Company lists · Data refreshed September 2026

Top 25 Legacy system modernization consultancies based in Mexico

Name: Legacy system modernization consultancies based in Mexico
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 169 companies tracked

RevenueBase identified 169 company matches for legacy system modernization consultancies associated with Mexico as of September 2026 and tracks 1,884 professional contacts across them, including 352 with verified work emails. Mexico City is the largest hub.

This list covers company matches for legacy system modernization consultancies associated with Mexico, 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

169Companies

1,884Contacts tracked

352Verified emails

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The 25 largest legacy system modernization consultancies based in Mexico

Ranked by team size

Top 25 of 169 company matches for legacy system modernization consultancies based in Mexico, 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	GCG	Exact match	Miguel Hidalgo, MexicoHQ recorded Sep 28, 2026	51-200	195 contacts →
	Exact match “El éxito de GCG se debe a dos elementos clave: nuestra gente y nuestra calidad de servicio.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	BADAK	Exact match	Mexico City, MexicoHQ recorded Sep 28, 2026	51-200	130 contacts →
	Exact match “Somos una consultoría de software enfocada en ayudar a nuestros clientes a transformar sus negocios a través del uso y adopción de tecnologías que les permitan no sólo automatizar…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	MCS Networks	Exact match	Monterrey, MexicoHQ recorded Sep 28, 2026	201-500	129 contacts →
	Exact match “We are a group of qualified and experienced professionals who combine our talents to solve problems through technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	CIISA	Exact match	San Pedro Garza Garcia, MexicoHQ recorded Sep 28, 2026	51-200	122 contacts →
	Exact match “Somos un equipo de profesionales que entendemos y nos hacemos parte de las necesidades que las empresas día a día están requiriendo en su lucha por ser las más competitivas y…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Movit Group	Exact match	Valle Oriente, MexicoHQ recorded Sep 28, 2026	201-500	101 contacts →
	Exact match “Desde 2014, Movit Group es una consultoría especializada en sistemas de información, con presencia en mercados de alto dinamismo y un modelo de trabajo diseñado para generar valor…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Círculo Daat	Exact match	Alcaldía Cuauhtémoc, MexicoHQ recorded Sep 28, 2026	51-200	63 contacts →
	Exact match “Somos un equipo de consultoría, proyectos y servicios, que establece relaciones de largo plazo con sus clientes y proveedores, agregando valor a sus negocios, procesos y flujos de…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Estrategia Tecnológica	Exact match	Mexico City, MexicoHQ recorded Sep 28, 2026	51-200	56 contacts →
	Exact match “Estrategia Tecnológica helps organizations execute critical technology initiatives with clarity, control, and measurable results.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Alianza Corp	Exact match	MexicoHQ recorded Sep 28, 2026	51-200	53 contacts →
	Exact match “We collaborate in your company's IT strategy to enhance the quality of your processes and your services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Ghimprove	Exact match	Mexico City, MexicoHQ recorded Sep 28, 2026	51-200	38 contacts →
	Exact match “An IT project implementation could be a long & exhausting path and with uncertain results if the IT solution is not implemented in a responsible and correct way.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Trend-It	Exact match	Federal District, MexicoHQ recorded Sep 28, 2026	11-50	30 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	ATDAC	Exact match	Cuauhtémoc, MexicoHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “A través de nuestros casi diez años de permanencia en el mercado, hemos sumado a nuestras filas las tecnologías más disruptivas, así como los recursos con mayor experiencia…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Itnnovation	Exact match	Torreón, MexicoHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “At Itnnovation, we understand the necessities of your company, and we offer effective solutions that address those needs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Biaani Consultancy Services	Exact match	México Df, MexicoHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “Biaani Consultancy Services es una empresa de consultoría, desarrollo, e integración de sistemas, joven por su gente y grande por su experiencia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Sitméxico	Exact match	México D.f., MexicoHQ recorded Sep 28, 2026	51-200	25 contacts →
	Exact match “Nuestras soluciones están enfocadas a resolver las necesidades específicas para tu compañía y ofrecemos soluciones tecnológicas a la medida, mediante una consultoría e…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Ceico ITT	Exact match	Guadalajara, MexicoHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “En Ceico creemos en un futuro donde las empresas medianas y grandes operen con total confianza tecnológica: sin miedo a brechas de seguridad, sin infraestructura que las limite, y…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Consejeros Profesionales EN Sistemas S.A. DE C.V. Copsis	Exact match	Monterrey, MexicoHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “Tecnología Nuestra plataforma de desarrollo permite integrar tecnologías de última generación, por lo que hemos logrado llevar nuestras soluciones mas allá de solo una consulta…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Hallmg Consulting, S.A	Exact match	Zapopan, MexicoHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match “Consultoria en Computacion para su empresa, ayudamos a implantar sistemas y a lograr proyectos exitosos de tecnologias de informacion, que logren claros retornos de inversion.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Nemaris	Exact match	Mexico City, MexicoHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “At Nemaris we are experts in specialized consulting services and solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	6delta Consultores	Exact match	Roma Sur, MexicoHQ recorded Sep 28, 2026	51-200	13 contacts →
	Exact match “6Delta es una Empresa de Consultoría con más de 10 años de experiencia; especializada en transformación de negocios, arquitectura empresarial, optimización y gobierno de procesos…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Sysviewsoft	Exact match	Mexico City, MexicoHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “Consultoría especializada en proyectos de migración y modernización de aplicaciones entre plataformas Mainframe y abiertas (Unix-Linux).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Tecnoimplanta	Exact match	\|\| Benito Juárez, MexicoHQ recorded Sep 28, 2026	51-200	10 contacts →
	Exact match “Your ideal strategic partner to implement business strategies with state of the art information technology web and mobile by agile solutions, faster than ever, high ROI and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Recursos Humanos Plan B Consultoría DE Sistemas	Exact match	Monterrey, MexicoHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Tenemos un valor excepcional con servicios de arquitectura, consultoría, desarrollo e implementación de sistemas de información, expertos locales del sector, soluciones y la…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Go4it	Exact match	Álvaro Obregón, MexicoHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Digital Transformation at a glance!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Dbasys13	Exact match	Col Del Valle Centro, MexicoHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Brindamos soluciones de alta calidad buscando la eficiencia en la operación y funcionamiento tecnológico a través del diseño, implementación, administración, asesoría y soporte de…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Contein SA DE CV	Exact match	Monterrey, MexicoHQ recorded Sep 28, 2026	11-50	9 contacts →
	Exact match “Consultoria en tecnologia en Información.” 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 169 legacy system modernization consultancies based in Mexico

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Legacy system modernization consultancies based in Mexico at a glance

As of Sep 28, 2026

18.7%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

16.6%Largest-city concentration · Mexico City

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Mexico, so it is reported there. Company counts and contact totals on this page are exact for Mexico, over 169 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 Mexico 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 352 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.

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 Mexico?

RevenueBase identified 169 company matches for legacy system modernization consultancies associated with Mexico 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?

GCG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most legacy system modernization consultancies?

Mexico City leads with 28 company records, followed by Monterrey (16) and Mexico (8).

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 352 professional contacts with verified work emails tracked across these 169 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.

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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 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.