Company lists · Data refreshed September 2026

Top 25 Managed service providers based in San Diego, United States

Name: Managed service providers based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 90 companies tracked

RevenueBase identified 90 managed service providers headquartered in San Diego, United States as of September 2026 and tracks 643 professional contacts across them, including 296 with verified work emails. New York is the largest hub.

This list covers managed service providers headquartered in San Diego, 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

90Companies

643Contacts tracked

296Verified emails

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The 25 largest managed service providers based in San Diego, United States

Ranked by team size

Top 25 of 90 managed service providers based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed service providers: 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	Managed SolutionStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	51-200	97
	“Managed Solution was founded in 2002 and quickly earned recognition as one of San Diego’s 40 fastest-growing companies and the 27th fastest-growing IT company in Southern…” Source: company website · checked Sep 5, 2026
2	Bird Rock SystemsIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	56
	“Your organization requires IT to help it drive innovation, profitability, and security.” Source: company website · checked Sep 5, 2026
3	InfracoreIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	51-200	40
	“Infracore is a best-in-class Cybersecurity and IT Support Services firm.” Source: company website · checked Sep 5, 2026
4	Skyriver ITIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	32
	“Leveraging technology to provide users with a reliable and efficient IT infrastructure that aligns with business goals.” Source: company website · checked Sep 5, 2026
5	ITCMIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	28
	“Founded in 1985, ITCM provides businesses with solutions that keep your IT infrastructure intact.” Source: company website · checked Sep 5, 2026
6	ISC Group, LLCIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	23
	“At ISC, we provide comprehensive IT solutions tailored to the diverse needs of modern businesses.” Source: company website · checked Sep 5, 2026
7	CompuoneIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	22
	“We are now serving IT needs in the greater Chicago area!” Source: company website · checked Sep 5, 2026
8	Kazmarek Technology Solutions, INCIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	18
	“Kazmarek Technology Solutions is a San Diego IT Firm with over 20 years of successful partnership with local clients.” Source: company website · checked Sep 5, 2026
9	WY TechnologyIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	51-200	15
	“WY Technology – Complete IT Solutions for Progressive Businesses Founded in WY Technology was created to help businesses leverage technology and find innovative solutions to the…” Source: company website · checked Sep 5, 2026
10	ExcedeoIndirect evidence	San Diego, United StatesHQ checked Sep 5, 2026	11-50	14
	“Mariela Collins launched Excedeo 18 years ago because she recognized that small and mid-size companies need the full service of an in-house IT Department without the high staffing…” Source: company website · checked Sep 5, 2026
11	Ciprus ConsultingStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	11
	“IT Strategy Consulting \| Information Technology Consultants \| IT Infrastructure Management Ciprus Consulting provides world-class outsourced IT support and management to…” Source: company website · checked Sep 5, 2026
12	619 ITStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	10
	“619 IT is an IT Managed Services Company providing skilled technical support to San Diego businesses since 2001.” Source: company website · checked Sep 5, 2026
13	CyberdocIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	9
	“Founded in 1995 in San Diego, CyberDoc delivers exceptional on-site and remote IT support tailored to the needs of small businesses.” Source: company website · checked Sep 5, 2026
14	XonicwaveStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	8
	“Xonicwave specializes in delivering premier IT Managed Services and Solutions in Southern California.” Source: company website · checked Sep 5, 2026
15	ALL PRO SupportIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	8
	“Agent Direct, Inc.” Source: company website · checked Sep 5, 2026
16	Skyline IT Services, INCStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	7
	“Skyline IT Services helps businesses stay productive, secure, and prepared through responsive support, proactive management, and practical technology guidance.” Source: company website · checked Sep 5, 2026
17	Network TitanStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	7
	“Network Titan provides Managed and Co-Managed IT Support and Cybersecurity Services delivering expert, rapid response complete IT Support, Networking, Server, Cloud Solutions…” Source: company website · checked Sep 5, 2026
18	Techit Services LLCStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	5
	“YEARS OF COMBINED COMPUTER SERVICE, IT TECH SUPPORT EXPERIENCE FOR SYSTEM & NETWORK ADMINISTRATION AND MANAGEMENT.” Source: company website · checked Sep 5, 2026
19	SpeysideitIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	4
	“SpeySide IT is an experienced IT solution provider, from complete desktop and application support to full scale data center design security and maintenance.” Source: company website · checked Sep 5, 2026
20	First Team ITStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	4
	“First Team IT is a full capability information technology Managed Service Provider (MSP) that prides itself on not only the knowledge and skill we bring to each engagement, but…” Source: company website · checked Sep 5, 2026
21	724itIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	3
	“Reliable IT Support and Service 7 days / week 24 hours / day Unforeseen business disasters can strike anytime - are you prepared?” Source: company website · checked Sep 5, 2026
22	SAN Diego IT ProsStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“IT Consulting firm based in San Diego, offering consulting on security, network management, infrastructure, cloud services, and more.” Source: company website · checked Sep 5, 2026
23	Eironclad Technology SolutionsIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	3
	“eIRONclad Technology Solutions services forward thinking companies with their technology needs.” Source: company website · checked Sep 5, 2026
24	Beanstalk ComputingIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“DO YOU STRUGGLE WITH TECHNOLOGY?” Source: company website · checked Sep 5, 2026
25	Tech KahunasIndirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“We’re Tech Kahunas – creating a shift from the old approach to technology.” Source: company website · checked Sep 5, 2026

Showing 25 of 90 managed service providers based in San Diego, United States

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Managed service providers based in San Diego, United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 287 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

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 Diego, over 90 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 service providers, 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 Diego, United States whose own description of what they do matches “managed service providers”. 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 service providers, and records with no verified work email. Companies headquartered outside San Diego 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, 296 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 service providers by metro in the United States

Frequently asked

How many managed service providers are there based in San Diego, United States?

RevenueBase identified 90 managed service providers headquartered in San Diego, 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?

Managed Solution, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most managed service providers?

New York leads with 287 headquartered companies, followed by Houston (202) and Chicago (132).

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 296 verified decision-maker contacts tracked across these 90 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.