This is the 10900th most frequent Russian word.
выпускающих
"Producing" or "releasing."
The word 'выпускающие' is used to describe the factories (subject) that are producing (action) cars.
Заводы, выпускающие автомобили, находятся за городом.
Factories that produce cars are located outside the city.
Here, 'выпускающие' refers to clients (subject) who are putting out a specific product, school textbooks.
У нас есть клиенты, выпускающие школьные учебники.
We have clients who publish school textbooks.
In this sentence, 'выпускающие' pertains to designers (subject) creating a product, namely their collections.