The organisation, set up in May to create a direct route for the private sector to work with schools, is giving brands in sectors from banking to travel the chance to reach the 45% of the population directly linked to schools.
Mark Fawcett, chief exe-cutive of AccessAbility, the company that runs NSP, said that each partner must prove its ethical and quality credentials.
The selected brands will be promoted through National Schools Partnership magazine, which is planning to increase its reach from 500,000 to 2m households next year. Partner companies and products can also use the NSP stamp as a promotional tool.
Extracurricular projects and workshops will form part of the programme.
Fawcett acknowledged that marketing to children is a 'hot topic', but insisted that the organisation had not come under fire for seeking to link brands with schools.
'Schools want to engage with businesses but don't know how. This partnership gives them the opportunity to choose which brands they want to work with,' he said.
Photo processing firm Truprint has already signed up to the programme, providing online photo albums for schools and photo clubs.
The programme has so far signed up 350 schools and has been endorsed by the National Primary Headteachers Association, which has 9000 member schools.