15 Jun 2026
GBM Reviews
56% would recommend to a friend
56% positive business outlook
GBM has an employee rating of 3.4 out of 5 stars, based on 109 company reviews on Glassdoor which indicates that most employees have a good working experience there. The GBM employee rating is in line with the average (within 1 standard deviation) for employers within the Finance industry (3.7 stars).
Reviews by job title
109 reviews