Amazon Comprehend - Discover insights and relationships in text
monkeylearn - Text Mining Made Easy. Extract and classify information from text. Integrate with your App within minutes.
FuzzyWuzzy - FuzzyWuzzy is a Fuzzy String Matching in Python that uses Levenshtein Distance to calculate the differences between sequences.
spaCy - spaCy is a library for advanced natural language processing in Python and Cython.
Sinequa - Sinequa provides a real-time big data search & analytics platform and offers access to all structured and unstructured data.
Google Cloud Natural Language API - Natural language API using Google machine learning