62/100IFR Score
Ranked #1 because of its Google rating and service focus: 4.4★ from 37 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
Best Business Phone System Providers in California, MD (2026)
26 business phone system providers ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in California: Boost Mobile, IFR Score 62/100; 4.4★ from 37 Google reviews; open 7 days a week.
- 2
Most-reviewed: Sunrise Solutions, 44 Google reviews at 5.0★, the most of 26 ranked; ranked #2.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
26 California business phone system providers are ranked here by IFR Score, from nine published factors. 11 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.7★ across 26 rated IT firms.
Top 10 business phone system providers in California 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 | Boost Mobile | 62 | 4.4★ (37) | Oxon Hill, 45 mi away | Sat · Sun · Evenings | Overall |
| 2 | Sunrise Solutions | 61 | 5.0★ (44) | Annapolis, 47 mi away | — | Most reviews |
| 3 | Allied Telecom Group, LLC | 60 | 4.6★ (30) | Arlington, 49 mi away | Sat | — |
| 4 | USTECH.COM | 59 | 5.0★ (21) | Waldorf, 30 mi away | — | — |
| 5 | ABee Technologies | 59 | 4.9★ (32) | Salisbury, 48 mi away | — | — |
| 6 | Total Wireless | 59 | 3.9★ (20) | Camp Springs, 44 mi away | Sat · Sun · Evenings | — |
| 7 | SIPPIO | 57 | 4.1★ (9) | Annapolis, 47 mi away | Sat · Sun · Evenings | — |
| 8 | Cloud9 VoIP | 56 | 5.0★ (9) | Newport News, 20 mi away | — | — |
| 9 | SAINT PARAMOUNT | 54 | 4.7★ (28) | Hampton, 47 mi away | Sat · Sun · Evenings | — |
| 10 | Unlimited Connect Installations | 54 | 4.8★ (40) | Clinton, 39 mi away | Sat · Evenings | — |
The 26 best business phone system providers in California, 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 Annapolis, 47 mi away
61/100IFR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 44 Google reviews, the most in California.
Based on 8 of 9 factors; recency not yet collected.
Based in Arlington, 49 mi away
60/100IFR ScoreRanked #3 because of its Google rating and service focus: 4.6★ from 30 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
#4 USTECH.COM
Based in Waldorf, 30 mi away
59/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 21 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
Based in Salisbury, 48 mi away
59/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.9★ from 32 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
Based in Camp Springs, 44 mi away
59/100IFR ScoreRanked #6 because of its Google rating and service focus: 3.9★ from 20 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
#7 SIPPIO
Based in Annapolis, 47 mi away
57/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.1★ from 9 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
#8 Cloud9 VoIP
Based in Newport News, 20 mi away
56/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
Based in Hampton, 47 mi away
54/100IFR ScoreRanked #9 because of its Google rating and review volume: 4.7★ from 28 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Clinton, 39 mi away
54/100IFR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 40 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Lanham, 49 mi away
53/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.9★ from 9 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 8 of 9 factors; recency not yet collected.
#12 Total Wireless
Based in Landover, 49 mi away
53/100IFR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 26 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Alexandria, 46 mi away
52/100IFR ScoreRanked #13 because of its Google rating and service focus: 1.5★ from 8 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Lorton, 47 mi away
52/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.4★ from 7 Google reviews, listed on Google as “Telecommunications contractor”.
Based on 8 of 9 factors; recency not yet collected.
#15 Pro A.V. llc
Based in Accokeek, 38 mi away
51/100IFR ScoreRanked #15 because of its Google rating and review volume: 5.0★ from 20 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#16 Enuclea
Based in Cherry Hill, 47 mi away
51/100IFR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 12 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#17 Eastcomm Ltd
Based in Greater Upper Marlboro, 38 mi away
51/100IFR ScoreRanked #17 because of its Google rating and service focus: 4.0★ from 4 Google reviews, listed on Google as “Telecommunications contractor”.
Based on 8 of 9 factors; recency not yet collected.
Based in Falls Church, 50 mi away
51/100IFR ScoreRanked #18 because of its Google rating and review volume: 3.7★ from 43 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#19 None
Based in Cherry Hill, 48 mi away
50/100IFR ScoreRanked #19 because of its Google rating and service focus: 3.7★ from 3 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Greater Upper Marlboro, 40 mi away
50/100IFR ScoreRanked #20 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Telecommunications contractor”.
Based on 8 of 9 factors; recency not yet collected.
Based in Lorton, 47 mi away
50/100IFR ScoreRanked #21 because of its Google rating and service focus: 1.0★ from 3 Google reviews, listed on Google as “Telecommunications service provider”.
