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Best IT Consultants in Saint Charles, MO (2026)

116 IT consultants ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Saint Charles: JJMicro Managed IT Solutions, IFR Score 59/100; 5.0★ from 54 Google reviews.

  2. 2

    Most-reviewed: Power Up Computers, 656 Google reviews at 4.9★, the most of 116 ranked; ranked #2.

Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank

116 Saint Charles IT consultants are ranked here by IFR Score, from nine published factors. 30 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.9★ across 116 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.

Top 10 IT consultants in Saint Charles at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1JJMicro Managed IT Solutions595.0★ (54)Lake Saint Louis, 17 mi away—Overall
2Power Up Computers594.9★ (656)O'Fallon, 12 mi awaySatMost reviews
3Bluebird IT LLC585.0★ (13)Bridgeton, 12 mi away——
4Ardent IT Solutions, LLC575.0★ (11)Saint Charles——
5GadellNet Consulting Services574.9★ (174)St. Louis, 17 mi awaySat · Sun—
6Karpel Solutions565.0★ (11)St. Louis, 18 mi awaySat · Evenings—
7Custom Macintosh/Windows Training564.0★ (8)Creve Coeur, 9 mi away——
8HanuHigh Technologies Inc564.9★ (14)Chesterfield, 11 mi away——
9Pearl Solutions Group565.0★ (183)Saint Charles——
10Ibridge Solutions LLC564.0★ (6)Creve Coeur, 8 mi away——

The 116 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.

  1. Ranked #1 in Saint Charles

    Based in Lake Saint Louis, 17 mi away

    59/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 54 Google reviews, listed on Google as “Computer consultant”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 54 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    3401 Technology Dr Ste 220, Lake St Louis, MO 63367
  2. Based in O'Fallon, 12 mi away

    59/100IFR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 656 Google reviews, the most in Saint Charles.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 656 Google reviews
    Hours
    Mon–Tue 10 AM–6 PM · Wed 10 AM–4 PM · Thu–Fri 10 AM–6 PM · Sat 10 AM–2 PM · Sun closed
    Address
    216 E Elm St, O'Fallon, MO 63366
  3. Based in Bridgeton, 12 mi away

    58/100IFR Score

    Ranked #3 because of its Google rating and service focus: 5.0★ from 13 Google reviews, listed on Google as “Computer consultant”.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 5.0★ from 13 Google reviews
  4. Based in Saint Charles

    57/100IFR Score

    Ranked #4 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.

    • 5.0★ from 11 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    2071 Collier Corporate Pkwy, St Charles, MO 63303
  5. Based in St. Louis, 18 mi away

    56/100IFR Score

    Ranked #6 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.

    • 5.0★ from 11 Google reviews
    Hours
    Mon–Fri 6 AM–10 PM · Sat 9 AM–5 PM · Sun closed
    Address
    9717 Landmark Pkwy Dr #200, St. Louis, MO 63127
  6. Based in Chesterfield, 11 mi away

    56/100IFR Score

    Ranked #8 because of its Google rating and service focus: 4.9★ from 14 Google reviews, listed on Google as “Computer consultant”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 14 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat–Sun closed
    Address
    100 Chesterfield Business Pkwy #200, Chesterfield, MO 63005
  7. Based in Saint Charles

    56/100IFR Score

    Ranked #9 because of its Google rating and review volume: 5.0★ from 183 Google reviews.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 183 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    4 Research Park Dr Ste 100, St Charles, MO 63304
  8. Based in Creve Coeur, 8 mi away

    56/100IFR Score

    Ranked #10 because of its Google rating and service focus: 4.0★ from 6 Google reviews, listed on Google as “Computer consultant”.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 4.0★ from 6 Google reviews
    Address
    2 Cityplace Dr #195, Creve Coeur, MO 63141
  9. 55/100IFR Score

    Ranked #12 because of its Google rating and service focus: 5.0★ from 12 Google reviews, listed on Google as “Computer support and services”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    7777 Bonhomme Ave, Clayton, MO 63105
  10. Based in Edwardsville, 28 mi away

    55/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer consultant”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    231 N Main St, Edwardsville, IL 62025
  11. Based in St. Louis, 9 mi away

    55/100IFR Score

    Ranked #16 because of its Google rating and review volume: 5.0★ from 32 Google reviews.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 32 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1353 Baur Blvd, St. Louis, MO 63132
  12. Based in Chesterfield, 10 mi away

    55/100IFR Score

    Ranked #19 because of its Google rating and service focus: 3.8★ from 14 Google reviews, listed on Google as “Computer consultant”.

    Based on 8 of 9 factors; recency not yet collected.

    • 3.8★ from 14 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    16401 Swingley Ridge Rd #500, Chesterfield, MO 63017
  13. Based in Chesterfield, 10 mi away

    55/100IFR Score

    Ranked #20 because of its Google rating and service focus: 3.6★ from 17 Google reviews, listed on Google as “Computer consultant”.

    Based on 8 of 9 factors; recency not yet collected.

    • 3.6★ from 17 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    16253 Swingley Ridge Rd Ste 300, Chesterfield, MO 63017
  14. Based in St. Louis, 12 mi away

    54/100IFR Score

    Ranked #21 because of its Google rating and service focus: 3.8★ from 13 Google reviews, listed on Google as “Computer consultant”.

