It’s been four years since Eli Portnoy founded Thinknear, a company that produces location-based advertising technology, which was sold to Telenav for $22.5 million back in 2012, and now his latest company is on the road to being just as successful. Known as Sense360, Portnoy’s startup just raised $2.75 million in funding to help app developers take advantage of the sensors that so many smartphones have equipped nowadays.