Company lists · Data refreshed September 2026

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

RevenueBase identified 86 managed services providers headquartered in San Diego, United States as of September 2026 and tracks 610 professional contacts across them, including 278 with verified work emails. New York is the largest hub.

This list covers managed services 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
86Companies
610Contacts tracked
278Verified emails
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The 25 largest managed services providers based in San Diego, United States

Ranked by team size
Top 25 of 86 managed services providers based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to managed services providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202651-20097 contacts →

Strong evidence

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: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5056 contacts →

Indirect evidence

“Your organization requires IT to help it drive innovation, profitability, and security.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202651-20040 contacts →

Indirect evidence

“Infracore is a best-in-class Cybersecurity and IT Support Services firm.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5028 contacts →

Indirect evidence

“Founded in 1985, ITCM provides businesses with solutions that keep your IT infrastructure intact.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“At ISC, we provide comprehensive IT solutions tailored to the diverse needs of modern businesses.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“Kazmarek Technology Solutions is a San Diego IT Firm with over 20 years of successful partnership with local clients.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“LANSolutions joined forces with Endsight in December 2021.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202651-20015 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSan Diego, United StatesHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 20, 2026
10Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-1011 contacts →

Strong evidence

“IT Strategy Consulting | Information Technology Consultants | IT Infrastructure Management Ciprus Consulting provides world-class outsourced IT support and management to…”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Strong evidence

“619 IT is an IT Managed Services Company providing skilled technical support to San Diego businesses since 2001.”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Strong evidence

“SpotLink, a leading technology solutions firm based in San Diego, provides reliable, personalized network solutions, application development and managed IT services to small and…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“Founded in 1995 in San Diego, CyberDoc delivers exceptional on-site and remote IT support tailored to the needs of small businesses.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-508 contacts →

Strong evidence

“Xonicwave specializes in delivering premier IT Managed Services and Solutions in Southern California.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“Agent Direct, Inc.”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-507 contacts →

Strong evidence

“Skyline IT Services helps businesses stay productive, secure, and prepared through responsive support, proactive management, and practical technology guidance.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-507 contacts →

Strong evidence

“Network Titan provides Managed and Co-Managed IT Support and Cybersecurity Services delivering expert, rapid response complete IT Support, Networking, Server, Cloud Solutions…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“UCright is a full service MSP, VAR and Systems Integrator.”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-105 contacts →

Strong evidence

“YEARS OF COMBINED COMPUTER SERVICE, IT TECH SUPPORT EXPERIENCE FOR SYSTEM & NETWORK ADMINISTRATION AND MANAGEMENT.”

Source: RevenueBase Database · checked Sep 20, 2026
20Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-104 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“Reliable IT Support and Service 7 days / week 24 hours / day Unforeseen business disasters can strike anytime - are you prepared?”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-103 contacts →

Strong evidence

“IT Consulting firm based in San Diego, offering consulting on security, network management, infrastructure, cloud services, and more.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“eIRONclad Technology Solutions services forward thinking companies with their technology needs.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“We’re Tech Kahunas – creating a shift from the old approach to technology.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“DO YOU STRUGGLE WITH TECHNOLOGY?”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 86 managed services providers based in San Diego, United States

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

As of Sep 20, 2026
45.6%Verified-email coverage
7.1Average contacts per company
1-10Median size (employees)
314.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
52
11-50
31
51-200
3

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 86 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 services providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 services providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names managed services providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among managed services 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 its RevenueBase Smart Search 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, 278 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 20, 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 services providers by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names managed services providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 86 managed services 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 services providers?

New York leads with 270 headquartered companies, followed by Houston (195) and Chicago (116).

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 278 verified decision-maker contacts tracked across these 86 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 20, 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 Smart Search, 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.