61/100IFR Score
Ranked #1 because of its Google rating and service focus: 4.8★ from 18 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Best IT Consultants in Saint Charles, IL (2026)
456 IT consultants ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Saint Charles: Valexity Technologies, IFR Score 61/100; 4.8★ from 18 Google reviews; open 7 days a week.
- 25
Most-reviewed: MedPro Waste Disposal, 881 Google reviews at 4.5★, the most of 456 ranked; ranked #25.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
456 Saint Charles IT consultants are ranked here by IFR Score, from nine published factors. 151 open Saturdays and 97 open Sundays, based on posted hours. The median Google rating is 5.0★ across 456 rated IT firms.
Top 10 IT consultants in Saint Charles at a glance
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| Rank | Business | IFR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Valexity Technologies | 61 | 4.8★ (18) | Hanover Park, 8 mi away | Sat · Sun · Evenings | Overall |
| 2 | Thompson Solutions, LLC | 60 | 5.0★ (11) | North Aurora, 8 mi away | Sat · Sun · Evenings | — |
| 3 | Blackline IT | 59 | 4.7★ (83) | Naperville, 10 mi away | — | — |
| 4 | Corporate Technologies | 59 | 4.8★ (32) | Chicago, 34 mi away | Sat · Sun · Evenings | — |
| 5 | XenSpec | 58 | 5.0★ (8) | Schaumburg, 12 mi away | Sat · Sun · Evenings | — |
| 6 | K2 Services | 58 | 4.7★ (24) | Chicago, 35 mi away | Sat · Sun · Evenings | — |
| 7 | DPC Computer repair | 58 | 4.9★ (630) | Naperville, 12 mi away | Sat · Evenings | — |
| 8 | RIA WorkSpace | 58 | 5.0★ (61) | Chicago, 24 mi away | — | — |
| 9 | Lirsen | 58 | 5.0★ (21) | Libertyville, 27 mi away | Sat · Sun | — |
| 10 | Corporate Technologies | Naperville Managed IT Services Company | 58 | 5.0★ (6) | Naperville, 13 mi away | Sat · Sun · Evenings | — |
The 456 best IT consultants in Saint Charles, ranked
Ordered by IFR Score, a 0–100 score from nine published factors. Paid placement never changes the order.
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
Based in North Aurora, 8 mi away
60/100IFR ScoreRanked #2 because of its Google rating and service focus: 5.0★ from 11 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#3 Blackline IT
Based in Naperville, 10 mi away
59/100IFR ScoreRanked #3 because of its Google rating and service focus: 4.7★ from 83 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Chicago, 34 mi away
59/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.8★ from 32 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#5 XenSpec
Based in Schaumburg, 12 mi away
58/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 8 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#6 K2 Services
Based in Chicago, 35 mi away
58/100IFR ScoreRanked #6 because of its Google rating and service focus: 4.7★ from 24 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Naperville, 12 mi away
58/100IFR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 630 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Chicago, 24 mi away
58/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 61 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#9 Lirsen
Based in Libertyville, 27 mi away
58/100IFR ScoreRanked #9 because of its Google rating and service focus: 5.0★ from 21 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Naperville, 13 mi away
58/100IFR ScoreRanked #10 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Brookfield, 25 mi away
58/100IFR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 480 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#12 Nerd Rangers
Based in Naperville, 13 mi away
58/100IFR ScoreRanked #12 because of its Google rating and review volume: 5.0★ from 436 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#13 Creative Tech
Based in Skokie, 31 mi away
57/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.2★ from 21 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Highland Park, 31 mi away
57/100IFR ScoreRanked #14 because of its Google rating and service focus: 5.0★ from 70 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Lisle, 12 mi away
57/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.7★ from 17 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Des Plaines, 23 mi away
57/100IFR ScoreRanked #16 because of its Google rating and service focus: 4.9★ from 20 Google reviews, listed on Google as “Computer consultant”.
Based on 7 of 9 factors; recency and availability not yet collected.
