diff --git a/CODEOWNERS b/CODEOWNERS
index c4d48c58e25a..6ea4d01fa23d 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -46,6 +46,9 @@
 #   code owner is not expected to validate the technical correctness of
 #   submissions. Correctness is typically handled by another code owner group
 #   which is also assigned to any given piece of documentation.
+# - @cilium/sig-foundations:
+#   Review changes to the core libraries and provide guidance to overall
+#   software architecture.
 # - @cilium/github-sec:
 #   Responsible for maintaining the security of repositories in the Cilium
 #   project by maintaining best practices for workflow usage, for instance
@@ -269,6 +272,7 @@ Makefile* @cilium/build
 /daemon/cmd/prefilter.go @cilium/sig-datapath
 /daemon/cmd/proxy.go @cilium/proxy
 /daemon/cmd/state.go @cilium/endpoint
+/daemon/cmd/cells*.go @cilium/sig-foundations
 /Documentation/ @cilium/docs-structure
 /Documentation/_static/ @cilium/docs-structure
 /Documentation/api.rst @cilium/sig-agent @cilium/docs-structure
@@ -414,7 +418,7 @@ jenkinsfiles @cilium/ci-structure
 /pkg/fqdn/ @cilium/sig-agent @cilium/proxy
 /pkg/fswatcher/ @cilium/sig-datapath @cilium/sig-hubble
 /pkg/health/ @cilium/sig-agent
-/pkg/hive/ @cilium/sig-agent
+/pkg/hive/ @cilium/sig-foundations
 /pkg/hubble/ @cilium/sig-hubble
 /pkg/hubble/metrics @cilium/sig-hubble @cilium/sig-hubble-api
 /pkg/identity @cilium/sig-policy
@@ -461,6 +465,7 @@ jenkinsfiles @cilium/ci-structure
 /pkg/policy @cilium/sig-policy
 /pkg/policy/api/ @cilium/api
 /pkg/policy/groups/aws/ @cilium/sig-policy @cilium/aws
+/pkg/promise @cilium/sig-foundations
 /pkg/proxy/ @cilium/proxy
 /pkg/proxy/accesslog @cilium/api
 /pkg/redirectpolicy @cilium/sig-lb
@@ -469,6 +474,8 @@ jenkinsfiles @cilium/ci-structure
 /pkg/service @cilium/sig-lb
 /pkg/source @cilium/ipcache
 /pkg/status/ @cilium/sig-agent
+/pkg/statedb @cilium/sig-foundations
+/pkg/stream @cilium/sig-foundations
 /pkg/sysctl @cilium/sig-datapath
 /pkg/testutils/ @cilium/ci-structure
 /pkg/tuple @cilium/sig-datapath
diff --git a/Documentation/codeowners.rst b/Documentation/codeowners.rst
index 758fddf9b1fb..d335ebf4ee49 100644
--- a/Documentation/codeowners.rst
+++ b/Documentation/codeowners.rst
@@ -49,6 +49,9 @@ repository in the Cilium project:
   code owner is not expected to validate the technical correctness of
   submissions. Correctness is typically handled by another code owner group
   which is also assigned to any given piece of documentation.
+- `@cilium/sig-foundations <https://github.com/orgs/cilium/teams/sig-foundations>`__:
+  Review changes to the core libraries and provide guidance to overall
+  software architecture.
 - `@cilium/github-sec <https://github.com/orgs/cilium/teams/github-sec>`__:
   Responsible for maintaining the security of repositories in the Cilium
   project by maintaining best practices for workflow usage, for instance