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Best IT Consultants in Oswego, IL (2026)

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

The short answer

  1. 1

    Best overall in Oswego: Thompson Solutions, LLC, IFR Score 60/100; 5.0★ from 11 Google reviews; open 7 days a week.

  2. 25

    Most-reviewed: MedPro Waste Disposal, 881 Google reviews at 4.5★, the most of 448 ranked; ranked #25.

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

448 Oswego IT consultants are ranked here by IFR Score, from nine published factors. 147 open Saturdays and 91 open Sundays, based on posted hours. The median Google rating is 5.0★ across 448 rated IT firms.

Most of this list also appears on the IT consultants in Joliet ranking. See IT consultants in Joliet

Top 10 IT consultants in Oswego at a glance

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Top 10 IT consultants in Oswego at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Thompson Solutions, LLC605.0★ (11)North Aurora, 9 mi awaySat · Sun · EveningsOverall
2Valexity Technologies594.8★ (18)Hanover Park, 21 mi awaySat · Sun · Evenings—
3Blackline IT594.7★ (83)Naperville, 11 mi away——
4Corporate Technologies594.8★ (32)Chicago, 39 mi awaySat · Sun · Evenings—
5DPC Computer repair584.9★ (630)Naperville, 13 mi awaySat · Evenings—
6Corporate Technologies | Naperville Managed IT Services Company585.0★ (6)Naperville, 12 mi awaySat · Sun · Evenings—
7K2 Services584.7★ (24)Chicago, 40 mi awaySat · Sun · Evenings—
8Nerd Rangers585.0★ (436)Naperville, 13 mi awaySat · Evenings—
9Alan's One Stop Computer Repairs574.9★ (480)Brookfield, 28 mi awaySat · Sun · Evenings—
10XenSpec575.0★ (8)Schaumburg, 25 mi awaySat · Sun · Evenings—

The 448 best IT consultants in Oswego, 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.

Scores below: based on 8 of 9 factors; recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Oswego

    #1 Thompson Solutions, LLC

    Based in North Aurora, 9 mi away

    60/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 11 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 11 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1427 Oakland Cir, North Aurora, IL 60542
    View profile for Thompson Solutions, LLC(224) 544-9031

  2. #2 Valexity Technologies

    Based in Hanover Park, 21 mi away

    59/100IFR Score

    Ranked #2 because of its Google rating and service focus: 4.8★ from 18 Google reviews, listed on Google as “Computer consultant”.

    • 4.8★ from 18 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    3855 County Farm Rd, Hanover Park, IL 60133
    View profile for Valexity Technologies(312) 300-4207

  3. #3 Blackline IT

    Based in Naperville, 11 mi away

    59/100IFR Score

    Ranked #3 because of its Google rating and service focus: 4.7★ from 83 Google reviews, listed on Google as “Computer consultant”.

    • 4.7★ from 83 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1751 W Diehl Rd #185, Naperville, IL 60563
    View profile for Blackline IT(630) 388-1700

  5. #5 DPC Computer repair

    Based in Naperville, 13 mi away

    58/100IFR Score

    Ranked #5 because of its Google rating and review volume: 4.9★ from 630 Google reviews.

    • 4.9★ from 630 Google reviews
    Hours
    Mon–Fri 10 AM–6:30 PM · Sat 10 AM–4 PM · Sun closed
    Address
    605 E Ogden Ave Unit B, Naperville, IL 60563
    View profile for DPC Computer repair(331) 226-2997

  7. #7 K2 Services

    Based in Chicago, 40 mi away

    58/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.7★ from 24 Google reviews, listed on Google as “Computer consultant”.

    • 4.7★ from 24 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    135 S LaSalle St Ste 3100, Chicago, IL 60603
    View profile for K2 Services(312) 332-3000

  8. #8 Nerd Rangers

    Based in Naperville, 13 mi away

    58/100IFR Score

    Ranked #8 because of its Google rating and review volume: 5.0★ from 436 Google reviews.

