63/100IFR Score
Ranked #1 because of its Google rating and service focus: 4.7★ from 388 Google reviews, listed on Google as “Telecommunications service provider”.
Best Business Phone System Providers in Oshawa, ON (2026)
271 business phone system providers ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Oshawa: Bell, IFR Score 63/100; 4.7★ from 388 Google reviews; open 7 days a week.
- 32
Most-reviewed: Comwave Networks Inc., 4,795 Google reviews at 3.4★, the most of 271 ranked; ranked #32.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
271 Oshawa business phone system providers are ranked here by IFR Score, from nine published factors. 124 open Saturdays and 101 open Sundays, based on posted hours. The median Google rating is 4.7★ across 271 rated IT firms.
Top 10 business phone system providers in Oshawa 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 | Bell | 63 | 4.7★ (388) | Pickering, 20 km away | Sat · Sun · Evenings | Overall |
| 2 | Virgin Plus | 62 | 4.5★ (286) | Oshawa | Sat · Sun · Evenings | — |
| 3 | CanadianSIM | 62 | 4.9★ (1,903) | North York, 47 km away | — | — |
| 4 | Beanfield | 61 | 4.4★ (701) | Toronto, 55 km away | Sat · Sun · Evenings | — |
| 5 | Bell | 61 | 4.3★ (850) | Scarborough, 36 km away | Sat · Sun · Evenings | — |
| 6 | Bell | 61 | 4.4★ (547) | Markham, 35 km away | Sat · Sun · Evenings | — |
| 7 | Bell | 61 | 4.0★ (404) | Oshawa | Sat · Sun · Evenings | — |
| 8 | Bell | 60 | 4.5★ (502) | Vaughan, 56 km away | Sat · Sun · Evenings | — |
| 9 | Virgin Plus | 60 | 4.5★ (261) | Scarborough, 36 km away | Sat · Sun · Evenings | — |
| 10 | Bell | 60 | 4.3★ (194) | Ajax, 15 km away | Sat · Sun · Evenings | — |
The 271 best business phone system providers in Oshawa, 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.
#2 Virgin Plus
Based in Oshawa
62/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.5★ from 286 Google reviews, listed on Google as “Telecommunications service provider”.
#3 CanadianSIM
Based in North York, 47 km away
62/100IFR ScoreRanked #3 because of its Google rating and service focus: 4.9★ from 1,903 Google reviews, listed on Google as “Telecommunications service provider”.
#4 Beanfield
Based in Toronto, 55 km away
61/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.4★ from 701 Google reviews, listed on Google as “Telecommunications service provider”.
#5 Bell
Based in Scarborough, 36 km away
61/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.3★ from 850 Google reviews, listed on Google as “Telecommunications service provider”.
#6 Bell
Based in Markham, 35 km away
61/100IFR ScoreRanked #6 because of its Google rating and service focus: 4.4★ from 547 Google reviews, listed on Google as “Telecommunications service provider”.
#7 Bell
Based in Oshawa
61/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.0★ from 404 Google reviews, listed on Google as “Telecommunications service provider”.
#8 Bell
Based in Vaughan, 56 km away
60/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.5★ from 502 Google reviews, listed on Google as “Telecommunications service provider”.
#9 Virgin Plus
Based in Scarborough, 36 km away
60/100IFR ScoreRanked #9 because of its Google rating and service focus: 4.5★ from 261 Google reviews, listed on Google as “Telecommunications service provider”.
#10 Bell
Based in Ajax, 15 km away
60/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.3★ from 194 Google reviews, listed on Google as “Telecommunications service provider”.
#11 Bell
Based in Richmond Hill, 47 km away
60/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.4★ from 445 Google reviews, listed on Google as “Telecommunications service provider”.
Based in Markham, 40 km away
59/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.5★ from 262 Google reviews, listed on Google as “Telecommunications service provider”.
#13 Ombrex Telecom
Based in Mississauga, 68 km away
59/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.9★ from 219 Google reviews, listed on Google as “Telecommunications service provider”.
#14 Freedom Mobile
Based in Scarborough, 36 km away
58/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.0★ from 458 Google reviews, listed on Google as “Telecommunications service provider”.
Based in North York, 52 km away
58/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.9★ from 98 Google reviews, listed on Google as “Telecommunications service provider”.
