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Company lists · Data refreshed September 2026

Top 20 IT consulting firms based in San Jose, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 137 companies tracked

RevenueBase identified 137 IT consulting firms headquartered in San Jose, United States as of September 2026 and tracks 5,014 professional contacts across them, including 839 with verified work emails. New York is the largest hub.

This list covers IT consulting firms headquartered in San Jose, 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, how directly it supports the match, and when it was last checked. 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
137Companies
5,014Contacts tracked
839Verified emails
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The 20 largest IT consulting firms based in San Jose, United States

Ranked by team size
Top 20 of 137 IT consulting firms based in San Jose, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Cyber Infrastructure CISIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 20261,001-5,000915

“Think Big.”

Source: company website · checked Sep 4, 2026
2
Nextgen Technologies INCPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 202610001+165

“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…”

Source: company website · checked Sep 4, 2026
3
Flexton INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-200159

“Founded and incorporated in 2007, Flexton Inc.”

Source: company website · checked Sep 4, 2026
4
ACE TechnologiesPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-200159

“At Ace Technologies, we specialize in empowering businesses to achieve their goals by connecting them with exceptional IT talent.”

Source: company website · checked Sep 4, 2026
5
Rapidflow INCPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 2026201-500112

“We are a leading IT services company with expertise in Oracle products and technologies.”

Source: company website · checked Sep 4, 2026
6
ZAG Technical ServicesPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-20099

“ZAG Technical Services was founded in 1998 as a trusted IT adviser and partner to our clients.”

Source: company website · checked Sep 4, 2026
7
Left Right MindIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-20095

“Left Right Mind is a set of people united by the passion to create unquestionable value.”

Source: company website · checked Sep 4, 2026
8
Skyline ATSIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-20086

“Skyline Advanced Technology Services (ATS) is a leading provider of technology, education, professional services and solutions since 1989.”

Source: company website · checked Sep 4, 2026
9
Tranzeal IncorporatedIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 2026201-50080

“Tranzeal is an industry leading global Business Transformation Service Provider.”

Source: company website · checked Sep 4, 2026
10
Walkwater TechnologiesIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 2026201-50064

“Our mission “is to help our customer reduce costs and increase efficiencies, while improving visibility into operations and increasing control of both internal and external…”

Source: company website · checked Sep 4, 2026
11
OpalsoftIndirect evidence
San Jose, United StatesHQ checked Sep 4, 202651-20063

“Opal Soft is a professional services company focused in information technology.”

Source: company website · checked Sep 4, 2026
12
ProgentStrong evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-20059

“National It Consulting - Onsite and Remote Support - Microsoft and Cisco Certified Experts - Windows, Linux, and Mac OS Technical Support - Network Security and Compliance - IT…”

Source: company website · checked Sep 4, 2026
13
Up2date Technology Solution LLCPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 202611-5048

“Up2date Technology Solutions LLC, develop informational technology (IT) Software and integrate with our client's business strategy, enabling them to achieve their business goals.”

Source: company website · checked Sep 4, 2026
14
Advantel NetworksIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-20047

“Advantel Networks is a premier technology solutions provider; designing, implementing and maintaining solutions for customers worldwide.”

Source: company website · checked Sep 4, 2026
15
C9xperts CorpIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 202651-20037

“C9Xperts is a 360-degree company delivering comprehensive tech solutions aimed at redefining the technical landscape of North America.”

Source: company website · checked Sep 4, 2026
16
Eike ConsultingPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 202611-5036

“With over 26 years experience bringing client visions to life, we have found that it starts with listening to you, fully absorbing your dream.”

Source: company website · checked Sep 4, 2026
17
Stallion SIPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 202611-5022

“About Stallion SI Technologies Delivery-first IT engineering for secure, scalable, real-world environments Stallion SI Technologies is a delivery-first IT professional services…”

Source: company website · checked Sep 4, 2026
18
Krypt, INCPartial evidence
San Jose, CA, United StatesHQ checked Sep 4, 2026201-50021

“At Krypt we’re changing the way consulting is executed.”

Source: company website · checked Sep 4, 2026
19
Beshton Software INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 20261-1020

“BESHTON SOFTWARE INC is an information technology and services company based out of 1362 OAK KNOLL DR, SAN JOSE, California, United States.”

Source: company website · checked Sep 4, 2026
20
NevtecStrong evidence
San Jose, CA, United StatesHQ checked Sep 4, 202611-5017

“Nevtec provides IT Managed & Consulting Services for small to medium sized businesses.”

Source: company website · checked Sep 4, 2026

Showing 20 of 137 IT consulting firms based in San Jose, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 839 reachable decision-makers.

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IT consulting firms based in San Jose, United States at a glance

As of Sep 4, 2026
11-50Median size (employees)
New YorkLargest hub · 1002 HQs
Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
50
11-50
44
51-200
22
201-500
13
501-1,000
2
1,001-5,000
3
10001+
3

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Jose, over 137 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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in San Jose, United States whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among IT consulting firms, and records with no verified work email. Companies headquartered outside San Jose 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 an evidence 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, 839 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 4, 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 consulting firms by metro in the United States

Frequently asked

How many IT consulting firms are there based in San Jose, United States?

RevenueBase identified 137 IT consulting firms headquartered in San Jose, 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?

Cyber Infrastructure CIS, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most IT consulting firms?

New York leads with 1002 headquartered companies, followed by Houston (627) and Dallas (504).

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 839 verified decision-maker contacts tracked across these 137 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 4, 2026.

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Related lists

Browse: Companies home · IT consulting firms in United States · All United States lists · All IT consulting firms lists · New lists

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.

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