Henkels & McCoy Earns Top 10 Ranking on EC&M's Listing of Top 50 Electrical Contractors October 20, 2016 Henkels & McCoy is pleased to be recognized by Electrical Construction & Maintenance as a Top 50 Electrical Contractor, placing sixth in the 2016 listing. See the Top 20 Electrical Contractors from this year in the gallery below: EC&M's 2016 Top 20 Electrical Contractors