59/100IFR Score
Ranked #1 because of its Google rating and service focus: 5.0★ from 178 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Best IT Consultants in Sarnia, ON (2026)
90 IT consultants ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Sarnia: The Computer Guy, LLC (TCG), IFR Score 59/100; 5.0★ from 178 Google reviews.
- 2
Most-reviewed: FIRST STOP Wireless(We Buy Phones) PS5 Disc Digital XBOX Series X iPhone repair Ps5 hdmi repair Warren/Detroit, 932 Google reviews at 4.9★, the most of 90 ranked; ranked #2.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
90 Sarnia IT consultants are ranked here by IFR Score, from nine published factors. 26 open Saturdays and 16 open Sundays, based on posted hours. The median Google rating is 4.9★ across 90 rated IT firms.
Top 10 IT consultants in Sarnia 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 | The Computer Guy, LLC (TCG) | 59 | 5.0★ (178) | Sterling Heights, 65 km away | — | Overall |
| 2 | FIRST STOP Wireless(We Buy Phones) PS5 Disc Digital XBOX Series X iPhone repair Ps5 hdmi repair Warren/Detroit | 56 | 4.9★ (932) | Warren, 80 km away | Sat · Sun · Evenings | Most reviews |
| 3 | Binary Computer Solutions | 56 | 5.0★ (191) | Port Huron, 4 km away | Sat | — |
| 4 | Quality Computer Solutions | 56 | 4.9★ (11) | Port Huron, 2 km away | — | — |
| 5 | One Stop I.T. Guru | 53 | 5.0★ (20) | Clinton Township, 64 km away | — | — |
| 6 | PCShards Computer Repair | 53 | 5.0★ (235) | Rochester Hills, 61 km away | Sat | — |
| 7 | Speedy Tech Computer Repair | 53 | 4.9★ (283) | Clinton Township, 62 km away | Sat · Evenings | — |
| 8 | MacKethan Computer Consulting | 52 | 5.0★ (20) | Detroit, 79 km away | — | — |
| 9 | GTA Business Systems | 52 | 4.9★ (14) | Burton, 74 km away | — | — |
| 10 | Cybertech Computers | 51 | 4.3★ (8) | Detroit, 78 km away | — | — |
The 90 best IT consultants in Sarnia, 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 Warren, 80 km away
56/100IFR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 932 Google reviews, the most in Sarnia.
Based on 8 of 9 factors; recency not yet collected.
Based in Port Huron, 4 km away
56/100IFR ScoreRanked #3 because of its Google rating and review volume: 5.0★ from 191 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Port Huron, 2 km away
56/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.9★ from 11 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Clinton Township, 64 km away
53/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 20 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Rochester Hills, 61 km away
53/100IFR ScoreRanked #6 because of its Google rating and review volume: 5.0★ from 235 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Clinton Township, 62 km away
53/100IFR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 283 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Detroit, 79 km away
52/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 20 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Burton, 74 km away
52/100IFR ScoreRanked #9 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.
Based in Detroit, 78 km away
51/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.3★ from 8 Google reviews, listed on Google as “Computer consultant”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Pontiac, 79 km away
51/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.5★ from 15 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#12 Centaris
Based in Sterling Heights, 70 km away
51/100IFR ScoreRanked #12 because of its Google rating and service focus: 3.7★ from 20 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Warren, 71 km away
51/100IFR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 40 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#14 Connected Geek
Based in Madison Heights, 77 km away
51/100IFR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 70 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#15 Gigamajig Inc.
Based in Auburn Hills, 78 km away
50/100IFR ScoreRanked #15 because of its Google rating and review volume: 4.7★ from 109 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Clinton Township, 50 km away
50/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 15 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Troy, 78 km away
50/100IFR ScoreRanked #17 because of its Google rating and review volume: 4.5★ from 54 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Sarnia
50/100IFR ScoreRanked #18 because of its Google rating and service focus: 5.0★ from 25 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Auburn Hills, 69 km away
49/100IFR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 69 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#20 Tech Enterprises
Based in Saint Clair Shores, 64 km away
49/100IFR ScoreRanked #20 because of its Google rating and review volume: 4.9★ from 128 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Port Huron, 38 km away
49/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 25 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Troy, 77 km away
49/100IFR ScoreRanked #22 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Troy, 76 km away
49/100IFR ScoreRanked #23 because of its Google rating and review volume: 4.5★ from 36 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Troy, 76 km away
49/100IFR ScoreRanked #24 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#25 Sun Tel Services
Based in Troy, 79 km away
49/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.4★ from 5 Google reviews, listed on Google as “Computer consultant”.
