57/100IFR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 411 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Best Cybersecurity Companies in Belleville, ON (2026)
41 cybersecurity companies ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Belleville: CompuClinic, IFR Score 57/100; 4.9★ from 411 Google reviews; open Saturdays until 2 PM.
- 3
Most-reviewed: Computer Center, 452 Google reviews at 4.9★, the most of 41 ranked; ranked #3.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
41 Belleville cybersecurity companies are ranked here by IFR Score, from nine published factors. 6 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 41 rated IT firms.
Top 10 cybersecurity companies in Belleville 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 | CompuClinic | 57 | 4.9★ (411) | Peterborough, 74 km away | Sat | Overall |
| 2 | allCare IT - Cyber Security & IT Solutions | 55 | 5.0★ (101) | Kingston, 66 km away | — | — |
| 3 | Computer Center | 55 | 4.9★ (452) | Watertown, 119 km away | Sat | Most reviews |
| 4 | McFarland IT Solutions | 54 | 5.0★ (28) | Lindsay, 110 km away | — | — |
| 5 | Dox | 54 | 5.0★ (22) | Rochester, 113 km away | — | — |
| 6 | Onit | 53 | 4.9★ (66) | Belleville | — | — |
| 7 | Brock IT | IT Services | 52 | 5.0★ (5) | Kingston, 66 km away | — | — |
| 8 | IT Insights of Rochester | 51 | 5.0★ (9) | Rochester, 114 km away | — | — |
| 9 | Rescuecom of Rochester | 51 | 5.0★ (30) | Gates-North Gates, 111 km away | Sat · Sun · Evenings | — |
| 10 | ProArch | 51 | 4.5★ (10) | Brighton, 119 km away | — | — |
The 41 best cybersecurity companies in Belleville, 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 Kingston, 66 km away
55/100IFR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 101 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Watertown, 119 km away
55/100IFR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 452 Google reviews, the most in Belleville.
Based on 8 of 9 factors; recency not yet collected.
Based in Lindsay, 110 km away
54/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 28 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#5 Dox
Based in Rochester, 113 km away
54/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 22 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#6 Onit
Based in Belleville
53/100IFR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 66 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Kingston, 66 km away
52/100IFR ScoreRanked #7 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Rochester, 114 km away
51/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Gates-North Gates, 111 km away
51/100IFR ScoreRanked #9 because of its Google rating and review volume: 5.0★ from 30 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#10 ProArch
Based in Brighton, 119 km away
51/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.5★ from 10 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#11 JC Computers
Based in Peterborough, 76 km away
51/100IFR ScoreRanked #11 because of its Google rating and review volume: 4.8★ from 52 Google reviews.
Based on 7 of 9 factors; recency and availability not yet collected.
#12 ComTec Solutions
Based in Rochester, 115 km away
51/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.8★ from 8 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#13 Microworx
Based in Rochester, 117 km away
50/100IFR ScoreRanked #13 because of its Google rating and review volume: 4.6★ from 244 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Brighton, 101 km away
50/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.8★ from 17 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#15 iSECURE
Based in Rochester, 113 km away
50/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.3★ from 6 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#16 Vengrid Networks
Based in Brighton, 116 km away
50/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#17 C3 Solutions
Based in Prince Edward, 26 km away
49/100IFR ScoreRanked #17 because of its Google rating and review volume: 5.0★ from 24 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Rochester, 112 km away
49/100IFR ScoreRanked #18 because of its Google rating and service focus: 5.0★ from 17 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Rochester, 116 km away
49/100IFR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 30 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Kingston, 65 km away
47/100IFR ScoreRanked #20 because of its Google rating and review volume: 5.0★ from 21 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#21 LMS IT SERVICES
Based in Belleville
47/100IFR ScoreRanked #21 because of its Google rating and service focus: 4.6★ from 8 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Rochester, 116 km away
47/100IFR ScoreRanked #22 because of its Google rating and review volume: 4.7★ from 56 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Rochester, 112 km away
47/100IFR ScoreRanked #23 because of its Google rating and review volume: 5.0★ from 35 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Belleville
47/100IFR ScoreRanked #24 because of its Google rating and service focus: 4.7★ from 6 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#25 LyteSpeed
Based in Rochester, 112 km away
46/100IFR ScoreRanked #25 because of its Google rating and review volume: 4.3★ from 70 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
All 41 cybersecurity companies
#1 to #25 are shown in full above. Here are #26 to #41, in IFR Score order; each links to its profile.
