66/100IFR Score
Ranked #1 because of its Google rating and service focus: 5.0★ from 44 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Best Managed IT Service Providers in Windsor, CA (2026)
67 managed IT service providers ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Windsor: TeamLogic IT North Bay of San Francisco, IFR Score 66/100; 5.0★ from 44 Google reviews; open 7 days a week.
- 8
Most-reviewed: Nerds - Sebastopol (HQ), 234 Google reviews at 4.9★, the most of 67 ranked; ranked #8.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
67 Windsor managed IT service providers are ranked here by IFR Score, from nine published factors. 23 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 5.0★ across 67 rated IT firms.
Top 10 managed IT service providers in Windsor 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 | TeamLogic IT North Bay of San Francisco | 66 | 5.0★ (44) | Santa Rosa, 10 mi away | Sat · Sun · Evenings | Overall |
| 2 | CLEAR Technology | 64 | 5.0★ (123) | Alameda, 38 mi away | Sat · Sun | — |
| 3 | TeamLogic IT North Bay of San Francisco | 59 | 5.0★ (10) | Petaluma, 24 mi away | Sat · Sun · Evenings | — |
| 4 | Digicom Technology Solutions | 59 | 5.0★ (27) | Santa Rosa, 41 mi away | Sat · Sun · Evenings | — |
| 5 | Wooden Spoon Managed IT Services | Outsourced IT Support & IT Consulting Santa Rosa | 59 | 5.0★ (23) | Santa Rosa, 9 mi away | — | — |
| 6 | DeepNet | 59 | 5.0★ (18) | Santa Rosa, 9 mi away | — | — |
| 7 | Endsight | Managed IT Services & IT Support in Napa | 58 | 4.6★ (51) | Napa, 33 mi away | — | — |
| 8 | Nerds - Sebastopol (HQ) | 57 | 4.9★ (234) | Santa Rosa, 11 mi away | — | Most reviews |
| 9 | I'm The Geek | 57 | 5.0★ (31) | Fairfield, 47 mi away | Sat | — |
| 10 | Wham Stack | 57 | 5.0★ (5) | Santa Rosa, 11 mi away | — | — |
The 67 best managed IT service providers in Windsor, 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 Alameda, 38 mi away
64/100IFR ScoreRanked #2 because of its Google rating and service focus: 5.0★ from 123 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Petaluma, 24 mi away
59/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 41 mi away
59/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 27 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 9 mi away
59/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 23 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
#6 DeepNet
Based in Santa Rosa, 9 mi away
59/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Napa, 33 mi away
58/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.6★ from 51 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 11 mi away
57/100IFR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 234 Google reviews, the most in Windsor.
Based on 8 of 9 factors; recency not yet collected.
#9 I'm The Geek
Based in Fairfield, 47 mi away
57/100IFR ScoreRanked #9 because of its Google rating and service focus: 5.0★ from 31 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
#10 Wham Stack
Based in Santa Rosa, 11 mi away
57/100IFR ScoreRanked #10 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer support and services”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Santa Rosa, 3 mi away
56/100IFR ScoreRanked #11 because of its Google rating and review volume: 4.8★ from 47 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 9 mi away
56/100IFR ScoreRanked #12 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer support and services”.
Based on 7 of 9 factors; recency and availability not yet collected.
#13 Verus
Based in San Rafael, 42 mi away
56/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.8★ from 32 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
#14 Two Smart Plugs
Based in Rohnert Park, 18 mi away
56/100IFR ScoreRanked #14 because of its Google rating and service focus: 5.0★ from 8 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Windsor
56/100IFR ScoreRanked #15 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Novato, 34 mi away
56/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Healdsburg, 6 mi away
56/100IFR ScoreRanked #17 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 18 mi away
55/100IFR ScoreRanked #18 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 7 mi away
55/100IFR ScoreRanked #19 because of its Google rating and review volume: 4.5★ from 156 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 10 mi away
55/100IFR ScoreRanked #20 because of its Google rating and review volume: 4.8★ from 119 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Napa, 44 mi away
55/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Sonoma, 20 mi away
54/100IFR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 39 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#23 Microtechs
Based in Mill Valley, 49 mi away
54/100IFR ScoreRanked #23 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 8 mi away
54/100IFR ScoreRanked #24 because of its Google rating and review volume: 5.0★ from 35 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Santa Rosa, 5 mi away
54/100IFR ScoreRanked #25 because of its Google rating and review volume: 5.0★ from 50 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Managed IT service providers 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 67 ranked managed IT service providers here; the rest are on their profiles.