    Based on 8 of 9 factors; recency not yet collected.

    • 3.8★ from 13 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    12825 Flushing Meadows Dr #100, St. Louis, MO 63131
  15. Based in St. Louis, 10 mi away

    54/100IFR Score

    Ranked #25 because of its Google rating and service focus: 2.3★ from 3 Google reviews, listed on Google as “Computer consultant”.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 2.3★ from 3 Google reviews
    Address
    520 Maryville Centre Dr, St. Louis, MO 63141

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 116 ranked IT consultants here; the rest are on their profiles.

IT consultants in Saint Charles, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Applied Technologies544.5★ (4)7 mi
27Hostirian534.4★ (29)7 mi
28Schmerold Computer Systems534.8★ (6)16 mi
29Keystone Technologies535.0★ (7)22 mi
30Monkz Inc535.0★ (8)16 mi
31Lanserv Inc535.0★ (6)19 mi
32Pro Computers and Consulting534.3★ (6)12 mi
33Kaleidoscope Client Services, LLC535.0★ (6)15 mi
34Da-Com Corporation534.9★ (116)16 mi
35Gateway Productivity535.0★ (5)21 mi
36Absolute Computer Solutions524.8★ (6)25 mi
37Computer Solutions524.8★ (130)16 mi
38SBS Creatix LLC525.0★ (3)13 mi
39TechRescueStLouis.com524.7★ (95)17 mi
40Computer PRO Unltd.524.5★ (90)In Saint Charles
41Alliance Tech | IT Services St. Louis525.0★ (70)12 mi
42IT Architechs, Inc.525.0★ (102)20 mi
43Savvy Technical Solutions525.0★ (8)33 mi
44David Strom Inc524.7★ (3)15 mi
45Chameleon Integrated Services525.0★ (3)17 mi
46Onsite Computer Consulting Services Inc524.2★ (5)19 mi
47Dimension Computer, LLC524.9★ (86)14 mi
48Slothworks525.0★ (4)40 mi
49NetGain Technologies, LLC524.9★ (14)15 mi
50Essential Network Technologies | Missouri IT Support Company & Managed IT Services525.0★ (55)9 mi

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.

Unranked IT consultants serving Saint Charles
BusinessGoogle ratingDistance
ABM Federal3.0★ (2)11 mi
Archway IT Services4.3★ (6)In Saint Charles
Art DevIn Saint Charles
Beacon Virtual Assistants, LLC3.1★ (15)In Saint Charles
BMA Inc5.0★ (2)34 mi
Bundy & Associates Inc2.5★ (2)In Saint Charles
Comm-Tech Computer Services LLC5.0★ (19)In Saint Charles
Complete Technology Services (St. Louis Office)In Saint Charles
eTech Solutions4.9★ (1,082)In Saint Charles
Fusion Technology Solutions4.5★ (2)14 mi
Industritech SolutionsIn Saint Charles
MAGTSIn Saint Charles
Micrologic Business Systems4.5★ (2)In Saint Charles
Mobile Gadgets & 1KIND VISUALS5.0★ (1)7 mi
SingleWave Technologies4.9★ (63)In Saint Charles
Stockell Consulting5.0★ (2)10 mi
Tek45.0★ (2)21 mi
The Newberry Group, Inc.In Saint Charles
ThinkIT STL5.0★ (2)16 mi
TSI Global Companies4.9★ (61)In Saint Charles

How we ranked Saint Charles IT consultants

We scored 116 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.

Read the full method: formula, sources and exclusions

IFR Score factors and weights
FactorWeightComputed fromIn Saint Charles data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Review volume15%Number of Google reviews, compared with the most-reviewed IT firm on the listMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday and 24/7 supportMeasured
Service focus15%How clearly the firm does this service (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The firm has claimed its IT Firms Ranked profile (free or paid earn the same)Measured
Partnered5%The firm links to IT Firms Ranked from its own website with our badge, checked periodicallyMeasured
Client reviews10%Verified client reviews collected by IT Firms Ranked: their rating and how many there areMeasured

How to choose an IT consultant

  1. Ask whether the consultant earns commissions or referral fees on products they recommend.
  2. Check experience with projects like yours, and ask for a sample deliverable.
  3. Agree the deliverables, timeline and price for each phase before work starts.
  4. Ask for two or three references from clients of your size and industry, and call them.
  5. 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, MO is JJMicro Managed IT Solutions with an IFR Score of 59/100. It has 5.0★ from 54 Google reviews. Power Up Computers (#2) and Bluebird IT LLC (#3) follow. We ranked 116 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in Saint Charles?

ITFirmsRanked ranks 116 IT consultants serving Saint Charles, MO. 3 of them are based in Saint Charles; the rest serve it from nearby towns. 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?

30 of 116 ranked IT consultants post Saturday hours and 19 post Sunday hours. The highest-ranked open Saturdays are Power Up Computers (#2), GadellNet Consulting Services (#5) and Karpel Solutions (#6). 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 116 rated IT consultants in Saint Charles is 4.9★, with a median of 11 reviews. Power Up Computers has the most, 656 reviews, and ranks #2. 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

  1. November 2026: IFR Scores recalculated for 116 IT consultants serving Saint Charles.