diff --git a/bucketing/constants.go b/bucketing/constants.go
index cddd196c..baff4f13 100644
--- a/bucketing/constants.go
+++ b/bucketing/constants.go
@@ -46,6 +46,10 @@ const (
 	ComparatorNotExist     = "!exist"
 	ComparatorContain      = "contain"
 	ComparatorNotContain   = "!contain"
+	ComparatorStartWith    = "startWith"
+	ComparatorNotStartWith = "!startWith"
+	ComparatorEndWith      = "endWith"
+	ComparatorNotEndWith   = "!endWith"
 )
 
 const (
diff --git a/bucketing/segmentation.go b/bucketing/segmentation.go
index 114f8dff..629d2992 100644
--- a/bucketing/segmentation.go
+++ b/bucketing/segmentation.go
@@ -103,6 +103,14 @@ func checkStringsFilter(str string, filter *UserFilter) bool {
 		return str != "" && stringArrayContains(values, str)
 	} else if operator == "!contain" {
 		return str == "" || !stringArrayContains(values, str)
+	} else if operator == "startWith" {
+		return str != "" && stringArrayStartsWith(values, str)
+	} else if operator == "!startWith" {
+		return str == "" || !stringArrayStartsWith(values, str)
+	} else if operator == "endWith" {
+		return str != "" && stringArrayEndsWith(values, str)
+	} else if operator == "!endWith" {
+		return str == "" || !stringArrayEndsWith(values, str)
 	} else {
 		return false
 	}
@@ -126,6 +134,24 @@ func stringArrayContains(substrings []string, search string) bool {
 	return false
 }
 
+func stringArrayStartsWith(prefixes []string, search string) bool {
+	for _, prefix := range prefixes {
+		if strings.HasPrefix(search, prefix) {
+			return true
+		}
+	}
+	return false
+}
+
+func stringArrayEndsWith(suffixes []string, search string) bool {
+	for _, suffix := range suffixes {
+		if strings.HasSuffix(search, suffix) {
+			return true
+		}
+	}
+	return false
+}
+
 func _checkBooleanFilter(b bool, filter *UserFilter) bool {
 	contains := func(arr []bool, search bool) bool {
 		for _, s := range arr {
diff --git a/bucketing/segmentation_test.go b/bucketing/segmentation_test.go
index c34c9329..6989ad06 100644
--- a/bucketing/segmentation_test.go
+++ b/bucketing/segmentation_test.go
@@ -1592,6 +1592,30 @@ func TestDoesUserPassFilter_WithUserEmailFilter(t *testing.T) {
 			values:     []interface{}{"@gmail.com", "@devcycle.com", "@hotmail.com"},
 			expected:   true,
 		},
+		{
+			name:       "User email starts with filter",
+			comparator: ComparatorStartWith,
+			values:     []interface{}{"test"},
+			expected:   true,
+		},
+		{
+			name:       "User email emds with filter",
+			comparator: ComparatorEndWith,
+			values:     []interface{}{"@devcycle.com"},
+			expected:   true,
+		},
+		{
+			name:       "User email does not start with filter",
+			comparator: ComparatorStartWith,
+			values:     []interface{}{"user"},
+			expected:   false,
+		},
+		{
+			name:       "User email does not end with filter",
+			comparator: ComparatorEndWith,
+			values:     []interface{}{"@devcycle.io"},
+			expected:   false,
+		},
 	}
 
 	for _, tc := range testCases {