IT services in Centralia, IL: 2026 report
105 ranked entriesUpdated 5 trade lists
The 5 service lists for Centralia, IL hold 105 ranked entries. Cybersecurity companies have the most, with 60. Among lists with 10 or more ranked, cybersecurity companies have the highest median Google rating: 4.8.
Key numbers for Centralia
Shares use ranked businesses as their base. An IT firm in two service lists counts in both.
105
ranked entries by IFR Score, in 5 service lists
181
service listings serving the city; an IT firm counts once per service
4.6
median of the services’ median Google ratings
IT services in Centralia, by ranked IT firms
| Service | Ranked | Serving the city | Median rating | Median reviews |
|---|---|---|---|---|
| Cybersecurity companies | 60 | 97 | 4.8 | 17 |
| Managed IT service providers | 19 | 37 | 4.6 | 21 |
| IT consultants | 9 | 21 | 4.6 | 25 |
| Business phone system providers | 9 | 15 | 4.4 | 65 |
| Computer repair shops | 8 | 11 | 4.6 | 18 |
Method and basis
- Serving counts are active, de-duplicated IT firms within each service’s service radius of Centralia, as of November 9, 2026.
- Ranked IT firms have a confident service match and 3 or more Google reviews, or a claimed profile.
- Median rating, median reviews and the shares are measured over ranked businesses.
- Figures are recalculated with each weekly data update. This page shows the latest figures for the year in its title.
Cite this report: ITFirmsRanked, “IT Services in Centralia, IL: 2026 Report”, https://www.itfirmsranked.com/reports/centralia-il-it-services-2026, data as of November 9, 2026.
Data is free to reuse with a link to this page. Read how we rank.