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Best IT Consultants in St. Thomas, ON (2026)

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

The short answer

  1. 1

    Best overall in St. Thomas: North Shield Technology, IFR Score 63/100; 5.0★ from 100 Google reviews; open 7 days a week.

  2. 2

    Most-reviewed: Forest City Computers, 1,221 Google reviews at 4.8★, the most of 37 ranked; ranked #2.

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

37 St. Thomas IT consultants are ranked here by IFR Score, from nine published factors. 12 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 5.0★ across 37 rated IT firms.

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

Top 10 IT consultants in St. Thomas at a glance

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

Top 10 IT consultants in St. Thomas at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1North Shield Technology635.0★ (100)London, 25 km awaySat · Sun · EveningsOverall
2Forest City Computers584.8★ (1,221)London, 26 km awaySatMost reviews
3DENTED Development Inc553.3★ (3)London, 23 km awaySat · Sun · Evenings—
4mark-IT Technology Solutions Group Inc.545.0★ (7)St. Thomas——
5Personal Computers544.9★ (170)London, 19 km awaySat—
6MC BUSINESS TECHNOLOGY CONSULTING GROUP INC.534.9★ (34)St. Thomas——
7Forvan Technology Services525.0★ (13)Woodstock, 52 km away——
8GOTECH Networking Solutions524.7★ (22)Stratford, 68 km away——
9TechBytes524.8★ (49)London, 25 km awaySat · Sun · Evenings—
10Next Dimension Inc.524.3★ (6)London, 25 km away——

The 37 best IT consultants in St. Thomas, 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 St. Thomas

    Based in London, 25 km away

    63/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 100 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 100 Google reviews
    Hours
    Mon–Fri 10 AM–8 PM · Sat–Sun 12 PM–8 PM
    Address
    1472 Dundas St E, London, ON N5W 3B9
  2. Based in London, 26 km away

    58/100IFR Score

    Ranked #2 because of its Google rating and review volume: 4.8★ from 1,221 Google reviews, the most in St. Thomas.

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

    • 4.8★ from 1,221 Google reviews
    Hours
    Mon–Fri 10 AM–6 PM · Sat 10 AM–5 PM · Sun closed
    Address
    991 Oxford St E, London, ON N5Y 3K6
  3. Based in London, 23 km away

    55/100IFR Score

    Ranked #3 because of its Google rating and service focus: 3.3★ from 3 Google reviews, listed on Google as “Computer consultant”.

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

    • 3.3★ from 3 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    837 Sunninghill Ave, London, ON N6H 3M1
  4. Based in London, 19 km away

    54/100IFR Score

    Ranked #5 because of its Google rating and review volume: 4.9★ from 170 Google reviews.

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

    • 4.9★ from 170 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 10 AM–4 PM · Sun closed
  5. Based in Woodstock, 52 km away

    52/100IFR Score

    Ranked #7 because of its Google rating and service focus: 5.0★ from 13 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 13 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    225 Main St E, Woodstock, ON N4S 1T1
  6. Based in Stratford, 68 km away

    52/100IFR Score

    Ranked #8 because of its Google rating and service focus: 4.7★ from 22 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.7★ from 22 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    617 Douro St Suite #105, Stratford, ON N5A 0B5
  7. Based in London, 25 km away

    52/100IFR Score

    Ranked #9 because of its Google rating and review volume: 4.8★ from 49 Google reviews.

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

    • 4.8★ from 49 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat–Sun 9 AM–6 PM
    Address
    54 Argyle St, London, ON N6H 1Y7
  8. Based in London, 25 km away

    52/100IFR Score

    Ranked #10 because of its Google rating and service focus: 4.3★ from 6 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.3★ from 6 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    627 Maitland St Unit 8, London, ON N5Y 2Z3
  9. Based in London, 26 km away

    51/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 29 Google reviews, listed on Google as “Computer repair service”.

