For large-scale eSIM provisioning you’ll want to work with enterprise-grade suppliers that offer management portals and APIs. Truphone’s Business platform lets you order and activate hundreds of eSIM profiles at once, and they provide full lifecycle controls—activation, suspension, reassignment—via their API. Twilio’s Super SIM is another solid choice: it isn’t a consumer eSIM in the traditional sense, but its virtual SIM runs on multiple carrier networks in over 150 countries and you manage everything through Twilio’s dashboard or REST API.