Company lists · Data refreshed September 2026
Top 25 Systems integration firms based in Houston, United States
RevenueBase identified 144 systems integration firms headquartered in Houston, United States as of September 2026 and tracks 3,038 professional contacts across them, including 1,038 with verified work emails. New York is the largest hub.
This list covers 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 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.
The 25 largest systems integration firms based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 329 contacts → | ||||
Indirect evidence “SiRA Consulting is a Certified MBE consulting company that was founded in 2012.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 115 contacts → | ||||
Indirect evidence “Welcome to Mobiz IT!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 79 contacts → | ||||
Partial evidence “Whether you need one data center installed or a total infrastructure build out for a multi-building campus, i.e.Smart Systems stays flexible so we can meet our customers’ needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 62 contacts → | ||||
Indirect evidence “ProLytX closes the gap between Engineering and I.T.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 49 contacts → | ||||
Indirect 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 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 40 contacts → | ||||
Partial evidence “Parijat Controlware Inc.(Parijat or PCI) is a controls systems integrator since 1989, has been a strong player in the controls, automation industry.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 30 contacts → | ||||
Indirect evidence “CalAtlantic is a leader in the security industry.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Partial evidence “Headquartered in Houston, Texas, EPMI is an international systems integrator with an exceptional reputation for implementing enterprise software in a variety of industries.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Partial evidence “Dell Boomi integration specialists” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Partial evidence “At Arcaise, we are committed to revolutionizing the construction industry through digital integration.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Indirect evidence “Waypoint fills the need for organizations seeking a single company to fulfill not only their hardware and software needs, but provide the professional services to implement and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Partial evidence “technology integration and cabling services” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 24 contacts → | ||||
Indirect evidence “Leading the South Texas region since 1994, CST Corp is one of only 50 Tier Two Cisco Gold partners in the United Sates.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 23 contacts → | ||||
Partial evidence “PennComp is a leading Houston computer services and business network integration firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Partial evidence “At Solid IT Networks, we’re an employee-owned systems integrator focused on designing and supporting secure, high-performance networks.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 22 contacts → | ||||
Indirect evidence “Since 1997 Accutek Technologies has provided turn-key solutions for high performance IT network, structured cabling, and computer and data storage solutions for businesses of all…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: 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 systems integration firms.
- Partial evidence
- Its own public description names part of 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 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 144 systems integration firms based in Houston, United States
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Systems integration firms based in Houston, United States at a glance
As of Sep 14, 2026Companies by employee count
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 144 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 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 “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 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 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, 1,038 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.
Systems integration firms by metro in the United States
- Systems integration firms in New York150
- Systems integration firms in Houston144
- Systems integration firms in Los Angeles82
- Systems integration firms in Chicago75
- Systems integration firms in Dallas74
- Systems integration firms in Atlanta70
- Systems integration firms in Miami70
- Systems integration firms in Austin66
- Systems integration firms in San Diego53
- Systems integration firms in Phoenix49
- Systems integration firms in Tampa46
- Systems integration firms in Denver41
- Systems integration firms in San Antonio41
- Systems integration firms in Charlotte40
- Systems integration firms in Irvine37
- Systems integration firms in Las Vegas35
- Systems integration firms in Seattle35
- Systems integration firms in Indianapolis33
- Systems integration firms in Orlando33
- Systems integration firms in San Francisco33
- Systems integration firms in Washington32
- Systems integration firms in Scottsdale30
- Systems integration firms in Boston29
- Systems integration firms in Pittsburgh26
- Systems integration firms in Plano26
- Systems integration firms in Raleigh26
- Systems integration firms in Louisville25
- Systems integration firms in Nashville25
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 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 systems integration firms are there based in Houston, United States?
RevenueBase identified 144 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?
Sira Consulting, An INC 5000 Company, headquartered in Houston, tops this list with the largest team on record.
Which city has the most systems integration firms?
New York leads with 150 headquartered companies, followed by Houston (144) and Los Angeles (82).
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 1,038 verified decision-maker contacts tracked across these 144 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.
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