Cornerstone Reviews

3.6

68% would recommend to a friend

(38 total reviews)

70% positive business outlook

Cornerstone has an employee rating of 3.6 out of 5 stars, based on 38 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Cornerstone employee rating is in line with the average (within 1 standard deviation) for employers within the Information Technology industry (3.9 stars).

Reviews by job title

38 reviews
4.0
19 Feb 2026

BDR

Recommend
CEO approval
Business outlook

Pros

Nice people. Friendly and very inclusive of all religions

Cons

If you work for the wrong manager, it could be difficult to change

1.0
6 Feb 2026
Recommend
CEO approval
Business outlook

Pros

It looks like a great company — until the honeymoon period ends a month or two in.

Cons

They promote their “culture,” yet behind the scenes it’s filled with drama and gossip. Some managers display strong narcissistic tendencies. If you care about protecting your career, seriously consider staying away. The mobile tower business is declining regardless.

2.0
30 Jul 2025
Recommend
CEO approval
Business outlook

Pros

Good location and good healthcare benefits etc. Nice office space and near to everything.

Cons

Little to no development , poor management and subtle bullying , Chinese whispers culture. Things not handled professionally.

Viewing 1 - 3 of 38 Reviews

Glassdoor has 41 Cornerstone reviews submitted anonymously by Cornerstone employees. Read employee reviews and ratings on Glassdoor to decide if Cornerstone is right for you.