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Best IT Consultants in Vacaville, CA (2026)

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

The short answer

  1. 1

    Best overall in Vacaville: 42, Inc., IFR Score 58/100; 5.0★ from 54 Google reviews; open 7 days a week.

  2. 2

    Most-reviewed: Tech 2U, 2,167 Google reviews at 4.9★, the most of 290 ranked; ranked #2.

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

290 Vacaville IT consultants are ranked here by IFR Score, from nine published factors. 90 open Saturdays and 66 open Sundays, based on posted hours. The median Google rating is 5.0★ across 290 rated IT firms.

Top 10 IT consultants in Vacaville at a glance

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

Top 10 IT consultants in Vacaville at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
142, Inc.585.0★ (54)Berkeley, 37 mi awaySat · Sun · EveningsOverall
2Tech 2U584.9★ (2,167)Sacramento, 35 mi awaySat · SunMost reviews
3Nerds On Call Computer Repair564.9★ (321)Arden-Arcade, 16 mi awaySat · Sun · Evenings—
4Sustainable Computing565.0★ (87)Alameda, 38 mi away——
5Option Click Consulting555.0★ (22)Larkspur, 46 mi awaySat · Sun · Evenings—
6Accurate Digital Solutions554.7★ (13)Sacramento, 31 mi awaySat · Sun—
7Terrapin Technology Group Inc555.0★ (19)Sacramento, 33 mi away——
8Computer Engineering Group554.1★ (63)Napa, 17 mi away——
9Grundig IT555.0★ (3)Alamo, 25 mi awaySat · Sun · Evenings—
10Sacramento Network Solutions, Inc.555.0★ (33)Sacramento, 32 mi away——

The 290 best IT consultants in Vacaville, 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 Vacaville

    Based in Berkeley, 37 mi away

    58/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 54 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 54 Google reviews
    Hours
    Mon–Sun 7 AM–7 PM
    Address
    2150 Allston Way #300, Berkeley, CA 94704
  2. Based in Sacramento, 35 mi away

    58/100IFR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 2,167 Google reviews, the most in Vacaville.

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

    • 4.9★ from 2,167 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun 9 AM–2 PM
    Address
    1590 Howe Ave, Sacramento, CA 95825
  3. Based in Alameda, 38 mi away

    56/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 87 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 87 Google reviews
    Hours
    Mon–Tue 10 AM–5 PM · Wed 10:30 AM–5 PM · Thu–Fri 10 AM–5 PM · Sat–Sun closed
  4. Based in Larkspur, 46 mi away

    55/100IFR Score

    Ranked #5 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–Fri 9 AM–8 PM · Sat–Sun 10 AM–4 PM
  5. Based in Napa, 17 mi away

    55/100IFR Score

    Ranked #8 because of its Google rating and service focus: 4.1★ from 63 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.1★ from 63 Google reviews
    Hours
    Mon–Fri 8:30 AM–5:30 PM · Sat–Sun closed
    Address
    855 Bordeaux Way Ste 120, Napa, CA 94558
  6. Based in Alamo, 25 mi away

    55/100IFR Score

    Ranked #9 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  7. Based in San Francisco, 45 mi away

    54/100IFR Score

    Ranked #12 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
    95 3rd St 2nd Floor, San Francisco, CA 94103
  8. Based in Benicia, 23 mi away

    54/100IFR Score

    Ranked #13 because of its Google rating and service focus: 4.4★ from 25 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.4★ from 25 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat–Sun closed
    Address
    77 Solano Square Ste 351, Benicia, CA 94510
  9. Based in Auburn Hills, 35 mi away

    54/100IFR Score

    Ranked #14 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  10. Based in Vallejo, 10 mi away

    54/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Fri 9 AM–7 PM · Sat 11 AM–3 PM · Sun closed
  11. Based in Stockton, 43 mi away

    53/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.3★ from 12 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.3★ from 12 Google reviews
    Hours
    Mon–Sat 8:30 AM–6 PM · Sun 10 AM–5 PM
    Address
    8626 N Lower Sacramento Rd, Stockton, CA 95210
  12. Based in Sacramento, 32 mi away

    53/100IFR Score

    Ranked #17 because of its Google rating and review volume: 4.8★ from 286 Google reviews.

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

    • 4.8★ from 286 Google reviews
    Hours
    Mon–Fri 10 AM–6 PM · Sat–Sun 11 AM–5 PM
    Address
    5244 Fruitridge Rd, Sacramento, CA 95820
  13. Based in San Rafael, 40 mi away

    53/100IFR Score

    Ranked #18 because of its Google rating and service focus: 5.0★ from 29 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 29 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    207 Devon Dr, San Rafael, CA 94903
  14. Based in San Francisco, 44 mi away

    53/100IFR Score

    Ranked #20 because of its Google rating and service focus: 5.0★ from 32 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 32 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    1160 Battery St suite 100, San Francisco, CA 94111
  15. Based in Sacramento, 16 mi away

    53/100IFR Score

    Ranked #21 because of its Google rating and service focus: 4.9★ from 9 Google reviews, listed on Google as “Computer consultant”.

