Company lists · Data refreshed September 2026

Top 20 IT services companies based in San Jose, United States

Name: IT services companies based in San Jose, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 109 companies tracked

RevenueBase identified 109 company matches for IT services companies associated with San Jose, United States as of September 2026 and tracks 4,788 professional contacts across them, including 723 with verified work emails. Across the United States, New York is the largest hub for this category (667 companies); San Jose has 109.

This list covers company matches for IT services companies associated with San Jose, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 4, 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 RevenueBase SmartSearch · Exact Recorded Sep 4, 2026 How this list was built

109Companies

4,788Contacts tracked

723Verified emails

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The 20 largest IT services companies based in San Jose, United States

Ranked by team size

Top 20 of 109 company matches for IT services companies based in San Jose, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Cyber Infrastructure CIS	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	1,001-5,000	915 contacts →
	Exact match “Think Big.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
2	Nextgen Technologies INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	10001+	165 contacts →
	Exact match “Nextgen Technologies takes pride in helping its customers to succeed through ever changing IT technology and business environment, delivering more time with standing solutions for…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	Flexton INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	159 contacts →
	Exact match “Founded and incorporated in 2007, Flexton Inc.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
4	Encore Software Services, Inc.	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	11-50	143 contacts →
	Exact match “Encore Software Services, Inc.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
5	ZAG Technical Services	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	99 contacts →
	Exact match “ZAG Technical Services was founded in 1998 as a trusted IT adviser and partner to our clients.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
6	Tranzeal Incorporated	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	201-500	80 contacts →
	Exact match “Tranzeal is an industry leading global Business Transformation Service Provider.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
7	Opalsoft	Exact match	San Jose, United StatesHQ recorded Sep 4, 2026	51-200	63 contacts →
	Exact match “Opal Soft is a professional services company focused in information technology.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	Progent	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	59 contacts →
	Exact match “National It Consulting - Onsite and Remote Support - Microsoft and Cisco Certified Experts - Windows, Linux, and Mac OS Technical Support - Network Security and Compliance - IT…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
9	Up2date Technology Solution LLC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	11-50	48 contacts →
	Exact match “Up2date Technology Solutions LLC, develop informational technology (IT) Software and integrate with our client's business strategy, enabling them to achieve their business goals.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	Advantel Networks	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	47 contacts →
	Exact match “Advantel Networks is a premier technology solutions provider; designing, implementing and maintaining solutions for customers worldwide.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
11	Ntranga	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	40 contacts →
	Exact match “About Ntranga Ntranga is a technology services, business solutions and outsourcing organization helping clients globally become world class in their segment and industry.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
12	C9xperts Corp	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	37 contacts →
	Exact match “C9Xperts is a 360-degree company delivering comprehensive tech solutions aimed at redefining the technical landscape of North America.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
13	Stallion SI	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	11-50	22 contacts →
	Exact match “About Stallion SI Technologies Delivery-first IT engineering for secure, scalable, real-world environments Stallion SI Technologies is a delivery-first IT professional services…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
14	Beshton Software INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	1-10	20 contacts →
	Exact match “BESHTON SOFTWARE INC is an information technology and services company based out of 1362 OAK KNOLL DR, SAN JOSE, California, United States.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
15	Computer Networking Solutions, INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	1-10	20 contacts →
	Exact match “Computer Networking Solutions is a leader in providing IT solutions and support services to small and mid-sized businesses.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
16	Sagacent Technologies	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	11-50	15 contacts →
	Exact match “Focused on Silicon Valley's professional service firms (i.e, medical, legal, insurance, accounting, and finance), but open to others as well.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
17	Aptivar INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	51-200	15 contacts →
	Exact match “Aptivar is a professionally managed company in the arena of digital transformation, digital strategy and marketing services.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
18	Ideavat LLC	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	11-50	11 contacts →
	Exact match “ideaVat uses & implements ideas to innovate, build, grow.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
19	Peakit	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	1-10	8 contacts →
	Exact match “We are a US-owned IT solutions provider focused on delivering cutting-edge services to SMBs and large enterprises.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
20	Level UP MSP	Exact match	San Jose, CA, United StatesHQ recorded Sep 4, 2026	1-10	7 contacts →
	Exact match “Level Up MSP is a IT Solutions Provider based in San Jose, California.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT services companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 20 of 109 IT services companies based in San Jose, United States

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IT services companies based in San Jose, United States at a glance

As of Sep 4, 2026

15.1%Verified-email coverage

43.9Average contacts per company

11-50Median size (employees)

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for San Jose, so it is reported there. Company counts and contact totals on this page are exact for San Jose, over 109 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with San Jose, United States whose business descriptions match “IT services companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 723 professional contacts with verified work emails across the full matched dataset. 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 4, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT services companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services companies are there based in San Jose, United States?

RevenueBase identified 109 company matches for IT services companies associated with San Jose, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cyber Infrastructure CIS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most IT services companies?

New York leads the United States with 667 company records, followed by Houston (408) and Austin (303). San Jose has 109.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 723 professional contacts with verified work emails tracked across these 109 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 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.