This Glasgow-based vehicle hire firm achieved sales of £23.5m in the year to March. Led by Mark Anderson, 36, its fleet of 4,500 cars and vans is primarily used by utility providers — including Scottish Power and SSE — and the emergency services. All of its depots have remained open throughout this year, and it is using paperless handover to ensure social distancing. The company is owned by Mark’s father Douglas Anderson, 65, and Iain Anderson, 61, who also own equipment rental company GAP Group, which featured on our Top Track 250.