This major group includes establishments engaged in performing services, not elsewhere classified, such as those rendered by engineers, architects, accountants, artists, lecturers and writers. This major group also includes noncommercial establishments engaged in educational scientific and research activities:

    891.  Engineering, architectural and surveying services;

    892.  Noncommercial educational, scientific and research organizations;

    893.  Accounting, auditing and bookkeeping services;

    899.  Services not elsewhere classified. (Prior code § 11-20-086)