One of England’s home counties, that is, those that are immediately adjacent to London, Hertfordshire is bordered by Greater London to the south and elsewhere by Bedfordshire, Buckinghamshire, Cambridgeshire and Essex.
Many large UK companies are based in the county, including consumer electronics retailer Dixons Retail plc and pharmaceutical companies Roche UK and GlaxoSmithKline. Tesco is based in the region, as is J. D. Wetherspoon plc.
Hertfordhsire is well served by both road and rail routes as it lies between London and the North, Northwest and Midlands of England. There are two commuter lines from London operated by Transport for London.