The literal translation is "also is with you", but the more natural English translation depends on the context of the sentence.
For example:
* "Mi amor, tambien esta contigo." (My love, he/she is also with you.)
* "La felicidad tambien esta contigo." (Happiness is also with you.)
* "El éxito tambien esta contigo." (Success is also with you.)
Let me know if you have a specific sentence in mind and I can give you a more tailored translation!