diff --git a/cmd/drone-server/server.go b/cmd/drone-server/server.go
index 9a6d69848..d2fe0b214 100644
--- a/cmd/drone-server/server.go
+++ b/cmd/drone-server/server.go
@@ -102,6 +102,11 @@ var flags = []cli.Flag{
 		Name:   "orgs",
 		Usage:  "list of approved organizations",
 	},
+	cli.StringSliceFlag{
+		EnvVar: "DRONE_REPO_OWNERS",
+		Name: "repo-owners",
+		Usage: "List of syncable repo owners",
+	},
 	cli.BoolFlag{
 		EnvVar: "DRONE_OPEN",
 		Name:   "open",
diff --git a/model/settings.go b/model/settings.go
index 1f73a89e5..26a021ce2 100644
--- a/model/settings.go
+++ b/model/settings.go
@@ -20,6 +20,7 @@ type Settings struct {
 	Secret string          // Secret token used to authenticate agents
 	Admins map[string]bool // Administrative users
 	Orgs   map[string]bool // Organization whitelist
+	OwnersWhitelist map[string]bool // Owners whitelist
 }
 
 // IsAdmin returns true if the user is a member of the administrator list.
diff --git a/router/middleware/config.go b/router/middleware/config.go
index 27e692bbc..5a2ad6814 100644
--- a/router/middleware/config.go
+++ b/router/middleware/config.go
@@ -39,6 +39,7 @@ func setupConfig(c *cli.Context) *model.Settings {
 		Secret: c.String("agent-secret"),
 		Admins: sliceToMap2(c.StringSlice("admin")),
 		Orgs:   sliceToMap2(c.StringSlice("orgs")),
+		OwnersWhitelist: sliceToMap2(c.StringSlice("repo-owners")),
 	}
 }
 
diff --git a/server/sync.go b/server/sync.go
index a14cde446..1c2d9a019 100644
--- a/server/sync.go
+++ b/server/sync.go
@@ -31,6 +31,35 @@ type syncer struct {
 	remote remote.Remote
 	store  store.Store
 	perms  model.PermStore
+	match FilterFunc
+}
+
+// FilterFunc can be used to filter which repositories are
+// synchronized with the local datastore.
+type FilterFunc func(*model.Repo) bool
+
+// NamespaceFilter
+func NamespaceFilter(namespaces map[string]bool) FilterFunc {
+	if namespaces == nil || len(namespaces) == 0 {
+		return noopFilter
+	}
+	return func(repo *model.Repo) bool {
+		if namespaces[repo.Owner] {
+			return true
+		} else {
+			return false
+		}
+	}
+}
+
+// noopFilter is a filter function that always returns true.
+func noopFilter(*model.Repo) bool {
+	return true
+}
+
+// SetFilter sets the filter function.
+func (s *syncer) SetFilter(fn FilterFunc) {
+	s.match = fn
 }
 
 func (s *syncer) Sync(user *model.User) error {
@@ -40,22 +69,27 @@ func (s *syncer) Sync(user *model.User) error {
 		return err
 	}
 
+	var remote []*model.Repo
 	var perms []*model.Perm
+
 	for _, repo := range repos {
-		perm := model.Perm{
-			UserID: user.ID,
-			Repo:   repo.FullName,
-			Pull:   true,
-			Synced: unix,
+		if s.match(repo) {
+			remote = append(remote, repo)
+			perm := model.Perm{
+				UserID: user.ID,
+				Repo:   repo.FullName,
+				Pull:   true,
+				Synced: unix,
+			}
+			if repo.Perm != nil {
+				perm.Push = repo.Perm.Push
+				perm.Admin = repo.Perm.Admin
+			}
+			perms = append(perms, &perm)
 		}
-		if repo.Perm != nil {
-			perm.Push = repo.Perm.Push
-			perm.Admin = repo.Perm.Admin
-		}
-		perms = append(perms, &perm)
 	}
 
-	err = s.store.RepoBatch(repos)
+	err = s.store.RepoBatch(remote)
 	if err != nil {
 		return err
 	}
diff --git a/server/user.go b/server/user.go
index 18ad347bf..146f8eda6 100644
--- a/server/user.go
+++ b/server/user.go
@@ -45,10 +45,13 @@ func GetFeed(c *gin.Context) {
 		user.Synced = time.Now().Unix()
 		store.FromContext(c).UpdateUser(user)
 
+		config := ToConfig(c)
+
 		sync := syncer{
 			remote: remote.FromContext(c),
 			store:  store.FromContext(c),
 			perms:  store.FromContext(c),
+			match: NamespaceFilter(config.OwnersWhitelist),
 		}
 		if err := sync.Sync(user); err != nil {
 			logrus.Debugf("sync error: %s: %s", user.Login, err)
@@ -87,11 +90,16 @@ func GetRepos(c *gin.Context) {
 		user.Synced = time.Now().Unix()
 		store.FromContext(c).UpdateUser(user)
 
+		config := ToConfig(c)
+
 		sync := syncer{
 			remote: remote.FromContext(c),
 			store:  store.FromContext(c),
 			perms:  store.FromContext(c),
+			match: NamespaceFilter(config.OwnersWhitelist),
 		}
+
+
 		if err := sync.Sync(user); err != nil {
 			logrus.Debugf("sync error: %s: %s", user.Login, err)
 		} else {