Trade directories show that by 1822 the firm had moved a few doors west to 224, and an advertisement in the Morning Post announced a further change of address in 1835 to "more eligible" premises at No.

Not long after Slocock's retirement in 1825, James Swaine invited William Isaac to become a partner, which role he assumed from at least 1829 to 1848.

In 1845, some three years before William Isaac resigned, Edward Swaine took into partnership his nephew and son-in-law James Adeney, who had served a seven-year apprenticeship with him.

The sporting press in March 1863 reported the appointment of Swaine & Adeney as whip-manufacturers to Albert Edward, Prince of Wales.

As the growing railway network ate into the demand for coaching whips, the firm welcomed the opportunity to build custom among the hunting and racing community for whom the Prince of Wales stood out as the royal figurehead.

In 1927 Swaine & Adeney bought out G. & J. Zair Ltd of Birmingham, the firm's biggest rivals in the field of whip-making.

In February 1943, Swaine & Adeney on Piccadilly and Thomas Brigg & Sons, umbrella-makers, round the corner at 23 St James's Street decided to join forces.

Whips and other leather goods continued to be made at the Piccadilly shop and at Zair's factory in Birmingham.

For Terence Young's film From Russia with Love (1963), Swaine Adeney Brigg made James Bond's briefcase, faithful to Ian Fleming's original 1957 novel: "Q Branch had put together this smart-looking bag, ripping out the careful handiwork of Swaine and Adeney".

For the 1961 British television series The Avengers Swaine Adeney Brigg made a custom Whangee umbrella featuring a sword hidden in the shaft.

In the 1980s the firm decided to open an American branch in San Francisco to meet the growing demand from America and contain the risk of currency fluctuations between the pound and the US dollar.

The firm found some financial relief when the Japanese conglomerate Fukuske Corporation paid £750,000 for a 20 per cent stake in the company.

Although Robert had nursed the firm back into trading with a small profit, he and the Adeney and Brigg family shareholders decided in the summer of 1990 to sell their 80 per cent stake in the company for a reported £4 to £5 million.

[5] De Bruyne achieved big savings by moving the shop from Piccadilly to cheaper premises in Old Bond Street.

Swaine Adeney Brigg bought Herbert Johnson, the venerable firm of hatters of 38 New Bond Street in 1996.

In a return to the line of business of the firm's founding fathers, Swaine Adeney Brigg made six postilion whips for the wedding of the Duke of Cambridge to Miss Catherine Middleton in 2011.