Fundraising companies will be able to register with the Fundraising Regulator from today.
Charities that spend more than £100,000 a year on fundraising were asked last year to pay a levy of between £150 and £15,000 a year to join the voluntary scheme, depending on their annual spend on fundraising. The vast majority have done so.
Now commercial fundraising organisations have been urged to do the same. In a statement, the regulator said the move was "part of our wider commitment to ensuring high standards across the fundraising community".
Fundraising agencies, direct marketing agencies, online donation sites, payroll-giving organisations and commercial clothing collectors are among those targeted.
They will be invoiced according to annual turnover, using the same bandings that apply to charities.
Organisations that register are entitled to use the regulator's "Registered With" logo on fundraising materials to demonstrate their support of good practice and of the regulator's fundraising promise.
Companies can apply for registration using an online form on the regulator's website.