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Best IT Consultants in Montclair, CA (2026)

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

The short answer

  1. 1

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

  2. 11

    Most-reviewed: Apogee Computer Technologies - By Appointment Only, 890 Google reviews at 5.0★, the most of 629 ranked; ranked #11.

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

629 Montclair IT consultants are ranked here by IFR Score, from nine published factors. 237 open Saturdays and 139 open Sundays, based on posted hours. The median Google rating is 5.0★ across 629 rated IT firms.

Top 10 IT consultants in Montclair at a glance

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

Top 10 IT consultants in Montclair at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1ThinkTek625.0★ (51)Irvine, 29 mi awaySat · Sun · EveningsOverall
2GoHardDrive Inc604.4★ (249)La Puente, 17 mi away——
3Sam's IT Solutions605.0★ (497)Pasadena, 26 mi awaySat · Sun · Evenings—
4The IT Professionals595.0★ (85)Buena Park, 35 mi awaySat—
5INTELI DENTAL595.0★ (7)Ontario, 8 mi awaySat · Sun · Evenings—
6Agile Enterprise Management585.0★ (16)Newport Beach, 30 mi awaySat · Sun · Evenings—
7Crimson IT | Cybersecurity, Managed IT & AI Automation584.9★ (99)Los Angeles, 32 mi away——
8NetTech Computers584.9★ (476)Rancho Cucamonga, 6 mi awaySat—
9Los Angeles Cabling585.0★ (4)Hollywood, 8 mi awaySat · Sun · Evenings—
10IT Bros585.0★ (7)Chino, 20 mi awaySat · Sun · Evenings—

The 629 best IT consultants in Montclair, 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 Montclair

    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”.

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

    • 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, 17 mi away

    60/100IFR Score

    Ranked #2 because of its Google rating and service focus: 4.4★ from 249 Google reviews, listed on Google as “Computer consultant”.

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

    • 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 Pasadena, 26 mi away

    60/100IFR Score

    Ranked #3 because of its Google rating and review volume: 5.0★ from 497 Google reviews.

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

    • 5.0★ from 497 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    35 N Lake Ave #710, Pasadena, CA 91101
  4. Based in Buena Park, 35 mi away

    59/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 85 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 85 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 9 AM–3 PM · Sun closed
  5. Based in Ontario, 8 mi away

    59/100IFR Score

    Ranked #5 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    350 S Milliken Ave Ste e, Ontario, CA 91761
  6. Based in Newport Beach, 30 mi away

    58/100IFR Score

    Ranked #6 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 16 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    5000 Birch St Tower, Suite 3000, Newport Beach, CA 92660
  7. Based in Rancho Cucamonga, 6 mi away

    58/100IFR Score

    Ranked #8 because of its Google rating and review volume: 4.9★ from 476 Google reviews.

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

    • 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
  8. Based in Hollywood, 8 mi away

    58/100IFR Score

    Ranked #9 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  9. Based in Chino, 20 mi away

    58/100IFR Score

    Ranked #10 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  10. Based in Ontario, 7 mi away

    58/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.8★ from 27 Google reviews, listed on Google as “Computer consultant”.

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

    • 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
  11. Based in Irvine, 28 mi away

    58/100IFR Score

    Ranked #13 because of its Google rating and service focus: 4.8★ from 77 Google reviews, listed on Google as “Computer consultant”.

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

    • 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
  12. Based in Riverside, 16 mi away

    57/100IFR Score

    Ranked #14 because of its Google rating and review volume: 4.9★ from 507 Google reviews.

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

    • 4.9★ from 507 Google reviews
    Hours
    Mon–Wed 1 PM–5:30 PM · Thu 8 AM–5:30 PM · Fri–Sat 1 PM–5:30 PM · Sun closed
    Address
    11153 Pierce St, Riverside, CA 92505
  13. Based in Coto De Caza, 31 mi away

    56/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 22 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 22 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun closed
  14. #18 Helpt

    Based in Irvine, 30 mi away

    56/100IFR Score

    Ranked #18 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 6 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    127 Windchime, Irvine, CA 92603
  15. Based in Ontario, 5 mi away

    56/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.1★ from 24 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.1★ from 24 Google reviews
    Hours
    Mon–Fri 8 AM–5:30 PM · Sat–Sun closed
    Address
    1395 S Vineyard Ave, Ontario, CA 91761
  16. Based in Riverside, 15 mi away

    56/100IFR Score

    Ranked #20 because of its Google rating and service focus: 4.6★ from 10 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.6★ from 10 Google reviews
    Address
    10555 Robinson Ave, Riverside, CA 92505
  17. Based in Los Angeles, 33 mi away

    56/100IFR Score

    Ranked #22 because of its Google rating and service focus: 4.7★ from 14 Google reviews, listed on Google as “Computer consultant”.

