65/100IFR Score
Ranked #1 because of its Google rating and service focus: 4.9★ from 322 Google reviews, listed on Google as “Computer security service”.
Best Cybersecurity Companies in Waterloo, ON (2026)
360 cybersecurity companies ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Waterloo: ACN TECHNOLOGY, IFR Score 65/100; 4.9★ from 322 Google reviews; open 7 days a week.
- 47
Most-reviewed: SK Computers, 663 Google reviews at 4.7★, the most of 360 ranked; ranked #47.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
360 Waterloo cybersecurity companies are ranked here by IFR Score, from nine published factors. 117 open Saturdays and 77 open Sundays, based on posted hours. The median Google rating is 5.0★ across 360 rated IT firms.
Top 10 cybersecurity companies in Waterloo 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 | ACN TECHNOLOGY | 65 | 4.9★ (322) | Brampton, 70 km away | Sat · Sun · Evenings | Overall |
| 2 | Rhyno Cyber Security Services | 64 | 5.0★ (40) | Kitchener, 2 km away | Sat · Sun · Evenings | — |
| 3 | Canary Trap | 63 | 5.0★ (81) | Mississauga, 77 km away | Sat · Sun · Evenings | — |
| 4 | IT Z | 62 | 5.0★ (33) | Ancaster, 53 km away | Sat · Sun · Evenings | — |
| 5 | Synchroworks Consulting | 62 | 4.9★ (56) | Brampton, 79 km away | Sat · Sun · Evenings | — |
| 6 | Plutosec Cyber Security Company | 61 | 5.0★ (49) | Brampton, 80 km away | Sat · Sun · Evenings | — |
| 7 | Ferro Technics Inc.| Cyber Security Consulting and Training Services | 61 | 4.9★ (136) | East York, 107 km away | Sat · Sun · Evenings | — |
| 8 | USOC Inc | 61 | 4.8★ (13) | Kitchener, 5 km away | Sat · Sun · Evenings | — |
| 9 | Certified Nerds | 61 | 5.0★ (74) | Pickering, 118 km away | Sat · Sun · Evenings | — |
| 10 | Arctic Wolf | 61 | 4.8★ (55) | Waterloo | Evenings | — |
The 360 best cybersecurity companies in Waterloo, 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 Kitchener, 2 km away
64/100IFR ScoreRanked #2 because of its Google rating and service focus: 5.0★ from 40 Google reviews, listed on Google as “Computer security service”.
#3 Canary Trap
Based in Mississauga, 77 km away
63/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 81 Google reviews, listed on Google as “Computer security service”.
#4 IT Z
Based in Ancaster, 53 km away
62/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 33 Google reviews, listed on Google as “Computer security service”.
Based in Brampton, 79 km away
62/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.9★ from 56 Google reviews, listed on Google as “Computer security service”.
Based in Brampton, 80 km away
61/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 49 Google reviews, listed on Google as “Computer security service”.
Based in East York, 107 km away
61/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.9★ from 136 Google reviews, listed on Google as “Computer security service”.
#8 USOC Inc
Based in Kitchener, 5 km away
61/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.8★ from 13 Google reviews, listed on Google as “Computer security service”.
Based in Pickering, 118 km away
61/100IFR ScoreRanked #9 because of its Google rating and service focus: 5.0★ from 74 Google reviews, listed on Google as “Computer security service”.
#10 Arctic Wolf
Based in Waterloo
61/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.8★ from 55 Google reviews, listed on Google as “Computer security service”.
Based in Hamilton, 82 km away
60/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.9★ from 152 Google reviews, listed on Google as “Computer security service”.
Based in North York, 102 km away
59/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.9★ from 112 Google reviews, listed on Google as “Computer security service”.
Based in Hamilton, 67 km away
59/100IFR ScoreRanked #13 because of its Google rating and service focus: 5.0★ from 59 Google reviews, listed on Google as “Computer security service”.
Based in Waterloo
59/100IFR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 131 Google reviews.
#15 eSentire Inc.
Based in Waterloo
59/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.6★ from 43 Google reviews, listed on Google as “Computer security service”.
Based in Mississauga, 67 km away
59/100IFR ScoreRanked #16 because of its Google rating and service focus: 4.7★ from 65 Google reviews, listed on Google as “Computer security service”.
