Yes. Invertebrates are animals that neither develop nor retain a vertebral column (backbone). The term covers every animal except the vertebrates, so it is a convenience grouping rather than a single natural lineage.
Most invertebrates are protostomes such as arthropods (insects, spiders, crustaceans), molluscs, annelid worms and flatworms. Others include echinoderms like starfish, tunicates, jellyfish and other cnidarians, and sponges.
Source: Invertebrate, Wikipedia