Ranked #1 in St. Catharines
Based in Welland, 20 km away
61/100IFR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,199 Google reviews, the most in St. Catharines.
Best IT Consultants in St. Catharines, ON (2026)
393 IT consultants ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in St. Catharines: JTG Systems - Computer Repair - Laptop Repair, IFR Score 61/100; 4.9★ from 1,199 Google reviews; open 7 days a week.
- 30
Most-reviewed: OR Computer Solutions, 1,086 Google reviews at 5.0★, the most of 393 ranked after JTG Systems - Computer Repair - Laptop Repair; ranked #30.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
393 St. Catharines IT consultants are ranked here by IFR Score, from nine published factors. 161 open Saturdays and 105 open Sundays, based on posted hours. The median Google rating is 4.9★ across 393 rated IT firms.
Top 10 IT consultants in St. Catharines 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 | JTG Systems - Computer Repair - Laptop Repair | 61 | 4.9★ (1,199) | Welland, 20 km away | Sat · Sun · Evenings | Overall |
| 2 | IT MAC SUPPORT MISSISSAUGA | 60 | 5.0★ (73) | Mississauga, 53 km away | Sat · Sun · Evenings | — |
| 3 | Lighthouse Technology Services | 60 | 5.0★ (204) | Buffalo, 46 km away | — | — |
| 4 | Cyberia Hosting | 59 | 5.0★ (43) | Mississauga, 56 km away | Sat · Sun · Evenings | — |
| 5 | EZ PC | 57 | 4.9★ (158) | Welland, 18 km away | Sat · Sun · Evenings | — |
| 6 | Omega Network Solutions | 57 | 5.0★ (99) | North York, 65 km away | — | — |
| 7 | Walia Computers | 57 | 4.9★ (39) | Brampton, 76 km away | Sat · Sun · Evenings | — |
| 8 | TECHhelp | 56 | 4.0★ (63) | Mississauga, 59 km away | Sat · Sun · Evenings | — |
| 9 | Advance2000 | 56 | 4.8★ (213) | Amherst, 39 km away | Sat · Sun · Evenings | — |
| 10 | MVP Network Consulting, LLC. | 56 | 4.9★ (35) | Buffalo, 39 km away | — | — |
The 393 best IT consultants in St. Catharines, 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.
Based in Mississauga, 53 km away
60/100IFR ScoreRanked #2 because of its Google rating and service focus: 5.0★ from 73 Google reviews, listed on Google as “Computer consultant”.
Based in Buffalo, 46 km away
60/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 204 Google reviews, listed on Google as “Computer consultant”.
Based in Mississauga, 56 km away
59/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 43 Google reviews, listed on Google as “Computer consultant”.
#5 EZ PC
Based in Welland, 18 km away
57/100IFR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 158 Google reviews.
Based in North York, 65 km away
57/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 99 Google reviews, listed on Google as “Computer consultant”.
Based in Brampton, 76 km away
57/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.9★ from 39 Google reviews, listed on Google as “Computer consultant”.
#8 TECHhelp
Based in Mississauga, 59 km away
56/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.0★ from 63 Google reviews, listed on Google as “Computer consultant”.
#9 Advance2000
Based in Amherst, 39 km away
56/100IFR ScoreRanked #9 because of its Google rating and review volume: 4.8★ from 213 Google reviews.
Based in Buffalo, 39 km away
56/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.9★ from 35 Google reviews, listed on Google as “Computer consultant”.
Based in Willowdale, 72 km away
56/100IFR ScoreRanked #11 because of its Google rating and service focus: 5.0★ from 38 Google reviews, listed on Google as “Computer consultant”.
Based in Mississauga, 57 km away
56/100IFR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 425 Google reviews.
Based in Toronto, 54 km away
55/100IFR ScoreRanked #13 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Computer consultant”.
#14 MSP Corp
Based in Richmond Hill, 77 km away
55/100IFR ScoreRanked #14 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer consultant”.
Based in Milton, 64 km away
55/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.7★ from 31 Google reviews, listed on Google as “Computer consultant”.
Based in Cheektowaga, 49 km away
55/100IFR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 438 Google reviews.
Based in St. Catharines
55/100IFR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 248 Google reviews.
Based in Oakville, 51 km away
55/100IFR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 253 Google reviews.