| Rank | Business | IFR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | I Hate My PC | 53 | 4.8★ (5) | 43 mi |
| 27 | ACS Technologies, LLC | 53 | 5.0★ (3) | 11 mi |
| 28 | Senior Tech Tutor Marin | 53 | 5.0★ (15) | 45 mi |
| 29 | Mane Systems - IT Services & Support | 53 | 5.0★ (5) | 23 mi |
| 30 | Eyonic Systems Inc | 53 | 5.0★ (9) | 43 mi |
| 31 | Netwire Consulting | 52 | 5.0★ (3) | 22 mi |
| 32 | Medicus IT | 52 | 3.7★ (3) | 21 mi |
| 33 | Selerum Inc. | 52 | 5.0★ (5) | 50 mi |
| 34 | Computer Support Marin | 51 | 5.0★ (3) | 39 mi |
| 35 | FormaTech IT Services | 51 | 4.8★ (5) | 37 mi |
| 36 | nDataStor - Fairfield Managed IT Services Company | 51 | 4.8★ (31) | 45 mi |
| 37 | Rapid Tech Repair | 51 | 5.0★ (9) | 11 mi |
| 38 | Advanced Data Systems | 51 | 3.5★ (4) | 33 mi |
| 39 | Amusemint | 51 | 3.0★ (4) | 50 mi |
| 40 | Midpoint Cyber Solutions | 50 | 5.0★ (5) | 47 mi |
| 41 | Mendocino Computer Support | 50 | 5.0★ (5) | 46 mi |
| 42 | JW Consulting Services | 50 | 5.0★ (7) | 11 mi |
| 43 | Marin Computers | 50 | 4.7★ (57) | 44 mi |
| 44 | Sonoma Tech Solutions | 50 | 5.0★ (19) | 25 mi |
| 45 | T.L Computer Repair Shop | 50 | 4.9★ (34) | 40 mi |
| 46 | ZeroIn | 49 | 5.0★ (3) | 45 mi |
| 47 | Sonoma IT Solutions | 49 | 5.0★ (6) | 17 mi |
| 48 | Novato Computer Service | 49 | 4.5★ (56) | 33 mi |
| 49 | IT Imagined LLC | 49 | 5.0★ (12) | 7 mi |
| 50 | Micro-Easy Computer, Inc | 49 | 4.7★ (3) | 48 mi |
Also serving Windsor
20 more managed IT service 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 |
|---|---|---|
| 415 IT | 5.0★ (2) | 43 mi |
| CoEntropy | 5.0★ (1) | 11 mi |
| Computers Can Work | 5.0★ (1) | 9 mi |
| Connected Systems | 5.0★ (2) | 47 mi |
| Craft Technology Solutions | 5.0★ (2) | 14 mi |
| INTERACTIVE21 COMPUTER CUSTOMIZING & SERVICING | In Windsor | |
| IT Hub | 5.0★ (1) | 12 mi |
| JW Technology | 5.0★ (2) | 47 mi |
| Metamorphosis IT Solutions | 5.0★ (1) | 14 mi |
| Nate Legakis LLC | In Windsor | |
| Nieto IT Solutions | In Windsor | |
| nojup | 5.0★ (1) | 22 mi |
| North Bay IT Solutions Inc | 5.0★ (1) | 22 mi |
| PawGuard IT | In Windsor | |
| PC Service Center - Business IT Support, Managed IT Services & Cybersecurity | 4.5★ (2) | 44 mi |
| Rogue Hive LLC. | 5.0★ (2) | 41 mi |
| Santa Rosa IT Connect | 5.0★ (1) | 9 mi |
| Santa Rosa IT Connect | 5.0★ (1) | 11 mi |
| Scoja Technology Services -Residential and Business IT | 5.0★ (2) | 43 mi |
| SoCo Wi-Fi | 5.0★ (2) | 22 mi |
How we ranked Windsor managed IT service providers
We scored 67 Windsor managed IT service 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 Windsor 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 managed IT service provider
- Ask for a sample service-level agreement and compare response times, support hours and exclusions.
