A company Meta has approved to build software on the WhatsApp Business Platform and onboard businesses through Meta's own sign-up.
A Tech Provider is a company that has gone through Meta's review to build on the WhatsApp Business Platform and offer it to other businesses. Customers connect through Meta's embedded sign-up, which keeps the business in control of its own Meta portfolio, WhatsApp account and phone number.
For a business, this means the connection is official: messages go through Meta's Cloud API, templates are approved by Meta, and the number stays registered to your own business rather than to the provider.
Before connecting, check that the sign-up runs through Meta's own screens and that your business, not the provider, owns the portfolio and number. Marichi Talks is an official Meta Tech Provider: you connect your own number through Meta's sign-up from inside the app.