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 90 ranked IT consultants here; the rest are on their profiles.
Also serving Sarnia
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 |
|---|---|---|
| Acute Network Solutions | 5.0★ (2) | In Sarnia |
| Advanced IT Solutions | 5.0★ (2) | 77 km |
| AGS | 5.0★ (2) | 78 km |
| Apex IT Solutions | 4.6★ (10) | In Sarnia |
| Atlas Technologies | 5.0★ (134) | In Sarnia |
| C.E Technology Solutions Ltd. Sarnia | 5.0★ (31) | In Sarnia |
| Confidence I.T. Canada | 5.0★ (4) | In Sarnia |
| Creative Technology & Training | 5.0★ (1) | 63 km |
| Dark Sector Technologies Inc. | 5.0★ (1) | In Sarnia |
| Genius I.T Solutions | 5.0★ (9) | In Sarnia |
| Godlan Inc | 5.0★ (1) | 62 km |
| Helpdesk and Support Inc | In Sarnia | |
| LEADWAVE Technologies Inc. | 4.8★ (13) | In Sarnia |
| Letsy Tech Co | 5.0★ (2) | 55 km |
| LMS Solutions | In Sarnia | |
| Oracle | 3.0★ (2) | 78 km |
| R & D Audio Visual | 5.0★ (1) | 35 km |
| Ross Technology Solutions | 5.0★ (1) | 64 km |
| Sarnia Computers | 5.0★ (14) | In Sarnia |
| Vicore | 5.0★ (2) | 78 km |
How we ranked Sarnia IT consultants
We scored 90 Sarnia 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 Sarnia 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 Sarnia: frequently asked questions
Who is the best IT consultant in Sarnia?
By IFR Score, the highest-ranked IT consultant in Sarnia, ON is The Computer Guy, LLC (TCG) with an IFR Score of 59/100. It has 5.0★ from 178 Google reviews. FIRST STOP Wireless(We Buy Phones) PS5 Disc Digital XBOX Series X iPhone repair Ps5 hdmi repair Warren/Detroit (#2) and Binary Computer Solutions (#3) follow. We ranked 90 IT consultants on nine factors, last updated November 9, 2026.
How many IT consultants are there in Sarnia?
ITFirmsRanked ranks 90 IT consultants serving Sarnia, ON. 3 of them are based in Sarnia; 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 Sarnia work on weekends?
26 of 90 ranked IT consultants post Saturday hours and 16 post Sunday hours. The highest-ranked open Saturdays are FIRST STOP Wireless(We Buy Phones) PS5 Disc Digital XBOX Series X iPhone repair Ps5 hdmi repair Warren/Detroit (#2), Binary Computer Solutions (#3) and PCShards Computer Repair (#6). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Sarnia IT consultants have?
The median Google rating among 90 rated IT consultants in Sarnia is 4.9★, with a median of 19 reviews. FIRST STOP Wireless(We Buy Phones) PS5 Disc Digital XBOX Series X iPhone repair Ps5 hdmi repair Warren/Detroit has the most, 932 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 Sarnia count in this ranking?
Yes, if they are within 80 km of the Sarnia 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 Sarnia 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 Sarnia
- November 2026: IFR Scores recalculated for 90 IT consultants serving Sarnia.
More IT consultants and Sarnia pages
IT consultants near Sarnia
- IT consultants in Lambton Shores, ON34 ranked
- IT consultants in Chatham, ON84 ranked
- IT consultants in Windsor, ON212 ranked
- IT consultants in London, ON61 ranked
Other services in Sarnia
- Managed IT service providers in Sarnia123 ranked
- Cybersecurity companies in Sarnia166 ranked
- Network cabling and installation companies in Sarnia19 ranked
- Business phone system providers in Sarnia62 ranked
- Data recovery services in Sarnia31 ranked
- Computer repair shops in Sarnia16 ranked
- All IT providers in Sarnia