The Smith's Snackfood Company was enlarged in 1930. During the depression, Smith travelled to Australia to expand the business. The company nearly went under during this time and had to be propped back up by a small number of visitors and investors. The company bounced back and expanded its brands, aided with the help of advancing technology. Smiths was later owned by biscuit company Nabisco, BSN and finally sold to American company PepsiCo in the 1990s. Subsequently, Pepsico withdrew the brand, in favour of popular British brand Walkers, which had been heavily marketed in a campaign using ex-footballer turned television presenter Gary Lineker. Many
Real Crisps for independent retailers and pubs. After a financial investment in 1999, the company changed its name to become Sirhowy Valley Foods, while maintaining Real Crisps as the brand name of the lead product. In August 2005, Real Crisps moved into a new factory in Crumlin, Caerphilly. The new factory, measuring , increased the production capacity by 50 percent. This enabled the 90 staff to produce 37,000 cases of crisps per week. The move was due to demand outstripping the ability to supply at the previous location in Cwmfelinfach. At this point, Real Crisps were the second biggest company behind Kettle