A DESIGN agency based in Huddersfield is backing efforts to raise £250,000 for the charity which helped get it off the ground.
Attik, of Fitzwilliam Street, has designed the brochure for a charity auction being held by the Prince's Trust.
The trust, headed by the Prince of Wales, helps young people better their lives.
Attik founders James Sommerville and Simon Needham received a £1,000 grant and practical advice from the trust to get their business started in 1986.
Since then, the agency - which began in the attic at the home of James' grandmother - has grown to have offices in Huddersfield, New York, London, Sydney and San Francisco.
It employs 80 people and has annual sales of £10m a year.
Attik has given £40,000 worth of work by producing the brochure. It is hoped the auction will raise £250,000 for the trust.
The 120 lots include a painting by Prince Charles and a limited edition Mercedes Benz SL 55.
Other lots include a luxury two-bedroom flat and tea for two at the House of Lords.
Bids must be submitted by post by Thursday this week.
Mr Needham said: "It took years to achieve our success - but we owe Prince Charles and the trust much of what we have today."
The trust aims to raise £5m to pay for its work in the region over the next five years.
Fundraising chairman Richard Jackson said: "The auction brochure will help us to reach this target, so we can continue to help more young people who need a helping hand to achieve success."
This year, the trust in Yorkshire aims to help 400 young people start up in business; help 500 young people improve their performance at school and help 400 others into education or work.