High Street, running through the town centre, is the main focus of activity at night having a high concentration of the town's bars, clubs and restaurants.
The head offices of a number of national companies such as British Waterways, J D Wetherspoon, Camelot Group, operator of the National Lottery; Iveco, manufacturers of commercial vehicles; Haden Young, the building services division of Balfour Beatty; Bathstore, the largest bathroom retailer in the UK; construction firm Taylor Woodrow; and Mothercare, are located in the town. The borough is also the UK base of many multi-nationals including C.H. Robinson, Total Oil, Sanyo, TK Maxx, Costco, Vinci and Beko. International golf tournaments such as the 2006 World Golf Championship have taken place at the Grove hotel.
The town was home to the Scammell Lorries Factory from 1922 until its closure in 1988. The site is now a residential area. Tandon Motorcycles, founded by Devdutt Tandon, were also manufactured in Colne Way, By-Pass road, Watford from 1947 until 1959. Models included the Imp, the Milemaster, the Superglide and the Kangaroo.
Plans are underway to develop a new health campus complete with heliport adjacent to the site of the current Watford General Hospital