der Anbieter
provider
A person, company, or organization that sells goods or provides services.
Es lohnt sich, die Tarife verschiedener Mobilfunkanbieter zu vergleichen.
It is worth comparing the rates of different mobile phone providers.

provider
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provider
A person, company, or organization that sells goods or provides services.
Es lohnt sich, die Tarife verschiedener Mobilfunkanbieter zu vergleichen.
It is worth comparing the rates of different mobile phone providers.

'Der Anbieter' (the provider) is derived directly from the separable verb 'anbieten' (to offer). The ending '-er' refers to the person or company performing the action, that is, offering something.
Diese Firma bietet günstige Handytarife an.
This company offers affordable mobile phone plans.
The word 'Anbieter' (provider) is very often used as the second part of compound nouns. The first part describes what is being offered, e.g. 'Stromanbieter' (electricity provider), 'Internetanbieter' (internet provider), or 'Reiseanbieter' (travel provider).
Bevor du einen Vertrag unterschreibst, solltest du verschiedene Stromanbieter vergleichen.
Before you sign a contract, you should compare different electricity providers.
You will often find the word 'Anbieter' (provider) in texts about business, technology, and contracts. It is used when comparing products, rates, or services.
Welcher Anbieter hat das beste Preis-Leistungs-Verhältnis?
Which provider has the best value for money?
customer
'der Kunde' and 'der Anbieter' are on different sides of a business relationship. The customer buys something or uses a service. The provider sells something or provides a service. The words can be confused because both appear in the same situation, for example in a contract, a purchase, or an online service. The simple guideline is: the person who pays or uses the service is the customer. The person or company that sells or provides it is the provider.

Nach dem Vergleich wählt sie den günstigsten Anbieter für Strom.
After comparing them, she chooses the cheapest electricity provider.
Im Geschäft fragt der Kunde nach einer kleineren Größe.
In the shop, the customer asks for a smaller size.