Hills Pet Nutrition is a company that walks the talk - and the dog too. At the company's site in Hertfordshire,several dogs can often be found in the office.

"We are a company of pet lovers. It is encouraged by the business and enshrined in the mission statement," says Libby Sheridan, veterinary affairs manager, adding that there is nothing like walking her dog Gulliver at lunchtime to blow the mental cobwebs away.