Company lists · Data refreshed September 2026

Top 25 Professional service firms based in Mexico

RevenueBase identified 430 professional service firms headquartered in Mexico as of September 2026 and tracks 3,732 professional contacts across them, including 339 with verified work emails. Ciudad De Mexico is the largest hub.

This list covers professional service firms headquartered in Mexico, 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 20, 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 20, 2026 86% judged on-target in blind review
430Companies
3,732Contacts tracked
339Verified emails
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The 25 largest professional service firms based in Mexico

Ranked by team size
Top 25 of 430 professional service firms based in Mexico, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to professional service 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceCiudad De México, MexicoHQ checked Sep 20, 20261,001-5,000348 contacts →

Indirect evidence

“Con más de 30 años en el mercado mexicano, RSM México es una firma líder en auditoría, impuestos y consultoría con profunda experiencia en diversas industrias y especializaciones…”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceMexicoHQ checked Sep 20, 2026201-500322 contacts →

Indirect evidence

“Bienvenidos a Kreston BSG."Knowing you" Somos una firma de consultoría multidisciplinaria que brinda soluciones integrales mediante la sinergia de un equipo de expertos en el área…”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceMiguel Hidalgo, MexicoHQ checked Sep 20, 202651-20097 contacts →

Indirect evidence

“Proporcionamos servicios profesionales en las áreas de Auditoría, Contabilidad, Impuestos y Consultoría.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceCiudad De México, MexicoHQ checked Sep 20, 202651-20076 contacts →

Indirect evidence

“Más que abogados somos consultores de negocios integrales, la eficacia y prevención de riesgos futuros caracterizan nuestro servicio.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceMéxico, MexicoHQ checked Sep 20, 2026501-1,00075 contacts →

Indirect evidence

“We are a consolidated firm of certified public accountants, lawyers and consultants with national and international presence.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceMonterrey, MexicoHQ checked Sep 20, 2026201-50072 contacts →

Indirect evidence

“Somos una firma de Consultoría de Negocios con más de 50 años de experiencia enfocados en proporcionar soluciones integrales mediante nuestros servicios de Contabilidad…”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceCdmx, MexicoHQ checked Sep 20, 202651-20065 contacts →

Indirect evidence

“Resa y asociados S.C.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceCiudad De Mexico, MexicoHQ checked Sep 20, 202651-20059 contacts →

Indirect evidence

“Flores Serna & Asociados | FS & A, fundada por el Dr.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceMéxico, MexicoHQ checked Sep 20, 202651-20049 contacts →

Indirect evidence

“In Portillo y de la Cruz, S.C, we have managed to integrate a group of specialists who, after several years of constant work and continuous learning, are able to timely tend to…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceMéxico, MexicoHQ checked Sep 20, 202611-5039 contacts →

Indirect evidence

“At Velderrain Sáenz & Asociados, S.C, we specialize in corporate accounting, compliance, audit, and appraisal services.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceQuerétaro, MexicoHQ checked Sep 20, 202611-5034 contacts →

Indirect evidence

“Somos una firma de consultoría líder en materia fiscal, legal y de auditoría financiera, integrada por un equipo de profesionistas altamente experimentados.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceMonterrey, MexicoHQ checked Sep 20, 202651-20034 contacts →

Indirect evidence

“Spanish Version: Somos una de las consultorías más reconocidas en México, estamos enfocados en todo lo relacionado con la asesoría y patrocinio legal en el ámbito financiero…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceMonterrey, MexicoHQ checked Sep 20, 202611-5033 contacts →

Indirect evidence

“Martínez Magallanes Consultores S.C.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceMexico City, MexicoHQ checked Sep 20, 202651-20032 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidencePue, MexicoHQ checked Sep 20, 20261-1023 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceMiguel Hidalgo, MexicoHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“En C&C ASESORES contamos con más de 35 años de experiencia profesional, ofreciendo soluciones integrales innovadoras, altamente especializadas.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceBenito Juarez, MexicoHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

“Somos una empresa de servicios legales, contables y financieros que canaliza sus acciones y conocimientos a la completa seguridad y tranquilidad de las necesidades de negocio de…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceCiudad De Mexico, MexicoHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Paradygm es una firma de servicios legales y contables buscando romper paradigmas.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceCancun, MexicoHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“DG & H is a firm of corporate lawyers, accountants and financial consultants, founded in 1996 in Cancun.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceMexico City, MexicoHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceMonterrey, MexicoHQ checked Sep 20, 202651-20016 contacts →

Indirect evidence

“GHAR II ha redefinido el concepto de consultoría al convertirse en una solución inteligente de servicios integrales de primer nivel, que permite a sus usuarios dedicarse a su…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceSaltillo, MexicoHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“Somos una firma de consultoría, certificada internacionalmente, que brinda servicios especializados en diversas áreas como auditorias, fiscales, financieras, nóminas…”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceMexico City, MexicoHQ checked Sep 20, 20261-1015 contacts →

Indirect evidence

“Innovative consulting firm founded in 2004 by top leaders in the management consulting space- Eight practice leaders; more than twenty-five multi-disciplinary consultants- Four…”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBenito Juárez, MexicoHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“En BE Consultores, nos especializamos en proporcionar soluciones integrales para empresas que buscan optimizar sus procesos y garantizar el cumplimiento normativo en áreas clave…”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceMonterrey, MexicoHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“With over more than 30 years of combined experience, ADH tax team specializes in audit, accounting, tax planning and compliance advisory, and legal team specializes in corporate…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 430 professional service firms based in Mexico

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Professional service firms based in Mexico at a glance

As of Sep 20, 2026
9.1%Verified-email coverage
8.7Average contacts per company
11-50Median size (employees)
12.3%Largest-city concentration · Ciudad De Mexico
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
156
11-50
213
51-200
44
201-500
11
501-1,000
1
1,001-5,000
5

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 430 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 professional service 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 Mexico whose own description of what they do matches “professional service 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 professional service 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 professional service firms, and records with no verified work email. Companies headquartered outside Mexico 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, 339 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 20, 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.

Professional service firms by metro

  • Professional service firms in Ciudad De Mexico53

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 professional service 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 professional service firms are there based in Mexico?

RevenueBase identified 430 professional service firms headquartered in Mexico 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?

RSM México, headquartered in Ciudad De Mexico, tops this list with the largest team on record.

Which city has the most professional service firms?

Ciudad De Mexico leads with 53 headquartered companies, followed by Guadalajara (22) and Monterrey (22).

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 339 verified decision-maker contacts tracked across these 430 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 20, 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.