Based in Toronto, 44 km away
58/100IFR ScoreRanked #16 because of its Google rating and service focus: 4.1★ from 319 Google reviews, listed on Google as “Telecommunications service provider”.
Based in Aurora, 47 km away
58/100IFR ScoreRanked #17 because of its Google rating and service focus: 4.8★ from 322 Google reviews, listed on Google as “Telecommunications service provider”.
#18 Koodo Shop
Based in Scarborough, 36 km away
57/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.1★ from 187 Google reviews, listed on Google as “Telecommunications service provider”.
#19 chatr Mobile
Based in Brampton, 78 km away
57/100IFR ScoreRanked #19 because of its Google rating and service focus: 4.5★ from 318 Google reviews, listed on Google as “Telecommunications service provider”.
#20 CyberQA Inc.
Based in East York, 43 km away
57/100IFR ScoreRanked #20 because of its Google rating and service focus: 5.0★ from 33 Google reviews, listed on Google as “Telecommunications service provider”.
#21 Bell
Based in Toronto, 52 km away
57/100IFR ScoreRanked #21 because of its Google rating and service focus: 4.2★ from 235 Google reviews, listed on Google as “Telecommunications service provider”.
#22 PeerOne VoIP
Based in Aurora, 31 km away
57/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.8★ from 48 Google reviews, listed on Google as “Telecommunications service provider”.
#23 Bell
Based in Newmarket, 54 km away
57/100IFR ScoreRanked #23 because of its Google rating and service focus: 4.1★ from 287 Google reviews, listed on Google as “Telecommunications service provider”.
Based in Markham, 37 km away
57/100IFR ScoreRanked #24 because of its Google rating and service focus: 4.2★ from 128 Google reviews, listed on Google as “Telecommunications service provider”.
#25 Bell
Based in Oshawa
57/100IFR ScoreRanked #25 because of its Google rating and service focus: 3.6★ from 114 Google reviews, listed on Google as “Telecommunications service provider”.
Business phone system providers 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 271 ranked business phone system providers here; the rest are on their profiles.
| Rank | Business | IFR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Coextro | 57 | 4.4★ (1,207) | 70 km |
| 27 | Bell | 56 | 4.1★ (480) | 72 km |
| 28 | TechMinds | 56 | 4.8★ (65) | 56 km |
| 29 | Value Mobile | 56 | 4.9★ (55) | 54 km |
| 30 | GTA TV Wall Mounting | 56 | 5.0★ (910) | 47 km |
| 31 | Bell | 56 | 4.0★ (192) | 50 km |
| 32 | Comwave Networks Inc. | 56 | 3.4★ (4,795) | 53 km |
| 33 | Bell (Upper Level) | 56 | 4.2★ (225) | 72 km |
| 34 | Bell | 56 | 4.0★ (167) | 51 km |
| 35 | Tech Connect - Bell Authorized Dealers | 56 | 4.9★ (73) | 74 km |
| 36 | Melo Technology | 56 | 4.9★ (133) | 51 km |
| 37 | JP Cabling Solutions | 55 | 5.0★ (25) | 38 km |
| 38 | networkingguy | 55 | 5.0★ (24) | 36 km |
| 39 | Bell | 55 | 4.1★ (268) | 76 km |
| 40 | SE Telecom | 55 | 4.9★ (105) | 49 km |
| 41 | NetEx Technologies | 55 | 5.0★ (61) | 79 km |
| 42 | GTA Networking Solutions | 55 | 5.0★ (28) | 46 km |
| 43 | Callture Communications Inc | 55 | 4.5★ (314) | 65 km |
| 44 | Unite Communications | 55 | 4.5★ (141) | 39 km |
| 45 | Bell | 55 | 4.0★ (120) | 31 km |
| 46 | SyncTO Systems | 54 | 5.0★ (18) | 36 km |
| 47 | Traverse Telecom Inc | 54 | 4.9★ (16) | 51 km |
| 48 | Sialk Inc. | 54 | 4.8★ (26) | 47 km |
| 49 | Bell | 54 | 4.2★ (81) | 63 km |
| 50 | Inter-Active Telecom Inc. | 54 | 3.9★ (7) | In Oshawa |
Also serving Oshawa
20 more business phone system providers 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 |
|---|---|---|
| Accord Reconnection Services | 5.0★ (2) | 42 km |
| ADD Communications Inc. | 5.0★ (2) | 43 km |
| Alybrook Technologies Inc. | 5.0★ (1) | In Oshawa |
| CellTower Telecom Inc | 5.0★ (2) | 42 km |
| Cignaltec Communications | 5.0★ (2) | In Oshawa |
| Comtech Solutions Canada | In Oshawa | |
| Dedicated access | 5.0★ (2) | 40 km |
| Future Tech | 4.9★ (1,233) | In Oshawa |
| Gold Leaf Telecom Ltd | 3.0★ (2) | 43 km |
| IQRA Electronics | 4.4★ (65) | In Oshawa |
| JR Capital Contracting | In Oshawa | |
| My Own IT | In Oshawa | |
| Node-1 Computers Inc. | 4.8★ (38) | In Oshawa |
| RC Telecommunications Inc. | 5.0★ (2) | 45 km |
