Regarding Ballistix999 statement about Hussey moving around quite a bit between gunmakers, that also is kind of a misnomer.
H.J. Hussey had his first job with Holland & Holland and worked up to the role of gun fitter and assistant manager. Through his contacts, he then brought over customers to his new job with Joseph Lang and Son (owned solely by Webley) and within a few months, had enough clout to get his name on the door. Lang & Hussey was born.
By 1898 H.J. Hussey was out on his own and H.H. Hussey, his son joined him in his solo career located at 81 New Bond Street. After a very successful career selling a lot of London best guns to Abercrombie & Fitch and others, H.J. moved on to his last location with Ogden, Smith & Hussey. (famous double rifles and rook guns came from this later pedigree in the early 20th century)
All the Hussey names since then, from Harrison & Hussey to the current Cogswell & Harrison had nothing to do with H.J. Hussey and was simply his good will being sold in the market.
In conclusion, 4 companies in a lifetime seems a small amount by my standards. (then again, I'm a consultant so I've had that many in a year before)