When it comes to volunteering, all hands are on deck at this Huntsville, Ala.-based engineering firm. Through a company-wide drive last Thanksgiving, employees donated more than 3,600 boxes of macaroni, stuffing, and potatoes to a local homeless shelter. “Everyone wants to be involved,” says Christine Schaefer, intelligence, securities, and facilities officer. “We get an overwhelming response from employees.” Read the Great Place to Work review here. Also read: This Engineering Firm Has Never Had Any Openings—Or Layoffs