This is the 1613th most frequent Russian word.
учреждениях
"Institutions" or "establishments."
In this sentence, 'учреждениях' refers to governmental organizations where events such as seminars can take place.
Мы проводим семинар в государственных учреждениях.
We are conducting a seminar in state institutions.
Here, 'учреждениях' specifies educational establishments being renovated or updated.
Весной началось обновление в образовательных учреждениях.
In spring, renovations began in educational institutions.
In this usage, 'учреждениях' relates to healthcare facilities as specific places requiring appropriate preparation.