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Best IT Consultants in Crestline, CA (2026)

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

The short answer

  1. 1

    Best overall in Crestline: Sam's IT Solutions, IFR Score 58/100; 5.0★ from 497 Google reviews; open 7 days a week.

  2. 6

    Most-reviewed: Wo Phone Design Computer Plus, 507 Google reviews at 4.9★, the most of 287 ranked; ranked #6.

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

287 Crestline IT consultants are ranked here by IFR Score, from nine published factors. 109 open Saturdays and 57 open Sundays, based on posted hours. The median Google rating is 4.9★ across 287 rated IT firms.

Top 10 IT consultants in Crestline at a glance

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

Top 10 IT consultants in Crestline at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Sam's IT Solutions585.0★ (497)Pasadena, 49 mi awaySat · Sun · EveningsOverall
2INTELI DENTAL585.0★ (7)Ontario, 20 mi awaySat · Sun · Evenings—
3GoHardDrive Inc584.4★ (249)La Puente, 42 mi away——
4NetTech Computers574.9★ (476)Rancho Cucamonga, 20 mi awaySat—
5PC FIX574.9★ (170)Victorville, 17 mi awaySat · Sun—
6Wo Phone Design Computer Plus574.9★ (507)Riverside, 25 mi awaySatMost reviews
7Acorn IT Services564.8★ (27)Ontario, 20 mi away——
8Restart Computer Solutions & In- Home Service564.9★ (180)San Bernardino, 7 mi awaySat · Evenings—
9IT Bros565.0★ (7)Chino, 40 mi awaySat · Sun · Evenings—
10Los Angeles Cabling555.0★ (4)Hollywood, 29 mi awaySat · Sun · Evenings—

The 287 best IT consultants in Crestline, 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 Crestline

    Based in Pasadena, 49 mi away

    58/100IFR Score

    Ranked #1 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
  2. Based in Ontario, 20 mi away

    58/100IFR Score

    Ranked #2 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
  3. Based in La Puente, 42 mi away

    58/100IFR Score

    Ranked #3 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
  4. Based in Rancho Cucamonga, 20 mi away

    57/100IFR Score

    Ranked #4 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
  5. Based in Victorville, 17 mi away

    57/100IFR Score

    Ranked #5 because of its Google rating and review volume: 4.9★ from 170 Google reviews.

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

    • 4.9★ from 170 Google reviews
    Hours
    Mon–Sat 9 AM–6 PM · Sun 3 PM–6 PM
    Address
    12933 High Vista St, Victorville, CA 92395
  6. Based in Riverside, 25 mi away

    57/100IFR Score

    Ranked #6 because of its Google rating and review volume: 4.9★ from 507 Google reviews, the most in Crestline.

    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
  7. Based in Ontario, 20 mi away

    56/100IFR Score

    Ranked #7 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
  8. Based in Chino, 40 mi away

    56/100IFR Score

    Ranked #9 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
  9. Based in Hollywood, 29 mi away

    55/100IFR Score

    Ranked #10 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
  10. Based in Apple Valley, 19 mi away

    55/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 9 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 9 AM–12:30 PM · Sun closed
    Address
    13580 Nomwaket Rd, Apple Valley, CA 92308
  11. Based in Riverside, 24 mi away

    55/100IFR Score

    Ranked #12 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
  12. Based in Home Gardens, 19 mi away

    55/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 8 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 8 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat 9 AM–2 PM · Sun closed
  13. Based in Rancho Cucamonga, 19 mi away

    55/100IFR Score

    Ranked #14 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
  14. Based in Colton, 13 mi away

    55/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.6★ from 5 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.6★ from 5 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–5 PM · Sun closed
    Address
    1076 S Santo Antonio Dr k2, Colton, CA 92324
  15. Based in Moreno Valley, 22 mi away

    55/100IFR Score

    Ranked #17 because of its Google rating and review volume: 4.7★ from 275 Google reviews.

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

    • 4.7★ from 275 Google reviews
    Hours
    Mon–Sat 10 AM–5 PM · Sun closed
    Address
    13117 Perris Blvd Ste 101, Moreno Valley, CA 92553
  16. Based in Ontario, 23 mi away

    55/100IFR 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
  17. Based in Rancho Cucamonga, 20 mi away

    55/100IFR Score

    Ranked #20 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
  18. Based in Riverside, 23 mi away

    54/100IFR Score

    Ranked #21 because of its Google rating and review volume: 4.6★ from 87 Google reviews.

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

    • 4.6★ from 87 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    Call for NEW ADDRESS, Call for NEW Address, OLD ADDRESS, 2900 Adams St, Riverside, CA 92504
  19. #22 Helpt

    Based in Irvine, 50 mi away

    54/100IFR Score

    Ranked #22 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
  20. Based in Riverside, 24 mi away

    54/100IFR Score

    Ranked #23 because of its Google rating and review volume: 4.9★ from 85 Google reviews.

