Combining looks, protection and functionality, this London firm creates cases and accessories for iPhone and Samsung phones using natural materials such as walnut wood, sea shell and bamboo. Co-founders James Griffith, 30, James Day, 27, Lucy Hutchinson, 30 and Will Mullen, 31, have produced video content to promote their products, featuring phones being dropped from heights or hit with hammers, to highlight the quality of their cases. International sales were boosted to £10.2m in the year to March, thanks to growing demand across Europe, the US and Australia.