h>
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/iomgr/port.h"
 
 #ifdef GRPC_POSIX_SOCKET_TCP
diff --git a/src/core/lib/event_engine/posix_engine/lockfree_event.cc b/src/core/lib/event_engine/posix_engine/lockfree_event.cc
index 8480e6bb399..14412070b66 100644
--- a/src/core/lib/event_engine/posix_engine/lockfree_event.cc
+++ b/src/core/lib/event_engine/posix_engine/lockfree_event.cc
@@ -11,8 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/lockfree_event.h"
 
 #include <atomic>
@@ -22,6 +20,7 @@
 
 #include <grpc/support/atm.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix_engine/event_poller.h"
 #include "src/core/lib/event_engine/posix_engine/posix_engine_closure.h"
diff --git a/src/core/lib/event_engine/posix_engine/lockfree_event.h b/src/core/lib/event_engine/posix_engine/lockfree_event.h
index a992e23e463..a9c2635cc91 100644
--- a/src/core/lib/event_engine/posix_engine/lockfree_event.h
+++ b/src/core/lib/event_engine/posix_engine/lockfree_event.h
@@ -14,13 +14,13 @@
 
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_LOCKFREE_EVENT_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_LOCKFREE_EVENT_H
-#include <grpc/support/port_platform.h>
-
 #include <atomic>
 #include <cstdint>
 
 #include "absl/status/status.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/event_engine/posix_engine/posix_engine_closure.h"
 
 namespace grpc_event_engine {
diff --git a/src/core/lib/event_engine/posix_engine/native_posix_dns_resolver.h b/src/core/lib/event_engine/posix_engine/native_posix_dns_resolver.h
index 1bb9266f789..693a70fbb43 100644
--- a/src/core/lib/event_engine/posix_engine/native_posix_dns_resolver.h
+++ b/src/core/lib/event_engine/posix_engine/native_posix_dns_resolver.h
@@ -15,12 +15,12 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_NATIVE_POSIX_DNS_RESOLVER_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_NATIVE_POSIX_DNS_RESOLVER_H
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
 #include "absl/strings/string_view.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/iomgr/port.h"
 
 #ifdef GRPC_POSIX_SOCKET_RESOLVE_ADDRESS
diff --git a/src/core/lib/event_engine/posix_engine/posix_endpoint.cc b/src/core/lib/event_engine/posix_engine/posix_endpoint.cc
index 019c2a39b3e..229fdb74dc1 100644
--- a/src/core/lib/event_engine/posix_engine/posix_endpoint.cc
+++ b/src/core/lib/event_engine/posix_engine/posix_endpoint.cc
@@ -11,8 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/posix_endpoint.h"
 
 #include <errno.h>
@@ -38,6 +36,7 @@
 #include <grpc/event_engine/slice_buffer.h>
 #include <grpc/status.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix_engine/event_poller.h"
 #include "src/core/lib/event_engine/posix_engine/internal_errqueue.h"
diff --git a/src/core/lib/event_engine/posix_engine/posix_engine.cc b/src/core/lib/event_engine/posix_engine/posix_engine.cc
index 7c989337431..275e0dcbf65 100644
--- a/src/core/lib/event_engine/posix_engine/posix_engine.cc
+++ b/src/core/lib/event_engine/posix_engine/posix_engine.cc
@@ -11,8 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/posix_engine.h"
 
 #include <algorithm>
@@ -36,6 +34,7 @@
 #include <grpc/event_engine/slice_buffer.h>
 #include <grpc/support/cpu.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/config/config_vars.h"
 #include "src/core/lib/debug/trace.h"
diff --git a/src/core/lib/event_engine/posix_engine/posix_engine.h b/src/core/lib/event_engine/posix_engine/posix_engine.h
index e47c619a508..257cd6b34b5 100644
--- a/src/core/lib/event_engine/posix_engine/posix_engine.h
+++ b/src/core/lib/event_engine/posix_engine/posix_engine.h
@@ -13,8 +13,6 @@
 // limitations under the License.
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_H
-#include <grpc/support/port_platform.h>
-
 #include <atomic>
 #include <cstdint>
 #include <memory>
@@ -33,6 +31,7 @@
 #include <grpc/event_engine/endpoint_config.h>
 #include <grpc/event_engine/event_engine.h>
 #include <grpc/event_engine/memory_allocator.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/handle_containers.h"
 #include "src/core/lib/event_engine/posix.h"
diff --git a/src/core/lib/event_engine/posix_engine/posix_engine_closure.h b/src/core/lib/event_engine/posix_engine/posix_engine_closure.h
index 24c383df16c..084b096c14a 100644
--- a/src/core/lib/event_engine/posix_engine/posix_engine_closure.h
+++ b/src/core/lib/event_engine/posix_engine/posix_engine_closure.h
@@ -14,14 +14,13 @@
 
