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.
Services and details
Managed IT services
Yes24/7 help desk
YesStated response time
YesOn-site support
YesManaged cybersecurity
YesCompliance support
YesBackup and disaster recovery
YesMicrosoft 365 and cloud
YesIT planning (vCIO)
YesNamed 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
- (636) 332-1335
- 251 E Pearce Blvd, Wentzville, MO 63385
- Website
- View on Google Maps
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.