board of governors; executive committee
Refers to a committee or board composed of 幹事 (managers, executive members) within an organization, often responsible for planning and decision-making.
The budget proposal will be discussed at next month's board of governors meeting.
委員会 is a general committee, while 幹事会 specifically implies a committee of managers or executive members.
Compound of 幹事 (kanji, 'manager, executive secretary') + 会 (kai, 'meeting, association').