Based in Kitchener, 6 km away
59/100IFR ScoreRanked #17 because of its Google rating and review volume: 5.0★ from 114 Google reviews.
#18 Code Maximus
Based in Vaughan, 87 km away
59/100IFR ScoreRanked #18 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Computer security service”.
#19 F12.net
Based in Markham, 102 km away
59/100IFR ScoreRanked #19 because of its Google rating and service focus: 4.9★ from 160 Google reviews, listed on Google as “Computer security service”.
#20 Difenda
Based in Oakville, 68 km away
59/100IFR ScoreRanked #20 because of its Google rating and service focus: 5.0★ from 14 Google reviews, listed on Google as “Computer security service”.
Based in Mississauga, 76 km away
59/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 79 Google reviews, listed on Google as “Computer security service”.
#22 Genieall
Based in Brampton, 76 km away
58/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.9★ from 15 Google reviews, listed on Google as “Computer security service”.
Based in Markham, 109 km away
58/100IFR ScoreRanked #23 because of its Google rating and service focus: 4.3★ from 254 Google reviews, listed on Google as “Computer security service”.
Based in Mississauga, 63 km away
58/100IFR ScoreRanked #24 because of its Google rating and service focus: 5.0★ from 27 Google reviews, listed on Google as “Computer security service”.
Based in Orangeville, 60 km away
58/100IFR ScoreRanked #25 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer security service”.
Cybersecurity companies 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 360 ranked cybersecurity companies here; the rest are on their profiles.
Also serving Waterloo
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 |
|---|---|---|
| APrivacy | In Waterloo | |
| Bedi IT Services Inc. | 5.0★ (32) | In Waterloo |
| CarefreeIT | 5.0★ (24) | In Waterloo |
| Competitive Edge Information Systems Inc. | 5.0★ (4) | In Waterloo |
| Data Perceptions Inc | In Waterloo | |
| DistribuCloud Technology Services | 5.0★ (32) | In Waterloo |
| Environment Technology & Instructional Support (ETIS) | 4.8★ (4) | In Waterloo |
| ezSec Inc | In Waterloo | |
| IMS | 5.0★ (1) | In Waterloo |
| Janvi Technologies | 5.0★ (1) | In Waterloo |
| Keep IT Defended | 4.7★ (3) | In Waterloo |
| Lantern Hill IT | 4.0★ (2) | In Waterloo |
| Megawire Inc. | 2.7★ (78) | In Waterloo |
| Syncora Managed Services | In Waterloo | |
| Techdot Inc | In Waterloo | |
| TechMaster Computer Service & Supply Inc. | 5.0★ (2) | In Waterloo |
| The Jennic Group | 5.0★ (37) | In Waterloo |
| The Waterloo Networking Company | 5.0★ (10) | In Waterloo |
| Vekta IT | 5.0★ (7) | In Waterloo |
| WaterlooIT | 4.6★ (35) | In Waterloo |
How we ranked Waterloo cybersecurity companies
We scored 360 Waterloo 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 Waterloo 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 Waterloo: frequently asked questions
Who is the best cybersecurity company in Waterloo?
By IFR Score, the highest-ranked cybersecurity company in Waterloo, ON is ACN TECHNOLOGY with an IFR Score of 65/100. It has 4.9★ from 322 Google reviews. It is open 7 days a week. Rhyno Cyber Security Services (#2) and Canary Trap (#3) follow. We ranked 360 cybersecurity companies on nine factors, last updated November 9, 2026.
How many cybersecurity companies are there in Waterloo?
ITFirmsRanked ranks 360 cybersecurity companies serving Waterloo, ON. 5 of them are based in Waterloo; 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 Waterloo work on weekends?
117 of 360 ranked cybersecurity companies post Saturday hours and 77 post Sunday hours. The highest-ranked open Saturdays are ACN TECHNOLOGY (#1), Rhyno Cyber Security Services (#2) and Canary Trap (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Waterloo cybersecurity companies have?
The median Google rating among 360 rated cybersecurity companies in Waterloo is 5.0★, with a median of 14 reviews. SK Computers has the most, 663 reviews, and ranks #47. 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 Waterloo count in this ranking?
Yes, if they are within 121 km of the Waterloo 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 Waterloo 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 Waterloo
- November 2026: IFR Scores recalculated for 360 cybersecurity companies serving Waterloo.
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