Orion180 Insurance Group Inc. has filed a registration statement with the US Securities and Exchange Commission (SEC) for a proposed initial public offering of its Class A common stock. The Melbourne, Florida-based company has applied to list on the Nasdaq Global Select Market under the ticker "OIG."
Founded in 2018 by Kenneth Gregg, Orion180 has grown entirely through organic expansion into a multiline specialty homeowners insurer operating across 14 states. Its products span excess and surplus lines homeowners coverage, admitted homeowners, and private flood insurance. The company distributed through more than 14,000 active independent agents as of June 30.
The S-1 filing reports approximately $601 million in managed premiums written for the 12 months ending in June 30. Revenue for the first half of 2026 reached $80.1 million, up from $50.4 million in the same period a year earlier, according to the filing. The company moved from a net loss of $3 million in H1 2025 to net income of $13.5 million in H1 2026.
Orion180 reported 69% premium growth in 2025. For 2026, it secured a $1.15 billion reinsurance program, up 36% from its 2025 tower, backed by 41 reinsurers. The company has appeared on the Inc. 5000 list of the fastest-growing private companies in the US three consecutive times.
The IPO filing arrives as the excess and surplus (E&S) homeowners segment posts some of the strongest volume growth in the broader surplus lines market. E&S homeowners direct premiums written reached $4.14 billion nationally in 2025, up 29.5% over 2024, according to S&P Global Market Intelligence. Admitted carrier withdrawals from catastrophe-exposed states drove the gain.
That displacement is central to how Orion180 built its book. The company writes through its E&S carrier in coastal and catastrophe-exposed markets and through its admitted entity in non-coastal areas.
The shift of homeowners from admitted to E&S markets has been sharpest in California, Florida, and Texas. Climate-related losses outpaced regulated rate adjustment in those states and pushed multiple large carriers to curtail new business.
Orion180 describes itself in the S-1 as the second largest E&S lines homeowners insurance provider in the US by direct written premiums. The characterization is the company's own, with no independently named source cited in the filing.
No share count, price range, or proceeds target has been disclosed. RBC Capital Markets, UBS Investment Bank, and Raymond James will serve as lead book-running managers. Goldman Sachs, Deutsche Bank Securities, Citizens Capital Markets, and Texas Capital Securities will act as additional managers.
The registration statement has not yet become effective. No securities may be sold until it does.