    • 5.0★ from 436 Google reviews
    Hours
    Mon–Wed 9:30 AM–6:30 PM · Thu 9:30 AM–4:30 PM · Fri 9:30 AM–6:30 PM · Sat 9:30 AM–4:30 PM · Sun closed
    Address
    200 E 5th Ave Ste 111, Naperville, IL 60563
    View profile for Nerd Rangers(630) 442-0141

  10. #10 XenSpec

    Based in Schaumburg, 25 mi away

    57/100IFR Score

    Ranked #10 because of its Google rating and service focus: 5.0★ from 8 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 8 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    902 Morse Ave, Schaumburg, IL 60193
    View profile for XenSpec(312) 847-1139

  12. #12 RIA WorkSpace

    Based in Chicago, 33 mi away

    57/100IFR Score

    Ranked #12 because of its Google rating and service focus: 5.0★ from 61 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 61 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    8770 W Bryn Mawr Ave #1300, Chicago, IL 60631
    View profile for RIA WorkSpace(855) 752-5212

  14. #14 Lirsen

    Based in Libertyville, 35 mi away

    57/100IFR Score

    Ranked #14 because of its Google rating and service focus: 5.0★ from 21 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 21 Google reviews
    Hours
    Mon–Sun 9 AM–5 PM
    View profile for Lirsen(224) 433-3936

  15. #15 ITChamp

    Based in Bolingbrook, 12 mi away

    57/100IFR Score

    Ranked #15 because of its Google rating and review volume: 5.0★ from 98 Google reviews.

    • 5.0★ from 98 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1072 Churchill Dr, Bolingbrook, IL 60440
    View profile for ITChamp

  16. #16 Ctrl-Alt-Fix

    Based in Channahon, 9 mi away

    57/100IFR Score

    Ranked #16 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 6 Google reviews
    Hours
    Mon–Fri 7 AM–6 PM · Sat 9 AM–4 PM · Sun 10 AM–3 PM
    View profile for Ctrl-Alt-Fix(567) 234-6999

  17. #17 Creative Tech

    Based in Skokie, 40 mi away

    56/100IFR Score

    Ranked #17 because of its Google rating and service focus: 4.2★ from 21 Google reviews, listed on Google as “Computer consultant”.

    • 4.2★ from 21 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    3505 W Howard St, Skokie, IL 60076
    View profile for Creative Tech(773) 897-8000

  18. #18 LS Consulting LLC

    Based in Yorkville, 5 mi away

    56/100IFR Score

    Ranked #18 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Fri 4 PM–12 AM · Sat–Sun 6 AM–10 PM
    Address
    1905 Marketview Dr #118, Yorkville, IL 60560
    View profile for LS Consulting LLC(815) 661-5853

  24. #24 InhouseCIO

    Based in Chicago, 33 mi away

    56/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 42 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 42 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    8770 W Bryn Mawr Ave Ste 1300 suite 1300, Chicago, IL 60631
    View profile for InhouseCIO(877) 361-3499

How we ranked Oswego IT consultants

We scored 448 Oswego 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 Oswego 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 Oswego: frequently asked questions

Who is the best IT consultant in Oswego?

By IFR Score, the highest-ranked IT consultant in Oswego, IL is Thompson Solutions, LLC with an IFR Score of 60/100. It has 5.0★ from 11 Google reviews. It is open 7 days a week. Valexity Technologies (#2) and Blackline IT (#3) follow. We ranked 448 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in Oswego?

ITFirmsRanked ranks 448 IT consultants serving Oswego, IL. 1 of them is based in Oswego; the rest serve it from nearby towns. Counts are as of November 2026.

Which IT consultants in Oswego work on weekends?

147 of 448 ranked IT consultants post Saturday hours and 91 post Sunday hours. The highest-ranked open Saturdays are Thompson Solutions, LLC (#1), Valexity Technologies (#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 Oswego IT consultants have?

The median Google rating among 448 rated IT consultants in Oswego 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 Oswego count in this ranking?

Yes, if they are within 50 mi of the Oswego 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 Oswego 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 Oswego

  1. November 2026: IFR Scores recalculated for 448 IT consultants serving Oswego.
  2. November 2026: 2 duplicate listings merged.

More IT consultants and Oswego pages