Google, Apple, Microsoft, Facebook and Amazon: These juggernauts are at the forefront of the tech industry. And with that success comes an ever-expanding workforce, and the need for a place to put them. To keep pace with growth, these companies have been making the requisite real-estate deals in order to build physical spaces to match their forward-thinking business approach. Fortunately, their designs are also more environmentally conscious than ever before. With the eyes of the world upon them, they've taken the well-being of the Earth, as well as their employees, into account, building innovative work spaces in an attempt to harmonize with the world around them. Below, we take a look at some of the steps these giants of industry have made over the years as they've moved from garage operations to vast campuses.