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      3SI Security Systems

      Engaged employer

      3SI Security Systems reviews

      Where Careers Go To Die - Anonymous employee 3SI Security Systems Employee Review

      1.0
      Feb 20, 2026
      Anonymous employee
      Recommend
      CEO approval
      Business outlook

      Pros

      None of the paychecks bounced

      Cons

      Toxic work environment, poor management, dead end job, no career pathing, no opportunities for career growth, favoritism, horrible benefits

      Explore other reviews about 3SI Security Systems

      5.0
      Oct 10, 2022
      Internship
      Recommend
      CEO approval
      Business outlook

      Pros

      Everyone that worked there was amazing and so friendly. The job provided so much hands on job experience. I was included in relevant discussions and issues.

      Cons

      I dont really have any cons from my time there.

      1.0
      Jun 9, 2026
      Anonymous employee
      Recommend
      CEO approval
      Business outlook

      Pros

      Newly renovated office in PA

      Cons

      Leadership needs to be more engaged

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