Onsite Computer Consulting Services Inc

4.2(5 reviews on Google)

Managed IT Service listing in St. Louis, MO

About Onsite Computer Consulting Services Inc

Onsite Computer Consulting Services, known as OCCSI, delivers managed IT to St. Louis businesses and promises a technician working on an issue within 15 minutes, with an average resolution time of 29.5 minutes. Remote support runs 24/7/365 with proactive monitoring. Onsite IT support, server administration and VoIP sit alongside cybersecurity that includes SIEM, firewall management, penetration testing, endpoint protection, anti-phishing training and compliance support. Backup and disaster recovery, vCIO services, IT audits, and Microsoft work covering Teams, Office 365, SharePoint, Azure and cloud migration round out the list. A dental practice owner writes in a client review that OCCSI has been the only IT company the practice has used. Rated 4.2 from 5 Google reviews, 4 of them five stars.

What reviewers mention: knowledgeable team (2), cybersecurity (2), threat protection (2)

Services and details

  • Managed IT services

    Yes

  • 24/7 help desk

    Yes

  • Stated response time

    Yes

  • On-site support

    Yes

  • Managed cybersecurity

    Yes

  • Compliance support

    Yes

  • Backup and disaster recovery

    Yes

  • Microsoft 365 and cloud

    Yes

  • IT planning (vCIO)

    Yes

  • Named industries

    Yes

No information yet on co-managed IT, flat-rate pricing, no long-term contract. The website did not say; call and ask.

Contact

Hours

Monday
Open 24 hours
Tuesday
Open 24 hours
Wednesday
Open 24 hours
Thursday
Open 24 hours
Friday
Open 24 hours
Saturday
Open 24 hours
Sunday
Open 24 hours

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