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Best Business Phone System Providers in Stevenson Ranch, CA (2026)

237 business phone system providers ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Stevenson Ranch: BAI Connect, IFR Score 67/100; 4.8★ from 5,561 Google reviews.

  2. 9

    Most-reviewed: Cellphone Guys, 234 Google reviews at 4.5★, the most of 237 ranked after BAI Connect; ranked #9.

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

237 Stevenson Ranch business phone system providers are ranked here by IFR Score, from nine published factors. 123 open Saturdays and 102 open Sundays, based on posted hours. The median Google rating is 4.9★ across 237 rated IT firms.

Top 10 business phone system providers in Stevenson Ranch at a glance

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

Top 10 business phone system providers in Stevenson Ranch at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1BAI Connect674.8★ (5,561)Sherman Oaks, 17 mi away—Overall
2SmarterHome.ai - Compare Local Internet Deals625.0★ (124)Burbank, 12 mi awaySat · Sun · Evenings—
3Ringaro Telecom605.0★ (66)Oxnard, 26 mi awaySat · Sun · Evenings—
4Total Wireless605.0★ (202)Hawthorne, 36 mi awaySat · Sun · Evenings—
5Easier Communications605.0★ (31)Canoga Park, 13 mi awaySat · Sun · Evenings—
6Digico Wiring and Installation605.0★ (87)Los Angeles, 24 mi awaySat · Sun · Evenings—
7Tierzero Business Phones & Internet594.9★ (66)Los Angeles, 30 mi awaySat · Sun · Evenings—
8CoreSite Los Angeles Data Center (LA2)594.5★ (111)Los Angeles, 30 mi awaySat · Sun · Evenings—
9Cellphone Guys594.5★ (234)Valley Glen, 18 mi awaySun · EveningsMost reviews
10Boost Mobile594.7★ (155)Inglewood, 33 mi awaySat · Sun · Evenings—

The 237 best business phone system providers in Stevenson Ranch, 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 Stevenson Ranch

    Based in Sherman Oaks, 17 mi away

    67/100IFR Score

    Ranked #1 because of its Google rating and review volume: 4.8★ from 5,561 Google reviews, the most in Stevenson Ranch.

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

    • 4.8★ from 5,561 Google reviews
    Address
    15301 Ventura Blvd #220, Sherman Oaks, CA 91403
  2. Based in Oxnard, 26 mi away

    60/100IFR Score

    Ranked #3 because of its Google rating and service focus: 5.0★ from 66 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 66 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  3. Based in Hawthorne, 36 mi away

    60/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 202 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 202 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    3890 W Rosecrans Ave, Hawthorne, CA 90250
  4. Based in Canoga Park, 13 mi away

    60/100IFR Score

    Ranked #5 because of its Google rating and service focus: 5.0★ from 31 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 31 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    22048 Sherman Way #314, Canoga Park, CA 91303
  5. Based in Valley Glen, 18 mi away

    59/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.5★ from 234 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.5★ from 234 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat closed · Sun 10 AM–6 PM
    Address
    12501 Burbank Blvd #1, Valley Village, CA 91607
  6. Based in Inglewood, 33 mi away

    59/100IFR Score

    Ranked #10 because of its Google rating and service focus: 4.7★ from 155 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.7★ from 155 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    305 W Arbor Vitae St B, Inglewood, CA 90301
  7. Based in Los Angeles, 29 mi away

    58/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 60 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 60 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun 9 AM–5 PM
    Address
    705 S Alvarado St, Los Angeles, CA 90057
  8. Based in Woodland Hills, 15 mi away

    58/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.9★ from 146 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.9★ from 146 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    5950 Canoga Ave #530, Woodland Hills, CA 91367
  9. Based in Oxnard, 37 mi away

    58/100IFR Score

    Ranked #13 because of its Google rating and service focus: 4.7★ from 141 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.7★ from 141 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    1964 N Ventura Rd, Oxnard, CA 93036
  10. Based in Oxnard, 38 mi away

