If you've ever booked corporate travel, chances are you've dealt with Fugazy. Located at 62 Southfield Ave., its small-yet-efficient Stamford office is just one of the many reasons it's the world's largest travel agency (along with 2,200 other offices in 140 countries). Owned by avid traveler and travel writer Yvonne S. Boice, Fugazy partners with American Express to offer travel services to numerous corporations. Customers can visit the agency's website for information on flights, hotels, cars, cruises, AmEx vacations and last-minute specials.