#17 InhouseCIO
Based in Chicago, 24 mi away
57/100IFR ScoreRanked #17 because of its Google rating and service focus: 5.0★ from 42 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Hanover Park, 9 mi away
57/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.0★ from 73 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Albany Park, 28 mi away
57/100IFR ScoreRanked #19 because of its Google rating and review volume: 4.9★ from 220 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Chicago, 35 mi away
57/100IFR ScoreRanked #20 because of its Google rating and service focus: 5.0★ from 64 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Bartlett, 23 mi away
56/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#22 ITChamp
Based in Bolingbrook, 18 mi away
56/100IFR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 98 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Algonquin, 18 mi away
56/100IFR ScoreRanked #23 because of its Google rating and review volume: 4.5★ from 436 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Lockport, 26 mi away
56/100IFR ScoreRanked #24 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Naperville, 10 mi away
56/100IFR ScoreRanked #25 because of its Google rating and review volume: 4.5★ from 881 Google reviews, the most in Saint Charles.
Based on 8 of 9 factors; recency not yet collected.
IT consultants ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in IFR Score order; each links to its profile. We publish the top 50 of 456 ranked IT consultants here; the rest are on their profiles.
Also serving Saint Charles
20 more IT consultants within 50 mi that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| AITC | In Saint Charles | |
| Ameritech Global Inc. | 5.0★ (2) | 10 mi |
| Argus Business Consulting | In Saint Charles | |
| Arnold Consulting, LLC | 5.0★ (1) | In Saint Charles |
| Brian Cole & Associates Inc | 5.0★ (2) | 3 mi |
| CastleWatch Cyber LLC | In Saint Charles | |
| CelereTech, Inc. | 5.0★ (2) | 5 mi |
| Critical Sight | IT Managed Services & Consulting | In Saint Charles | |
| Home PC Technologies | 5.0★ (2) | 5 mi |
| i-medIT Technology Solutions | 5.0★ (1) | In Saint Charles |
| LNI Multiservices LLC | 5.0★ (3) | In Saint Charles |
| Logon Group Inc | 5.0★ (4) | In Saint Charles |
| MG I Computer – Managed IT Services | In Saint Charles | |
| Micro Software Consultants Inc | In Saint Charles | |
| Net Works Consulting Resources | In Saint Charles | |
| net2Community, Inc. | In Saint Charles | |
| RGS IT Consulting | 3.5★ (2) | 8 mi |
| Schoening Technology Group Inc | 5.0★ (12) | In Saint Charles |
| Teqworks | 5.0★ (3) | In Saint Charles |
| Will - Technology Consulting | In Saint Charles |
How we ranked Saint Charles IT consultants
We scored 456 Saint Charles IT consultants on nine factors, weighted as shown. An IT firm is ranked when its service is confirmed and it has 3 or more Google reviews or a claimed profile. An IT firm with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.
Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Saint Charles data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 15% | Number of Google reviews, compared with the most-reviewed IT firm on the list | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday and 24/7 support | Measured |
| Service focus | 15% | How clearly the firm does this service (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The firm has claimed its IT Firms Ranked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The firm links to IT Firms Ranked from its own website with our badge, checked periodically | Measured |
| Client reviews | 10% | Verified client reviews collected by IT Firms Ranked: their rating and how many there are | Measured |
How to choose an IT consultant
- Ask whether the consultant earns commissions or referral fees on products they recommend.
- Check experience with projects like yours, and ask for a sample deliverable.
- Agree the deliverables, timeline and price for each phase before work starts.
- Ask for two or three references from clients of your size and industry, and call them.
- Get the scope, response times and price in writing before you sign, including how you leave and get your data back.
Questions to ask an IT consultant
- Do you receive commissions from any vendor you might recommend?
- What will we receive at the end of the project?
- Who will do the work, and what similar projects have they completed?
- Do you bill hourly, per project or on retainer?
- Will you work alongside our current IT provider?
Terms explained
- MSP (managed service provider)
- A firm that runs a business’s IT for a recurring fee: monitoring, patching, help desk, backups and security tools.
- Co-managed IT
- An arrangement where an outside firm supports an in-house IT person or team, sharing tools and tasks.
- Break-fix
- IT support paid per incident or per hour, with no monthly agreement.
- SLA (service-level agreement)
- The contract terms for response and resolution times, uptime and support hours.
- Help desk
- The support line staff call or email for IT problems.
