NSF reviews

2.7

40% would recommend to a friend

(523 total reviews)
avatar

Pedro Sancha

33% approve of CEO

43% positive business outlook

NSF has an employee rating of 2.7 out of 5 stars, based on 523 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

523 reviews
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

1.0
Dec 15, 2025

NSF has lost its way

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

The organization’s mission has historically been meaningful, and for many years I worked alongside committed employees who genuinely cared about the work and each other.

Cons

I was a tenured employee who experienced several restructures over my time with the company. In my experience, the most recent restructure—following changes in executive leadership—was the most challenging and had the greatest negative impact on culture. Since that transition, leadership decisions at the executive and Senior Leadership Team (SLT) level contributed to what I experienced as an increasingly toxic and high-pressure work environment. The organization became heavily focused on revenue and micromanagement, often at the expense of employee development, trust, and the company’s stated mission. Additionally, SLT introduced a “Courageous Leadership” program that, in practice, created pressure for managers to rate employees lower during performance reviews. This approach limited raises and bonuses, even for employees who met or exceeded their goals, which was demoralizing and eroded morale and trust.

Viewing 22 - 24 of 523 Reviews

Glassdoor has 641 NSF reviews submitted anonymously by NSF employees. Read employee reviews and ratings on Glassdoor to decide if NSF is right for you.