Based on 7 of 9 factors; recency and availability not yet collected.
#22 Secur3iT
Based in Greater Upper Marlboro, 47 mi away
49/100IFR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 21 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#23 Astound
Based in Lanham, 48 mi away
49/100IFR ScoreRanked #23 because of its Google rating and review volume: 3.3★ from 30 Google reviews.
Based on 7 of 9 factors; recency and availability not yet collected.
#24 Total Wireless
Based in Oxon Hill, 44 mi away
48/100IFR ScoreRanked #24 because of its Google rating and review volume: 3.8★ from 10 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Greater Upper Marlboro, 37 mi away
48/100IFR ScoreRanked #25 because of its Google rating and review volume: 4.7★ from 14 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
All 26 business phone system providers
#1 to #25 are shown in full above. Here are #26 to #26, in IFR Score order; each links to its profile.
| Rank | Business | IFR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | McMurdo Group | 41 | 5.0★ (3) | 48 mi |
Also serving California
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.
| Business | Google rating | Distance |
|---|---|---|
| Advanced Telecom | 5.0★ (1) | 49 mi |
| AirStrike IT Solutions | 5.0★ (2) | 30 mi |
| American Cabling Company | 3.5★ (2) | 44 mi |
| Apex Communications Corporation | 1.0★ (1) | 48 mi |
| BW Communications | 5.0★ (2) | 46 mi |
| Cannon Communications Inc | 5.0★ (1) | 49 mi |
| COMNEXIA Corporation | 5.0★ (1) | 50 mi |
| Evurge Solutions | 5.0★ (1) | 49 mi |
| FonAngle Communications | 5.0★ (1) | 50 mi |
| Futron Inc | 5.0★ (1) | 50 mi |
| G Tech Contracting LLC | 5.0★ (2) | 34 mi |
| Level 3 Communications | 1.0★ (1) | 48 mi |
| LS telcom, inc. | 5.0★ (1) | 47 mi |
| Maloney Telecom, Inc. | 5.0★ (1) | 50 mi |
| OnMax Solution Corporate Office | 5.0★ (2) | 48 mi |
| Telework Coalition | 4.0★ (1) | 49 mi |
| TelNet - Network Cabling Contractor of Washington DC | 5.0★ (1) | 49 mi |
| Total Wireless | 3.0★ (2) | 44 mi |
| Washington Network Inc | 5.0★ (1) | 47 mi |
| Wycliffe Technologies | 3.0★ (2) | 48 mi |
How we ranked California business phone system providers
We scored 26 California 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 California 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 California: frequently asked questions
Who is the best business phone system provider in California?
By IFR Score, the highest-ranked business phone system provider in California, MD is Boost Mobile with an IFR Score of 62/100. It has 4.4★ from 37 Google reviews. It is open 7 days a week. Sunrise Solutions (#2) and Allied Telecom Group, LLC (#3) follow. We ranked 26 business phone system providers on nine factors, last updated November 9, 2026.
How many business phone system providers are there in California?
ITFirmsRanked ranks 26 business phone system providers serving California, MD. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.
Which business phone system providers in California work on weekends?
11 of 26 ranked business phone system providers post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are Boost Mobile (#1), Allied Telecom Group, LLC (#3) and Total Wireless (#6). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do California business phone system providers have?
The median Google rating among 26 rated business phone system providers in California is 4.7★, with a median of 17 reviews. Sunrise Solutions has the most, 44 reviews, and ranks #2. 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 California count in this ranking?
Yes, if they are within 50 mi of the California 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 California 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 California
- November 2026: IFR Scores recalculated for 26 business phone system providers serving California.
More business phone system providers and California pages
Business phone system providers near California
- Business phone system providers in Lexington Park, MD16 ranked
- Business phone system providers in Chesapeake Ranch Estates, MD23 ranked
- Business phone system providers in Cambridge, MD22 ranked
- Business phone system providers in St. Charles, MD159 ranked
- Business phone system providers in Saint Charles, MD157 ranked
- Business phone system providers in Waldorf, MD159 ranked
- Business phone system providers in Bennsville, MD154 ranked
- Business phone system providers in Rosaryville, MD176 ranked
- Business phone system providers in Accokeek, MD160 ranked
- Business phone system providers in Clinton, MD177 ranked
Other services in California
- Managed IT service providers in California112 ranked
- Cybersecurity companies in California345 ranked
- IT consultants in California86 ranked
- Network cabling and installation companies in California10 ranked
- Data recovery services in California53 ranked
- Computer repair shops in California8 ranked
- All IT providers in California