Across the world, young people are shaping the future in many fields. Their ideas are transforming communities and society. Here's a look at the achievements of four inspirational young leaders.

Kwiri Yang

Kwiri is the founder and CEO of LifeGyde, an online platform for young people to seek advice, guidance and support. She has an impressive track record of supporting individuals and small businesses.

She first helped immigrant owners of small businesses in California. When she developed anxiety and depression, Kwiri realized how many people, like her, were struggling with their mental health — and LifeGyde was born.

Abi Ramanan

Abi is the co-founder and CEO of ImpactVision, a software platform that uses machine learning to reduce food waste.

ImpactVision's technology uses digital imaging to take a picture of food and analyze its nutritional value and freshness. The system aims to reduce waste while also improving food safety. As technology advances, the sensors it uses are reducing in size and price, and could soon be integrated into everyday devices.

Oana Toiu

Oana is the founder and general manager of Social Innovation Solutions, which offers training and consultancy in social innovation.

She's also on the Board of Directors of The Entrepreneurship Academy, where students work in teams, learning about business by running real businesses under the guidance of a team coach.

Doreen Kessy

Doreen is CEO of Ubongo, a multi-media educational platform in Africa. Using the power of entertainment and mass media, the company provides educational material at low cost and high volume.

Some 6.4 million households in 31 countries currently watch, listen and learn from Ubongo's cartoons each week, with improved outcomes in maths and school readiness.