diff --git a/assets/images/logos/GMRI.jpg b/assets/images/logos/GMRI.jpg
new file mode 100644
index 00000000..30db5b9c
Binary files /dev/null and b/assets/images/logos/GMRI.jpg differ
diff --git a/assets/images/logos/earthmover.png b/assets/images/logos/earthmover.png
new file mode 100644
index 00000000..72d68ea7
Binary files /dev/null and b/assets/images/logos/earthmover.png differ
diff --git a/index.md b/index.md
index c5bc75a5..f7cf3803 100644
--- a/index.md
+++ b/index.md
@@ -178,13 +178,49 @@ Thanks to our sponsors that have made OceanHackWeek possible over the last sever
 
   <div class="col-4" style="margin-bottom: 1rem">
 
-  ```{image} assets/images/logos/GMRI.png
+  ```{image} assets/images/logos/GMRI.jpg
   :alt: Gulf of Maine Research Institute
   :width: 180px
   ```
 
   </div>
 
+  <div class="col-4" style="margin-bottom: 1rem">
+
+  ```{image} assets/images/logos/earthmover.png
+  :alt: Earthmover
+  :width: 180px
+  ```
+
+  </div>
+
+  <div class="col-4" style="margin-bottom: 1rem">
+
+  ```{image} assets/images/logos/SOI-Logo-fullcolor-brand-V3.jpg
+  :alt: Schmidt Ocean Institute
+  :width: 180px
+  ```
+
+  </div>
+
+  <div class="col-4" style="margin-bottom: 1rem">
+
+  ```{image} assets/images/logos/openscapes.png
+  :alt: Openscapes
+  :width: 180px
+  ```
+
+  </div>
+  
+  <div class="col-4" style="margin-bottom: 1rem">
+
+  ```{image} assets/images/logos/nmfs-opensci.png
+  :alt: NMFS Open Science
+  :width: 180px
+  ```
+
+  </div>
+
 </div>
 
 
diff --git a/ohw25/index.md b/ohw25/index.md
index 3ea62b49..d7700ff8 100644
--- a/ohw25/index.md
+++ b/ohw25/index.md
@@ -52,7 +52,7 @@ The events will be all-day workshops (approximately 9am - 5pm). Join us for five
   </div>
   <div class="col-4" style="margin-bottom: 1rem">
 
-  ```{image} ../assets/images/logos/GMRI.png
+  ```{image} ../assets/images/logos/GMRI.jpg
   :alt: Gulf of Maine Research Institute
   :width: 180px
   ```
@@ -111,6 +111,15 @@ The events will be all-day workshops (approximately 9am - 5pm). Join us for five
   :width: 180px
   ```
 
+  </div>
+
+  <div class="col-4" style="margin-bottom: 1rem">
+
+  ```{image} ../assets/images/logos/earthmover.png
+  :alt: Earthmover
+  :width: 180px
+  ```
+
   </div>
   
   </div>