Flood Insurance Firm Neptune Files for US IPO as Revenue Grows

Traders work on the floor at the New York Stock Exchange.

Photographer: Michael Nagle/Bloomberg

Neptune Insurance Holdings Inc. filed for an initial public offering in the US, showing growing revenue for the flood insurance company.

The St. Petersburg, Florida-based company posted net income of $35 million on $119 million in revenue last year, and has generated $22 million of net income on $71 million of revenue in the first six months of 2025, according to a Wednesday filing with the US Securities and Exchange Commission.