Company lists · Data refreshed September 2026

Top 17 Software outsourcing companies based in Santa Clara, United States

RevenueBase identified 61 software outsourcing companies headquartered in Santa Clara, United States as of September 2026 and tracks 1,645 professional contacts across them, including 153 with verified work emails. New York is the largest hub.

This list covers software outsourcing companies headquartered in Santa Clara, 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 6, 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 6, 2026 86% judged on-target in blind review
61Companies
1,645Contacts tracked
153Verified emails
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The 17 largest software outsourcing companies based in Santa Clara, United States

Ranked by team size
Top 17 of 61 software outsourcing companies based in Santa Clara, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software outsourcing companies: 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 evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 20261,001-5,000344 contacts →

“Let us join your journey to success!”

Source: company website · checked Sep 6, 2026
2Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 2026501-1,000203 contacts →

“Alpha Net Consulting is a global IT services firm with over two decades of experience delivering strategic IT staffing, managed services, enterprise software development, and…”

Source: company website · checked Sep 6, 2026
3Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-200153 contacts →

“At Saasvaap, we specialize in delivering next-generation software solutions that help businesses simplify, scale, and succeed.”

Source: company website · checked Sep 6, 2026
4Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 2026201-500139 contacts →

“EffOne was founded by a team of Software Engineers in 1996, as a California Corporation with the mission of providing custom software development services.”

Source: company website · checked Sep 6, 2026
5Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-200106 contacts →

“EITACIES Inc, established since 2008 with globally integrated service centers, a pioneer in providing software development services in SOA, Cloud Integration, Cyber Security &…”

Source: company website · checked Sep 6, 2026
6Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 2026201-50066 contacts →

“We are proud to provide our clients with the latest in IT services and solutions.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-20066 contacts →

“Founded in we are an IT consulting and solutions company Headquartered in Santa Clara, California with branch offices in Pennsylvania.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-20055 contacts →

“We Keep IT Moving Founded in 1993, cyberCSI is a privately held company headquartered in Santa Clara, California.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-20044 contacts →

“Opallios brings to the market a unique combination of technology and business skill set that has enabled us to revolutionize product development lifecycle.”

Source: company website · checked Sep 6, 2026
10Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202611-5041 contacts →

“Omega was incorporated in 2007 in the State of California to offer high end IT Solutions ranging from IT Software and product development to technology deployment and specialize…”

Source: company website · checked Sep 6, 2026
11Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-20029 contacts →

“Appulse is a global Software Consulting firm committed to innovation, quality and service.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-20020 contacts →

“We specialize in covering technology desires of companies from various industries: creating and running dedicated development, QA teams and offshore sites, technology consulting.”

Source: company website · checked Sep 6, 2026
13Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202651-20020 contacts →

“Sigma's Mission is to deliver superior outsourcing services and professional solutions to world market.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202611-5018 contacts →

“Excellentric Infosystems specializes in mobile application development, Website designs and game development.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202611-509 contacts →

“Founded in 2003, AC InfoTech Inc, is an advanced consulting and information technology services company specializing in Business Intelligence Solutions, Network, Mobile…”

Source: company website · checked Sep 6, 2026
16Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 6, 202611-502 contacts →

“We help clients design and develop innovative, custom software apps across all platforms.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceSanta Clara, United StatesHQ checked Sep 6, 202611-501 contacts →

“For the past two decades, our core team of engineers is redefining the IT infrastructure and Operations industry here in Silicon Valley and for customers across North America.”

Source: company website · checked Sep 6, 2026

Showing 17 of 61 software outsourcing companies based in Santa Clara, United States

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Software outsourcing companies based in Santa Clara, United States at a glance

As of Sep 6, 2026
9.3%Verified-email coverage
27.0Average contacts per company
11-50Median size (employees)
941.0%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
26
51-200
19
201-500
3
501-1,000
3
1,001-5,000
1

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 Santa Clara, over 61 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 software 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 Santa Clara, United States whose own description of what they do matches “software 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 software 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 software outsourcing companies, and records with no verified work email. Companies headquartered outside Santa Clara 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, 153 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 6, 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.

Software outsourcing companies 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 software 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 software outsourcing companies are there based in Santa Clara, United States?

RevenueBase identified 61 software outsourcing companies headquartered in Santa Clara, 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?

Tech Firefly, headquartered in Santa Clara, tops this list with the largest team on record.

Which city has the most software outsourcing companies?

New York leads with 574 headquartered companies, followed by Austin (370) and Houston (292).

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 153 verified decision-maker contacts tracked across these 61 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 6, 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.