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

    • 5.0★ from 29 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat–Sun 9 AM–6 PM
    Address
    34 Wistow St, London, ON N6Y 1E1
  10. 51/100IFR Score

    Ranked #12 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 3 Google reviews
    Address
    75 Springbank Ave, Woodstock, ON N4S 7P7
  11. Based in Stratford, 69 km away

    50/100IFR Score

    Ranked #14 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Fri 9 AM–5:30 PM · Sat–Sun closed
    Address
    206 Ontario St B01, Stratford, ON N5A 3H4
  12. Based in London, 17 km away

    50/100IFR Score

    Ranked #15 because of its Google rating and review volume: 4.9★ from 51 Google reviews.

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

    • 4.9★ from 51 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    85 Midpark Rd Unit 4, London, ON N6N 1B2
  13. Based in St. Thomas

    48/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer support and services”.

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

    • 5.0★ from 10 Google reviews
    Hours
    Mon–Fri 10 AM–6:30 PM · Sat 1 PM–5 PM · Sun closed
    Address
    Oxford Terrace, St. Thomas, ON N5R 0H7
  14. Based in London, 28 km away

    48/100IFR Score

    Ranked #18 because of its Google rating and review volume: 4.6★ from 45 Google reviews.

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

    • 4.6★ from 45 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    Wyndham Gate, 1500 Richmond St Unit 8, London, ON N6G 4V1
  15. Based in London, 24 km away

    46/100IFR Score

    Ranked #21 because of its Google rating and service focus: 4.8★ from 16 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.8★ from 16 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    300 Wellington St UNIT 200, London, ON N6B 3P2
  16. Based in London, 23 km away

    46/100IFR Score

    Ranked #22 because of its Google rating and service focus: 5.0★ from 19 Google reviews, listed on Google as “Computer repair service”.

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

    • 5.0★ from 19 Google reviews
    Hours
    Mon–Tue 9:30 AM–5 PM · Wed–Sun closed
    Address
    2374 Wickerson Rd, London, ON N6K 0H6
  17. Based in London, 24 km away

    45/100IFR Score

    Ranked #23 because of its Google rating and service focus: 4.8★ from 12 Google reviews, listed on Google as “Computer security service”.

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

    • 4.8★ from 12 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    380 Wellington St Tower B - 6th Floor, London, ON N6A 5B5
  18. Based in London, 17 km away

    45/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer support and services”.

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

    • 5.0★ from 9 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    45 Meg Dr #106, London, ON N6E 2V2
  19. Based in London, 44 km away

    45/100IFR Score

    Ranked #25 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer support and services”.

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

    • 5.0★ from 9 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat 9 AM–3 PM · Sun closed

How we ranked St. Thomas IT consultants

We scored 37 St. Thomas 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 St. Thomas 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 St. Thomas: frequently asked questions

Who is the best IT consultant in St. Thomas?

By IFR Score, the highest-ranked IT consultant in St. Thomas, ON is North Shield Technology with an IFR Score of 63/100. It has 5.0★ from 100 Google reviews. It is open 7 days a week. Forest City Computers (#2) and DENTED Development Inc (#3) follow. We ranked 37 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in St. Thomas?

ITFirmsRanked ranks 37 IT consultants serving St. Thomas, ON. 4 of them are based in St. Thomas; the rest serve it from nearby towns. Counts are as of November 2026.

Which IT consultants in St. Thomas work on weekends?

12 of 37 ranked IT consultants post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are North Shield Technology (#1), Forest City Computers (#2) and DENTED Development Inc (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do St. Thomas IT consultants have?

The median Google rating among 37 rated IT consultants in St. Thomas is 5.0★, with a median of 10 reviews. Forest City Computers has the most, 1,221 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 St. Thomas count in this ranking?

Yes, if they are within 80 km of the St. Thomas 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. Thomas 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. Thomas

  1. November 2026: IFR Scores recalculated for 37 IT consultants serving St. Thomas.