diff --git a/communication/slack-config/usergroups.yaml b/communication/slack-config/usergroups.yaml
index 91c84321a..2aa870955 100644
--- a/communication/slack-config/usergroups.yaml
+++ b/communication/slack-config/usergroups.yaml
@@ -4,6 +4,20 @@
 # e.g., @release-managers is defined in sig-release/usergroups.yaml
 
 usergroups:
+  - name: contributor-comms
+    long_name: Upstream Marketing
+    description: Upstream Marketing group.
+    channels:
+      - sig-contribex
+    members:
+      - chrisshort
+      - jonasrosland
+      - onlydole
+      - paris
+      - "Rin Oliver"
+      - simplytunde
+      - Tunde
+
   - name: test-infra-oncall
     external: true
   - name: youtube-admins
diff --git a/communication/slack-config/users.yaml b/communication/slack-config/users.yaml
index 64431e377..f84396a85 100644
--- a/communication/slack-config/users.yaml
+++ b/communication/slack-config/users.yaml
@@ -6,6 +6,7 @@ users:
   bubblemelon: U7K9C643G
   calebamiles: U1ZDD4CUR
   castrojo: U1W1Q6PRQ
+  chrisshort: U2YGXSD9B
   cpanato: U8DFY4TTK
   dougm: U8GG20UE9
   feiskyer: U0ASA4398
@@ -15,6 +16,7 @@ users:
   jbeda: U09QZ63DX
   jdumars: U0YJS6LHL
   jeefy: U5MCFK468
+  jonasrosland: U0A4G34S2
   justaugustus: U0E0E78AK
   katharine: UBTBNJ6GL
   listx: UFCU8S8P3
@@ -23,7 +25,10 @@ users:
   nzoueidi: UBU72MWP2
   onlydole: U1DD4AZND
   paris: U5SB22BBQ
+  Rin Oliver: USF4LMDCN
   sarahnovotny: U0AGW7007
   saschagrunert: U53SUDBD4
+  simplytunde: UAY1NBYHE
   sumitranr: UCQN13L9H
   tpepper: U6UB5V4TX
+  Tunde: UAY977ENN