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

    • 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
  18. Based in Rancho Cucamonga, 7 mi away

    56/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 13 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 13 Google reviews
    Hours
    Mon–Fri 8:30 AM–6 PM · Sat–Sun closed
    Address
    10777 Civic Center Dr, Rancho Cucamonga, CA 91730
  19. Based in Rancho Cucamonga, 6 mi away

    56/100IFR Score

    Ranked #24 because of its Google rating and service focus: 4.9★ from 13 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.9★ from 13 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    9513 Business Center Dr H, Rancho Cucamonga, CA 91730
  20. Based in Los Angeles, 43 mi away

    56/100IFR Score

    Ranked #25 because of its Google rating and service focus: 5.0★ from 19 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 19 Google reviews
    Hours
    Mon–Sun 8 AM–6 PM
    Address
    12765 Venice Blvd. Unit 101, Los Angeles, CA 90066

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

IT consultants in Montclair, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Computer Guy565.0★ (439)43 mi
27Secure Data Recovery Services564.9★ (87)In Montclair
28Smartology Tech565.0★ (8)12 mi
29NCS - Network Consulting Service565.0★ (9)22 mi
30Tech Expert Guys554.9★ (241)28 mi
31Advanced Industrial Computer554.7★ (6)9 mi
32IT Solve Hub555.0★ (173)28 mi
33komputer kreationz555.0★ (247)19 mi
34Pacific Coast Tech554.9★ (356)41 mi
35Resource Computer Solutions554.9★ (7)2 mi
36Brea Networks, LLC554.4★ (16)16 mi
37Digicomp LA554.6★ (86)48 mi
38Marquez Cable Systems554.1★ (10)24 mi
39Burgi Technologies | Managed IT & Cybersecurity555.0★ (75)26 mi
40PC Friend Computer Performance554.9★ (165)41 mi
41Tough Rugged Laptops a Rugged Computing Inc Company553.4★ (10)17 mi
42MediaVision Computer Repair & IT Services555.0★ (370)24 mi
43Remote Computer Repair555.0★ (262)33 mi
44Alandata Data Recovery555.0★ (77)27 mi
45COMPUTEK555.0★ (7)7 mi
46US Technical Services Inc542.8★ (4)30 mi
47Mac Ezpc Corporation544.8★ (251)34 mi
48Future Computing Solutions, Inc.544.9★ (10)14 mi
49General Networks Corporation544.8★ (25)32 mi
50Jitney Co543.8★ (5)14 mi

Also serving Montclair

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 Montclair
BusinessGoogle ratingDistance
Bytewiser Data Systems, Inc. Managed IT ServicesIn Montclair
Creative One Solutions LLC5.0★ (2)20 mi
Delta One Software Inc5.0★ (2)16 mi
Dr. Rob Otto PC MD5.0★ (2)17 mi
e-Mayhem LLC5.0★ (2)16 mi
Edge Secure5.0★ (2)8 mi
Fast-Teks On-Site Computer ServicesIn Montclair
FHD Tech Solutions5.0★ (2)16 mi
FlexTG Los Angeles5.0★ (2)7 mi
IT Vizion5.0★ (2)14 mi
MH Network SolutionsIn Montclair
NCT Communications5.0★ (2)8 mi
Netechnopia5.0★ (2)6 mi
NetSolutions IT Consulting, Inc.3.0★ (2)15 mi
OA Technology4.5★ (2)13 mi
Pettit Consulting5.0★ (2)16 mi
SanneTech Consulting Services5.0★ (2)6 mi
SimpleTech5.0★ (37)In Montclair
TechWise Group3.0★ (2)18 mi
True Business InnovationIn Montclair

How we ranked Montclair IT consultants

We scored 629 Montclair 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 Montclair 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 Montclair: frequently asked questions

Who is the best IT consultant in Montclair?

By IFR Score, the highest-ranked IT consultant in Montclair, 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. GoHardDrive Inc (#2) and Sam's IT Solutions (#3) follow. We ranked 629 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in Montclair?

ITFirmsRanked ranks 629 IT consultants serving Montclair, CA. 1 of them is based in Montclair; the rest serve it from nearby towns. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.

Which IT consultants in Montclair work on weekends?

237 of 629 ranked IT consultants post Saturday hours and 139 post Sunday hours. The highest-ranked open Saturdays are ThinkTek (#1), Sam's IT Solutions (#3) 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 Montclair IT consultants have?

The median Google rating among 629 rated IT consultants in Montclair is 5.0★, with a median of 12 reviews. Apogee Computer Technologies - By Appointment Only has the most, 890 reviews, and ranks #11. 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 Montclair count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 629 IT consultants serving Montclair.
  2. November 2026: 4 duplicate listings merged.