Exhibit 99.1

PRESS RELEASE

Global Indemnity plc Reports Third Quarter 2013 Financial Results.

Dublin, Ireland (November 5, 2013) – Global Indemnity plc (NASDAQ:GBLI) today reported net income for the nine months ended September 30, 2013 of $28.0 million or $1.11 per share. As of September 30^th, book value per share was $33.30, an increase of 3.6% compared to book value per share of $32.15 at December 31, 2012.

Selected Operating and Balance Sheet Data (Dollars in millions, except per share data)

During the nine months ended September 30, 2013, the Company incurred a prepayment charge related to the retirement of debt, and a premium deficiency charge. During the nine months ended September 30, 2012, the Company received the benefit of a limited partnership distribution and net losses and loss adjustment expenses and acquisition costs and other underwriting expenses were also lower than they otherwise would have been as a result of premium deficiency charges recorded in 2011. Excluding these non-routine events, results would have been as follows;

See the notes following the “Summary of Operating Income” table for information regarding the presentation of income excluding non-routine events

Cynthia Y. Valko, Chief Executive Officer, commented: “Global’s insurance and reinsurance premium volume grew by a combined 25% during the first three quarters of 2013 (as compared to 2012). Moreover, the company significantly enhanced operating profitability during the first nine months of 2013 recording a combined ratio¹ of 99% (vs. 108% during the 2012 comparable period) as a result of better underwriting, better pricing, and better weather (absence of a major North American hurricane).”

1

About Global Indemnity plc and its subsidiaries

Global Indemnity plc (NASDAQ:GBLI), through its several direct and indirect wholly owned subsidiary insurance and reinsurance companies, provides both admitted and non-admitted specialty property and casualty insurance coverages in the United States, as well as reinsurance worldwide. Global Indemnity plc’s two primary segments are:

For more information, visit the Global Indemnity plc website at http://www.globalindemnity.ie.

Forward-Looking Information

Forward-looking statements contained in this press release are made under the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995 and involve a number of risks and uncertainties. We caution investors that our actual results may be materially different from the estimates expressed in, or implied, or projected by, the forward looking statements. Please see our periodic reports filed with the Securities and Exchange Commission for a discussion of the risks and uncertainties which may affect us and for a more detailed discussion of our cautionary note regarding forward-looking statements.

2

Global Indemnity plc’s Combined Ratio for the Nine Months Ended September 30, 2013 and 2012

The combined ratio is a key measure of insurance profitability. The components comprising the combined ratio are as follows:

For the nine months ended September 30^th, the calendar year loss ratio decreased by 6.9 points to 57.0 in 2013 from 63.9 in 2012.

Excluding the impact of the 2011 premium deficiency charges, the loss ratio for the nine months ended September 30, 2013 and 2012 was 57.0% and 66.2%.

For the nine months ended September 30^th, the expense ratio increased from 39.5 in 2012 to 43.0 in 2013.

3

Global Indemnity plc’s Gross and Net Premiums Written Results by Segment

Insurance Operations: For the three and nine months ended September 30, 2013, gross premiums written increased 16.7% and 14.1%, respectively, and net premiums written increased 20.3% and 20.0%, respectively, compared to the same periods in 2012. These were primarily driven by an increase in the Company’s small business binding authority lines. Written premium increases were also realized in property brokerage, programs, and other lines. Net written premiums also increased as a result of an increase in retention in property excess of loss and property catastrophe.

Reinsurance Operations: For the three and nine months ended September 30, 2013, gross premiums written increased 57.3% and 78.7%, respectively, and net premiums written increased 57.3% and 80.5%, respectively, compared to the same periods in 2012. These increases were primarily due to several new treaties written during 2013.

# # #

Note: Tables Follow

4

GLOBAL INDEMNITY PLC

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

(Dollars and shares in thousands, except per share data)

5

GLOBAL INDEMNITY PLC

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands)

6

GLOBAL INDEMNITY PLC

SELECTED INVESTMENT DATA

(Dollars in millions)

7

GLOBAL INDEMNITY PLC

SUMMARY OF OPERATING INCOME

(Unaudited)

(Dollars and shares in thousands, except per share data)

Note Regarding Operating Income

Operating income, a non-GAAP financial measure, is equal to net income excluding after-tax net realized investment gains (losses). Operating income is not a substitute for net income determined in accordance with GAAP, and investors should not place undue reliance on this measure.

Note Regarding Presentation of Income Excluding Non-Routine Events

The presentation of income excluding non-routine events, including adjusted net income, adjusted operating income and adjusted per share amounts metrics, is a non-GAAP financial measure. These metrics were presented to show comparable results between periods without the impact of non-routine events. It is not a substitute for net income determined in accordance with GAAP, and investors should not place undue reliance on this measure.

8