The World Economic Forum's prestigious annual selection of promising entrepreneurs reveals the diversity of global innovation

• Meet the Tech Pioneers of 2011

  Each year the World Economic Forum recognizes small companies whose innovations could help change the world. This year's crop is the most diverse ever

• Slide Show: Tech Pioneers of 2011

  Meet 31 innovative startups selected by the World Economic Forum for their potential impact on technology, health, the environment, and human welfare

• Layar: Augmenting Reality via Smartphone

  The Dutch startup is a pioneer in the emerging field of augmented reality, which delivers location-based multimedia information and ads to users' phone screens

• Novacem: Cement That Eats Carbon

  The construction materials industry emits gobs of carbon dioxide, but a British startup has devised a new cement that absorbs and stores CO2 when it's produced

• Neuronetics Uses Magnetism to Lift Depression

  Pennsylvania startup Neuronetics has commercialized the treatment of depression with electromagnetic pulses. The FDA has approved

• NetQin Nails Security for Mobile Phones

  Spam, viruses, malware, phishing: They're not just for PCs anymore. China's NetQin helps stamp out security threats on handsets, with help from its users

• TaKaDu Saves Water with Data Crunching

  Israeli startup TaKaDu uses software analysis to monitor water and wastewater systems for leaks and other faults, saving utilities a bundle

• Special Report: 2010 Tech Pioneers

  The annual selection of promising entrepreneurs by the World Economic Forum highlights stars in the making

• Special Report: 2009 Tech Pioneers

  From food and drug safety to mobile commerce and energy innovations, this year's selection of Tech Pioneers by the World Economic Forum is full of bright ideas

• Special Report: 2008 Tech Pioneers

  The World Economic Forum's annual selection of potentially game-changing inventions by entrepreneurs around the world finds plenty of IT, medical, and energy breakthroughs

• Business Exchange: Davos World Economic Forum

  The Geneva-based WEF conducts dozens of studies and events each year, including the Tech Pioneers. But nothing matches the impact of its annual meeting in Davos, Switzerland

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