High Commission of Cyprus, London

The East India Club is a gentlemen's club founded in 1849 and situated at 16, St James's Square in London. The full title of the club is the East India, Devonshire, Sports and Public Schools' Club due to mergers with other clubs. The club was originally founded for officers of the East India Company, and its first Patron was Prince Albert. On 21 June 1815, the Prince Regent (later George IV) was the principal guest at a dinner party held at 16 St James's Square, when he heard the news of the victory at Waterloo when Major Henry Percy, aide-de-camp to the Duke of Wellington, presented the Prince Regent with four captured French eagles and Wellington's victory despatch.

Chatham House, also known as the Royal Institute of International Affairs, is an independent policy institute headquartered in London. Its stated mission is to provide commentary on world events and offer solutions to global challenges. It is the originator of the Chatham House Rule.

The Lefevre Gallery (or The Lefevre Galleries) was an art gallery in London, England, operated by Alex. Reid & Lefevre Ltd.The gallery was opened at 1a, King Street, St James's, in 1926, when rival art dealers Alexander Reid and Ernest Lefevre joined forces.Upon Reid's death in 1928, his son, A J McNeill Reid succeeded him. Lefevre resigned in 1931.In 1950, the gallery relocated to premises at 30, Bruton Street, Mayfair.Among artists whose first British solo exhibitions were hosted by the gallery were Salvador Dalí, Edgar Degas, André Derain, L S Lowry, Amedeo Modigliani, Henri Rousseau, and Georges Seurat, It also held the first London exhibitions for Bernard Buffet, Balthus and René Magritte. Others who exhibited there included Francis Bacon, Lucian Freud, Walter Sickert, Wyndham Lewis and the East London Group. The gallery closed in 2002, citing competition from auction houses, changes in tax on works imported from outside the European Union, and the introduction of droit de suite (royalties paid to artists when their work is sold). The name lives on as 'Lefevre Fine Art' founded the same year.

The London Library is an independent lending library in London, established in 1841. It was founded on the initiative of Thomas Carlyle, who was dissatisfied with some of the policies at the British Museum Library. It is located at 14 St James's Square, in the St James's area of the City of Westminster, which has been its home since 1845. Membership is open to all, on payment of an annual subscription, and life and corporate memberships are also available. As of December 2021 the Library had over 7000 members.T. S. Eliot, a long-serving President of the Library, argued in 1952 in an address to members that, "whatever social changes come about, the disappearance of the London Library would be a disaster to civilisation".

The Scotch of St. James is a nightclub situated at Mason's Yard, London.Tucked away at the bottom of an alley it served as a prominent nightclub, live music venue and historically significant meeting place for London's rock elite in the 1960s. The club opened on 14 July 1965 at the height of 1960s swinging London scene and soon replaced the Ad Lib Club which closed in November 1966, as a meeting place for the swinging London set and rock musicians. The heritage of the Scotch St. James was referenced when it was relaunched after 25 years of closure in 2012.

The Red Lion is a Grade II listed public house at 2 Duke of York Street, St James's, London, SW1.It is on the Campaign for Real Ale's National Inventory of Historic Pub Interiors. It was built in 1821.

The St James's Theatre was in King Street, St James's, London. It opened in 1835 and was demolished in 1957. The theatre was conceived by and built for a popular singer, John Braham; it lost money and after three seasons he retired. A succession of managements over the next forty years also failed to make it a commercial success, and the St James's acquired a reputation as an unlucky theatre. It was not until 1879–1888, under the management of the actors John Hare and Madge and W. H. Kendal that the theatre began to prosper. The Hare-Kendal management was succeeded, after brief and disastrous attempts by other lessees, by that of the actor-manager George Alexander, who was in charge from 1891 until his death in 1918. Under Alexander the house gained a reputation for programming that was adventurous without going too far for the tastes of London society. Among the plays he presented were Oscar Wilde's Lady Windermere's Fan (1892) and The Importance of Being Earnest (1895), and A. W. Pinero's The Second Mrs Tanqueray (1893). After Alexander's death the theatre came under the control of a succession of managements. Among the long-running productions were The Last of Mrs Cheyney (1925), Interference (1927), The Late Christopher Bean (1933) and Ladies in Retirement (1939). In January 1950 Laurence Olivier and his wife Vivien Leigh took over the management of the theatre. Their successes included Venus Observed (1950) and for the 1951 Festival of Britain season Caesar and Cleopatra and Antony and Cleopatra. In 1954 Terence Rattigan's Separate Tables began a run of 726 performances, the longest in the history of the St James's. During the run it emerged that a property developer had acquired the freehold of the theatre and obtained the requisite legal authority to knock it down and replace it with an office block. Despite widespread protests the theatre closed in July 1957 and was demolished in December of that year.

Paxton & Whitfield are one of the oldest cheesemongers in England. Their main shop is located at 93 Jermyn Street, London.

Jermyn Street is a one-way street in the St James's area of the City of Westminster in London, England. It is to the south of, parallel, and adjacent to Piccadilly. Jermyn Street is known as a street for gentlemen's-clothing retailers.

Forbidden London (or Forbidden London Clubs) was a public relations company based at 91 Jermyn Street in the London district of St James's between 2008 and 2012 during which time it was owned by James Wilson and David West. The company promoted the nightlife sector, particularly by utilising the Internet to attract guests to events at leading nightclubs in Soho and Mayfair. Rivals at the time of the inception of Forbidden London included London Parties, operated by Nick House - future partner in Mahiki; and Met Parties. The company was notable for staging the first performance of Vivienne Westwood's Active Resistance to Propaganda manifesto at the Bloomsbury Ballroom on Friday 4 December 2009. The performance starred Vivienne Westwood and Michelle Ryan. As the company was based above the nightclub and Russian restaurant at 91 Jermyn Street, both owned by David West, the company was named in online conspiracy theories related to the poisoning of Alexander Litvinenko. This escalated following the unlawful killing of David West although the two incidents were found to be unconnected. In 2010 Forbidden London organised Raef Bjayou's 007 party for UK TV show Party Wars at Amika nightclub in High Street Kensington. Raef came second in the show. In 2011 Forbidden London was nominated for Best Entertainment by Spear's for their Design for Living Awards 2011.In August 2011 Forbidden London announced 1000 job opportunities for young people in London.On 23 October 2017, the 60th anniversary of the Hungarian Revolution of 1956, it was announced on the Forbidden London Facebook page that the brand would relaunch.

The Matthiesen Gallery is an art gallery in St James's, London, England, founded in 1978 by Patrick Matthiesen, son of Francis Matthiesen, an art dealer of Berlin and London. It operates as both a commercial gallery and an art museum. The gallery is located at 7-8 Mason Yard, Duke Street St James's. An earlier Matthiesen Gallery was operated by Francis, first in Berlin, then in London, after he fled Nazi Germany.

Floris (also J. Floris Ltd or Floris of London Holdings Ltd) is the oldest English retailer of fragrance and toiletries and is still family owned and run today by the 8th and 9th generations of the family.