Here are eight startups developing technological solutions to global urban problems

An artist's impression of Green City Solutions' City Tree in action in Paris. Image: Green City Solutions.

Across the world, the accelerating wave of urbanisation is contributing to greater, more complex challenges for cities that require an urgent response.

Air pollution, to take one example, is choking cities and citizens, a growing problem across the developing world and in burgeoning cities in developed nations. The World Health Organization warns pollution is causing millions of premature deaths, urging action including more green spaces in cities.

One innovative startup in Berlin, GreenCity Solutions, has built a revolutionary urban air filter – The City Tree – combining air purifying, specialized-moss cultures and the latest in Internet of Things (IoT) technology. The storey-high, free standing and largely self-sustaining CityTree packs the air filtration power of 275 trees into a tiny fraction of the space and maintenance cost.

In cities around the globe, startups and social enterprises are developing inventive, technology-driven solutions to tackling urban challenges. GreenCity Solutions is one of these game-changing companies, and has been recognized as a Global Urban Innovator by the NewCities Foundation, an international nonprofit dedicated to making cities connected, inclusive, healthy and vibrant.

The Global Urban Innovators program is designed to recognse innovative young companies that are reimagining new solutions from the ground up – and in effect, shaping the cities of tomorrow.

The 2017 Class of Global Urban Innovators, announced on 2 May, is global in scope and features technological solutions and products that are leveraging IoT, artificial intelligence, and cutting-edge data production and analysis to improve everyday life for residents of cities and enhance the life of the city itself.

The innovations that enhance the human experience range from Green City Solutions’ clean air creating technology to Safetipin, a mobile app created in the Indian city of Gurgaon,  that crowdsources and relays public security information. Safetipin recently completed a street safety audit for New Delhi, including data from over 60,000 users, while at the same time offering digital tools for ensuring a safe trip home for women across the city.

Others improve our experience traveling in cities, such as Songdo-based Alt-A, a sensor technology and data-crunching effort to make the streets safer through alert systems, and 3D-mapping analytics of vehicle-human traffic flows. In San Francisco, Spin is reimagining bikesharing with a fleet of GPS-equipped smart bikes that are unlocked using a mobile app and can be dropped off at any bike parking spot.

Cape Town-based WhereIsMyTransport, an open platform providing a detailed look at formal and informal public transport options in African cities, both improves experience for users and provide emerging cities with crucial transportation data for better planning.

“We believe in the potential of reliable and openly available public transport data to empower and transform emerging cities,” says Devin de Vries, co-founder of WhereIsMyTransport. “Our technological solutions make this possible.”


Meanwhile, innovators are also leveraging technology to tackle problems that affect the life of the city itself, at operations level, street level and delivery of services. Where cities everywhere continue to struggle with effective public consultation, ZenCity, in Tel Aviv, is showing how Artificial Intelligence can unlock new opportunities for digital engagement, capturing residents’ perceptions of the city across social media, the web and traditional channels such as 311 calls. 

And Small Change is creating large changes in the way Pittsburgh connects much needed finance for high-impact neighborhood urban development projects through equity crowdfunding.

IoT technology is also creating opportunities to reimagine how cities deliver their most essential services. Paris-based CityTaps partners with city utility companies and, through smart water meters and mobile money, is making the case for equitably delivering urban utilities. 

“Our vision is to bring running water to every urban home in the developing world,” says Grégoire Landel, CEO of CityTaps. “With access to water, public health is greatly improved while saving time and money for the urban poor.” 

In cities around the world, urban innovators are seizing the potential of emerging technologies, as well as the need to collaborate with those driving innovation. The Global Urban Innovators count among the most promising and most advanced projects anywhere. 

These forward-thinking entrepreneurs will take the stage at the NewCities Summit – the NewCities flagship event – in Incheon Songdo, South Korea from 7-9 June, where a global community of experts will delve into the new realities facing today’s cities with a focus on the theme Thriving Cities: The Building Blocks of Urban Wellbeing

The wider implications of the disruptive use of technology bring to the forefront this urban era’s most important questions and, possibly, some innovative answers. Exploring these questions and their impact on the city through the eyes of today’s innovators themselves will be crucial for building urban well-being in the years and decades to come.

Thomas Ledwell is director of communications, and Adam Cutts research coordinator, at NewCities.

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Brexit is an opportunity for cities to take back control

Leeds Town Hall. Image: Getty.

The Labour leader of Leeds City Council on the future of Britain’s cities.

As the negotiations about the shape of the UK’s exit from the EU continue, Britain’s most economically powerful cities outside London are arguing that the UK can be made stronger for Brexit – by allowing cities to “take back control” of service provision though new powers and freedoms

Core Cites UK, the representative voice of the cities at the centre of the ten largest economic areas outside London, has just launched an updated version of our green paper, ‘Invest Reform Trust’. The document calls for radical but deliverable proposals to allow cities to prepare for Brexit by boosting their productivity, and helping to rebalance the economy by supporting inclusive economic growth across the UK.

Despite representing areas responsible for a quarter of the UK’s economy and nearly a third of exports, city leaders have played little part in the development of the government’s approach to Brexit. Cities want a dialogue with the government on their Brexit plans and a new settlement which sees power passing from central government to local communities.

To help us deliver a Brexit that works for the UK’s cities, we are opening a dialogue with the EU Commission’s Chief Negotiator Michel Barnier to share our views of the Brexit process and what our cities want to achieve.

Most of the changes the Core Cities want to see can already be delivered by the UK. To address the fact that the productivity of UK cities lags behind competitors, we need to think differently and begin to address the structural problems in our economy before Brexit.

International evidence shows that cities which have the most control over taxes raised in their area tend to be the most productive.  The UK is significantly out of step with international competitors in the power given to cities and we are one of the most centralised countries in the world.  


Boosting the productivity of the UK’s Core Cities to the UK national average would increase the country’s national income by £70-£90bn a year. This would be a critical boost to the UK’s post-Brexit economic success.

Our green paper is clear that one-size fits all policy solutions simply can’t deal with the complexities of 21st century Britain. We need a place-based approach that looks at challenges and solutions in a different way, focused on the particular needs of local communities and local economies.

For example, our Core Cities face levels of unemployment higher than the national average, but also face shortages of skilled workers.  We need a more localised approach to skills, education and employment support with greater involvement from local democratic and business leaderships to deliver the skills to support growth in each area.

The UK will only make a success of Brexit if we are able to increase our international trade. Evidence shows city to city networks play an important role in boosting international trade.  The green paper calls for a new partnership with the Department of International trade to develop an Urban Trade programme across the UK’s cities and give cities more of a role in international trade missions.

To deliver economic growth that includes all areas of the UK, we also need to invest in our infrastructure. Not just our physical infrastructure of roads, rail telecommunications and so forth, but also our health, education and care infrastructure, ensuring that we are able to unlock the potential of our core assets, our people.

Whether you think that Brexit is a positive or a negative thing for the UK, it is clear that the process will be a challenging one.  Cities have a key role to play in delivering a good Brexit: one that sees local communities empowered and economic prosperity across all areas of the UK.

Cllr Judith Blake is leader of Leeds City Council.