This company apparently originated in 1833 (Ironmonger, 12 November 1887).  The owner was Charles Boardman (c.1793-1873), who by 1837 was listed as a silver cap and ferrule manufacturer in Norfolk Lane, with a house in Allen Street.  In 1843, he moved his workshop to Pond Street, from where he registered a silver mark in 1844.  He manufactured sterling silver products, but by 1847 was also made electro-plated wares.  In the Census (1861), he was a silver plate manufacturer at Pond Street, employing 25 men.  By 1863, Boardman & Glossop had been formed, when Boardman was joined by Arthur Osborne Glossop (bapt.1835-1922).  The latter had been baptised at Zion Chapel, Attercliffe, the son of John Rhodes Glossop (see Glossop & Nutt) and Eliza.  He had started his career as a cutler’s clerk.  In 1871, another silver mark was registered, with the address as Clarence Works, Pond Street.   The firm employed 25 workers.  

Charles Boardman, ‘silver plater’ of Ivy Cottage, Heeley, died on 6 March 1872, aged 79.  He was buried in the General Cemetery, leaving under £4,000.  He had three sons by his wife Mary Hardy Middleton (d. 1874): Charles, George, and William.  Charles Boardman was manager at Clarence Works and lived at Birley Mount, Sheaf Street, in Heeley.  But he died suddenly on 19 December 1874, aged 53, leaving under £600.  George Boardman, silversmith of Springwood Road in Heeley, died at British Place, Stratford New Town, Essex, on 29 May 1876, aged 50.  William Boardman, Charles’s last surviving son, was a silversmith, but he appears – like the others – to have played little or no part in the business after his father’s death.  On 30 April 1912, William (aged 77) and his wife, Frances (78), were discovered dead in their beds in Valley Road, Meersbrook.  They had been asphyxiated by a gas leak.

Arthur Osborne Glossop took control of the firm during the 1870s and 1880s, with his brother, John Rhodes Glossop (1842-1911), as partner.  Boardman & Glossop prospered.  In 1871, the workforce was 63; a decade later, it was 70 (40 men, 10 boys, and 20 women).  Arthur Glossop lived at Parkhead House.  Another silver mark was registered in 1879.   It appears that John R. Glossop retired in the early 1880s (he moved to Bedfordshire and died at Chaucer Road, Bedford, on 5 May 1911, aged 69, leaving £2,881).    Arthur O. Glossop also retired during the 1880s and moved to Devon.  He lived at The Knoll, Brixham, and died on 3 February 1922, aged 87.  He left £13,855 to his widow Frances née Worth (whom he had married at St Jude’s, Eldon Street, in 1860).

In 1883, the company was restyled Boardman, Glossop & Co and a new silver mark ‘WPD’ was registered.  These were the initials of William Pittman Davis (1842-1935?).  The latter had been born on 6 May 1842 at Great Portland Street, Marylebone, London.  He was the son of John Davis, a woollen draper, and his wife, Sarah.  William became a partner in Henry Greene & Co, ironmonger, Newport.  After this was dissolved in 1869, he switched his attention to Sheffield.  He formed a partnership with Frederick Wilson (see Wilson & Davis), a Hatton Garden dealer in silver and electro-plate, and in 1871 they registered a silver mark in Sheffield.   Wilson & Davis was dissolved in 1883, when Davis took over Boardman & Glossop.  The firm sold its products in the domestic market and had colonial customers (in 1888, for example, it exhibited at the Australian Centennial Exhibition in Melbourne).  

In 1895, Boardman, Glossop & Co was registered as a private limited company.  Another silver mark was registered: ‘BG & Co Ld’.   Capital was £10,000 in £10 shares (300 preference and 700 ordinary).  The directors were W. P. Davis, R. F. Mosley, electro-plate manufacturer; and J. J. Saville (1848-1902), a steel and file manufacturer.  William P. Davis also recruited his brother – Frederick Pittman Davis (1858-1911) – as partner.  The latter lived in London and presumably handled the metropolitan trade.   In 1908, Boardman, Glossop was re-registered with £6,000 capital, but the next year became insolvent.   Frederick P. Davis, of Peckham House Asylum, Camberwell Green, Surrey, died on 16 July 1911, leaving about £2 to his widow, Amy Davis.  By then, Doncaster-born William Ibbotson (b. 1866) was director.  The company struggled on, but its manager, William Deane, was killed by a train at Midland Station on 10 March 1916 (Sheffield Yearbook & Record).   In 1917, the firm was again wound up.   In 1923, the Pond Street assets were bought by Frank Cobb.