MAXQDA - a professional software for qualitative and mixed methods data analysis
spaCy - spaCy is a library for advanced natural language processing in Python and Cython.
ATLAS.ti - ATLAS.ti is a powerful workbench for the qualitative analysis of large bodies of textual, graphical, audio and video data. It offers a variety of sophisticated tools for accomplishing the tasks associated with any systematic approach to "soft" data.
Amazon Comprehend - Discover insights and relationships in text
QualCoder - A very complete Free and Open Source Software (FOSS) Computer-Assisted Qualitative Data Analysis Software (CAQDAS) written in Python. It works with text, images, and multimedia such as audios and videos.
NLTK - NLTK is a platform for building Python programs to work with human language data.