Kauli Inc., a digital-advertising company, is planning an initial public offering on the Tokyo Stock Exchange to finance expansion in the U.S. and Southeast Asia.

The Tokyo-based company is seeking to go public by March next year, Chief Executive Officer Katsuhiro Takata said in an interview last Friday in his office.

Kauli may seek a valuation of more than ¥30 billion in the offering, according to a source with knowledge of the matter but who asked not to be named because the information is private.