- Check how backups are done and tested, and ask when they last restored a client’s data.
- Ask which security tools are included and which cost extra (MFA, endpoint protection, email filtering, staff training).
- Make sure you, not the firm, own your accounts, domain names and licences.
- 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 managed IT service provider
- Is the price per user, per device or a bundle, and what is not included?
- What are your response times for urgent, normal and low-priority tickets?
- Is your help desk in-house or outsourced, and what are its hours?
- How do you back up our data, how often do you test restores, and where are the copies kept?
- Which security tools are included, and do you monitor alerts after hours?
- What happens to our passwords, documentation and data if we leave?
- Can you give us references from clients of our size and industry?
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.
Managed IT service providers in Windsor: frequently asked questions
Who is the best managed IT service provider in Windsor?
By IFR Score, the highest-ranked managed IT service provider in Windsor, CA is TeamLogic IT North Bay of San Francisco with an IFR Score of 66/100. It has 5.0★ from 44 Google reviews. It is open 7 days a week. CLEAR Technology (#2) and TeamLogic IT North Bay of San Francisco (#3) follow. We ranked 67 managed IT service providers on nine factors, last updated November 9, 2026.
How many managed IT service providers are there in Windsor?
ITFirmsRanked ranks 67 managed IT service providers serving Windsor, CA. 1 of them is based in Windsor; 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 managed IT service providers in Windsor work on weekends?
23 of 67 ranked managed IT service providers post Saturday hours and 11 post Sunday hours. The highest-ranked open Saturdays are TeamLogic IT North Bay of San Francisco (#1), CLEAR Technology (#2) and TeamLogic IT North Bay of San Francisco (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Windsor managed IT service providers have?
The median Google rating among 67 rated managed IT service providers in Windsor is 5.0★, with a median of 9 reviews. Nerds - Sebastopol (HQ) has the most, 234 reviews, and ranks #8. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ITFirmsRanked rank managed IT service providers?
Each managed IT service 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 managed IT service providers outside Windsor count in this ranking?
Yes, if they are within 50 mi of the Windsor city center, our service radius for managed IT service 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 managed IT service 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 managed IT service provider do?
Managed IT service providers (MSPs) run a business’s computers, servers, network, Microsoft 365 or Google accounts, backups and help desk for a monthly fee, or provide IT support by the hour.
How are managed it service providers in Windsor ranked?
By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does managed IT services and IT support, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.
What should a managed IT agreement include?
At minimum: help desk support for your staff, monitoring and patching of computers and servers, backups that are tested, security tools such as endpoint protection and multi-factor authentication, and a named contact. The agreement should state response times, support hours and what counts as out of scope.
Is managed IT priced per user or per device?
Both models are common, and some firms sell tiered bundles. Per-user pricing suits staff with several devices; per-device pricing suits shared computers. Compare quotes on the same number of users, devices and servers.
How long are managed IT contracts?
Often one to three years, sometimes month to month. Check the notice period, any early-termination fee and how the firm hands over passwords, documentation and data when the contract ends.
Update log for Windsor
- November 2026: IFR Scores recalculated for 67 managed IT service providers serving Windsor.
- November 2026: 1 duplicate listing merged.
More managed IT service providers and Windsor pages
Managed IT service providers near Windsor
- Managed IT service providers in Healdsburg, CA57 ranked
- Managed IT service providers in Santa Rosa, CA157 ranked
- Managed IT service providers in Rohnert Park, CA187 ranked
- Managed IT service providers in Petaluma, CA218 ranked
- Managed IT service providers in Sonoma, CA232 ranked
- Managed IT service providers in Clearlake, CA39 ranked
- Managed IT service providers in Novato, CA263 ranked
- Managed IT service providers in Napa, CA280 ranked
- Managed IT service providers in American Canyon, CA301 ranked
- Managed IT service providers in San Anselmo, CA288 ranked
Other services in Windsor
- Cybersecurity companies in Windsor144 ranked
- IT consultants in Windsor58 ranked
- Network cabling and installation companies in Windsor18 ranked
- Business phone system providers in Windsor32 ranked
- Data recovery services in Windsor32 ranked
- Computer repair shops in Windsor35 ranked
- All IT providers in Windsor