Mark Masons' Hall, London

Berry Bros. & Rudd (BBR) is a family-run British wine and spirits merchant founded in London in 1698. Since then, the company has grown from a small coffee shop into an international business with six offices worldwide. As well as the wines, such as en primeur from places like Bordeaux, Burgundy, the Rhône and Italy, the company also sells wines and spirits under its own-label range, Berry Bros. & Rudd's Own Selection. Other services it offers include wine investment, wine storage, wine tastings, events and educational courses.

Sudan–United Kingdom relations are foreign relations between Sudan and the United Kingdom. Sudan has an embassy in London whilst the United Kingdom has an embassy in Khartoum. Most of the recent relations between the two countries centre on the region of Darfur.

The Embassy of Sudan in London is the diplomatic mission of Sudan in the United Kingdom.In 2013 the embassy was the site of a protest following a crackdown against protestors in Khartoum opposed to cuts in a fuel subsidy.

Lock & Co. Hatters (formally James Lock and Company Limited) is the world's oldest hat shop, the world's 34th oldest family-owned business and is a Royal warrant holder. Its shop is located at 6 St James's Street, London, and is a Grade II* listed building.

York House is a historic wing of St James's Palace, London, built for Frederick, Prince of Wales, on his marriage in 1736. It is in the north-western part of the palace on the site of a former suttling-house (canteen) for the Guards; it overlooks Ambassadors' Court and Cleveland Row to the west of the old Chapel Royal. Prince Frederick occupied it for about a year, until his quarrel with the his father drove him from Court. In 1795, Princess Caroline resided here before her marriage with the Prince of Wales, afterwards George IV. Prince Ernest Augustus, Duke of Cumberland, subsequently King of Hanover, lived here for a great many years; and the Duchess of Cambridge was identified with it from 1851 until her death in 1889. Later occupants included the future George V, the late Duke and Duchess of Gloucester from 1936 to 1970, and Princes Charles, William and Harry, who used it before moving to Clarence House.As Edward, Prince of Wales, the future Edward VIII lived at York House, before his refurbishment of Fort Belvedere in Windsor Great Park.The building includes a suite of somewhat low-pitched rooms on the ground-floor, several drawing-rooms on the first floor, a corridor in the rear, and the servants' rooms on the top storey; all facing Cleveland Row. The ceilings of the top floor are low, height having been sacrificed to that of the drawing-room floor; during the nineteenth century this was a common practice in London mansions. The name York House has been used at various times for other houses occupied by various Dukes of York, including those now known as Cumberland House, Dover House, Lancaster House and The Albany.

Veritas Bespoke is a company that manufactures and retails premium leather-soled shoes for men. The brand is founded in 2013 by the Vietnamese Canadian businessman Thanh Le and Thai Nguyen, the professional shoe cobbler in Calgary, Alberta, Canada. Veritas Bespoke has invented a new approach to the traditional shoe-making method: creating bespoke last from 3D scanning technology used in orthopedics footwear. In July 2013, Veritas Bespoke opened its boutique in Calgary. Two years later, Thanh and Nguyen opened their first store in Vietnam at 56 Le Thanh Ton Street, District 1, Ho Chi Minh City

John Lobb Bootmaker is a company that manufactures and retails a luxury brand of shoes and boots, mainly for men but also for women. Leather goods such as wallets and belts are also available. Founded by John Lobb (1829–95), John Lobb Bootmaker has been in business since 1849 in London and circa 1900 in Paris. John Lobb's son William took over the business and after he died in 1916 the business was led by Betsy Lobb.The original London bespoke workshop at 9 St James's Street remains family-owned and continues to operate independently (as John Lobb Limited). In 1976, the John Lobb Paris shop was acquired by the Hermès Group, which has developed the John Lobb ready-to-wear shoe brand around the world. The two companies continue to maintain their bespoke shoe-making tradition, with the original Lobb family workshop in London and the Hermès owned workshop in Paris.

