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Best Business Phone System Providers in Commerce, CA (2026)

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

The short answer

  1. 1

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

  2. 2

    Most-reviewed: Call Tools, 1,134 Google reviews at 5.0★, the most of 359 ranked after BAI Connect; ranked #2.

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

359 Commerce business phone system providers are ranked here by IFR Score, from nine published factors. 171 open Saturdays and 140 open Sundays, based on posted hours. The median Google rating is 4.9★ across 359 rated IT firms.

Most of this list also appears on the Business phone system providers in Los Angeles ranking. See Business phone system providers in Los Angeles

Top 10 business phone system providers in Commerce 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 Commerce at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1BAI Connect674.8★ (5,561)Sherman Oaks, 21 mi away—Overall
2Call Tools655.0★ (1,134)Irvine, 28 mi awaySat · SunMost reviews
3Total Wireless635.0★ (202)Hawthorne, 12 mi awaySat · Sun · Evenings—
4LAN WAN Enterprise - IT Services In Orange County & Irvine625.0★ (174)Irvine, 28 mi awaySat · Sun · Evenings—
5Tierzero Business Phones & Internet624.9★ (66)Los Angeles, 7 mi awaySat · Sun · Evenings—
6CoreSite Los Angeles Data Center (LA2)624.5★ (111)Los Angeles, 6 mi awaySat · Sun · Evenings—
7Boost Mobile614.7★ (155)Inglewood, 12 mi awaySat · Sun · Evenings—
8Digico Wiring and Installation615.0★ (87)Los Angeles, 13 mi awaySat · Sun · Evenings—
9Total Wireless615.0★ (60)Los Angeles, 8 mi awaySat · Sun · Evenings—
10SmarterHome.ai - Compare Local Internet Deals605.0★ (124)Burbank, 24 mi awaySat · Sun · Evenings—

The 359 best business phone system providers in Commerce, 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 Commerce

    Based in Sherman Oaks, 21 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 Commerce.

    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 Irvine, 28 mi away

    65/100IFR Score

    Ranked #2 because of its Google rating and service focus: 5.0★ from 1,134 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 1,134 Google reviews
    Hours
    Mon–Fri 5 AM–5 PM · Sat–Sun 7 AM–4 PM
    Address
    16842 Von Karman Ave Ste 475, Irvine, CA 92606
  3. Based in Hawthorne, 12 mi away

    63/100IFR Score

    Ranked #3 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. 62/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 174 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 174 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    17500 Red Hill Ave Ste 120, Irvine, CA 92614
  5. Based in Inglewood, 12 mi away

    61/100IFR Score

    Ranked #7 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
  6. Based in Los Angeles, 8 mi away

    61/100IFR Score

    Ranked #9 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
  7. Based in Westminster, 21 mi away

    60/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 93 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 93 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    9928 Bolsa Ave, Westminster, CA 92683
  8. Based in Los Angeles, 9 mi away

    59/100IFR Score

    Ranked #12 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
  9. Based in Oxnard, 34 mi away

    59/100IFR Score

    Ranked #13 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
  10. #14 VOaaS

    Based in Pasadena, 10 mi away

    59/100IFR Score

    Ranked #14 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
  11. Based in Hacienda Heights, 13 mi away

    59/100IFR Score

    Ranked #15 because of its Google rating and service focus: 4.7★ from 56 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.7★ from 56 Google reviews
    Hours
    Mon–Sun 10 AM–7 PM
    Address
    17120 Colima Rd Ste 104, Hacienda Heights, CA 91745
  12. Based in El Monte, 7 mi away

    59/100IFR Score

    Ranked #16 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
  13. Based in Valley Glen, 18 mi away

    59/100IFR Score

    Ranked #17 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
  14. Based in Rosemead, 6 mi away

    58/100IFR Score

    Ranked #18 because of its Google rating and service focus: 5.0★ from 22 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 22 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun 11 AM–5 PM
    Address
    8150 Garvey Ave #122i, Rosemead, CA 91770
  15. Based in San Gabriel, 6 mi away

    58/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.3★ from 54 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.3★ from 54 Google reviews
    Hours
    Mon–Sun 10 AM–7 PM
    Address
    140 W Valley Blvd #150, San Gabriel, CA 91776
  16. #20 Telzio

    Based in Beverly Hills, 14 mi away

    58/100IFR Score

    Ranked #20 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
  17. Based in Los Angeles, 5 mi away

    58/100IFR Score

    Ranked #21 because of its Google rating and service focus: 4.8★ from 24 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.8★ from 24 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
    Address
    1500 E Florence Ave Unit B, Los Angeles, CA 90001
  18. Based in Inglewood, 11 mi away

    58/100IFR Score

    Ranked #22 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
  19. Based in Anaheim, 17 mi away

    58/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 5.0★ from 34 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 12 PM–5 PM
    Address
    1284 S Magnolia Ave, Anaheim, CA 92804
  20. Based in Los Angeles, 6 mi away

    58/100IFR 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
  21. Based in El Monte, 9 mi away

    58/100IFR Score

    Ranked #25 because of its Google rating and service focus: 4.6★ from 32 Google reviews, listed on Google as “Telecommunications service provider”.

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

    • 4.6★ from 32 Google reviews
    Hours
    Mon–Sat 10 AM–7 PM · Sun 10 AM–5:30 PM
    Address
    10930 Main St, El Monte, CA 91731

How we ranked Commerce business phone system providers

We scored 359 Commerce 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 Commerce 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 Commerce: frequently asked questions

Who is the best business phone system provider in Commerce?

By IFR Score, the highest-ranked business phone system provider in Commerce, CA is BAI Connect with an IFR Score of 67/100. It has 4.8★ from 5,561 Google reviews. Call Tools (#2) and Total Wireless (#3) follow. We ranked 359 business phone system providers on nine factors, last updated November 9, 2026.

How many business phone system providers are there in Commerce?

ITFirmsRanked ranks 359 business phone system providers serving Commerce, CA. Counts are as of November 2026.

Which business phone system providers in Commerce work on weekends?

171 of 359 ranked business phone system providers post Saturday hours and 140 post Sunday hours. The highest-ranked open Saturdays are Call Tools (#2), Total Wireless (#3) and LAN WAN Enterprise - IT Services In Orange County & Irvine (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Commerce business phone system providers have?

The median Google rating among 359 rated business phone system providers in Commerce is 4.9★, with a median of 13 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 Commerce count in this ranking?

Yes, if they are within 50 mi of the Commerce 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 Commerce 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 Commerce

  1. November 2026: IFR Scores recalculated for 359 business phone system providers serving Commerce.
  2. November 2026: 1 duplicate listing merged.