diff --git a/app/views/shared/_partners.haml b/app/views/shared/_partners.haml
index 5fe4c31a..68104550 100644
--- a/app/views/shared/_partners.haml
+++ b/app/views/shared/_partners.haml
@@ -46,6 +46,8 @@
   %li{style: 'margin: 10px auto 30px;'}= link_to lazy_image_tag('/partners/aqoocan.webp', alt: 'アクウカン - 所沢市のコワーキングスペース＆工作室', data: { toggle: 'tooltip', placement: 'bottom' }, title: '75台の『ニャイス！コード』寄贈'), 'https://news.coderdojo.jp/2025/02/14/coderdojo-de-nyaicecode/', target: "_blank", rel: "noopener"
   %li{style: 'margin: 10px auto 30px;'}= link_to lazy_image_tag('/partners/jcdpgstadium.webp', alt: 'プログラミングスタジアム', data: { toggle: 'tooltip', placement: 'bottom' }, title: '地域の Dojo の周知支援'), 'https://jcdpgstadium.jp/', target: "_blank", rel: "noopener"
 
+  %li{style: 'margin: 20px auto 30px;'}= link_to lazy_image_tag('/partners/backlog.png', alt: 'Backlog｜チームで使うプロジェクト管理・タスク管理ツール', data: { toggle: 'tooltip', placement: 'bottom' }, title: 'Backlog によるタスク管理支援'), 'https://backlog.com/ja/', target: "_blank", rel: "noopener"
+
   /%li= link_to lazy_image_tag('/partners/scrivito.png', alt: 'Scrivito', data: { toggle: 'tooltip', placement: 'bottom' }, title: 'Cloud-Based CMS の提供'), 'https://scrivito.com/', target: "_blank", rel: "external noopener"
   /%li= link_to lazy_image_tag('/partners/cygames.webp', alt: 'Cygames', data: { toggle: 'tooltip', placement: 'bottom' }, title: 'PC寄贈に関する支援'), 'https://news.coderdojo.jp/2018/11/28/from-cygames-to-all-dojos-in-japan/', target: "_blank", rel: "noopener"
 
diff --git a/public/partners/backlog.png b/public/partners/backlog.png
new file mode 100644
index 00000000..e1c95a0d
Binary files /dev/null and b/public/partners/backlog.png differ