Chutney Mary is a fine dining Indian restaurant in London, founded in 1990 by Ranjit Mathrani & Namita Panjabi through their restaurant company whose current name is MW Eat. It has received considerable critical acclaim over the years. It was originally in Kings Road Chelsea, but relocated to St James's, London in 2015.Chutney Mary pioneered in redefining the public face of Indian cuisines by showcasing the gourmet foods from 6 to 8 different regions of India at any one time. It had the rigorous philosophy that the foods of the different regions could best be cooked by the chefs from that region.It was an extremely ambitious undertaking and akin to having a pan European gourmet. Chutney Mary was probably the first Indian restaurant in the world to trace the regional provenance of each dish. Chutney Mary was also pioneered as an Indian restaurant in taking wines seriously, and led the way in the pairing of Indian food and wine.The regional provenance and the dishes on the Chutney Mary proved the trailblazer for the supermarket packaged foods – e.g. Waitrose which from the mid-1990s started prepared dishes with the regional provenance and with names from the Chutney Mary menu.

Truefitt & Hill is the oldest barbershop in the world, as certified by Guinness Book of World Records in April 2000. Truefitt was established in 1805 by William Francis Truefitt. Truefitt styled himself as hairdresser to the British Royal Court and the firm received their first Royal Warrant from King George III. In 1911, Edwin Hill set up a barber shop on Old Bond Street, also near the royal neighbourhoods in London and it was to this address H.P. Truefitt (William's nephew) moved in 1935 to create Truefitt & Hill. Other Truefitt regional outlets were merged into the present company in 1941. The present location of Truefitt & Hill at 71 St. James's Street, was taken up in 1994. In addition, there are locations in Toronto, Beijing, Canberra, Sydney, Dhaka, India, Kuala Lumpur, Singapore, Kuwait, Bangkok, Nepal, Sri Lanka, Bhutan, Vietnam, Myanmar, Bangladesh, Prague, and the Czech Republic.

St James's Palace is the most senior royal palace in London, the capital of the United Kingdom. The palace gives its name to the Court of St James's, which is the monarch's royal court, and is located in the City of Westminster in London. Although no longer the principal residence of the monarch, it is the ceremonial meeting place of the Accession Council, the office of the Marshal of the Diplomatic Corps, and the London residence of several members of the royal family. Built by order of Henry VIII in the 1530s on the site of an isolated leper hospital dedicated to Saint James the Less, the palace was secondary in importance to the Palace of Whitehall for most Tudor and Stuart monarchs. Initially surrounded by a deer park and gardens, it was generally used as a hunting lodge and retreat from the formal court and occasionally a royal guest house. After the destruction by fire of Whitehall, the palace increased in importance during the reigns of the early Hanoverian monarchs but was displaced by Buckingham Palace in the late 18th and the early 19th centuries. After decades of being used increasingly for only formal occasions, the move was formalised by Queen Victoria in 1837. The palace now houses a number of official offices, societies and collections, and all ambassadors and high commissioners to the United Kingdom are still accredited to the Court of St James's. The palace's Chapel Royal is still used for functions of the British royal family. The palace was mainly built between 1531 and 1536 in red-brick, and its architecture is primarily Tudor in style. The Queen's Chapel was added in 1620s, and Clarence House was built directly next to it in the 1820s. A fire in 1809 destroyed parts of the palace, including the monarch's private apartments, which were never replaced. Some 17th-century interiors survive, but most were remodelled in the 19th century.

Arthur's was a London gentlemen's club, now dissolved, which was established in 1811 and was disbanded in 1940. Between 1827 and 1940 it was based at 69 St James's Street. It is now best remembered for having built the London clubhouse currently occupied by the Carlton Club. The club was first formed at a meeting at a bank at 16 St James's Street on 8 May 1811, with the resolution 'That a New Club be forthwith established, to consist of 300 Members.' The club is notable for being the first to be a members' club wholly owned by the members, as opposed to the proprietary clubs which previously existed, like White's, Boodle's, and Brooks's, and it accordingly served as the mould for most of the nineteenth century members'-owned clubs which followed.

The Carlton Club is a private members' club in St James's, London. It was the original home of the Conservative Party before the creation of Conservative Central Office. Membership of the club is by nomination and election only.