diff --git a/src/_companies/europe/belgium/brussels/apptweak/index.md b/src/_companies/europe/belgium/brussels/apptweak/index.md
new file mode 100644
index 0000000..3fdfe33
--- /dev/null
+++ b/src/_companies/europe/belgium/brussels/apptweak/index.md
@@ -0,0 +1,31 @@
+---
+name:  "AppTweak S.A."
+
+continent: "Europe"
+country: "Belgium"
+region: "Brussels"
+city: "Brussels"
+
+website: https://www.apptweak.com/
+careers_page: https://jobs.apptweak.com/
+
+work_arrangements:
+  - "hybrid"
+
+stack:
+  - "sinatra"
+  - "rails"
+  - "react"
+  - "postgres"
+  - "mysql"
+
+created_at: 2023-04-24 14:16:00
+
+logo: "logo.png"
+---
+
+AppTweak is the leading ASO tool driven by data science. AppTweak empowers +1,700 mobile leaders - such as Amazon, Jam City, Yelp and Adobe - to grow their apps and games with actionable insights in a simple interface.
+
+AppTweak’s all-in-one platform offers ASO Tools, Ad Intelligence, App Intelligence and Market Intelligence.
+
+Launched in 2014, AppTweak serves customers from all corners of the world, with offices in Brussels, San Francisco, Tokyo and Bengaluru. 
diff --git a/src/_companies/europe/belgium/brussels/apptweak/logo.png b/src/_companies/europe/belgium/brussels/apptweak/logo.png
new file mode 100644
index 0000000..aa01cd3
Binary files /dev/null and b/src/_companies/europe/belgium/brussels/apptweak/logo.png differ
diff --git a/src/_data/stacks.yml b/src/_data/stacks.yml
index 1ee5144..6dba497 100644
--- a/src/_data/stacks.yml
+++ b/src/_data/stacks.yml
@@ -5,6 +5,9 @@ default:
 rails:
   label: "Rails"
   klasses: "bg-red-100 text-red-600"
+sinatra:
+  label: "Sinatra"
+  klasses: "bg-red-100 text-red-600"
 
 # Databases
 postgres:
@@ -37,4 +40,4 @@ emberjs:
 # Monitoring / APM
 appsignal:
   label: "AppSignal"
-  klasses: "bg-slate-800 text-slate-100"
\ No newline at end of file
+  klasses: "bg-slate-800 text-slate-100"