Company lists · Data refreshed September 2026

Top 24 Erp support and managed services based in San Diego, United States

RevenueBase identified 48 erp support and managed services headquartered in San Diego, United States as of September 2026 and tracks 859 professional contacts across them, including 271 with verified work emails. Across the United States, New York is the largest hub for this category (104 companies); San Diego has 48.

This list covers erp support and managed services 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 28, 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 28, 2026 86% judged on-target in blind review
48Companies
859Contacts tracked
271Verified emails
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The 24 largest erp support and managed services based in San Diego, United States

Ranked by team size
Top 24 of 48 erp support and managed services based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to erp support and managed services: 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
1Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202651-200307 contacts →

Indirect evidence

“Founded in 1984 in San Diego, DSD Business Systems is an award-winning technology partner with 45 offices across North America, serving small- to medium-sized organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261,001-5,000153 contacts →

Partial evidence

“Zempleo helps you manage your workforce - grounded in compliance and care -with services from EoR to MSP.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202651-200109 contacts →

Strong evidence

“Cre8tive Technology & Design provides dedicated ERP Solutions and Managed Services that fit the needs of Aerospace & Defense Manufacturers through a detailed understanding of…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-5028 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 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 28, 2026
6Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-5020 contacts →

Partial evidence

“QuadKor helps our clients gain insight into their business so owners and managers can sleep better at night.”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceSan Diego, CA, United StatesHQ checked Sep 28, 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 28, 2026
8Strong evidenceSan Diego, CA, United StatesHQ checked Sep 28, 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 28, 2026
9Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“We offer business office IT services including desktop repair, server installation, system upgrades and maintenance, network installation and configuration, and disaster recovery…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceSan Diego, CA, United StatesHQ checked Sep 28, 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 28, 2026
12Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-104 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 28, 2026
13Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-503 contacts →

Partial 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 28, 2026
14Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-503 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Specter Technology Solutions is an innovative and disruptive new solution to the old problems your business has faced in information technology (IT).”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“With over 20 years of IT experience, ITLogic has been providing both Managed and Professional IT services for small to medium-sized businesses in the San Diego area.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-103 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 28, 2026
18Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-502 contacts →

Partial evidence

“Looking for IT Management Service in San Diego for your small business?”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Calico IT is a different kind of IT company.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Direct Tech provides businesses with solutions that keep their IT infrastructure in tact.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceSan Diego, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“A private technology consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Fireworx is a fully-integrated and managed IT platform.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 24 of 48 erp support and managed services based in San Diego, United States

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Erp support and managed services based in San Diego, United States at a glance

As of Sep 28, 2026
31.5%Verified-email coverage
17.9Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
17
51-200
3
1,001-5,000
1

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 48 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 erp support and managed services, 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 “erp support and managed services”. 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 erp support and managed services), 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 erp support and managed services, 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, 271 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 28, 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.

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 erp support and managed services, 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 erp support and managed services are there based in San Diego, United States?

RevenueBase identified 48 erp support and managed services 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?

DSD Business Systems, headquartered in San Diego, tops this list with the largest team on record.

Which city in the United States has the most erp support and managed services?

New York leads the United States with 104 headquartered companies, followed by Houston (100) and Chicago (62). San Diego has 48.

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 271 verified decision-maker contacts tracked across these 48 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 28, 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.