Company lists · Data refreshed September 2026

Top 25 Business IT services based in San Diego, United States

Name: Business IT services 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 23, 2026 148 companies tracked

RevenueBase identified 148 business IT services headquartered in San Diego, United States as of September 2026 and tracks 1,284 professional contacts across them, including 495 with verified work emails. New York is the largest hub.

This list covers business IT 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 23, 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 23, 2026 86% judged on-target in blind review

148Companies

1,284Contacts tracked

495Verified emails

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The 25 largest business IT services based in San Diego, United States

Ranked by team size

Top 25 of 148 business IT services based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business IT 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	FIT Solutions, LLC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	119 contacts →
	Indirect evidence “At FIT Solutions, our service starts with who we are, rather than just what we know.” Source: RevenueBase Database · checked Sep 23, 2026
2	Managed Solution	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	97 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 23, 2026
3	NTH Generation Computing	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	89 contacts →
	Strong evidence “Since 1991, Nth Generation has provided industry leading, consultative IT services, encompassing a suite of IT and security solutions.” Source: RevenueBase Database · checked Sep 23, 2026
4	The Marlin Alliance, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	70 contacts →
	Indirect evidence “The Marlin Alliance, Inc.(Marlin) delivers digital transformation and innovative technical solutions across military, government, and commercial sectors.” Source: RevenueBase Database · checked Sep 23, 2026
5	Bird Rock Systems	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	56 contacts →
	Strong evidence “Your organization requires IT to help it drive innovation, profitability, and security.” Source: RevenueBase Database · checked Sep 23, 2026
6	Definity First	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	35 contacts →
	Indirect evidence “Definity First is a global digital consulting firm that helps companies solve business challenges, with technology, customer experience, analytics, and marketing optimization.” Source: RevenueBase Database · checked Sep 23, 2026
7	Skyriver IT	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	32 contacts →
	Strong evidence “Leveraging technology to provide users with a reliable and efficient IT infrastructure that aligns with business goals.” Source: RevenueBase Database · checked Sep 23, 2026
8	Altumind Tech	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	22 contacts →
	Indirect evidence “Altumind enables its clients to achieve digital transformation with tangible outcomes.” Source: RevenueBase Database · checked Sep 23, 2026
9	Webcentriq	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	21 contacts →
	Indirect evidence “We specialize in digital innovation and transformation.” Source: RevenueBase Database · checked Sep 23, 2026
10	Kazmarek Technology Solutions, INC	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	18 contacts →
	Strong 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 23, 2026
11	Crown Computers	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	15 contacts →
	Indirect evidence “Our mission is to deliver the best quality and value of computer solutions.” Source: RevenueBase Database · checked Sep 23, 2026
12	Digital Crafters	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	15 contacts →
	Strong evidence “Digital Crafters is a web design and development company and we believe in providing high-quality value-added IT solutions to our clients.” Source: RevenueBase Database · checked Sep 23, 2026
13	WY Technology	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	51-200	15 contacts →
	Strong 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 23, 2026
14	Excedeo	Strong evidence	San Diego, United StatesHQ checked Sep 23, 2026	11-50	14 contacts →
	Strong 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 23, 2026
15	Alliance Innovations	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “We partner with organizations to guide, implement, and optimize digital and web technology solutions, including leading CMS and DXP platforms.” Source: RevenueBase Database · checked Sep 23, 2026
16	Sara Technologies INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “Sara Technologies, Inc.” Source: RevenueBase Database · checked Sep 23, 2026
17	5p Consulting	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	12 contacts →
	Indirect evidence “5P Consulting is a boutique Information Management & System Implementation firm.” Source: RevenueBase Database · checked Sep 23, 2026
18	Intelesis Technologies Corp	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	11 contacts →
	Indirect evidence “Intelesis is an information technology and management consulting firm dedicated to providing customer-intimate service that enables us to satisfy the unique needs of our clients.” Source: RevenueBase Database · checked Sep 23, 2026
19	Codelinear	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	11 contacts →
	Indirect evidence “Codelinear is a systems and growth company helping businesses build, automate, and scale digital operations across product, commerce, and engineering.” Source: RevenueBase Database · checked Sep 23, 2026
20	619 IT	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	10 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 23, 2026
21	Spotlink	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	10 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 23, 2026
22	Bayside Networks INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	10 contacts →
	Indirect evidence “Bayside specializes in finding new ways to use technology to help its clients’ businesses run smoothly and more efficiently.” Source: RevenueBase Database · checked Sep 23, 2026
23	Delta Infotek	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	1-10	10 contacts →
	Indirect evidence “Welcome to Delta Infotek - Your Trusted Partner in Digital Transformation!” Source: RevenueBase Database · checked Sep 23, 2026
24	Innoworx	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	10 contacts →
	Strong evidence “InnoWorx is an IT solutions company delivering end-to-end technology services from strategy consulting to implementation and long-term support.” Source: RevenueBase Database · checked Sep 23, 2026
25	Valerian Technology	Strong evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	11-50	8 contacts →
	Strong evidence “At Valerian Technology, we're not just a tech consulting firm; we're revolutionizers of the IT consulting landscape.” Source: RevenueBase Database · checked Sep 23, 2026

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: business IT services. 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 business IT services.
Partial evidence: Its own public description names part of business IT services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business IT services. 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 148 business IT services based in San Diego, United States

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Business IT services based in San Diego, United States at a glance

As of Sep 23, 2026

38.6%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

478.4%Largest-city concentration · New York

Sep 23, 2026Page data 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 for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 148 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 business IT 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 “business IT 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 business IT 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 business IT 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, 495 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 23, 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.

Business IT services 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 business IT 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 business IT services are there based in San Diego, United States?

RevenueBase identified 148 business IT 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?

FIT Solutions, LLC, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most business IT services?

New York leads with 708 headquartered companies, followed by Houston (442) and Austin (357).

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 495 verified decision-maker contacts tracked across these 148 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 23, 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.