Solutions
Associations are not all shaped the same.
Some have people as members, some have companies with staff on seats, and plenty have both at once. The same system takes the shape yours already has, in the words your members already use. You do not reorganize the association to suit the software.
Sell to people and to companies at once
Some associations sell to individuals, some to organizations, most to both. One membership model covers it without a second product.
Configure the words your members already use
Chapters, sections, components, affiliates. Configure the words your members already use.