Organizers
- Ennis Tennis Center
- Enrich Christian Homeschool Association
- Enriched Living
- Ensworth School
- Enteractive Management / Northside Baseball Academy
- Enterprise State Community College
- EntertainUs NZ Pty Ltd
- Environmental Connections Outdoor School
- Environmental Studies Center Camp
- Environmental Studies Center Day Camp
- Enviro-Sports
- Envision
- EO Productions
- EPACENTER ARTS
- EPGFA
- Ephraim Yacht Club
- Ephrata Mennonite School
- Ephrata Recreation Center
- Ephrata Recreation Center and New Holland YMCA
- EPIC Adventures
- Epic Camps
- Epic Camps CAD
- Epic Camps Inc.
- Epic Glow Run
- Epic Rides
- EPIC Series
- EPIC Series LLC
- Epic Sports Marketing
- epilepsy 5k
- Epilepsy Foundation Central & South Texas
- Epilepsy Foundation of Colorado
- Epilepsy Foundation of Georgia
- Epilepsy Foundation of Hawaii
- Episcopal Church Camp of Illinois
- Episcopal Church in Colorado
- Episcopal Collegiate School
- Episcopal Day School
- Episcopal Day School of Evergreen
- Episcopal Diocese of Lexington
- Episcopal Diocese of the Central Gulf Coast
- Epping Forest Summer Camp
- Epsilon Sigma Alpha
- Equal Justice Foundation
- Equal Playing Field, Inc.
- Equalizers Running Club
- Equestrian
- Equinox24
- Equip Disciples
- Equi-Valent Riding Center
- Erial Little League
