Company lists · Data refreshed September 2026

Top 25 Legacy system modernization consultancies based in Houston, United States

Name: Legacy system modernization consultancies 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 73 companies tracked

RevenueBase identified 73 company matches for legacy system modernization consultancies associated with Houston, United States as of September 2026 and tracks 1,021 professional contacts across them, including 207 with verified work emails. Across the United States, New York is the largest hub for this category (92 companies); Houston follows with 73.

This list covers company matches for legacy system modernization consultancies associated with Houston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

73Companies

1,021Contacts tracked

207Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest legacy system modernization consultancies based in Houston, United States

Ranked by team size

Top 25 of 73 company matches for legacy system modernization consultancies based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Sira Consulting, An INC 5000 Company	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	201-500	329 contacts →
	Exact match “SiRA Consulting is a Certified MBE consulting company that was founded in 2012.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Qadworks	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	51-200	95 contacts →
	Exact match “QADWorks is a Texas based IT consulting company founded in 2019.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Osscube	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	201-500	75 contacts →
	Exact match “Established in 2008, OSSCube, a division of Happiest Minds, is the digital transformation and modernization partner for global enterprise to fast growing start-ups, helping them…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	3545 Consulting-Global	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	42 contacts →
	Exact match “3545 Consulting ™ specializes in implementing hardware, software, and service solutions for a variety of businesses, including law firms, legal entities, educational institutions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Zirlen Technologies INC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match “About Zirlen Zirlen Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	EPC Group.Net	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	201-500	30 contacts →
	Exact match “EPC Group is a nationally recognized Microsoft consulting firm helping organizations modernize, migrate, secure, automate, and scale Microsoft cloud, AI, collaboration, and data…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Data Strategies Interchange, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Data Strategies Interchange is a leading provider of large-scale data migration and conversion services to Fortune 500 and Global companies that need to upgrade from older…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Qubryx	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “At Qubryx, we are a cloud-first, future-focused technology consulting firm that helps organizations accelerate their adoption of best-in-class software development and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Rockit Consulting LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “We offer a range of IT consulting services all designed to help your company reach its potential.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Magnum Forge	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Magnum Forge is now a part of Novus Consulting!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Silver BAY Consulting	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Our Mission is to Design, Implement and Support System solutions that increase Business productivity and profitability.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Lumiere Systems	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	19 contacts →
	Exact match “With years of experience in helping businesses grow, we’ve mastered the skills of understanding business requirements irrespective of the industry they serve.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Celersoft Technology And Consulting Services	Exact match	Houston, United StatesHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “Celersoft is leading the charge in IT innovation, revolutionizing businesses with state-of-the-art solutions and agile delivery methods.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Nepstaff	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Nepstaff is IT Services & consulting provider.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Deljoosoft	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “DeljooSoft helps government and mid-to-large organizations modernize legacy systems, integrate enterprise applications, and implement scalable digital platforms that improve…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Sembix	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “Sembix is the end-to-end Modernization Intelligence platform that helps organizations fully understand the system they have, define the system they want, and automate the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Bluecloud Technologies	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	6 contacts →
	Exact match “BlueCloud Technologies is an adaptable, resourceful team that solves business problems through the practical application of the most appropriate information technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Mykrill	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	5 contacts →
	Exact match “MyKrill is a strategic Digital & IT Solutions Partner focused on providing IT services, leadership, and triumphant outcomes for customers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Technolync	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Technolync, We provide IT consulting, services, and solutions for your business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Cleveris Technologies	Exact match	Houston, United StatesHQ recorded Sep 28, 2026	11-50	4 contacts →
	Exact match “Behind many successful organizations there are mature legacy applications at the core of vital business processes, and they are too valuable to be left behind.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Virtuoso Technologies INC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	3 contacts →
	Exact match “Virtuoso Technologies is a leading provider of IT services and IT consulting solutions for businesses of all sizes.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Intertech Consulting, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “Intertech Consulting focuses on the intersection of technology and business, a place where strategic consulting, project management, and information systems implementation…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Reliant Global Technology, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	2 contacts →
	Exact match “Reliant Global Technology focuses on simplifying business transformation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	A.R.E. Information Technology Systems	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	11-50	1 contacts →
	Exact match “Our team is made up of a group of highly skilled experts in strategic technology, business processes, and system implementation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Yoppa Tech Solutions	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Yoppa Inc is a full service IT consulting firm providing business services and solutions, helping customers command the powerful tools of Information Technology for a competitive…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “legacy system modernization consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 73 legacy system modernization consultancies based in Houston, United States

See the full list, filter by size, metro and specialty, and access 207 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Legacy system modernization consultancies based in Houston, United States at a glance

As of Sep 28, 2026

20.3%Verified-email coverage

14.0Average 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 73 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Houston, United States whose business descriptions match “legacy system modernization consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 207 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Legacy system modernization consultancies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “legacy system modernization consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy system modernization consultancies are there based in Houston, United States?

RevenueBase identified 73 company matches for legacy system modernization consultancies associated with Houston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sira Consulting, An INC 5000 Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most legacy system modernization consultancies?

New York leads the United States with 92 company records, followed by Houston (73) and Austin (60).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 207 professional contacts with verified work emails tracked across these 73 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 73 legacy system modernization consultancies based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Legacy system modernization consultancies by geography

Browse the directory

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 SmartSearch, 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.