NSF reviews

2.7

42% would recommend to a friend

(521 total reviews)
avatar

Pedro Sancha

35% approve of CEO

40% positive business outlook

NSF has an employee rating of 2.7 out of 5 stars, based on 521 company reviews on Glassdoor which indicates that most employees have an average working experience there. The NSF employee rating is 27% below average for employers within the Management & Consulting industry (3.7 stars).

Reviews by job title

521 reviews
4.0
Jan 8, 2026
Recommend
CEO approval
Business Outlook

Pros

Lot to learn from NSF. Good work environment.

Cons

Need to have a better work life balance. Need better transparency from Management on direction of the Company.

1.0
Jan 5, 2026
Recommend
CEO approval
Business Outlook

Pros

None, a toxic workplace is not worth it

Cons

A newly hired director of toxicology has managed to turn this into the worst place I have ever worked in an astonishingly short amount of time. Her leadership is openly fear-based, condescending, and riddled with poor communication and blatant favoritism. Expectations changed constantly, were rarely communicated clearly, and were enforced through rude remarks and everyday belittling rather than actual guidance. Work-life balance has ceased to exist, stress is constant, and misery is now the default team culture. That’s not to mention mental health has plunged. People have stopped collaborating or doing their best work and focused solely on survival or avoiding becoming the director’s new target for her condescension and hostility. I actively dread work every day and am trying to GET OUT

2.0
Dec 16, 2025
Recommend
CEO approval
Business Outlook

Pros

Most people are great and want to see the company succeed

Cons

Leaders are so desperate to find a solution to the company’s problems… HR is also terrible

Viewing 19 - 21 of 521 Reviews

Glassdoor has 639 NSF reviews submitted anonymously by NSF employees. Read employee reviews and ratings on Glassdoor to decide if NSF is right for you.