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_CLOSURE_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_CLOSURE_H
-#include <grpc/support/port_platform.h>
-
 #include <utility>
 
 #include "absl/functional/any_invocable.h"
 #include "absl/status/status.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 namespace grpc_event_engine {
 namespace experimental {
diff --git a/src/core/lib/event_engine/posix_engine/posix_engine_listener.h b/src/core/lib/event_engine/posix_engine/posix_engine_listener.h
index a10a7ee0583..5a15129ddbd 100644
--- a/src/core/lib/event_engine/posix_engine/posix_engine_listener.h
+++ b/src/core/lib/event_engine/posix_engine/posix_engine_listener.h
@@ -14,8 +14,6 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_LISTENER_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_LISTENER_H
 
-#include <grpc/support/port_platform.h>
-
 #include <string.h>
 
 #include <atomic>
@@ -33,6 +31,7 @@
 #include <grpc/event_engine/event_engine.h>
 #include <grpc/event_engine/memory_allocator.h>
 #include <grpc/event_engine/slice_buffer.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix.h"
 #include "src/core/lib/gprpp/sync.h"
diff --git a/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.cc b/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.cc
index c5052d38180..8f127b3f9c6 100644
--- a/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.cc
+++ b/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.cc
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.h"
 
 #include <limits.h>
@@ -30,6 +28,7 @@
 
 #include <grpc/event_engine/event_engine.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix_engine/tcp_socket_utils.h"
 #include "src/core/lib/event_engine/tcp_socket_utils.h"
diff --git a/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.h b/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.h
index 685798589fb..e5a9684545a 100644
--- a/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.h
+++ b/src/core/lib/event_engine/posix_engine/posix_engine_listener_utils.h
@@ -14,11 +14,10 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_LISTENER_UTILS_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_POSIX_ENGINE_LISTENER_UTILS_H
 
-#include <grpc/support/port_platform.h>
-
 #include "absl/status/statusor.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix_engine/tcp_socket_utils.h"
 
diff --git a/src/core/lib/event_engine/posix_engine/tcp_socket_utils.cc b/src/core/lib/event_engine/posix_engine/tcp_socket_utils.cc
index ab98713b62a..c4045e6c931 100644
--- a/src/core/lib/event_engine/posix_engine/tcp_socket_utils.cc
+++ b/src/core/lib/event_engine/posix_engine/tcp_socket_utils.cc
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/tcp_socket_utils.h"
 
 #include <errno.h>
@@ -27,6 +25,7 @@
 #include <grpc/event_engine/event_engine.h>
 #include <grpc/event_engine/memory_allocator.h>
 #include <grpc/impl/channel_arg_names.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/gpr/useful.h"
 #include "src/core/lib/gprpp/crash.h"  // IWYU pragma: keep
diff --git a/src/core/lib/event_engine/posix_engine/tcp_socket_utils.h b/src/core/lib/event_engine/posix_engine/tcp_socket_utils.h
index 83b52be657c..e569919692a 100644
--- a/src/core/lib/event_engine/posix_engine/tcp_socket_utils.h
+++ b/src/core/lib/event_engine/posix_engine/tcp_socket_utils.h
@@ -15,8 +15,6 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TCP_SOCKET_UTILS_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TCP_SOCKET_UTILS_H
 