- RMM
- Remote monitoring and management software that lets an IT firm watch, patch and fix computers remotely.
- vCIO
- A virtual chief information officer: part-time IT strategy and budgeting from an outside firm.
- MSSP
- A managed security service provider: a firm that monitors and manages security tools around the clock.
- EDR / MDR
- Endpoint detection and response software, and the managed service of people watching its alerts (managed detection and response).
- MFA
- Multi-factor authentication: a second proof of identity, such as an app prompt, on top of a password.
- Penetration test
- An authorised, simulated attack on your systems to find weaknesses before criminals do.
- SOC 2
- An independent auditor’s report (AICPA standard) on a service provider’s security controls.
IT consultants in Saint Charles: frequently asked questions
Who is the best IT consultant in Saint Charles?
By IFR Score, the highest-ranked IT consultant in Saint Charles, IL is Valexity Technologies with an IFR Score of 61/100. It has 4.8★ from 18 Google reviews. It is open 7 days a week. Thompson Solutions, LLC (#2) and Blackline IT (#3) follow. We ranked 456 IT consultants on nine factors, last updated November 9, 2026.
How many IT consultants are there in Saint Charles?
ITFirmsRanked ranks 456 IT consultants serving Saint Charles, IL. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.
Which IT consultants in Saint Charles work on weekends?
151 of 456 ranked IT consultants post Saturday hours and 97 post Sunday hours. The highest-ranked open Saturdays are Valexity Technologies (#1), Thompson Solutions, LLC (#2) and Corporate Technologies (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Saint Charles IT consultants have?
The median Google rating among 456 rated IT consultants in Saint Charles is 5.0★, with a median of 12 reviews. MedPro Waste Disposal has the most, 881 reviews, and ranks #25. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ITFirmsRanked rank IT consultants?
Each IT consultant gets a 0–100 IFR Score from nine published factors, led by reputation (25%), review volume (15%), service focus (15%) and recency (10%). An IT firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only IT firms with a confirmed service and 3 or more reviews, or a claimed profile, are ranked.
Do IT consultants outside Saint Charles count in this ranking?
Yes, if they are within 50 mi of the Saint Charles city center, our service radius for IT consultants. Each listing shows where the IT firm is based and how far away it is. Proximity is 5% of the IFR Score, so a nearby IT firm gets a small edge.
Can IT consultants pay to rank higher on ITFirmsRanked?
No. The IFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured IT firms may appear above the list, labelled Sponsored and showing their honest rank.
What does an IT consultant do?
IT consultants advise on technology plans and projects: system selection, cloud migrations, budgets, security and compliance programmes, often as a part-time or virtual CIO.
How are it consultants in Saint Charles ranked?
By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does IT consulting, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.
When does a business need an IT consultant rather than an IT provider?
For decisions and projects rather than day-to-day support: choosing a new system, planning a cloud move, setting an IT budget, preparing for an audit or reviewing an existing IT provider.
How do IT consultants charge?
By the hour, by the project or on a monthly retainer for ongoing virtual CIO work. Ask for a fixed price or a capped estimate on defined projects.
Update log for Saint Charles
- November 2026: IFR Scores recalculated for 456 IT consultants serving Saint Charles.
- November 2026: 2 duplicate listings merged.
More IT consultants and Saint Charles pages
IT consultants near Saint Charles
- IT consultants in Geneva, IL456 ranked
- IT consultants in Batavia, IL455 ranked
- IT consultants in Village of Campton Hills, IL451 ranked
- IT consultants in Wasco, IL451 ranked
- IT consultants in South Elgin, IL462 ranked
- IT consultants in West Chicago, IL457 ranked
- IT consultants in North Aurora, IL455 ranked
- IT consultants in Bartlett, IL463 ranked
- IT consultants in Elgin, IL461 ranked
- IT consultants in Carol Stream, IL456 ranked
Other services in Saint Charles
- Managed IT service providers in Saint Charles517 ranked
- Cybersecurity companies in Saint Charles336 ranked
- Network cabling and installation companies in Saint Charles247 ranked
- Business phone system providers in Saint Charles236 ranked
- Data recovery services in Saint Charles176 ranked
- Computer repair shops in Saint Charles167 ranked
- All IT providers in Saint Charles