To what extent is working in the manufacture of tables, chairs, and cabinets for projects where alcohol is served, or for companies dealing with usury, permissible?

The fundamental principle regarding your work is permissibility, except for that which involves assisting in sin, such as preparing places for alcohol consumption or stock exchanges based on prohibited transactions. There is no blame upon you for remaining in your job, but refrain from tasks specifically related to places of alcohol consumption and the like. If you are unable to avoid such tasks, then it is obligatory for you to leave the job entirely and seek work that does not involve cooperation in sin.