IT services in Northbrook, IL: 2026 report
2,306 ranked entriesUpdated 7 trade lists
The 7 service lists for Northbrook, IL hold 2,306 ranked entries. Managed IT service providers have the most, with 531.
Key numbers for Northbrook
Shares use ranked businesses as their base. An IT firm in two service lists counts in both.
2,306
ranked entries by IFR Score, in 7 service lists
4,457
service listings serving the city; an IT firm counts once per service
5.0
median of the services’ median Google ratings
IT services in Northbrook, by ranked IT firms
| Service | Ranked | Serving the city | Median rating | Median reviews |
|---|---|---|---|---|
| Managed IT service providers | 531 | 1,104 | 5.0 | 12 |
| IT consultants | 464 | 1,043 | 5.0 | 12 |
| Cybersecurity companies | 375 | 694 | 5.0 | 15 |
| Computer repair shops | 282 | 532 | 4.9 | 31 |
| Network cabling and installation companies | 243 | 419 | 5.0 | 12 |
| Business phone system providers | 236 | 389 | 4.8 | 15 |
| Data recovery services | 175 | 276 | 4.9 | 25 |
Method and basis
- Serving counts are active, de-duplicated IT firms within each service’s service radius of Northbrook, 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 Northbrook, IL: 2026 Report”, https://www.itfirmsranked.com/reports/northbrook-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.