-#include <grpc/support/port_platform.h>
-
 #include <functional>
 #include <string>
 #include <utility>
@@ -29,6 +27,7 @@
 #include <grpc/event_engine/memory_allocator.h>
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/gprpp/ref_counted_ptr.h"
 #include "src/core/lib/iomgr/port.h"
diff --git a/src/core/lib/event_engine/posix_engine/timer.cc b/src/core/lib/event_engine/posix_engine/timer.cc
index 4a7aa204439..0473d3c0a6e 100644
--- a/src/core/lib/event_engine/posix_engine/timer.cc
+++ b/src/core/lib/event_engine/posix_engine/timer.cc
@@ -16,8 +16,6 @@
 //
 //
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/timer.h"
 
 #include <algorithm>
@@ -26,6 +24,7 @@
 #include <utility>
 
 #include <grpc/support/cpu.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix_engine/timer_heap.h"
 #include "src/core/lib/gpr/useful.h"
diff --git a/src/core/lib/event_engine/posix_engine/timer.h b/src/core/lib/event_engine/posix_engine/timer.h
index 9c9b220c411..30e4bb2eb6c 100644
--- a/src/core/lib/event_engine/posix_engine/timer.h
+++ b/src/core/lib/event_engine/posix_engine/timer.h
@@ -19,8 +19,6 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TIMER_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TIMER_H
 
-#include <grpc/support/port_platform.h>
-
 #include <stddef.h>
 
 #include <atomic>
@@ -32,6 +30,7 @@
 #include "absl/types/optional.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/posix_engine/timer_heap.h"
 #include "src/core/lib/gprpp/sync.h"
diff --git a/src/core/lib/event_engine/posix_engine/timer_heap.cc b/src/core/lib/event_engine/posix_engine/timer_heap.cc
index 776c2c3f6bd..c3e560ba5cc 100644
--- a/src/core/lib/event_engine/posix_engine/timer_heap.cc
+++ b/src/core/lib/event_engine/posix_engine/timer_heap.cc
@@ -16,14 +16,14 @@
 //
 //
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/timer_heap.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/event_engine/posix_engine/timer.h"
 
 namespace grpc_event_engine {
diff --git a/src/core/lib/event_engine/posix_engine/timer_heap.h b/src/core/lib/event_engine/posix_engine/timer_heap.h
index b59eb9b127f..a13bc206cba 100644
--- a/src/core/lib/event_engine/posix_engine/timer_heap.h
+++ b/src/core/lib/event_engine/posix_engine/timer_heap.h
@@ -19,11 +19,11 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TIMER_HEAP_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TIMER_HEAP_H
 
-#include <grpc/support/port_platform.h>
-
 #include <cstddef>
 #include <vector>
 
+#include <grpc/support/port_platform.h>
+
 namespace grpc_event_engine {
 namespace experimental {
 
diff --git a/src/core/lib/event_engine/posix_engine/timer_manager.cc b/src/core/lib/event_engine/posix_engine/timer_manager.cc
index 4df2dc7ba28..a9aad6d3c1f 100644
--- a/src/core/lib/event_engine/posix_engine/timer_manager.cc
+++ b/src/core/lib/event_engine/posix_engine/timer_manager.cc
@@ -16,8 +16,6 @@
 //
 //
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/timer_manager.h"
 
 #include <memory>
@@ -27,6 +25,7 @@
 #include "absl/types/optional.h"
 
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 #include <grpc/support/time.h>
 
 #include "src/core/lib/debug/trace.h"
diff --git a/src/core/lib/event_engine/posix_engine/timer_manager.h b/src/core/lib/event_engine/posix_engine/timer_manager.h
index 5cd634c51b0..6b034358ef7 100644
--- a/src/core/lib/event_engine/posix_engine/timer_manager.h
+++ b/src/core/lib/event_engine/posix_engine/timer_manager.h
@@ -19,8 +19,6 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TIMER_MANAGER_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TIMER_MANAGER_H
 
-#include <grpc/support/port_platform.h>
-
 #include <stdint.h>
 
 #include <memory>
@@ -30,6 +28,7 @@
 #include "absl/types/optional.h"
 
 #include <grpc/event_engine/event_engine.h>
+#include <grpc/support/port_platform.h>
 
