Booz Allen Hamilton has an employee rating of 3.9 out of 5 stars, based on 10,444 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Booz Allen Hamilton employee rating is in line with the average (within 1 standard deviation) for employers within the Information Technology industry (3.7 stars).
BAH is a goal oriented company with excellent business acumen at all levels of management. The produce results that endure and stand behind their work. Their ability to "reach back" within company assets to formulate proposals and generate sound business solutions is the best I have experienced. They are constantly updating their company policies to better administer to their clients and ensure their client information is secure...and that all employees are aware of the changes.
Cons
Over the past 5 years, since they sold out to the Carliel Group they have transitioned through numerous administrative and internal corporate policy directives. One such example is the annual assessment of employees; I believe the older way of evaluating an employees performance was better, but the current policy is less time intensive for those performing the assessments.