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Best IT Consultants in San Dimas, CA (2026)

660 IT consultants ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in San Dimas: ThinkTek, IFR Score 62/100; 5.0★ from 51 Google reviews; open 7 days a week.

  2. 9

    Most-reviewed: Apogee Computer Technologies - By Appointment Only, 890 Google reviews at 5.0★, the most of 660 ranked; ranked #9.

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

660 San Dimas IT consultants are ranked here by IFR Score, from nine published factors. 244 open Saturdays and 143 open Sundays, based on posted hours. The median Google rating is 5.0★ across 660 rated IT firms.

Top 10 IT consultants in San Dimas at a glance

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

Top 10 IT consultants in San Dimas at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1ThinkTek625.0★ (51)Irvine, 29 mi awaySat · Sun · EveningsOverall
2Sam's IT Solutions605.0★ (497)Pasadena, 19 mi awaySat · Sun · Evenings—
3GoHardDrive Inc604.4★ (249)La Puente, 11 mi away——
4The IT Professionals605.0★ (85)Buena Park, 31 mi awaySat—
5Crimson IT | Cybersecurity, Managed IT & AI Automation594.9★ (99)Los Angeles, 26 mi away——
6Agile Enterprise Management585.0★ (16)Newport Beach, 31 mi awaySat · Sun · Evenings—
7INTELI DENTAL585.0★ (7)Ontario, 15 mi awaySat · Sun · Evenings—
8Los Angeles Cabling585.0★ (4)Hollywood, 5 mi awaySat · Sun · Evenings—
9Apogee Computer Technologies - By Appointment Only585.0★ (890)Lakewood, 25 mi awaySat · EveningsMost reviews
10Excel and Access, LLC574.8★ (77)Irvine, 29 mi away——

The 660 best IT consultants in San Dimas, 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.

  1. Ranked #1 in San Dimas

    Based in Irvine, 29 mi away

    62/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 51 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 51 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2030 Main St #1300, Irvine, CA 92614
  2. Based in La Puente, 11 mi away

    60/100IFR Score

    Ranked #3 because of its Google rating and service focus: 4.4★ from 249 Google reviews, listed on Google as “Computer consultant”.

    • 4.4★ from 249 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    137 S 8th Ave, La Puente, CA 91746
  3. Based in Ontario, 15 mi away

    58/100IFR Score

    Ranked #7 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    350 S Milliken Ave Ste e, Ontario, CA 91761
  4. Based in Irvine, 29 mi away

    57/100IFR Score

    Ranked #10 because of its Google rating and service focus: 4.8★ from 77 Google reviews, listed on Google as “Computer consultant”.

    • 4.8★ from 77 Google reviews
    Hours
    Mon–Thu 8 AM–5 PM · Fri 8 AM–4 PM · Sat–Sun closed
    Address
    17880 Sky Park Cir, Irvine, CA 92614
  5. Based in Chino, 23 mi away

    57/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  6. Based in Rancho Cucamonga, 12 mi away

    57/100IFR Score

    Ranked #12 because of its Google rating and review volume: 4.9★ from 476 Google reviews.

    • 4.9★ from 476 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 9 AM–1 PM · Sun closed
    Address
    9849 Foothill Blvd S C, Rancho Cucamonga, CA 91730
  7. Based in Los Angeles, 26 mi away

    57/100IFR Score

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

    • 4.7★ from 14 Google reviews
    Hours
    Mon–Fri 7 AM–8 PM · Sat 8 AM–7 PM · Sun 11 AM–5 PM
    Address
    811 W 7th St 9th Floor , Suite #912, Los Angeles, CA 90017
  8. Based in Ontario, 14 mi away

    57/100IFR Score

    Ranked #17 because of its Google rating and service focus: 4.8★ from 27 Google reviews, listed on Google as “Computer consultant”.

    • 4.8★ from 27 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3546 Concours St Ste 125, Ontario, CA 91764
  9. Based in Coto De Caza, 32 mi away

    56/100IFR Score

    Ranked #20 because of its Google rating and service focus: 5.0★ from 22 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 22 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun closed
  10. #21 Helpt

    Based in Irvine, 32 mi away

    56/100IFR Score

    Ranked #21 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer consultant”.

    • 5.0★ from 6 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    127 Windchime, Irvine, CA 92603
  11. Based in El Monte, 13 mi away

    56/100IFR Score

    Ranked #23 because of its Google rating and review volume: 5.0★ from 247 Google reviews.

    • 5.0★ from 247 Google reviews
    Hours
    Mon 11 AM–4 PM · Tue–Fri 10 AM–5 PM · Sat 9 AM–12:30 PM · Sun closed
    Address
    4630 Santa Anita Ave, El Monte, CA 91731
  12. Based in Lomita, 37 mi away

    56/100IFR Score

    Ranked #25 because of its Google rating and review volume: 4.9★ from 356 Google reviews.

    • 4.9★ from 356 Google reviews
    Hours
    Mon–Fri 10 AM–6:30 PM · Sat 10 AM–6 PM · Sun 10 AM–5 PM
    Address
    25834 Narbonne Ave #104, Lomita, CA 90717

IT consultants 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 660 ranked IT consultants here; the rest are on their profiles.

