Company lists · Data refreshed September 2026

Top 25 Managed IT services companies based in San Francisco, United States

Name: Managed IT services companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 73 companies tracked

RevenueBase identified 73 managed IT services companies headquartered in San Francisco, United States as of September 2026 and tracks 673 professional contacts across them, including 310 with verified work emails. New York is the largest hub.

This list covers managed IT services companies headquartered in San Francisco, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

73Companies

673Contacts tracked

310Verified emails

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The 25 largest managed IT services companies based in San Francisco, United States

Ranked by team size

Top 25 of 73 managed IT services companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed IT services companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Jones ITPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	82
	“At Jones IT, we believe IT should make your life easier- not more complicated.” Source: company website · checked Sep 5, 2026
2	Mann ConsultingPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	57
	“Mann Consulting is a San Francisco–based, family‑owned IT consultancy serving creative and small businesses users) across the U.S.” Source: company website · checked Sep 5, 2026
3	PCS TechnologyStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	36
	“At PCS Technology, we know how important it is for nonprofits to trust that their systems are secure and well-managed.” Source: company website · checked Sep 5, 2026
4	Xterra Solutions, INCPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	31
	“If your business’s IT service demands have left you feeling vulnerable or overloaded, you’re in the right place.” Source: company website · checked Sep 5, 2026
5	KinetixStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	29
	“The Kinetix managed service operates as if we were your internal IT department, with incentives fully aligned with yours.” Source: company website · checked Sep 5, 2026
6	Visions ManagementPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	27
	“Visions Management is a certified women owned business headquartered in the San Francisco Bay Area, proudly delivering innovative, service oriented solutions to clients around the…” Source: company website · checked Sep 5, 2026
7	LangtechIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	27
	“Business survival today is dependent upon instant delivery of targeted information to all facets of the organization.” Source: company website · checked Sep 5, 2026
8	SentantPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	24
	“Sentant is a next-generation cybersecurity & IT services firm with a team of experienced technology professionals.” Source: company website · checked Sep 5, 2026
9	CentarusStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	22
	“Centarus is dedicated to providing dependable Managed IT & Cybersecurity support to firms that want to increase efficiency & stay secure.” Source: company website · checked Sep 5, 2026
10	Uptime USAPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	19
	“Uptime is your IT partner making IT work for you and to be AlwaysOn.” Source: company website · checked Sep 5, 2026
11	24hourtek, INCStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	19
	“Our team of experts provides daily managed IT support solutions and IT Consulting that is personalized to our small to medium-sized business clients in the San Francisco Bay Area.” Source: company website · checked Sep 5, 2026
12	FMX SolutionsStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	17
	“No matter the size or complexity, FMX Solutions is excited to utilize our 14 years of experience in IT Service Management (ITSM) and Enterprise Service Management (ESM) to…” Source: company website · checked Sep 5, 2026
13	Boxit, LLCStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	17
	“boxIT has been providing reliable and cost-effective IT services to businesses through automation, 24/7 management, and a data-driven yet human approach since 2001.” Source: company website · checked Sep 5, 2026
14	IgnitionIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	16
	“The Ignition team delivers the friendliest dang tech support your business has ever seen.” Source: company website · checked Sep 5, 2026
15	BAY Computing GroupIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	16
	“Bay Computing Group is the best choice for reliable technology solutions and first-class support.” Source: company website · checked Sep 5, 2026
16	InfraonStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	16
	“Welcome to the future of Managed IT Services with Infraon Infinity!” Source: company website · checked Sep 5, 2026
17	Coffer GroupIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	14
	“Coffer Group is headquartered in San Francisco, providing tailored technology solutions since 2007.” Source: company website · checked Sep 5, 2026
18	Ventura Tech, INCStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	11
	“Founded in San Francisco in 2001, Ventura Tech delivers managed IT services, cybersecurity, and hands-on IT support for Bay Area businesses of all sizes.” Source: company website · checked Sep 5, 2026
19	Techinsf ConsultingPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	10
	“TechInSF: The Bay Area's Award-Winning IT and Digital Solutions Provider.” Source: company website · checked Sep 5, 2026
20	SKYENPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	1-10	9
	“Most businesses don't think about their IT until something breaks.” Source: company website · checked Sep 5, 2026
21	AtompodPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	8
	“Atompod provides comprehensive IT solutions, supporting your business from initial design to ongoing operations.” Source: company website · checked Sep 5, 2026
22	Alternis ITPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	7
	“For IT solutions San Francisco, ALTERNIS IT takes pride in delivering world-class IT services tailored specifically for small and mid-sized businesses.” Source: company website · checked Sep 5, 2026
23	TechbrainsIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	1-10	7
	“Techbrains is committed to offering cost-effective technology solutions to businesses in the San Francisco Bay Area.” Source: company website · checked Sep 5, 2026
24	Silverback Networks, INCIndirect evidence	San Francisco, United StatesHQ checked Sep 5, 2026	1-10	6
	Source: company website · checked Sep 5, 2026
25	Seashore IT INCStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	11-50	6
	“Our approach is designed to deliver the power of a fully staffed and experienced IT department at a fraction of the cost of managing it in-house.” Source: company website · checked Sep 5, 2026

Showing 25 of 73 managed IT services companies based in San Francisco, United States

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Managed IT services companies based in San Francisco, United States at a glance

As of Sep 5, 2026

11-50Median size (employees)

New YorkLargest hub · 352 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 73 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among managed IT services companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in San Francisco, United States whose own description of what they do matches “managed IT services companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among managed IT services companies, and records with no verified work email. Companies headquartered outside San Francisco are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 310 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Managed IT services companies by metro in the United States

Frequently asked

How many managed IT services companies are there based in San Francisco, United States?

RevenueBase identified 73 managed IT services companies headquartered in San Francisco, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Jones IT, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most managed IT services companies?

New York leads with 352 headquartered companies, followed by Houston (242) and Chicago (153).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 310 verified decision-maker contacts tracked across these 73 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.