Wis. Stat. § 238.08: Records of the corporation.

All records of the corporation are open to the public as provided in s. 19.35 (1) except those records relating to the following:

(1) Pending grants, loans, or economic development projects that, in the opinion of the corporation, must remain confidential to protect the competitive nature of the grant, loan, or project.

(2) Confidential tax information received from the department of revenue under s. 71.78.