 #include "src/core/lib/event_engine/forkable.h"
 #include "src/core/lib/event_engine/posix_engine/timer.h"
diff --git a/src/core/lib/event_engine/posix_engine/traced_buffer_list.cc b/src/core/lib/event_engine/posix_engine/traced_buffer_list.cc
index b68f2559f4b..314e451c664 100644
--- a/src/core/lib/event_engine/posix_engine/traced_buffer_list.cc
+++ b/src/core/lib/event_engine/posix_engine/traced_buffer_list.cc
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include "src/core/lib/event_engine/posix_engine/traced_buffer_list.h"
 
 #include <stddef.h>
@@ -26,6 +24,7 @@
 #include "absl/functional/any_invocable.h"
 
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 #include <grpc/support/time.h>
 
 #include "src/core/lib/gprpp/sync.h"
diff --git a/src/core/lib/event_engine/posix_engine/traced_buffer_list.h b/src/core/lib/event_engine/posix_engine/traced_buffer_list.h
index 70ceead55b5..f65dba6b009 100644
--- a/src/core/lib/event_engine/posix_engine/traced_buffer_list.h
+++ b/src/core/lib/event_engine/posix_engine/traced_buffer_list.h
@@ -15,14 +15,13 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TRACED_BUFFER_LIST_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_TRACED_BUFFER_LIST_H
 
-#include <grpc/support/port_platform.h>
-
 #include <stdint.h>
 
 #include "absl/functional/any_invocable.h"
 #include "absl/status/status.h"
 #include "absl/types/optional.h"
 
+#include <grpc/support/port_platform.h>
 #include <grpc/support/time.h>
 
 #include "src/core/lib/event_engine/posix_engine/internal_errqueue.h"
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.cc b/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.cc
index e7b2016ee25..c05fd8d4d50 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.cc
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.cc
@@ -12,12 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include <utility>
 
 #include "absl/strings/str_cat.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/gprpp/crash.h"  // IWYU pragma: keep
 #include "src/core/lib/iomgr/port.h"
 
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.h b/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.h
index d1e0f94c9dd..6ab9a6eaeb4 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.h
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.h
@@ -14,13 +14,13 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_EVENTFD_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_EVENTFD_H
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h"
 
 namespace grpc_event_engine {
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.cc b/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.cc
index 81ad04876c8..75c887b0754 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.cc
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.cc
@@ -12,13 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 #include <utility>
 
 #include "absl/strings/str_cat.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/gprpp/crash.h"  // IWYU pragma: keep
 #include "src/core/lib/iomgr/port.h"
 
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.h b/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.h
index d49afabb5a7..7676d6cf57b 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.h
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.h
@@ -14,13 +14,13 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_PIPE_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_PIPE_H
 
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h"
 
 namespace grpc_event_engine {
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h b/src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h
index 2e7f1574280..119dab7ecfb 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h
@@ -42,10 +42,10 @@
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_POSIX_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_POSIX_H
 
-#include <grpc/support/port_platform.h>
-
 #include "absl/status/status.h"
 
+#include <grpc/support/port_platform.h>
+
 namespace grpc_event_engine {
 namespace experimental {
 
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.cc b/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.cc
index d00e34714a9..35768988b65 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.cc
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.cc
@@ -11,13 +11,13 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/event_engine/posix_engine/wakeup_fd_eventfd.h"
 #include "src/core/lib/event_engine/posix_engine/wakeup_fd_pipe.h"
 #include "src/core/lib/event_engine/posix_engine/wakeup_fd_posix.h"
diff --git a/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.h b/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.h
index 51f766fe760..40e9381576a 100644
--- a/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.h
+++ b/src/core/lib/event_engine/posix_engine/wakeup_fd_posix_default.h
@@ -14,12 +14,12 @@
 
 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_POSIX_DEFAULT_H
 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_POSIX_ENGINE_WAKEUP_FD_POSIX_DEFAULT_H
-#include <grpc/support/port_platform.h>
-
 #include <memory>
 
 #include "absl/status/statusor.h"
 
+#include <grpc/support/port_platform.h>
+
 namespace grpc_event_engine {
 namespace experimental {