The phrase "principal partner" refers to the main or primary person or organization that is part of a partnership. They have a significant role and responsibility in the partnership. Full definition
As principal partner of domestic litigation firm Cordell & Cordell, Joseph Cordell has seen many such cases and alienated parents. (mensrights.com)
Keenly aware of the painfully obvious lack of activity at the once - thriving mall, Jim Hull, principal partner in the Hull Group, offers a Southern homily. (hudsonvalleyone.com)
Principal partnered with Boca Raton, Fla. - based Woolbright Development Inc. in a joint venture to purchase The Marketplace at Dr. Phillips in Orlando last summer. (nreionline.com)