Company lists · Data refreshed September 2026
Top 25 IT support outsourcing companies based in San Diego, United States
RevenueBase identified 77 IT support outsourcing companies headquartered in San Diego, United States as of September 2026 and tracks 390 professional contacts across them, including 149 with verified work emails. New York is the largest hub.
This list covers IT support outsourcing companies 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 21, 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.
The 25 largest IT support outsourcing companies based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 56 contacts → | ||||
Partial evidence “Your organization requires IT to help it drive innovation, profitability, and security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 40 contacts → | ||||
Strong evidence “Infracore is a best-in-class Cybersecurity and IT Support Services firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 23 contacts → | ||||
Partial evidence “At ISC, we provide comprehensive IT solutions tailored to the diverse needs of modern businesses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 18 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 15 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 11 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 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 9 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 8 contacts → | ||||
Partial evidence “Xonicwave specializes in delivering premier IT Managed Services and Solutions in Southern California.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8 contacts → | ||||
Indirect evidence “Agent Direct, Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Strong evidence “YEARS OF COMBINED COMPUTER SERVICE, IT TECH SUPPORT EXPERIENCE FOR SYSTEM & NETWORK ADMINISTRATION AND MANAGEMENT.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Strong evidence “SpeySide IT is an experienced IT solution provider, from complete desktop and application support to full scale data center design security and maintenance.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Partial evidence “We help small to medium size businesses in the United States succeed in IT.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “We’re Tech Kahunas – creating a shift from the old approach to technology.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “DO YOU STRUGGLE WITH TECHNOLOGY?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Strong evidence “Founded in 2013 on the IDEA to provide Basic Foundational IT Solutions and Support with an Excellent Customer Experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “Quiver Cloud Managed Services provides business essential IT services to small and medium sized businesses to boost productivity while minimizing costs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Partial evidence “Reliable, Hassle-Free Managed IT Services Transform Your Connectivity | Boost Your Performance | Improve for Optimal Results” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Strong evidence “IT Management Services and Support : For organizations that absolutely depend on their technology, MLAN Consulting delivers world-class IT management and professional services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Partial evidence “Looking for IT Management Service in San Diego for your small business?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “Founded July of in San Diego, California, the Palecek Consulting Group has grown into a leader in the Information Technology Support industry in Southern California.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Information Technology is a key strategic resource for competing in today’s business environment.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT support outsourcing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT support outsourcing companies.
- Partial evidence
- Its own public description names part of IT support outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT support outsourcing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 77 IT support outsourcing companies based in San Diego, United States
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IT support outsourcing companies based in San Diego, United States at a glance
As of Sep 21, 2026Companies by employee count
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 77 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 IT support outsourcing companies, 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 “IT support outsourcing companies”. 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 IT support outsourcing companies), 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 IT support outsourcing companies, 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, 149 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 21, 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.
IT support outsourcing companies by metro in the United States
- IT support outsourcing companies in New York249
- IT support outsourcing companies in Houston137
- IT support outsourcing companies in Miami101
- IT support outsourcing companies in Chicago90
- IT support outsourcing companies in Dallas87
- IT support outsourcing companies in Austin83
- IT support outsourcing companies in San Diego77
- IT support outsourcing companies in Los Angeles75
- IT support outsourcing companies in Atlanta73
- IT support outsourcing companies in Tampa69
- IT support outsourcing companies in Phoenix61
- IT support outsourcing companies in Las Vegas57
- IT support outsourcing companies in Charlotte52
- IT support outsourcing companies in Denver51
- IT support outsourcing companies in Orlando50
- IT support outsourcing companies in Irvine49
- IT support outsourcing companies in Seattle49
- IT support outsourcing companies in San Francisco46
- IT support outsourcing companies in San Antonio42
- IT support outsourcing companies in Portland40
- IT support outsourcing companies in Jacksonville37
- IT support outsourcing companies in Wilmington35
- IT support outsourcing companies in Sheridan34
- IT support outsourcing companies in Arlington33
- IT support outsourcing companies in San Jose31
- IT support outsourcing companies in Columbus30
- IT support outsourcing companies in Frisco29
- IT support outsourcing companies in Indianapolis29
- IT support outsourcing companies in Sacramento29
- IT support outsourcing companies in Fort Lauderdale28
- IT support outsourcing companies in Louisville28
- IT support outsourcing companies in Cincinnati27
- IT support outsourcing companies in Irving27
- IT support outsourcing companies in Pittsburgh27
- IT support outsourcing companies in Boston26
- IT support outsourcing companies in Greenville26
- IT support outsourcing companies in Nashville26
- IT support outsourcing companies in Richmond26
- IT support outsourcing companies in Troy25
- IT support outsourcing companies in Washington25
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 IT support outsourcing companies, 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 IT support outsourcing companies are there based in San Diego, United States?
RevenueBase identified 77 IT support outsourcing companies 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?
Bird Rock Systems, headquartered in San Diego, tops this list with the largest team on record.
Which city has the most IT support outsourcing companies?
New York leads with 249 headquartered companies, followed by Houston (137) and Miami (101).
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 149 verified decision-maker contacts tracked across these 77 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 21, 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.
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