diff --git a/data/ecosystems/e/ethereum-dev-tools.toml b/data/ecosystems/e/ethereum-dev-tools.toml
new file mode 100644
index 00000000..e96cb6b6
--- /dev/null
+++ b/data/ecosystems/e/ethereum-dev-tools.toml
@@ -0,0 +1,16 @@
+# Ecosystem Level Information
+title = "Ethereum Dev Tools"
+
+sub_ecosystems = []
+
+github_organizations = []
+
+# Repositories
+[[repo]]
+url = "https://github.com/memester-xyz/solenv"
+
+[[repo]]
+url = "https://github.com/naddison36/sol2uml"
+
+[[repo]]
+url = "https://github.com/naddison36/tx2uml"
diff --git a/data/ecosystems/e/ethereum.toml b/data/ecosystems/e/ethereum.toml
index 3a6169d3..7cab821b 100644
--- a/data/ecosystems/e/ethereum.toml
+++ b/data/ecosystems/e/ethereum.toml
@@ -192,6 +192,7 @@ sub_ecosystems = [
   "Erasure",
   "Ether Cards",
   "Ethereum Consensus",
+  "Ethereum Dev Tools",
   "Ethereum Execution",
   "Ethereum Name Service",
   "Ethermon",