Company lists · Data refreshed September 2026

Top 25 Private cloud builders based in the United States

Name: Private cloud builders based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 454 companies tracked

RevenueBase identified 454 private cloud builders headquartered in the United States as of September 2026 and tracks 9,328 professional contacts across them, including 3,036 with verified work emails. New York is the largest hub.

This list covers private cloud builders headquartered in the 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 29, 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 29, 2026 86% judged on-target in blind review

454Companies

9,328Contacts tracked

3,036Verified emails

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The 25 largest private cloud builders based in the United States

Ranked by team size

Top 25 of 454 private cloud builders based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to private cloud builders: 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	ZT Systems	Partial evidence	Secaucus, NJ, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,832 contacts →
	Partial evidence “We create cloud-enabling server solutions that help the world’s leading companies turn their ideas into reality.” Source: RevenueBase Database · checked Sep 29, 2026
2	Rapidscale	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	501-1,000	456 contacts →
	Partial evidence “Unbiased Cloud.” Source: RevenueBase Database · checked Sep 29, 2026
3	Independent Consultant	Partial evidence	Little Rock, AR, United StatesHQ checked Sep 29, 2026	51-200	370 contacts →
	Partial evidence “ClearPointe is an authority on cloud based solutions.” Source: RevenueBase Database · checked Sep 29, 2026
4	Network Center, INC	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 29, 2026	51-200	204 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
5	Kloudrac Group	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	201-500	199 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 29, 2026
6	KR Elixir, Inc.	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	501-1,000	188 contacts →
	Indirect evidence “In the fast-paced business world, a strong digital presence isn’t just an advantage-it’s a necessity.” Source: RevenueBase Database · checked Sep 29, 2026
7	Effectual	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 29, 2026	201-500	174 contacts →
	Partial evidence “Effectual, an AWS Premier Consulting Partner, is an innovative, cloud first managed and professional services company that works with commercial enterprises and the public sector…” Source: RevenueBase Database · checked Sep 29, 2026
8	Strategic Business Systems SBS	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 29, 2026	201-500	169 contacts →
	Indirect evidence “Strategic Business Systems, Inc.(SBS) is an Information Technology (IT) Services Firm headquartered in the Washington, DC metropolitan area.” Source: RevenueBase Database · checked Sep 29, 2026
9	Cloudiq Technologies	Partial evidence	Bellevue, WA, United StatesHQ checked Sep 29, 2026	51-200	160 contacts →
	Partial evidence “CloudIQ is specialized in implementing Cloud Computing Solutions for growing and established enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
10	Tensure	Partial evidence	Cincinnati, CO, United StatesHQ checked Sep 29, 2026	51-200	155 contacts →
	Partial evidence “At Tensure, we help you design, build, and scale cloud environments that standardize delivery and eliminate bottlenecks.” Source: RevenueBase Database · checked Sep 29, 2026
11	Platform9	Strong evidence	San Jose, CA, United StatesHQ checked Sep 29, 2026	51-200	149 contacts →
	Strong evidence “Platform9 is the leader in simplifying enterprise Private Clouds.” Source: RevenueBase Database · checked Sep 29, 2026
12	Unitedlayer	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 29, 2026	201-500	146 contacts →
	Strong evidence “UnitedLayer is the world’s leading private cloud solution provider, empowering enterprises with secure, high-performance infrastructure powered by the latest Agentic AI…” Source: RevenueBase Database · checked Sep 29, 2026
13	NEF	Partial evidence	Newton, MA, United StatesHQ checked Sep 29, 2026	10001+	135 contacts →
	Partial evidence “NEF, Inc, is a professional services firm specializing in several key areas of IT infrastructure, including cloud, multi-national connectivity, data center and colocation, and…” Source: RevenueBase Database · checked Sep 29, 2026
14	Nuvolat Cloud Group	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 29, 2026	51-200	126 contacts →
	Partial evidence “Nuvolat® brings together leading experts from the world of cloud, datacenter and IT services.” Source: RevenueBase Database · checked Sep 29, 2026
15	Pibythree	Partial evidence	Plano, TX, United StatesHQ checked Sep 29, 2026	51-200	114 contacts →
	Partial evidence “Launched in 2022, PibyThree has emerged as a global pioneer in cloud transformation, serving as a trusted partner to some of the world’s most forward-thinking enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