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

    • 4.9★ from 85 Google reviews
    Hours
    Mon–Thu 6 AM–10 PM · Fri 6 AM–5:30 PM · Sat 6 PM–10 PM · Sun 8 AM–6 PM
    Address
    9067 Cleveland Ave, Riverside, CA 92503
  21. Based in Redlands, 13 mi away

    54/100IFR Score

    Ranked #24 because of its Google rating and review volume: 4.9★ from 175 Google reviews.

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

    • 4.9★ from 175 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    1902 Orange Tree Ln Suite 120, Redlands, CA 92374
  22. Based in Lake Elsinore, 38 mi away

    54/100IFR Score

    Ranked #25 because of its Google rating and review volume: 4.9★ from 87 Google reviews.

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

    • 4.9★ from 87 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    600 Central Ave Ste A, Lake Elsinore, CA 92530

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

IT consultants in Crestline, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Tech Expert Guys544.9★ (241)49 mi
27IT Solve Hub545.0★ (173)49 mi
28Secure Data Recovery Services544.9★ (87)26 mi
29PCHOUSE NOW544.9★ (163)27 mi
30Davik Consulting, Inc535.0★ (14)47 mi
31Netgain Networks Inc.534.5★ (8)18 mi
32COMPUTEK535.0★ (7)19 mi
33A2Z Computing Solutions Inc.534.9★ (89)15 mi
34komputer kreationz535.0★ (247)44 mi
35NCS - Network Consulting Service535.0★ (9)44 mi
36Palms Room532.0★ (3)13 mi
37Burgi Technologies | Managed IT & Cybersecurity535.0★ (75)47 mi
38Atomicrays534.0★ (16)41 mi
39Trinity Networx, LLC | Managed IT Services & Support Ontario, California535.0★ (26)21 mi
40MediaVision Computer Repair & IT Services535.0★ (370)48 mi
41KME Systems535.0★ (389)49 mi
42A PLUS COMPUTER534.9★ (172)21 mi
43Alandata Data Recovery535.0★ (77)49 mi
44Resource Computer Solutions534.9★ (7)24 mi
45Newport Computer Group534.7★ (6)49 mi
46Advanced Industrial Computer534.7★ (6)34 mi
47Jitney Co533.8★ (5)30 mi
48Rancho Computers524.8★ (86)21 mi
49Brea Networks, LLC524.4★ (16)42 mi
50Integrity Tech | Managed IT Services525.0★ (109)21 mi

Also serving Crestline

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 Crestline
BusinessGoogle ratingDistance
Advanced PCIn Crestline
Ailerons IT Consulting5.0★ (2)39 mi
Dr. Rob Otto PC MD5.0★ (2)22 mi
Edge Secure5.0★ (2)29 mi
FHD Tech Solutions5.0★ (2)35 mi
Fisticuphs4.5★ (2)16 mi
FlexTG Los Angeles5.0★ (2)20 mi
iCtrlITIn Crestline
Innovative Solutions4.0★ (2)35 mi
IT Vizion5.0★ (2)30 mi
Larry's Computer4.7★ (6)In Crestline
NCT Communications5.0★ (2)29 mi
Netechnopia5.0★ (2)32 mi
NetSolutions IT Consulting, Inc.3.0★ (2)40 mi
Netsteller IT Solutions5.0★ (2)22 mi
OA Technology4.5★ (2)38 mi
Pettit Consulting5.0★ (2)16 mi
SanneTech Consulting Services5.0★ (2)29 mi
Taso Tech Inc5.0★ (2)24 mi
Waterfront I.T. ServicesIn Crestline

How we ranked Crestline IT consultants

We scored 287 Crestline 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 Crestline 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 Crestline: frequently asked questions

Who is the best IT consultant in Crestline?

By IFR Score, the highest-ranked IT consultant in Crestline, CA is Sam's IT Solutions with an IFR Score of 58/100. It has 5.0★ from 497 Google reviews. It is open 7 days a week. INTELI DENTAL (#2) and GoHardDrive Inc (#3) follow. We ranked 287 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in Crestline?

ITFirmsRanked ranks 287 IT consultants serving Crestline, CA. Another 20 within 50 mi are listed but not ranked yet. Counts are as of November 2026.

Which IT consultants in Crestline work on weekends?

109 of 287 ranked IT consultants post Saturday hours and 57 post Sunday hours. The highest-ranked open Saturdays are Sam's IT Solutions (#1), INTELI DENTAL (#2) and NetTech Computers (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Crestline IT consultants have?

The median Google rating among 287 rated IT consultants in Crestline is 4.9★, with a median of 11 reviews. Wo Phone Design Computer Plus has the most, 507 reviews, and ranks #6. 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 Crestline count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 287 IT consultants serving Crestline.
  2. November 2026: 3 duplicate listings merged.