    58/100IFR Score

    Ranked #14 because of its Google rating and service focus: 4.7★ from 128 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.7★ from 128 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    3638 Saviers Rd, Oxnard, CA 93033
  11. Based in Northridge, 12 mi away

    58/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 42 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 42 Google reviews
    Hours
    Mon–Fri 10 AM–6 PM · Sat 10 AM–2 PM · Sun closed
    Address
    8415 Reseda Blvd Suite 2, Northridge, CA 91324
  12. #16 Telzio

    Based in Beverly Hills, 24 mi away

    57/100IFR Score

    Ranked #16 because of its Google rating and service focus: 5.0★ from 111 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 111 Google reviews
    Hours
    Mon–Fri 5 AM–5 PM · Sat–Sun closed
    Address
    407 N Maple Dr Ste GRD1, Beverly Hills, CA 90210
  13. Based in Los Angeles, 28 mi away

    57/100IFR Score

    Ranked #17 because of its Google rating and service focus: 4.6★ from 63 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.6★ from 63 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    827 S Vermont Ave, Los Angeles, CA 90005
  14. #18 VOaaS

    Based in Pasadena, 30 mi away

    57/100IFR Score

    Ranked #18 because of its Google rating and service focus: 5.0★ from 68 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 68 Google reviews
    Hours
    Mon–Sat 8 AM–8 PM · Sun closed
    Address
    36 W Colorado Blvd Ste 3B, Pasadena, CA 91105
  15. Based in North Hollywood, 19 mi away

    57/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.1★ from 67 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.1★ from 67 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun 9 AM–5 PM
    Address
    10869 Oxnard St, North Hollywood, CA 91606
  16. Based in Chatsworth, 10 mi away

    57/100IFR Score

    Ranked #20 because of its Google rating and service focus: 4.8★ from 63 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.8★ from 63 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    9420 CA-27 #100, Chatsworth, CA 91311
  17. Based in Oxnard, 35 mi away

    56/100IFR Score

    Ranked #22 because of its Google rating and service focus: 5.0★ from 59 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 59 Google reviews
    Hours
    Mon–Fri 8 AM–10 PM · Sat 10 AM–8 PM · Sun closed
  18. Based in El Monte, 36 mi away

    56/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 106 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 106 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    3360 Flair Dr #221, El Monte, CA 91731
  19. Based in Los Angeles, 30 mi away

    56/100IFR Score

    Ranked #24 because of its Google rating and service focus: 4.8★ from 11 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.8★ from 11 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    530 W 6th St Ste 903, Los Angeles, CA 90014
  20. Based in Inglewood, 35 mi away

    56/100IFR Score

    Ranked #25 because of its Google rating and service focus: 4.5★ from 45 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.5★ from 45 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    11336 S Crenshaw Blvd, Inglewood, CA 90303

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 237 ranked business phone system providers here; the rest are on their profiles.

business phone system providers in Stevenson Ranch, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26iTalkBB San Gabriel Store554.3★ (54)35 mi
27iTalkBB Hacienda Heights554.7★ (56)46 mi
28Peak PTT555.0★ (19)5 mi
29Dove Communications Inc VoIP Phones Security Cameras IT Data Cabling555.0★ (76)32 mi
30Intelligent IT555.0★ (34)15 mi
31SmarterHome.ai - Compare Local Internet Deals555.0★ (6)13 mi
32Total Wireless555.0★ (22)36 mi
33Total Wireless554.9★ (8)16 mi
34Total Wireless554.8★ (24)34 mi
35Datatel Network Cabling555.0★ (21)24 mi
36Boost Mobile Store554.6★ (32)38 mi
37Total Wireless554.7★ (15)27 mi
38Aitelephone.Com555.0★ (5)24 mi
39Boost Mobile554.4★ (58)43 mi
40Ricos Telecommunication Network555.0★ (5)27 mi
41Espinoza Installations544.4★ (20)32 mi
42Flagman Telecom545.0★ (35)25 mi
43ITS - Integrated Telemanagement Services544.6★ (47)22 mi
44iTalkBB Rowland Heights544.5★ (44)48 mi
45Total Wireless544.8★ (31)49 mi
46CallSource544.5★ (34)19 mi
47Access Cabling545.0★ (4)30 mi
48Boost Mobile543.7★ (34)30 mi
49Atkal Communications544.6★ (18)9 mi
50RingVantage VOIP Los Angeles545.0★ (6)14 mi

Also serving Stevenson Ranch

20 more business phone system providers within 50 mi that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.

