Company lists · Data refreshed September 2026

Top 25 Enterprise IT infrastructure companies based in San Francisco, United States

RevenueBase identified 71 enterprise IT infrastructure companies headquartered in San Francisco, United States as of September 2026 and tracks 1,057 professional contacts across them, including 327 with verified work emails. New York is the largest hub.

This list covers enterprise IT infrastructure companies headquartered in San Francisco, 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 14, 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 14, 2026 86% judged on-target in blind review
71Companies
1,057Contacts tracked
327Verified emails
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The 25 largest enterprise IT infrastructure companies based in San Francisco, United States

Ranked by team size
Top 25 of 71 enterprise IT infrastructure companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise IT infrastructure 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 evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500199 contacts →

Indirect evidence

“With globalization making rapid changes across industries and consumers becoming ever so demanding, organizations need to quickly take account of their limited resources and…”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500164 contacts →

Indirect evidence

“LATERAL (Technology with Passion) adds business value through full service technology solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026501-1,000113 contacts →

Indirect evidence

“Atom is a leading modern technology services company providing the most innovative cloud and digital transformation solutions, with carefully curated “living” services across…”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500108 contacts →

Indirect evidence

“Computacenter has acquired FusionStorm!”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5031 contacts →

Partial evidence

“If your business’s IT service demands have left you feeling vulnerable or overloaded, you’re in the right place.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-20025 contacts →

Partial evidence

“AEC firms build great things, but too often, IT disruptions slow progress, cause missed deadlines, and drain team productivity.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5024 contacts →

Strong evidence

“Universal Tech is simplifying and changing the way that enterprises manage, maintain and upgrade their IT infrastructure by educating clients on ALL THE OPTIONS available to them.”

Source: RevenueBase Database · checked Sep 14, 2026
8Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5020 contacts →

Strong evidence

“Vinco is a boutique IT strategy and infrastructure consulting firm that empowers organizations to design, source, and scale complex technology environments confidently.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5017 contacts →

Partial evidence

“boxIT has been providing reliable and cost-effective IT services to businesses through automation, 24/7 management, and a data-driven yet human approach since 2001.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5017 contacts →

Strong evidence

“Novani is an IT Systems Integrator specializing in: Business continuity solutions Intelligent Transportation Systems (ITS) Colocation hosting infrastructure design and management…”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-20017 contacts →

Partial evidence

“GroupA is an Enterprise Cloud Services firm working with PE sponsors, portfolio companies, and complex enterprise environments across North America.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“Bay Computing Group is the best choice for reliable technology solutions and first-class support.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

“Coffer Group is headquartered in San Francisco, providing tailored technology solutions since 2007.”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“DHAP Digital, Inc.”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 20261-1012 contacts →

Partial evidence

“Look Left Marketing specializes in infrastructure technology.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-20010 contacts →

Partial evidence

“BEAR Cloud supports our customers in transforming their business operations into a secure, cost effective and supportable IT environment.”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

“TransformITive is an MXP – Managed Transformation Provider helping MSPs Press PLAY to accelerate their client’s AI journey and start jamming to what they love.”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceSan Francisco, United StatesHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

“Since 2001, we’ve been building custom designed networks for leading organizations and many of the top 100 retailers in the U.S.”

Source: RevenueBase Database · checked Sep 14, 2026
19Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 20261-108 contacts →

Partial evidence

“Fluent is the Cloud Infrastructure Company™.”

Source: RevenueBase Database · checked Sep 14, 2026
20Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-2008 contacts →

Partial evidence

“Atompod provides comprehensive IT solutions, supporting your business from initial design to ongoing operations.”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-2007 contacts →

Partial evidence

“For IT solutions San Francisco, ALTERNIS IT takes pride in delivering world-class IT services tailored specifically for small and mid-sized businesses.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“We provide digital infra structure such as those for data centers, network integration, converged communication, hybrid cloud, and a variety of capabilities for corporate…”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
24Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 20261-105 contacts →

Partial evidence

“We design, build, and deploy systems infrastructure and applications to help companies of virtually every size in every industry solve unique business challenges.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“Fight Club Tech is your partner in digital transformation and security.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 71 enterprise IT infrastructure companies based in San Francisco, United States

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Enterprise IT infrastructure companies based in San Francisco, United States at a glance

As of Sep 14, 2026
30.9%Verified-email coverage
14.9Average contacts per company
11-50Median size (employees)
315.5%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
27
51-200
8
201-500
3
501-1,000
4

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 71 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 enterprise IT infrastructure 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 San Francisco, United States whose own description of what they do matches “enterprise IT infrastructure 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 enterprise IT infrastructure 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 enterprise IT infrastructure companies, and records with no verified work email. Companies headquartered outside San Francisco 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, 327 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 14, 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.

Enterprise IT infrastructure 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 enterprise IT infrastructure 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 enterprise IT infrastructure companies are there based in San Francisco, United States?

RevenueBase identified 71 enterprise IT infrastructure companies headquartered in San Francisco, 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?

Kloudrac Group, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most enterprise IT infrastructure companies?

New York leads with 224 headquartered companies, followed by Houston (187) and Atlanta (117).

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 327 verified decision-maker contacts tracked across these 71 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 14, 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.