Based in North York, 70 km away
55/100IFR ScoreRanked #19 because of its Google rating and service focus: 4.8★ from 71 Google reviews, listed on Google as “Computer support and services”.
#20 Computer Master
Based in Mississauga, 53 km away
55/100IFR ScoreRanked #20 because of its Google rating and service focus: 4.6★ from 43 Google reviews, listed on Google as “Computer consultant”.
Based in East York, 60 km away
55/100IFR ScoreRanked #21 because of its Google rating and review volume: 5.0★ from 145 Google reviews.
#22 Speed up!
Based in East York, 68 km away
55/100IFR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 177 Google reviews.
#23 ITRangers
Based in North York, 66 km away
55/100IFR ScoreRanked #23 because of its Google rating and service focus: 5.0★ from 21 Google reviews, listed on Google as “Computer consultant”.
#24 Point Alliance
Based in North York, 67 km away
54/100IFR ScoreRanked #24 because of its Google rating and service focus: 4.9★ from 40 Google reviews, listed on Google as “Computer consultant”.
#25 SS Tech Plus
Based in Lockport, 44 km away
54/100IFR ScoreRanked #25 because of its Google rating and review volume: 5.0★ from 141 Google reviews.
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 393 ranked IT consultants here; the rest are on their profiles.
Also serving St. Catharines
20 more IT consultants within 80 km that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Aegis Inc. | In St. Catharines | |
| BizNet Computer Integration Inc | 5.0★ (2) | In St. Catharines |
| Cleverly Named Solutions | 5.0★ (2) | 23 km |
| Compu-Tech | 3.0★ (2) | 37 km |
| Data Spark I.T. | 5.0★ (2) | 31 km |
| DF Computer Centre | 4.5★ (270) | In St. Catharines |
| DF Computer Centre | 4.3★ (102) | In St. Catharines |
| Digi Consulting Inc | 5.0★ (2) | In St. Catharines |
| Fixmysite.com | 5.0★ (38) | In St. Catharines |
| MediaVice Machine & Web | 5.0★ (2) | 14 km |
| Nerds On Site | In St. Catharines | |
| Niagara Linux | In St. Catharines | |
| Oghenefuyere Okiotorhoro | In St. Catharines | |
| Onsite Computer Repair | 3.0★ (2) | 14 km |
| Reed Computer Consulting | 5.0★ (2) | 36 km |
| Singular Media Inc. | 5.0★ (18) | In St. Catharines |
| SLP Computer Repairs | 4.8★ (180) | In St. Catharines |
| SolaSecura IT Solutions | In St. Catharines | |
| TechNewWings | In St. Catharines | |
| Thynk Innovation inc. | In St. Catharines |
How we ranked St. Catharines IT consultants
We scored 393 St. Catharines 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 St. Catharines 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 St. Catharines: frequently asked questions
Who is the best IT consultant in St. Catharines?
By IFR Score, the highest-ranked IT consultant in St. Catharines, ON is JTG Systems - Computer Repair - Laptop Repair with an IFR Score of 61/100. It has 4.9★ from 1,199 Google reviews. It is open 7 days a week. IT MAC SUPPORT MISSISSAUGA (#2) and Lighthouse Technology Services (#3) follow. We ranked 393 IT consultants on nine factors, last updated November 9, 2026.
How many IT consultants are there in St. Catharines?
ITFirmsRanked ranks 393 IT consultants serving St. Catharines, ON. 1 of them is based in St. Catharines; the rest serve it from nearby towns. Another 20 within 80 km are listed but not ranked yet. Counts are as of November 2026.
Which IT consultants in St. Catharines work on weekends?
161 of 393 ranked IT consultants post Saturday hours and 105 post Sunday hours. The highest-ranked open Saturdays are JTG Systems - Computer Repair - Laptop Repair (#1), IT MAC SUPPORT MISSISSAUGA (#2) and Cyberia Hosting (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do St. Catharines IT consultants have?
The median Google rating among 393 rated IT consultants in St. Catharines is 4.9★, with a median of 19 reviews. JTG Systems - Computer Repair - Laptop Repair has the most, 1,199 reviews, and ranks #1. 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 St. Catharines count in this ranking?
Yes, if they are within 80 km of the St. Catharines city centre, 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 St. Catharines 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 St. Catharines
- November 2026: IFR Scores recalculated for 393 IT consultants serving St. Catharines.
- November 2026: 1 duplicate listing merged.
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