Penumbra reviews

3.2

58% would recommend to a friend

(410 total reviews)

Adam Elsesser

70% approve of CEO

53% positive business outlook

Penumbra has an employee rating of 3.2 out of 5 stars, based on 410 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Penumbra employee rating is in line with the average (within 1 standard deviation) for employers within the Manufacturing industry (3.5 stars).

Reviews by job title

410 reviews
1.0
Feb 6, 2026

Toxic environment to work

Recommend
CEO approval
Business Outlook

Pros

Some good people work there

Cons

Leadership (from the top) don't care about most of their people these days, just looking good to their shareholders. The clique of original senior leaders follows the CEO like minions.

1.0
Feb 3, 2026
Recommend
CEO approval
Business Outlook

Pros

High-volume experience, but at a devastating cost to your mental health.

Cons

The Training Department culture is characterized by strong-arm management practices and systemic gaslighting. Suppression of Positive Feedback & Gaslighting Employees can expect consistent undermining. Feedback is overwhelmingly negative, with little to no acknowledgment of positive performance. Even when peer feedback or course evaluations are highly favorable, leadership focuses exclusively on “improvements,” creating an environment designed to keep employees off-balance and erode confidence. Coerced Performance Reviews Annual review processes are handled in a coercive manner. Employees who question or request time to review their evaluations are pressured to sign immediately, with implicit or explicit threats related to job security. This practice appears intended to silence dissent and establish questionable documentation rather than foster fair performance discussions. Protected Toxicity Leadership has communicated that certain long-tenured supervisors are effectively “untouchable,” regardless of reported concerns about bullying or unprofessional behavior. This creates an environment where toxic conduct is tolerated and accountability is unevenly applied. Lack of Recognition & Mismanaged Engagement Efforts The Training team receives minimal appreciation compared to other departments. Engagement budgets appear underutilized or mismanaged, resulting in sparse and low-effort recognition. Even basic morale initiatives, such as welcoming new hires, are delayed or consolidated in ways that feel dismissive. Surveillance Culture & Peer Sabotage The department operates within a “fake nice” culture where collegiality feels performative. Informal conversations are monitored, and peer feedback mechanisms are used punitively rather than constructively, discouraging trust and collaboration. Two-Faced Leadership & Ineffective HR Support Management presents as supportive on the surface, encouraging openness, but later uses employee disclosures against them. HR does not function as a neutral resource and instead appears to protect leadership rather than address harmful practices.

Viewing 7 - 9 of 410 Reviews

Glassdoor has 447 Penumbra reviews submitted anonymously by Penumbra employees. Read employee reviews and ratings on Glassdoor to decide if Penumbra is right for you.