This is the 8782nd most frequent Russian word.
подрядная
"Подрядная" translates to "contractual" or "related to a contract" in English.
Here, 'подрядная' is an adjective describing the company responsible for completing work under a contract.
Подрядная компания завершила строительство моста.
The contractor company completed the bridge construction.
In this sentence, 'подрядная' is used as an adjective modifying 'организация', highlighting that the organization is engaged in contractual work.
Вчера посетил подрядную организацию для обсуждения проекта.
Yesterday, I visited the contractor organization to discuss the project.
Here, 'подрядная' describes the firm that has been contracted to perform specific tasks.