IT consultants in San Dimas, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Digicomp LA564.6★ (86)41 mi
27NCS - Network Consulting Service565.0★ (9)22 mi
28Blink IT Solutions554.1★ (24)12 mi
29Iron Horse Computing554.6★ (10)22 mi
30Remote Computer Repair555.0★ (262)26 mi
31PC Friend Computer Performance554.9★ (165)34 mi
32Tech Expert Guys554.9★ (241)29 mi
33Onward IT555.0★ (13)14 mi
34Lenity Technology, Inc.554.9★ (13)12 mi
35General Networks Corporation554.8★ (25)25 mi
36Marquez Cable Systems554.1★ (10)19 mi
37Mac Ezpc Corporation554.8★ (251)28 mi
38Brea Networks, LLC554.4★ (16)14 mi
39Secure Data Recovery Services554.9★ (87)7 mi
40IT Solve Hub555.0★ (173)29 mi
41Smartology Tech555.0★ (8)19 mi
42MediaVision Computer Repair & IT Services555.0★ (370)22 mi
43Datastream IT555.0★ (19)26 mi
44Lexis Nexis551.7★ (13)26 mi
45Burgi Technologies | Managed IT & Cybersecurity555.0★ (75)27 mi
46US Technical Services Inc552.8★ (4)29 mi
47Tough Rugged Laptops a Rugged Computing Inc Company553.4★ (10)17 mi
48Alandata Data Recovery545.0★ (77)28 mi
49Resource Computer Solutions544.9★ (7)8 mi
50PTech545.0★ (11)16 mi

Also serving San Dimas

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

Unranked IT consultants serving San Dimas
BusinessGoogle ratingDistance
Blackish TechIn San Dimas
Brothers in Arms IT Services5.0★ (2)17 mi
Creative One Solutions LLC5.0★ (2)18 mi
Delta One Software Inc5.0★ (2)14 mi
Digit Masters, LLC5.0★ (2)19 mi
DR EnterprisesIn San Dimas
e-Mayhem LLC5.0★ (2)14 mi
Edge Secure5.0★ (2)5 mi
FedEx Office Print & Ship Center3.0★ (2)18 mi
FlexTG Los Angeles5.0★ (2)14 mi
Inland Tek Inc.In San Dimas
JPS Networking2.0★ (1)In San Dimas
NCT Communications5.0★ (2)5 mi
Netechnopia5.0★ (2)5 mi
NetSolutions IT Consulting, Inc.3.0★ (2)14 mi
OA Technology4.5★ (2)7 mi
Pacific West Communication Inc4.6★ (13)In San Dimas
SanneTech Consulting Services5.0★ (2)3 mi
TechWise Group3.0★ (2)17 mi
Voltaire Group LLCIn San Dimas

How we ranked San Dimas IT consultants

We scored 660 San Dimas IT consultants 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 San Dimas 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 an IT consultant

  1. Ask whether the consultant earns commissions or referral fees on products they recommend.
  2. Check experience with projects like yours, and ask for a sample deliverable.
  3. Agree the deliverables, timeline and price for each phase before work starts.
  4. Ask for two or three references from clients of your size and industry, and call them.
  5. Get the scope, response times and price in writing before you sign, including how you leave and get your data back.

Questions to ask an IT consultant

  • Do you receive commissions from any vendor you might recommend?
  • What will we receive at the end of the project?
  • Who will do the work, and what similar projects have they completed?
  • Do you bill hourly, per project or on retainer?
  • Will you work alongside our current IT provider?

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.

IT consultants in San Dimas: frequently asked questions

Who is the best IT consultant in San Dimas?

By IFR Score, the highest-ranked IT consultant in San Dimas, CA is ThinkTek with an IFR Score of 62/100. It has 5.0★ from 51 Google reviews. It is open 7 days a week. Sam's IT Solutions (#2) and GoHardDrive Inc (#3) follow. We ranked 660 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in San Dimas?

ITFirmsRanked ranks 660 IT consultants serving San Dimas, CA. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.

Which IT consultants in San Dimas work on weekends?

244 of 660 ranked IT consultants post Saturday hours and 143 post Sunday hours. The highest-ranked open Saturdays are ThinkTek (#1), Sam's IT Solutions (#2) and The IT Professionals (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do San Dimas IT consultants have?

The median Google rating among 660 rated IT consultants in San Dimas is 5.0★, with a median of 13 reviews. Apogee Computer Technologies - By Appointment Only has the most, 890 reviews, and ranks #9. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ITFirmsRanked rank IT consultants?

Each IT consultant 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 IT consultants outside San Dimas count in this ranking?

Yes, if they are within 50 mi of the San Dimas city center, our service radius for IT consultants. 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 IT consultants 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 an IT consultant do?

IT consultants advise on technology plans and projects: system selection, cloud migrations, budgets, security and compliance programmes, often as a part-time or virtual CIO.

How are it consultants in San Dimas ranked?

By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does IT consulting, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.

When does a business need an IT consultant rather than an IT provider?

For decisions and projects rather than day-to-day support: choosing a new system, planning a cloud move, setting an IT budget, preparing for an audit or reviewing an existing IT provider.

How do IT consultants charge?

By the hour, by the project or on a monthly retainer for ongoing virtual CIO work. Ask for a fixed price or a capped estimate on defined projects.

Update log for San Dimas

  1. November 2026: IFR Scores recalculated for 660 IT consultants serving San Dimas.
  2. November 2026: 4 duplicate listings merged.