Quantinuum Reviews

3.7

71% would recommend to a friend

(57 total reviews)

Ilyas Khan and Rajeeb Hazra

62% approve of CEO

67% positive business outlook

Quantinuum has an employee rating of 3.7 out of 5 stars, based on 57 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Quantinuum 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

57 reviews
3.0
4 June 2026
Recommend
CEO approval
Business outlook

Pros

High Tech company. Good work-life balance.

Cons

1/10 for loyalty. After Being with them for nearly 7 years, they shut down the Cyber Security department, makeing the entire team redundant. Firstly, a silly business decision in this time of Quantum Origin and PQC. Failed by poor leadership, poor management and poor foresight. Poor and blinkered vision. Secondly, zero compassion, zero appreciation for loyalty. The department head engineered his own promotion, and then, from his pedestal, sunk his own ship. Beware of the Applications Group.

4.0
6 Feb 2026

Good science and performance, questionable leading

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

Interesting problems, real science, nice colleagues

Cons

Insufficient job security, too much pressure that is grounded in commercial interests rather than technical milestones.

Viewing 1 - 3 of 57 Reviews

Glassdoor has 67 Quantinuum reviews submitted anonymously by Quantinuum employees. Read employee reviews and ratings on Glassdoor to decide if Quantinuum is right for you.