diff --git a/lib/bluetooth.c b/lib/bluetooth.c
index 84e40c8..6e09773 100644
--- a/lib/bluetooth.c
+++ b/lib/bluetooth.c
@@ -1106,7 +1106,7 @@ const char *bt_compidtostr(int compid)
 	case 421:
 		return "Icon Health and Fitness";
 	case 422:
-		return "Wille Engineering (formely as Asandoo GmbH)";
+		return "Wille Engineering (formerly as Asandoo GmbH)";
 	case 423:
 		return "ENERGOUS CORPORATION";
 	case 424:
@@ -1402,7 +1402,7 @@ const char *bt_compidtostr(int compid)
 	case 569:
 		return "JIN CO, Ltd";
 	case 570:
-		return "Alatech Tehnology";
+		return "Alatech Technology";
 	case 571:
 		return "Beijing CarePulse Electronic Technology Co, Ltd";
 	case 572:
@@ -3056,7 +3056,7 @@ const char *bt_compidtostr(int compid)
 	case 1396:
 		return "AFFORDABLE ELECTRONICS INC";
 	case 1397:
-		return "Integral Memroy Plc";
+		return "Integral Memory Plc";
 	case 1398:
 		return "Globalstar, Inc.";
 	case 1399:
@@ -4562,7 +4562,7 @@ const char *bt_compidtostr(int compid)
 	case 2150:
 		return "LAONZ Co.,Ltd";
 	case 2151:
-		return "Western Digital Techologies, Inc.";
+		return "Western Digital Technologies, Inc.";
 	case 2152:
 		return "WIOsense GmbH & Co. KG";
 	case 2153:
@@ -4634,7 +4634,7 @@ const char *bt_compidtostr(int compid)
 	case 2186:
 		return "sclak s.r.l.";
 	case 2187:
-		return "Tricorder Arraay Technologies LLC";
+		return "Tricorder Array Technologies LLC";
 	case 2188:
 		return "GB Solution co.,Ltd";
 	case 2189:
diff --git a/lib/sdp.c b/lib/sdp.c
index 411a95b..7210ce0 100644
--- a/lib/sdp.c
+++ b/lib/sdp.c
@@ -2429,7 +2429,7 @@ int sdp_set_add_access_protos(sdp_record_t *rec, const sdp_list_t *ap)
  * Using a value of NULL for langAttrList has
  * effect of removing this attribute (if previously set)
  *
- * This function replaces the exisiting sdp_lang_attr_t
+ * This function replaces the existing sdp_lang_attr_t
  * structure (if any) with the new one specified.
  *
  * returns 0 if successful or -1 if there is a failure.
@@ -2539,7 +2539,7 @@ void sdp_set_group_id(sdp_record_t *rec, uuid_t uuid)
  * Using a value of NULL for profileDesc has
  * effect of removing this attribute (if previously set)
  *
- * This function replaces the exisiting ProfileDescriptorList
+ * This function replaces the existing ProfileDescriptorList
  * structure (if any) with the new one specified.
  *
  * returns 0 if successful or -1 if there is a failure.
@@ -3177,7 +3177,7 @@ int sdp_device_record_update(sdp_session_t *session, bdaddr_t *device, const sdp
 	p = rspbuf + sizeof(sdp_pdu_hdr_t);
 
 	if (rsphdr->pdu_id == SDP_ERROR_RSP) {
-		/* The status can be invalid sintax or invalid record handle */
+		/* The status can be invalid syntax or invalid record handle */
 		errno = EINVAL;
 		status = -1;
 	} else if (rsphdr->pdu_id != SDP_SVC_UPDATE_RSP) {
diff --git a/lib/sdp_lib.h b/lib/sdp_lib.h
index aad664f..7a48ad5 100644
--- a/lib/sdp_lib.h
+++ b/lib/sdp_lib.h
@@ -425,7 +425,7 @@ void sdp_record_free(sdp_record_t *rec);
 /*
  * Register a service record.
  *
- * Note: It is the responsbility of the Service Provider to create the
+ * Note: It is the responsibility of the Service Provider to create the
  * record first and set its attributes using setXXX() methods.
  *
  * The service provider must then call sdp_record_register() to make