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

    • 4.9★ from 9 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
  16. Based in Concord, 27 mi away

    53/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 5 Google reviews
    Address
    1641 Challenge Dr Ste A, Concord, CA 94520
  17. #25 Zbynet

    Based in San Rafael, 40 mi away

    53/100IFR Score

    Ranked #25 because of its Google rating and service focus: 5.0★ from 11 Google reviews, listed on Google as “Computer consultant”.

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

    • 5.0★ from 11 Google reviews
    Hours
    Mon–Sat 9 AM–6 PM · Sun closed
    Address
    819 A St Ste 23, San Rafael, CA 94901

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

IT consultants in Vacaville, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26DeParts Systems535.0★ (126)44 mi
27People 1st IT Inc. LLC534.9★ (299)45 mi
28Murphy, McKay & Associates, Inc.534.9★ (15)31 mi
29David Mercer Consulting, Inc534.9★ (16)32 mi
30Intelligent Technical Solutions | ITS535.0★ (104)41 mi
31Digital Dental Solutions524.7★ (38)48 mi
32Bay Computing Group525.0★ (48)27 mi
33GroupOne IT - Sacramento Managed IT Services Company525.0★ (59)31 mi
34Portola Systems Inc524.6★ (9)40 mi
35WebDispatch524.9★ (19)40 mi
36Green It525.0★ (3)26 mi
37Computer Doctor524.5★ (114)19 mi
38CLEAR Technology525.0★ (123)38 mi
39Netpace Inc524.4★ (8)41 mi
40Unity Networking525.0★ (8)45 mi
41VITU524.0★ (25)38 mi
423D TSI514.1★ (9)43 mi
43California Computer Services514.1★ (11)46 mi
44KairosIT515.0★ (12)41 mi
45Cyberdoc PTS Inc515.0★ (8)33 mi
46Sydewayz Cafe514.6★ (17)44 mi
47Wires Are Ugly515.0★ (3)35 mi
48Black Owls Network Communications, Inc.515.0★ (10)41 mi
49TeamLogic IT North Bay of San Francisco515.0★ (44)39 mi
50Jones IT515.0★ (431)47 mi

Also serving Vacaville

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 Vacaville
BusinessGoogle ratingDistance
All Covered IT Services2.5★ (2)31 mi
Connected Systems5.0★ (2)18 mi
East Bay Tech Service5.0★ (2)37 mi
East Sac Computer Repair5.0★ (2)32 mi
EFK SystemsIn Vacaville
Flagg Applied Computer Technologies5.0★ (2)26 mi
JW Technology5.0★ (2)32 mi
LBT Technology Group, LLC.5.0★ (2)29 mi
Muffin Consulting By Oakgrounds4.0★ (2)37 mi
Network Security Assessment GroupIn Vacaville
Oak & Ash Technology5.0★ (2)32 mi
PBTech Services5.0★ (2)28 mi
PC Service Center - Business IT Support, Managed IT Services & Cybersecurity4.5★ (2)21 mi
PlainwrightAIIn Vacaville
Rob's Computer Shop5.0★ (58)In Vacaville
Santomieri SystemsIn Vacaville
Setup and Tutoring: Specializing in all things Apple5.0★ (2)36 mi
Solutions NCR3.0★ (2)34 mi
TeamLogic IT5.0★ (2)35 mi
Tech 2U5.0★ (2)33 mi

How we ranked Vacaville IT consultants

We scored 290 Vacaville 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 Vacaville 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 Vacaville: frequently asked questions

Who is the best IT consultant in Vacaville?

By IFR Score, the highest-ranked IT consultant in Vacaville, CA is 42, Inc. with an IFR Score of 58/100. It has 5.0★ from 54 Google reviews. It is open 7 days a week. Tech 2U (#2) and Nerds On Call Computer Repair (#3) follow. We ranked 290 IT consultants on nine factors, last updated November 9, 2026.

How many IT consultants are there in Vacaville?

ITFirmsRanked ranks 290 IT consultants serving Vacaville, CA. 1 of them is based in Vacaville; 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 Vacaville work on weekends?

90 of 290 ranked IT consultants post Saturday hours and 66 post Sunday hours. The highest-ranked open Saturdays are 42, Inc. (#1), Tech 2U (#2) and Nerds On Call Computer Repair (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Vacaville IT consultants have?

The median Google rating among 290 rated IT consultants in Vacaville is 5.0★, with a median of 13 reviews. Tech 2U has the most, 2,167 reviews, and ranks #2. 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 Vacaville count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 290 IT consultants serving Vacaville.
  2. November 2026: 1 duplicate listing merged.