Through an ISO® 9001:2015 Certified Quality Management System (QMS), Walden Security has earned an award-winning reputation f ... or business excellence and employee satisfaction through the delivery of contract security guard services to commercial properties, government facilities and residential communities. The 7th largest security firm in the nation with $300 million in annual revenues, the WBENC-Certified Women’s Business Enterprise (WBE) employs more than 6,000 armed and unarmed security professionals across 30 states. Walden Security is ranked among Inc. Magazine’s America’s Fastest Growing Companies. read more