Company lists · Data refreshed September 2026

Top 25 IT systems integration firms based in Houston, United States

Name: IT systems integration firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 180 companies tracked

RevenueBase identified 180 IT systems integration firms headquartered in Houston, United States as of September 2026 and tracks 4,079 professional contacts across them, including 1,110 with verified work emails. Across the United States, New York is the largest hub for this category (214 companies); Houston follows with 180.

This list covers IT systems integration firms headquartered in Houston, 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 28, 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 28, 2026 86% judged on-target in blind review

180Companies

4,079Contacts tracked

1,110Verified emails

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The 25 largest IT systems integration firms based in Houston, United States

Ranked by team size

Top 25 of 180 IT systems integration firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT systems integration firms: 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	Fluxtek Solutions INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	501-1,000	523 contacts →
	Partial evidence “Fluxtek Solutions Inc has established a track record as a leading fast growing IT consulting, services, and outsourcing firm.” Source: RevenueBase Database · checked Sep 28, 2026
2	Sira Consulting, An INC 5000 Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	329 contacts →
	Indirect evidence “SiRA Consulting is a Certified MBE consulting company that was founded in 2012.” Source: RevenueBase Database · checked Sep 28, 2026
3	Cognisive	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	311 contacts →
	Partial evidence “Cognisive is an esteemed IT Consulting and Services firm that provides extensive support across multiple technological facets, including web, applications, data, networks, and…” Source: RevenueBase Database · checked Sep 28, 2026
4	MCA Communications, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	501-1,000	207 contacts →
	Indirect evidence “MCA Communications is a Design-Build Technology Integrator specializing in network cabling infrastructure, audio visual installations, wireless solutions, and security solutions…” Source: RevenueBase Database · checked Sep 28, 2026
5	Stellium INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	205 contacts →
	Indirect evidence “Stellium is a specialized management consulting firm committed to designing and delivering solutions that improve businesses worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
6	3s Business Corporation INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	185 contacts →
	Indirect evidence “3S Business Corporation is a specialized Software & Consulting Services Provider based in Houston, TX, which helps clients plan, implement and maintain their technology…” Source: RevenueBase Database · checked Sep 28, 2026
7	ECOM	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	160 contacts →
	Indirect evidence “ECOM is an information technology consulting firm who is a respected leader in providing innovative service and solutions for Fortune companies.” Source: RevenueBase Database · checked Sep 28, 2026
8	Fulcrum Technology Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	124 contacts →
	Partial evidence “The Fulcrum team of technologists are recognized experts in the fields of IT Infrastructure Technology, Security, Service Management and Support.” Source: RevenueBase Database · checked Sep 28, 2026
9	MOBIZ	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	115 contacts →
	Partial evidence “Welcome to Mobiz IT!” Source: RevenueBase Database · checked Sep 28, 2026
10	Integration Objects	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	106 contacts →
	Strong evidence “Integration objects is a world-leading systems integrator and solutions provider specialized in operations and manufacturing intelligence, advanced analytics, preventive detection…” Source: RevenueBase Database · checked Sep 28, 2026
11	Soap Engineering, LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	87 contacts →
	Strong evidence “We have earned a reputation as a global leader in Design/Build & Systems Integration for more than 30 years.” Source: RevenueBase Database · checked Sep 28, 2026
12	Automation Solutions, LP Autosol	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	82 contacts →
	Strong evidence “AUTOSOL began in October of 1988 as a systems integration and services company.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cloudgen LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	73 contacts →
	Indirect evidence “When the world’s largest banks, retailers, and government agencies seek digital innovation, they rely on CloudGen.” Source: RevenueBase Database · checked Sep 28, 2026
14	Minisoft Technologies LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	63 contacts →
	Partial evidence “Minisoft Solutions Inc – Empowering Businesses Through Innovative IT Services.” Source: RevenueBase Database · checked Sep 28, 2026
15	Prolytx	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “ProLytX closes the gap between Engineering and I.T.” Source: RevenueBase Database · checked Sep 28, 2026
16	Maddisoft	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	501-1,000	49 contacts →
	Partial evidence “Maddisoft is a full-service IT solutions and services provider headquartered in Houston, Texas, delivering innovative technology solutions to businesses worldwide since 2004.” Source: RevenueBase Database · checked Sep 28, 2026
17	Enterprise Systems	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	43 contacts →
	Partial evidence “Enterprise Systems is a systems integrator with offices in Houston, TX, New Orleans LA and Charlotte, NC.” Source: RevenueBase Database · checked Sep 28, 2026
18	Convergentz	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Strong evidence “As a technology leader and master systems integrator, Convergentz integrates IT and traditional building system functions to improve Building Performance, Environmental Comfort…” Source: RevenueBase Database · checked Sep 28, 2026
19	3545 Consulting-Global	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “3545 Consulting ™ specializes in implementing hardware, software, and service solutions for a variety of businesses, including law firms, legal entities, educational institutions…” Source: RevenueBase Database · checked Sep 28, 2026
20	Insource Technology	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Insource is a Houston-based information technology services provider.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cinesys LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Strong evidence “CineSys is a Broadcast and Media Systems Integrator providing solutions, integration and support for digital content creators across North America.” Source: RevenueBase Database · checked Sep 28, 2026
22	Ascend IT Management Consulting	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	31 contacts →
	Partial evidence “Ascend is formed by a team of IT Executives who have capitalized on their experience and proven track record to provide efficient and effective solutions for its clients.” Source: RevenueBase Database · checked Sep 28, 2026
23	Techknowledge	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “TechKnowledge Consulting Corporation is a Information Technology Consulting Company focusing on telecommunications and data systems, audio / visual solutions, security systems…” Source: RevenueBase Database · checked Sep 28, 2026
24	Connective Talent	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “Connective Talent is a national IT services firm founded in 2011.” Source: RevenueBase Database · checked Sep 28, 2026
25	EPC Group.Net	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	30 contacts →
	Indirect evidence “EPC Group is a nationally recognized Microsoft consulting firm helping organizations modernize, migrate, secure, automate, and scale Microsoft cloud, AI, collaboration, and data…” Source: RevenueBase Database · checked Sep 28, 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: IT systems integration firms. 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 IT systems integration firms.
Partial evidence: Its own public description names part of IT systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT systems integration firms. 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 180 IT systems integration firms based in Houston, United States

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IT systems integration firms based in Houston, United States at a glance

As of Sep 28, 2026

27.2%Verified-email coverage

22.7Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 180 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 systems integration firms, 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 Houston, United States whose own description of what they do matches “IT systems integration firms”. 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 IT systems integration firms), 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 IT systems integration firms, and records with no verified work email. Companies headquartered outside Houston 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, 1,110 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 28, 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 systems integration firms 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 IT systems integration firms, 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 IT systems integration firms are there based in Houston, United States?

RevenueBase identified 180 IT systems integration firms headquartered in Houston, 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?

Fluxtek Solutions INC, headquartered in Houston, tops this list with the largest team on record.

Which city in the United States has the most IT systems integration firms?

New York leads the United States with 214 headquartered companies, followed by Houston (180) and Atlanta (119).

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 1,110 verified decision-maker contacts tracked across these 180 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 28, 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.