Onsite Computer Consulting - Computer Paramedic

4.9(111 reviews on Google)

Managed IT Service listing in O'Fallon, MO

About Onsite Computer Consulting - Computer Paramedic

Onsite Computer Consulting Services, known as OCCSI, is a Wentzville managed IT provider founded in 1994 and working from Wentzville since 1999. It specializes in dental practices and small businesses. Remote and onsite support are both offered, with 24/7/365 remote help, requests answered within 15 minutes or less and a stated average resolution time of 29.5 minutes. Security work includes 24/7 monitoring, SIEM, firewall management, endpoint protection, penetration testing and anti-phishing training, with compliance support for HIPAA, PCI and NIST. Other services are backup and disaster recovery, Microsoft 365 and Azure cloud work, vCIO services and IT audits. One dental practice client wrote that the team is the only IT company it has used and highly recommended it. Rated 4.9 from 111 Google reviews, 107 of them five stars.

What reviewers mention: laptop repair (9), quick turnaround (7), thorough staff (5), data recovery (4), quick diagnosis (3), clear explanations (3), hard drive replacement (2), virus removal (2), device security (2), no charge (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
9AM-5PM
Tuesday
9AM-5PM
Wednesday
9AM-5PM
Thursday
9AM-5PM
Friday
9AM-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.