| SIMNET - Cloud & Cybersecurity Solutions | 4.9★ (11) | In Oshawa |
| Stable Technical Services | 5.0★ (2) | 24 km |
| Star Telecom | 5.0★ (2) | 47 km |
| TEL-SYSTEMS INC | 3.0★ (2) | 33 km |
| Voicenetpulse Telecom Inc. | In Oshawa | |
| Wireless Guru | 1.0★ (2) | 47 km |
How we ranked Oshawa business phone system providers
We scored 271 Oshawa business phone system providers 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 Oshawa 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 business phone system provider
- Ask whether the system is cloud-hosted or installed on site, and who maintains it.
- Check internet capacity and backup: a cloud phone system stops when your connection does.
- Ask how 911 locations are registered for each phone and for remote staff.
- Compare per-user prices on the same features (call recording, queues, integrations).
- 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 business phone system provider
- Is the price per user, and which features are extra?
- Will you port our existing numbers, and how long does it take?
- What happens to calls if our internet connection goes down?
- How are 911 locations set up for office and remote staff?
- Who do we call for support, and during which hours?
- What is the contract length, and are phones bought or leased?
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.
Business phone system providers in Oshawa: frequently asked questions
Who is the best business phone system provider in Oshawa?
By IFR Score, the highest-ranked business phone system provider in Oshawa, ON is Bell with an IFR Score of 63/100. It has 4.7★ from 388 Google reviews. It is open 7 days a week. Virgin Plus (#2) and CanadianSIM (#3) follow. We ranked 271 business phone system providers on nine factors, last updated November 9, 2026.
How many business phone system providers are there in Oshawa?
ITFirmsRanked ranks 271 business phone system providers serving Oshawa, ON. 4 of them are based in Oshawa; 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 business phone system providers in Oshawa work on weekends?
124 of 271 ranked business phone system providers post Saturday hours and 101 post Sunday hours. The highest-ranked open Saturdays are Bell (#1), Virgin Plus (#2) and Beanfield (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Oshawa business phone system providers have?
The median Google rating among 271 rated business phone system providers in Oshawa is 4.7★, with a median of 20 reviews. Comwave Networks Inc. has the most, 4,795 reviews, and ranks #32. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ITFirmsRanked rank business phone system providers?
Each business phone system provider 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 business phone system providers outside Oshawa count in this ranking?
Yes, if they are within 80 km of the Oshawa city centre, our service radius for business phone system providers. 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 business phone system providers 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 business phone system provider do?
Business phone system providers set up and support office phone systems, mostly cloud VoIP today: numbers, desk phones, call routing, voicemail and contact-centre features.
How are business phone system providers in Oshawa ranked?
By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does business phone systems and VoIP, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.
Can we keep our phone numbers if we switch providers?
In most cases yes: numbers can be ported to a new provider in the US and Canada. Keep your current service active until the port is complete, and ask the new provider to manage the port request.
What about 911 calls on a VoIP system?
Each phone needs a registered location so 911 calls go to the right place. In the US, multi-line systems must support direct 911 dialling and send dispatchable location information under federal rules (Kari’s Law and RAY BAUM’S Act). Ask the provider how they set this up.
Update log for Oshawa
- November 2026: IFR Scores recalculated for 271 business phone system providers serving Oshawa.
- November 2026: 1 duplicate listing merged.
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