Direct Line, Driver Hire, Hays, Green Flag, Renault, Seafield, Nationwide, Sainsbury's, Ryder PLC, Aramark, ACC Distribution, BP, TNT, CIS, WannaVan.com, Suckling Transport and Renault all made sure their fleets participated in the programme.
The Safety Week's main theme, 'slow down for the sake of our children' was intended to highlight the fact that last year the number of children killed on Britain's roads rose 14% to 218.
Brake's Fleet Safety Forum members ran a number of initiatives, including banners, and letters from the managing directors to staff about Road Safety Week and company rules on road safety.
Mary Williams, Brake chief executive, said: 'Part of good risk management practice in companies is ensuring the hearts and minds of employees are won over to safety. Safety has to be a company wide commitment to work, and Road Safety Week is an ideal way to highlight and rally that commitment.
In addition, Brake is extremely pleased to see companies highlighting safety in their community through sponsorship of banners and education of local children.'
The Institute of Advanced Motorists (IAM) joined in the calls for driver to lower their speed, particularly in 30mph areas, where motorists often creep up above the limit with fatal consequences.
IAM chief executive Christopher Bullock said: 'That extra five or six mph doesn't feel very fast when you are behind the wheel. And frankly, it will make little difference to your overall journey time. But if you hit a child at that speed, it could literally mean the difference between life and death.'
The week was launched by Crimewatch presenter and road safety campaigner Nick Ross in London, who travelled to Downing Street to present a 'stop speeding manifesto', and by actor Ricki Tomlinson in Liverpool.