Indiana Code Title 23. Business and Other Associations § 23-0.5-5-5

(1) maintaining, defending, mediating, arbitrating, or settling an action or proceeding;

(2) carrying on any activity concerning its internal affairs, including holding meetings of its interest holders or governing persons;

(3) maintaining accounts in financial institutions;

(4) maintaining offices or agencies for the transfer, exchange, and registration of securities of the entity or maintaining trustees or depositories with respect to those securities;

(5) selling through independent contractors;

(6) soliciting or obtaining orders by any means if the orders require acceptance outside Indiana before they become contracts;

(7) making loans or otherwise creating or acquiring indebtedness, mortgages, or security interests in real or personal property;

(8) securing or collecting debts or enforcing mortgages or security interests in property securing the debts, and holding, protecting, or maintaining property so acquired;

(9) conducting an isolated transaction completed within thirty (30) days that is not conducted in the course of repeated transactions of a like nature;

(10) owning, without more, property;

(11) doing business in interstate commerce;  and

(12) if the entity is a nonprofit corporation, soliciting funds if otherwise authorized by Indiana law.