Pennwriters, Inc (PENW) In Brief Year Formed: 1989 Tax Code Designation: 501(c)(3) (See NCCS) Incorporation State: Pennsylvania Employer Identification Number: 25-1632709 Home Page: http://pennwriters.org/ ByLaws: http://pennwriters.org/about/pennwriters-bylaws/ Additional Resources National Center for Charitable Statistics ProPublica Nonprofit Explorer GuideStar