Girlguiding Scotland is launching its first Scotland-wide fundraising appeal, signalling a departure from using localised initiatives.
The youth charity aims to raise £5 million over the next three years through the campaign, which has been called the "The Big G" to represent "giving for girls and guiding".
The appeal marks a substantial departure from the movement's tradition of relying mainly on membership subscription supplemented by small-scale government and local authority funding.
The campaign is part of a modernisation programme adopted last year, which saw a new web site, www.girlguidingscotland.org.uk, launched last month.
Girlguiding Scotland plans to raise the funds through direct personal giving from the public and members, grant and trust funding, and membership events.
"The key is that we are being proactive," said Carrie Blake, corporate affairs manager at Girlguiding Scotland. "We will be putting on lots of events, including a pro-am golf tournament and other special appeals."
The campaign follows a major strategic review that prompted Girlguiding Scotland to expand its work by developing the facilities at its Netherurd training centre, improving its communications and offering girls more opportunities to get involved in their communities. Additional external funding was essential for the expansion.
"Girlguiding has an outstanding reputation for raising money for other charities, and the time came to focus and concentrate on our own work," said Blake.
The money raised from The Big G campaign will be used to build a bigger Brownie house at the Netherurd training centre in the Borders so that more girls can take part in residential trips.