This is the 930th most frequent Russian word.
партнерами
"Partners" (instrumental plural form).
In this context, "партнерами" is instrumental plural, referring to the counterparts or collaborators in an agreement.
Мы достигли соглашения с нашими партнерами.
We reached an agreement with our partners.
Here, "партнерами" specifies the entities (partners) in the instrumental case, emphasizing the source of the action described.
Он всегда ценит доверие, которым его награждают партнеры.
He always values the trust bestowed upon him by partners.
In this example, "партнёрами" (here conforming to "партнёров") indicates the related parties or members of a partnership.