Sonar: How can mobile enable location-based serendipity – with co-founder Brett Martin

Can you create serendipity from your social network based on your location? Can you use all these great tools like LinkedIn, Foursquare, Facebook and Twitter on the road and to create new – but related – contacts? Is there a value in connecting people who happen to be in one location over a smartphone?

Sonar believes the answer is yes and they are proving it today.

Sonar is a mobile application that allows you to know who is around you – in the same location or nearby – all using your existing social graph, all from a mobile device.

Brett Martin, co-founder and CEO, walks us through how they identified the opportunity, why they thought this business was necessary, how connections are made today, how they plan on generating revenue, what their business model is and will be, and what some of the more interesting serendipitous events have happened as a result of using Sonar.

My favorite piece of advice from Brett is simple and true: “The best mobile app is a mobile app that you open it up, press a button and hot chicks or money comes jumping out of the bushes.”

If you are trying to understand what is at the termination point of social, local and mobile, the Sonar story is a perfect place to start.


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About Brett Martin

Brett Martin

Brett Martin is co-founder and CEO of Sonar, a new location-based mobile application that leverages social network data to reveal hidden connections and interests you share with the people nearby. Prior to Sonar, Brett helped found K2 Media Labs, a New York-based seed stage mobile incubator, and AppFund, K2’s investment arm. Before K2, he studied strategic resource allocation in early stage startups as a Fulbright Scholar in Milan. He also helped launch Vice Magazine’s web presence,, and worked on Wall Street as an equity research associate. Some other things Brett is proud of include: teaching himself Ruby, going to Dartmouth, getting published by Harvard Business, founding a rock band, starting a non-profit, and sailing 6,000 miles in a 30ft ketch.

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About the author

Rob Woodbridge

I'm Rob, the founder of and I've spent 14 years immersed in the mobile and pervasive computing world. During this great time I've helped some of the most innovative companies grow their business through mobile. If you are in need of a mobile business advisor or coach, connect with me here to get things rolling.

  • Thanks again for including us Rob!  It was great chatting with you.

    Brett from Sonar

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