Sigma-Aldrich: Your one stop shop to work for nothing until you drop - Chemist MilliporeSigma Employee Review

1.0
9 Feb 2009
Recommend
CEO approval
Business outlook

Pros

Its a good stepping stone to learning about the chemical industry and thats it. They do have some very brilliant minds working there; however, due to consistent bull advanced scientists leave for greener pastures and less headache. Get your experience, slap it on a resume, and get the hell out of there.

Cons

12 hour swing shifts. Kiss your personal life good-bye. Not to mention weekly meetings which were usually out of shift. I'd say I spent a good 50+ hours a week there minimum at times. Collaboration between production/research buildings was a burden. Finding parts and materials to begin even the smallest of synthesis was at times a several hour journey, where virtually no one knew where reactor parts were or management constantly failed to order replacement pieces a head of time. Unless the building was brand new most of the equipment was antiquated, repaired so many times its "fixed" state was just above disrepair, ...I really could go on and on. To top it off chemical drums that weren't temperature or photo sensitive were kept in what could be described as a shanty (wooden supports with sheet metal). Corrosion had become an issue, though infrequently. (although I wouldn't want a single drop of something like methylene chloride, THF, etc. to get into the agricultural water system located near by) With all that was going on, broken pressure valves, OR sensors damaged/ offline on main production reactors, non-functional halon fire suppression systems, grossly inadequate air quality/ventilation... sorry to say Pro III is a major human/ecological accident waiting for a place to happen. The difference in pay of what any form of management position versus anything under is astronomical. Senior chemists/ scientists were making less than the jokers that managed Production 3 in Sheboygan, who had been there for a much shorter time. All managers, save one, were self concerned and only cared about the bottom line. The moron that I had to work under more-or-less spent his time reading about the Green Bay Packers and staring at his keyboard. It must be nice making ~$70k a year keeping your chair warm. When I started I was proud to be a part of a company of this magnitude, yet as I left it was the greatest relief of my career. I would NEVER recommend a company where the bottom line is more important than human welfare. It honestly was the most depressing and life draining place I have ever worked. Most people, fellow chemists, operators, and scientists were genuinely good people where all were tired, all had much to gripe about, and most looking for a way out.

Explore other reviews about MilliporeSigma

5.0
15 Apr 2026
Anonymous employee
Recommend
CEO approval
Business outlook

Pros

Great work life balance. Great company benefits and great culture.

Cons

Kind of Hard to get promotion,

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MilliporeSigma Response
2mo
Thank you for taking the time to share your experience at MilliporeSigma. We are pleased to read that you value the work life balance, benefits and the culture. Your point about promotions feeling difficult is important. Career growth should be transparent and supported by regular, concrete conversations. We encourage you to discuss your development goals and next steps with your manager and HR, and to use the MyGrowth platform to explore opportunities, skills building and potential career paths within the organization. Feedback like yours helps us continue strengthening how we enable internal mobility and progression.
3.0
15 Jun 2026
Recommend
CEO approval
Business outlook

Pros

Some managers were exceptional mentors and played a significant role in my professional growth. Good benefits and a reasonable severance package during workforce reductions. Opportunities to work on large-scale marketing initiatives and collaborate with experience professionals across the organization and globe.

Cons

Advancement opportunities often felt inconsistent and lacked any transparency. Leadership frequently emphasized data-driven decision making, but business decisions did not always appear to align with the metrics being presented. The company appeared hesitant to embrace emerging technologies and AI-driven approaches, limiting innovation in multiple areas. Job security is uncertain, and organizational changes occur frequently with little warning. Management quality varied significantly, While some leaders were outstanding, others struggled with communication, strategic direction, and people management. Career growth seemed to depend heavily on organizational politics and alignment with leadership rather than solely on measurable performance.

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