S.D. Codified Laws § 2-12-2
The secretary of state shall prepare and keep a directory of registered lobbyists, in conformity with the provisions of this chapter, in which shall be entered the names of all persons employed for any purpose in connection with any legislation included within the terms of this chapter. The directory shall contain the name and business address of the employer, the name, city and state of residence, email address, phone number, and occupation of the person employed, the date of the employment or agreement therefor, the length of time the employment is to continue, if such time can be determined, and the special subject or subjects of legislation, if any, to which the employment relates. The directory shall be a public record and open to the inspection of any citizen, upon demand, at any time during the regular business hours of the Office of the Secretary of State.
SDCL 2-12-2