diff --git a/developers_affiliations6.txt b/developers_affiliations6.txt
index 9e3290c1..4abd4c1e 100644
--- a/developers_affiliations6.txt
+++ b/developers_affiliations6.txt
@@ -12956,7 +12956,8 @@ kkitai: oniku.wo.mogmog!gmail.com
 	Yahoo! Inc.
 kkk777-7: kkk777-7!users.noreply.github.com, kota.kimura0725!gmail.com
 	NTT DATA until 2023-05-01
-	CyberAgent Inc. from 2023-05-01
+	CyberAgent Inc. from 2023-05-01 until 2026-08-11
+	Tetrate.io from 2026-08-12
 kkkkun: kkkkun!users.noreply.github.com, scuzk373x!gmail.com
 	Simplex until 2016-07-01
 	LINE from 2016-07-01 until 2019-11-01