The Big Cheese Mega-Sonic Plug-in Twin-Speaker Ultrasonic Pest Repeller

The Big Cheese is a leading UK brand specializing in DIY pest control solutions, particularly rodent management. Launched in 1993, the brand has grown into a household name, known for its comprehensive range of traps, baits, and electronic deterrents like the Mega-Sonic ultrasonic repeller.

The brand is owned by STV International Ltd, a family-run enterprise based in Norfolk, England. While STV International oversees the design, testing, and marketing from its UK headquarters, manufacturing for its electronic products and many hardware items is often outsourced to specialized facilities in China to maintain competitive pricing. However, some elements of their product range, such as certain live-catch traps and natural repellents, have been manufactured or assembled within the UK.

STV International remains an independent private company, led by Edwin Allingham. It continues to dominate the British pest control market while exporting to over 25 countries worldwide, focusing on humane and poison-free alternatives for home and garden protection.