Best Electricians Pennsylvania

Change log

Dated changes to the data and the formula, most recent first. The same entries are in the Atom feed at /feed.xml.

Data updates

  • 13 November 2026: ranking data of 13 November 2026; 150 family-run and 672 ranked companies; first in the family-run list: Thomas Edison Electric Inc; first publication, 2946 pages.

Formula changes

Formula v1.5 is the first published version, and every later change will be listed here with its date and reason.

Reviews and corrections

Corrections made after publication are listed here.