Data / Public companies / Surety insurance
Surety insurance (SIC 6351): 8 companies that file annual reports with the SEC
8 companies that file annual reports with the SEC have the industry code SIC 6351 (Surety insurance), in the data filed through September 30, 2026. 8 report revenue, a combined $14.96 billion, with a median of $1.15 billion. 75.0% of the 8 that report net income show a profit. The largest by revenue is Old Republic International Corp ($9.14 billion).
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- SIC code
- 6351
- SEC industry title
- Surety Insurance
- Division
- Finance, insurance and real estate
- Companies with an annual report in the data
- 8
- Companies that report revenue
- 8
- Combined revenue
- $14.96 billion
- Median revenue
- $1.15 billion
- Reported a net profit
- 6 of 8 (75.0%)
- Combined total assets
- $72.32 billion
- Large accelerated filers
- 6
- Newest annual report filed
- March 4, 2026
Largest by revenue
Latest fiscal year, from each company's annual report. Each name links to the company's page.
| Company | Business address | Revenue | Net income | Total assets | Revenue change |
|---|---|---|---|---|---|
| Old Republic International Corp | Chicago, IL | $9.14 billion | $935.4 million | $29.86 billion | 11% |
| Essent Group LTD. | Hamilton, Bermuda | $1.26 billion | $690 million | $7.44 billion | 1.5% |
| Mgic Investment Corp | Milwaukee, WI | $1.21 billion | $738.3 million | $6.64 billion | 0.5% |
| Radian Group Inc | Wayne, PA | $1.20 billion | $582.6 million | $8.12 billion | -0.8% |
| Assured Guaranty LTD | Hamilton Bermuda, Bermuda | $1.11 billion | $503 million | $12.18 billion | 27.3% |
| Nmi Holdings, Inc. | Emeryville, CA | $706.4 million | $388.9 million | $3.84 billion | 8.5% |
| Octave Specialty Group Inc | New York, NY | $251.2 million | $-259,091,000 | $2.22 billion | 6.5% |
| Mbia Inc | Purchase, NY | $80 million | $-177,000,000 | $2.01 billion | 90.5% |
Companies by size of revenue
Companies that report revenue, by the revenue in their latest annual report.
| Revenue | Companies | Share |
|---|---|---|
| $10 million to $100 million | 1 | 12.5% |
| $100 million to $1 billion | 2 | 25% |
| $1 billion to $10 billion | 5 | 62.5% |
States with the most companies
By state of the business address.
| State | Companies | Share | Combined revenue |
|---|---|---|---|
| New York | 2 | 25% | $331.2 million |
| California | 1 | 12.5% | $706.4 million |
| Illinois | 1 | 12.5% | $9.14 billion |
| Pennsylvania | 1 | 12.5% | $1.20 billion |
| Wisconsin | 1 | 12.5% | $1.21 billion |
Newest annual reports
By the date the company filed its latest annual report with the SEC.
| Company | Filed | Fiscal year ended | Form | Revenue |
|---|---|---|---|---|
| Octave Specialty Group Inc | March 4, 2026 | December 31, 2025 | 10-K | $251.2 million |
| Assured Guaranty LTD | February 27, 2026 | December 31, 2025 | 10-K | $1.11 billion |
| Mbia Inc | February 26, 2026 | December 31, 2025 | 10-K | $80 million |
| Old Republic International Corp | February 26, 2026 | December 31, 2025 | 10-K | $9.14 billion |
| Mgic Investment Corp | February 25, 2026 | December 31, 2025 | 10-K | $1.21 billion |
| Radian Group Inc | February 20, 2026 | December 31, 2025 | 10-K | $1.20 billion |
| Essent Group LTD. | February 18, 2026 | December 31, 2025 | 10-K | $1.26 billion |
| Nmi Holdings, Inc. | February 12, 2026 | December 31, 2025 | 10-K | $706.4 million |
Filer category
The SEC's size class for the company when it filed.
| Category | Companies | Share |
|---|---|---|
| Large accelerated filer | 6 | 75% |
| Accelerated filer | 2 | 25% |
Updated September 30, 2026. Read from SEC Financial Statement Data Sets (sec.gov). Public data from the US Securities and Exchange Commission. Companies are the registrants whose latest annual report (form 10-K, 20-F or 40-F) is in the SEC Financial Statement Data Sets for 2025 Q3 to 2026 Q3, filed through September 30, 2026. Figures are for the whole fiscal year of that report, in US dollars, as the company filed them in XBRL: SpecStream does not adjust them. The SEC does not guarantee the data sets, and they do not replace the filings. Revenue is the revenue tag the company used; banks and funds often use none. Combined totals add each company once and can include a parent and its subsidiary that both file. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.