Various.

The history below relates to Sun Insurance Office Limited only. For the histories of subsidiary companies and companies which merged with Sun Insurance please see their sub-fonds entries (CLC/B/192-02 to -37).

In 1708 Charles Povey founded the Exchange House Fire Office. In the next year, a Company of London Insurers was formed, consisting of 24 members. In 1710 Povey transferred his right in the Exchange House, also known as the Sun Fire Office, to the Company of London Insurers. The business of the Sun Fire Office was henceforth conducted in Causey's Coffee House near St Paul's Cathedral. In March 1711 it moved to a house in Sweeting's Rents. The Company was governed by two bodies: the General Court which was a meeting of all the managers, and the Committee of Management (consisting of 7 members) which met weekly.

A branch office, known as the Charing Cross office (or Westminster House), was opened in Craig's Court in 1726. The office was moved to 60 and 61 Charing Cross in 1866.

Business in Germany was established during the first half of the 19th century, and during the second half of the century the Sun Insurance Office began to operate in rest of Europe, the Near East, the Far East, the USA, Canada, South America, Australasia, China and Africa.

The Accident Department and the Marine Department were established in 1907 and 1921 respectively.

The name of the company was changed to the Sun Insurance Office in 1891. It became a public limited liability company in 1926. In 1959 it merged with Alliance to form Sun Alliance Insurance Limited, and in 1996 Sun Alliance merged with Royal Insurance to form the Royal and Sun Alliance Insurance Group.

The Sun Life Assurance Society was established in 1810 to take over the life insurance business of the Sun Fire Office. The membership of each company's board of managers was identical. Sun Life was based in Bank Buildings, then at Threadneedle Street, and later at Cheapside. The collection includes very few records of Sun Life Assurance Society.

The Sun Insurance Office archive includes records relating to the Sun Indemnity Company of New York. In 1822 the Sun Fire Office took over the Watertown Insurance Company and a US manager was appointed. By the end of 1886 the company was represented in 20 states. The following year the head office of the US branch was moved to New York. The Sun Insurance Office floated the Sun Indemnity Company of New York and the Patriotic Insurance Company of America in 1922. In 1929 the Sun Underwriters Insurance Company of New York was formed. In 1955 these companies were reorganized into two firms: the Sun branch, and the Sun Insurance Company of New York (incorporating Sun Indemnity, Patriotic, and Sun Underwriters).

The Sun Insurance Office had a number of UK subsidiary companies, including: Bath Sun Fire Office (from 1838, see CLC/B/192-06); Patriotic Assurance Company of Dublin (from 1906, see CLC/B/192-30); Alliance Assurance Company (from 1959, see CLC/B/192-02); London Assurance (from 1965, see CLC/B/192-26); and Planet Assurance Company (from 1968, see CLC/B/192-32).

The company was based at Causey's Coffee House in St Paul's Church Yard (1710-11), Sweeting's Rents (1711-27), Threadneedle Street (1727-63), Bank Buildings in Cornhill (1763-1843), and Threadneedle Street (1843-).