Unranked business phone system providers serving Stevenson Ranch
BusinessGoogle ratingDistance
ACT USA5.0★ (2)26 mi
BluIP1.0★ (2)24 mi
Charter Inc3.0★ (2)24 mi
Computer Guy5.0★ (439)In Stevenson Ranch
ConnectTo Communications1.0★ (2)25 mi
Day Wireless Systems5.0★ (2)20 mi
DTC (Digital Telecommunications Corporation)5.0★ (2)3 mi
Electronic Technology4.5★ (2)27 mi
GTI Corporation - DBA GTI Telecom Services1.5★ (2)24 mi
IH Communications5.0★ (2)9 mi
National Wiretec CommunicationIn Stevenson Ranch
PITS Data Recovery4.3★ (6)In Stevenson Ranch
Protect Burbank- Security Camera, Phone System, IT Support & Service California5.0★ (2)22 mi
Secure InMotion5.0★ (1)In Stevenson Ranch
Sherman Oaks Phone RepairIn Stevenson Ranch
TekWeb SolutionsIn Stevenson Ranch
The Chip5.0★ (3)In Stevenson Ranch
Total Wireless5.0★ (2)13 mi
Wireless Support5.0★ (2)10 mi
Xcast Labs, Inc.3.0★ (2)25 mi

How we ranked Stevenson Ranch business phone system providers

We scored 237 Stevenson Ranch 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.

Read the full method: formula, sources and exclusions

IFR Score factors and weights
FactorWeightComputed fromIn Stevenson Ranch 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 a business phone system provider

  1. Ask whether the system is cloud-hosted or installed on site, and who maintains it.
  2. Check internet capacity and backup: a cloud phone system stops when your connection does.
  3. Ask how 911 locations are registered for each phone and for remote staff.
  4. Compare per-user prices on the same features (call recording, queues, integrations).
  5. Ask for two or three references from clients of your size and industry, and call them.
  6. 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 Stevenson Ranch: frequently asked questions

Who is the best business phone system provider in Stevenson Ranch?

By IFR Score, the highest-ranked business phone system provider in Stevenson Ranch, CA is BAI Connect with an IFR Score of 67/100. It has 4.8★ from 5,561 Google reviews. SmarterHome.ai - Compare Local Internet Deals (#2) and Ringaro Telecom (#3) follow. We ranked 237 business phone system providers on nine factors, last updated November 9, 2026.

How many business phone system providers are there in Stevenson Ranch?

ITFirmsRanked ranks 237 business phone system providers serving Stevenson Ranch, CA. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.

Which business phone system providers in Stevenson Ranch work on weekends?

123 of 237 ranked business phone system providers post Saturday hours and 102 post Sunday hours. The highest-ranked open Saturdays are SmarterHome.ai - Compare Local Internet Deals (#2), Ringaro Telecom (#3) and Total Wireless (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Stevenson Ranch business phone system providers have?

The median Google rating among 237 rated business phone system providers in Stevenson Ranch is 4.9★, with a median of 12 reviews. BAI Connect has the most, 5,561 reviews, and ranks #1. 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 Stevenson Ranch count in this ranking?

Yes, if they are within 50 mi of the Stevenson Ranch city center, 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 Stevenson Ranch 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 Stevenson Ranch

  1. November 2026: IFR Scores recalculated for 237 business phone system providers serving Stevenson Ranch.
  2. November 2026: 1 duplicate listing merged.