The following companies were purchased in late 2017 or 2018. As such, they are no longer featured on the PCT Top 100 List.

Company2017 Rank Date AnnouncedPurchased By
Wil-Kil Pest Control35March 2018ServiceMaster
Killingsworth Environmental37May 2018Anticimex
Turner Pest Control41March 2018Anticimex
Royal Pest Solutions51December 2017Ecolab
Cooper Pest Solutions53May 2018Terminix
OPC Services61March 2018Rollins
Varment Guard74February 2018Plunkett’s Pest Control
Hometown Pest Control79May 2018Terminix
Advanced Pest Management91May 2018Rentokil Steritech