This is the 7935th most frequent Russian word.
клиентам
"Клиентам" means "to clients" or "to customers" in English.
In this sentence, 'клиентам' is the dative plural form of 'клиент' (client, customer), referring to the recipients of the discounts.
Мы предлагаем скидки нашим клиентам.
We offer discounts to our customers.
Here, 'клиентам' indicates the dative plural case, showing to whom the service is available.
Услуга доступна только постоянным клиентам.
The service is available only to regular customers.
In this example, 'клиентам' is again in the dative plural form, specifying the recipients of the letters.