| Rank | Business | IFR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | BBS Tech LLC | 46 | 4.7★ (39) | 109 km |
| 27 | Reynolds Arcade | 45 | 4.0★ (60) | 114 km |
| 28 | CMIT Solutions of Rochester | 45 | 4.8★ (24) | 116 km |
| 29 | Hurricane Technologies, Inc | 45 | 4.8★ (25) | 120 km |
| 30 | PC+NET Computer services | 45 | 5.0★ (6) | 76 km |
| 31 | MicroAge Peterborough - Whitby | 45 | 4.1★ (15) | 77 km |
| 32 | Weehooey Inc. | 45 | 5.0★ (9) | 70 km |
| 33 | Mega IT Rochester | 44 | 5.0★ (16) | 116 km |
| 34 | Data Brilliance Software Inc. | 44 | 5.0★ (13) | 113 km |
| 35 | Techq | 43 | 5.0★ (4) | 69 km |
| 36 | Entre Computer Services | 43 | 4.7★ (12) | 119 km |
| 37 | Fusion Digital LLC | 43 | 4.6★ (10) | 117 km |
| 38 | Layer 3 Technologies, Inc. | 42 | 4.6★ (9) | 114 km |
| 39 | OT Group | 42 | 5.0★ (3) | 66 km |
| 40 | Redsilicon | 42 | 5.0★ (6) | 118 km |
| 41 | Upstate Communication & Security | 40 | 5.0★ (3) | 117 km |
Also serving Belleville
20 more cybersecurity companies within 121 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 |
|---|---|---|
| Bar None Design | 5.0★ (1) | 115 km |
| Bay Systems Technologies Inc | 4.0★ (4) | In Belleville |
| Bay Technology Solutions | 5.0★ (19) | In Belleville |
| ChoiceCom Networks & Communications Ltd. | 5.0★ (42) | In Belleville |
| Dani Security | 5.0★ (2) | 121 km |
| ECC Technologies Inc | 5.0★ (1) | 116 km |
| Fast Tech Solution | 5.0★ (1) | 32 km |
| Freelance Arcade Computer Repairs | 5.0★ (13) | In Belleville |
| Latour IT Services | 5.0★ (2) | 75 km |
| Legal Evidence Corp | 5.0★ (1) | 120 km |
| MicroAge Belleville | 5.0★ (5) | In Belleville |
| Nesda Cloud Canada | In Belleville | |
| Nesda Technologies Ltd | 3.9★ (11) | In Belleville |
| Nesda Technologies Ltd | 19 km | |
| OT Group | 5.0★ (1) | 51 km |
| PC-MAX Network Solutions | 5.0★ (1) | 105 km |
| Proxigo Technologies | In Belleville | |
| Tech Superhero | 5.0★ (1) | 101 km |
| Vital Records Control | 3.0★ (2) | 119 km |
| Vital Records Control (VRC) | 1.0★ (1) | 114 km |
How we ranked Belleville cybersecurity companies
We scored 41 Belleville cybersecurity companies 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 Belleville 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 a cybersecurity company
- Ask whether monitoring is staffed around the clock by the firm itself or by a partner.
- Ask for a sample assessment or penetration-test report with client details removed.
- Check experience with your industry’s rules (for example HIPAA, PCI DSS or CMMC).
- Ask what the firm does in the first hour of an incident, and whether that is in the contract.
- 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 a cybersecurity company
- Is your security monitoring staffed 24/7, and by whom?
- Which frameworks do you assess against?
- What do your reports include, and do you re-test after we fix the findings?
- Do you handle incident response yourselves, and do you work with cyber insurers?
- What access will you need to our systems, and how is it controlled and logged?
- Which certifications do the people doing the work hold?
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.
Cybersecurity companies in Belleville: frequently asked questions
Who is the best cybersecurity company in Belleville?
By IFR Score, the highest-ranked cybersecurity company in Belleville, ON is CompuClinic with an IFR Score of 57/100. It has 4.9★ from 411 Google reviews. It is open Saturdays until 2 PM. allCare IT - Cyber Security & IT Solutions (#2) and Computer Center (#3) follow. We ranked 41 cybersecurity companies on nine factors, last updated November 9, 2026.
How many cybersecurity companies are there in Belleville?
ITFirmsRanked ranks 41 cybersecurity companies serving Belleville, ON. 3 of them are based in Belleville; the rest serve it from nearby towns. Another 20 within 121 km are listed but not ranked yet. Counts are as of November 2026.
Which cybersecurity companies in Belleville work on weekends?
6 of 41 ranked cybersecurity companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are CompuClinic (#1), Computer Center (#3) and Rescuecom of Rochester (#9). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Belleville cybersecurity companies have?
The median Google rating among 41 rated cybersecurity companies in Belleville is 4.9★, with a median of 17 reviews. Computer Center has the most, 452 reviews, and ranks #3. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ITFirmsRanked rank cybersecurity companies?
Each cybersecurity company 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 cybersecurity companies outside Belleville count in this ranking?
Yes, if they are within 121 km of the Belleville city centre, our service radius for cybersecurity companies. 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 cybersecurity companies 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 a cybersecurity company do?
Cybersecurity companies assess and protect a business’s systems and data: security monitoring, endpoint protection, penetration testing, compliance support and incident response.
How are cybersecurity companies in Belleville ranked?
By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does cybersecurity, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.
Do we need a cybersecurity firm if we already have an IT provider?
Sometimes. Many IT providers include basic security tools; a security firm adds specialist work such as 24/7 monitoring, penetration tests, compliance audits and incident response. Ask your IT provider what they cover and where they would bring in a specialist.
What is the difference between a security assessment and a penetration test?
An assessment reviews your policies, settings and controls against a framework. A penetration test is an authorised, simulated attack that tries to exploit weaknesses. Both end with a written report and a list of fixes.
Can a cybersecurity firm help with compliance?
Many help organisations prepare for requirements such as HIPAA, PCI DSS, CMMC or SOC 2. They can advise and assess, but only an independent auditor issues a SOC 2 report, and compliance is ultimately your responsibility.
Update log for Belleville
- November 2026: IFR Scores recalculated for 41 cybersecurity companies serving Belleville.
More cybersecurity companies and Belleville pages
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