The Prince of Wales will address business leaders tonight as he is joined by his two sons to honour "responsible" companies at London's Royal Albert Hall.
Charles, who is president of the Business in the Community (BITC) charity, will attend the Responsible Business Awards gala dinner along with the Duke of Cambridge and Prince Harry.
Some 1,400 guests will gather for the event which is being hosted by comic David Walliams and Sky Sports presenter Natalie Pinkham and will feature performances by the Military Wives Choir and poet George Mpanga.
William and Harry are attending this year's event to recognise work being done by businesses to provide employment for ex-military personnel.
Charles will deliver a keynote speech in which he is expected to highlight the importance of creating training and job opportunities for former service personnel as well as for young, disabled and unemployed people.
A Clarence House spokeswoman said: "For more than 30 years, the Prince of Wales has believed that being a responsible business goes far beyond the financial bottom line.
"Through his charity, Business in the Community (BITC), established in 1982, His Royal Highness seeks to help businesses recognise their wider role in society and how they can help to tackle some of our most pressing social and environmental issues."
The royals will meet Captain Anthony Harris, a former Royal Fusilier and the founder of Race2Recovery, an off-road racing team that gives disabled people the chance to take part in motor sport.
The team became the world's first and only combat-injured motor sport team to twice enter and complete the Dakar Rally, following support from William and Harry's Endeavour Fund and sponsorship from Jaguar Land Rover, the winner of BITC's Responsible Business of the Year 2013.
Dr Ralf Speth, chief executive of the Responsible Business Awards, will announce an extension to the Invictus Games traineeship programme to prepare ex-service personnel for manufacturing job opportunities.
Charles will also reveal the new Prince's National Ambassador for Responsible Business, who will work with regional ambassadors to encourage responsible business practices across the UK.
The awards, which celebrate companies that show innovation, creativity and a sustained commitment to corporate responsibility, are presented across 13 categories including the Responsible Business of the Year 2014.