Gammelbys anvender følgende underdatabehandlere:

• SharpSpring
• MailChimp
• ActiveCampaign
• Campaign Monitor
• Google
• Facebook
• LinkedIn
• Trello
• Hootsuite
• Lucky Orange
• Hubspot
• Dropbox
• Zapier
• PandaDoc
• QWILR
• Albacross
• YourWOO
• Autoflow

Liste senest opdateret 2. december 2021.