Platinum Systems

5.0(1 review on Google)

Managed IT Service listing in O'Fallon, MO

About Platinum Systems

Platinum Systems has provided managed IT and cybersecurity since 1997 and was founded in Kenosha, Wisconsin, so confirm its service area before relying on it for work in O'Fallon. It either handles a client's whole technology environment or works alongside an internal IT team. Security services include endpoint detection and response, DNS filtering, penetration testing and a managed security operations center. A dedicated vCIO and a Technology Alignment Manager guide strategy. Clients span manufacturing, professional services and nonprofit sectors, and some have stayed for over a decade. Rated 5.0 from one Google review.

Services and details

  • Managed IT services

    Yes
  • Managed cybersecurity

    Yes
  • Co-managed IT

    Yes
  • IT planning (vCIO)

    Yes
  • Named industries

    Yes

No information yet on 24/7 help desk, stated response time, on-site support, compliance support, backup and disaster recovery, microsoft 365 and cloud, flat-rate pricing, no long-term contract. The website did not say; call and ask.

Contact

Hours

Monday
7:30AM-5PM
Tuesday
7:30AM-5PM
Wednesday
7:30AM-5PM
Thursday
7:30AM-5PM
Friday
7:30AM-5PM
Saturday
Closed
Sunday
Closed

Listing compiled from public sources on 2026-11-11. Report a correction or request removal. Back to managed IT providers in O'Fallon.