diff --git a/packages/0x.js/.npmignore b/packages/0x.js/.npmignore
index 312a23faa0..fbdf7236cb 100644
--- a/packages/0x.js/.npmignore
+++ b/packages/0x.js/.npmignore
@@ -8,3 +8,4 @@ test/
 /generated_docs/
 /scripts/
 /lib/src/monorepo_scripts/
+ganache.log
diff --git a/packages/abi-gen-wrappers/.npmignore b/packages/abi-gen-wrappers/.npmignore
new file mode 100644
index 0000000000..4f00cd9a73
--- /dev/null
+++ b/packages/abi-gen-wrappers/.npmignore
@@ -0,0 +1 @@
+/src/
diff --git a/packages/contract-artifacts/.npmignore b/packages/contract-artifacts/.npmignore
new file mode 100644
index 0000000000..5aebdfd76e
--- /dev/null
+++ b/packages/contract-artifacts/.npmignore
@@ -0,0 +1,2 @@
+/artifacts/
+/src/
diff --git a/packages/contract-wrappers/.npmignore b/packages/contract-wrappers/.npmignore
index 6a222fd45f..a3ce2269fd 100644
--- a/packages/contract-wrappers/.npmignore
+++ b/packages/contract-wrappers/.npmignore
@@ -9,3 +9,5 @@ test/
 /generated_docs/
 /scripts/
 /lib/src/monorepo_scripts/
+/coverage/
+ganache.log
diff --git a/packages/order-utils/.npmignore b/packages/order-utils/.npmignore
index 89302c9089..8096cb579d 100644
--- a/packages/order-utils/.npmignore
+++ b/packages/order-utils/.npmignore
@@ -2,6 +2,10 @@
 yarn-error.log
 /scripts/
 /generated_docs/
-/src/
 tsconfig.json
 /lib/monorepo_scripts/
+/coverage/
+/src/
+/lib/test/
+test/
+ganache.log
diff --git a/packages/order-watcher/.npmignore b/packages/order-watcher/.npmignore
index ac4ab11f24..abec92bfec 100644
--- a/packages/order-watcher/.npmignore
+++ b/packages/order-watcher/.npmignore
@@ -2,8 +2,11 @@
 tsconfig.json
 webpack.config.js
 yarn-error.log
-test/
-/src/
 /_bundles/
 /generated_docs/
 /scripts/
+/coverage/
+/src/
+/lib/test
+test/
+ganache.log
diff --git a/packages/subproviders/.npmignore b/packages/subproviders/.npmignore
index 44df80fad8..8aa120d9d7 100644
--- a/packages/subproviders/.npmignore
+++ b/packages/subproviders/.npmignore
@@ -5,3 +5,4 @@ yarn-error.log
 test/
 tsconfig.json
 /lib/src/monorepo_scripts/
+/coverage/
diff --git a/packages/web3-wrapper/.npmignore b/packages/web3-wrapper/.npmignore
index 24e65ad5bc..edcadbab20 100644
--- a/packages/web3-wrapper/.npmignore
+++ b/packages/web3-wrapper/.npmignore
@@ -1,6 +1,10 @@
 .*
 yarn-error.log
 /scripts/
-/src/
 tsconfig.json
 /lib/monorepo_scripts/
+/coverage/
+/src/
+/lib/test
+test/
+ganache.log