16	ARK Technology Consultants	Indirect evidence	Garden City, NY, United StatesHQ checked Sep 29, 2026	51-200	107 contacts →
	Indirect evidence “Ark Technology Consultants is a premier IT services firm that combines innovative technology solutions with consultative insight into governance and process management.” Source: RevenueBase Database · checked Sep 29, 2026
17	Ittstar Consulting LLC	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	51-200	88 contacts →
	Partial evidence “ITTStar is a full-fledged IT consultant for businesses looking to adopt cloud architecture and cloud-based technologies.” Source: RevenueBase Database · checked Sep 29, 2026
18	Ezops Cloud	Partial evidence	Winter Garden, FL, United StatesHQ checked Sep 29, 2026	51-200	87 contacts →
	Partial evidence “EZOps Cloud is a US-based, fully insured Cloud & DevOps engineering company helping growing companies design, automate, secure, and continuously operate reliable, scalable cloud…” Source: RevenueBase Database · checked Sep 29, 2026
19	Myclouddoor	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 29, 2026	201-500	86 contacts →
	Partial evidence “myCloudDoor is a leading IT Business Consulting and Hands-On Services company specialized in successful Cloud Journey.” Source: RevenueBase Database · checked Sep 29, 2026
20	Experis Technology Group	Partial evidence	Potomac, MD, United StatesHQ checked Sep 29, 2026	11-50	84 contacts →
	Partial evidence “Experis Technology Group is a Hybrid Cloud architecture firm serving large & mid-market enterprises, and federal system integrators for the past two decades with secure, high…” Source: RevenueBase Database · checked Sep 29, 2026
21	REARC	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	83 contacts →
	Partial evidence “Rearc is a boutique Cloud Software & Services firm with engineers that have years of experience shaping the cloud journey of large scale enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
22	Cloud 9 Infosystems, INC	Indirect evidence	Downers Grove, IL, United StatesHQ checked Sep 29, 2026	51-200	83 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
23	Scalecapacity	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	51-200	82 contacts →
	Partial evidence “ScaleCapacity offers consulting services that enable enterprises to move workloads to public cloud quickly and cost efficiently.” Source: RevenueBase Database · checked Sep 29, 2026
24	Fivesky	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	81 contacts →
	Indirect evidence “Fivesky provides advanced technologies to unleash an organization's ability to achieve their highest goals.” Source: RevenueBase Database · checked Sep 29, 2026
25	Cyber City	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	11-50	80 contacts →
	Indirect evidence “Cyber City inc.” Source: RevenueBase Database · checked Sep 29, 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: private cloud builders. 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 private cloud builders.
Partial evidence: Its own public description names part of private cloud builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name private cloud builders. 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 454 private cloud builders based in the United States

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Private cloud builders based in the United States at a glance

As of Sep 29, 2026

32.5%Verified-email coverage

20.5Average contacts per company

11-50Median size (employees)

4.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

212

11-50

157

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 454 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 private cloud builders, 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 the United States whose own description of what they do matches “private cloud builders”. 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 private cloud builders), 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 private cloud builders, and records with no verified work email. Companies headquartered outside United States 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, 3,036 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 29, 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.

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 private cloud builders, 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 private cloud builders are there based in the United States?

RevenueBase identified 454 private cloud builders headquartered in the 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?

ZT Systems, headquartered in Secaucus, tops this list with the largest team on record.

Which city has the most private cloud builders?

New York leads with 19 headquartered companies, followed by San Francisco (13) and San Jose (11).

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 3,036 verified decision-maker contacts tracked across these 454 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 29, 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.