Capitalism does not require corporations. For most of its existence, capitalism did not have corporations. Corporations themselves are an invention of the state through corporate law
When and where do you believe capitalism began?
East India Company - Wikipedia
"On 22 September 1599, a group of merchants met and stated their intention 'to venture in the pretended voyage to the East Indies (the which it may please the Lord to prosper), and the sums that they will adventure', committing £30,133 (over £4,000,000 in today's money).
[19][20]
"Two days later, 'the Adventurers' reconvened and resolved to apply to the Queen for support of the project.
[20]
"Although their first attempt had not been completely successful, they nonetheless sought the Queen's unofficial approval to continue.
"They bought ships for their venture and increased their capital to £68,373.
"The Adventurers convened again a year later, on 31 December, and this time they succeeded; the Queen granted a
Royal Charter[13] to '
George, Earl of Cumberland, and 215
Knights,
Aldermen, and
Burgesses'[
citation needed] under the name,
Governor and Company of Merchants of London trading into the East Indies."