What type of corporation is involved primarily in non-profit activities for the benefit of society?

The type of corporation primarily involved in non-profit activities for the benefit of society is known as an eleemosynary corporation. This designation specifically refers to entities that focus on charitable purposes, providing aid and support for the betterment of the community or specific groups within it. These corporations do not operate for profit but instead channel their resources toward social, educational, religious, or charitable contributions.

In distinguishing this from other types of corporations, an ecclesiastical corporation is more closely tied to the church or religious institutions. A lay corporation generally refers to organizations that are secular and may or may not be nonprofit. A civil corporation typically refers to corporations formed for business purposes and may generate profit for its owners. None of these others directly embody the non-profit spirit purely dedicated to societal welfare as the eleemosynary corporation does.