| # | Company | Employees |
|---|---|---|
| 1 | 45,692 | |
| 2 |
Health Service Executivehse.ie
Provides safe, high quality health and personal social services to the population of Ireland, aiming for a healthier nation with valued healthcare. |
34,791 |
| 3 |
Instituto Mexicano del Seguro Social
An institution in Mexico providing health care and social protection since 1943, focusing on research, medical practice, and retirement resources for workers and families |
18,149 |
| 4 |
Comisión Federal de Electricidadcfe.gob.mx
A Mexican government company generates, transmits, distributes, and sells electricity to millions of customers using various technologies and energy sources |
12,233 |
| 5 |
Universidad de Guadalajaraudg.mx
A prominent Mexican Government University with over 200,000 students, offering a wide range of academic programs and opportunities |
11,516 |
| 6 |
Universidad Autónoma de Nuevo Leónuanl.mx
A leading public university in Mexico's northeast, offering a wide range of academic programs, research centers, libraries, and campuses |
10,385 |
| 7 |
Instituto Politécnico Nacionalipn.mx
A leading public educational institution in Mexico, dedicated to the generation, application, and dissemination of scientific and technological knowledge for national development |
10,383 |
| 8 |
Gobierno de la Ciudad de Méxicocdmx.gob.mx
The Government of Mexico City governs the capital according to national and local constitutions, overseeing 16 boroughs for political organization |
10,357 |
| 9 |
CONALEPconalep.edu.mx
A national technical education institute preparing professionals in various fields to meet the needs of different economic sectors in the country |
8,539 |
| 10 |
National Electoral Institute (INE)
Public institution in Mexico responsible for organizing federal elections, including electing President, Senators, and Deputies Independent entity with legal status |
8,307 |
| 11 |
Universidad Veracruzanauv.mx
Public autonomous university providing diverse educational programs, academic research, and artistic dissemination through various regional campuses, specialized departments, and integrated research institutes in Mexico. |
7,097 |
| 12 |
Universidad Autónoma del Estado de Méxicouaemex.mx
With 185 years of history, this educational institution in Mexico has established itself as one of the best Higher Education Institutions |
6,496 |
| 13 |
UAM Universidad Autónoma Metropolitanauam.mx
A public Mexican university known for academic excellence, social cohesion, and human development One of the top universities in Mexico and Latin America |
6,045 |
| 14 |
Universidad Autónoma de Sinaloauas.edu.mx
A public institution of higher education in Sinaloa, Mexico, committed to forming quality professionals and reducing social inequalities through education and research |
4,943 |
| 15 |
Universidad de Guanajuatougto.mx
A public university in Guanajuato with high rankings in scientific publications, reflecting the quality and relevance of research conducted by professors |
4,806 |
| 16 |
Colegio de Bachilleresgob.mx
A public decentralized organization in Mexico offers high school education in traditional, non-traditional, online, and correctional settings nationwide |
4,763 |
| 17 | 4,687 | |
| 18 |
Universidad Autónoma del Estado de Hidalgouaeh.edu.mx
A university in Hidalgo with over a century of tradition, focusing on student development, institutional strength, and academic rigor |
4,251 |
| 19 |
INFONAVITportalmx.infonavit.org.mx
Provides flexible and fair housing solutions addressing national challenges to reduce housing backlog and promote wellbeing through homeownership. |
4,130 |
| 20 |
HOSPITAL GENERAL DE MEXICOhgm.salud.gob.mx
A leading regional hospital in central Mexico, offering high-quality specialized medical and surgical services, diagnostic support, and investing in research and staff development |
3,524 |
| 21 |
CFE Suministrador de Servicios Basicoscfe.gob.mx
CFE SSB provides basic electricity supply services in Mexico in compliance with energy regulations, following the country's Energy Reform |
3,294 |
| 22 |
Instituto Mexicano del Petróleogob.mx
Leading institution providing technological capabilities to the energy sector through research, innovation, engineering, and training Offers solutions, products, and services to national and international hydrocarbons markets |
3,142 |
| 23 |
Universidad Autónoma de San Luis Potosíuaslp.mx
Public university in Mexico, largest in San Luis Potosí Offering comprehensive academic programs and granted autonomy in 1923 |
3,015 |
| 24 | 2,686 | |
| 25 |
Universidad Juárez Autónoma de Tabascoujat.mx
The company is a higher education institution in Tabasco that has a history dating back to 1861, offering a variety of academic programs and achieving autonomy in 1966 |
2,674 |
| 26 |
Universidad Nacional Autónoma de México (UNAM)unam.mx
A leading Mexican public university known for excellence in art, technology, research, with high selectivity, large student population, and Nobel laureate alumni |
2,609 |
| 27 |
Universidad de Sonoraunison.mx
Higher education institution with 64 years of experience, holding international quality certification |
2,591 |
| 28 |
Universidad de Colimaucol.mx
A provincial Mexican university in Colima, offering educational opportunities and programs to students in the region |
2,578 |
| 29 |
Consejo de la Judicatura Federal Méxicooaj.gob.mx
Oversees administration, discipline, and organization of federal judiciary in Mexico, ensuring justice system efficiency and integrity. |
2,562 |
| 30 |
Instituto de Salud del Estado de Méxicosalud.edomex.gob.mx
Providing timely, quality, and compassionate public health services to promote the full potential of the population in the State of Mexico |
2,379 |
| 31 |
INSTITUTO DE EDUCACIÓN BÁSICA DEL ESTADO DE MORELOS IEBEMiebem.morelos.gob.mx
The organization is committed to providing high-quality educational services, shaping competent and competitive individuals with values in a nurturing environment |
2,293 |
| 32 |
Institute of Technology of Sonoraitson.mx
A public autonomous university in Sonora, Mexico, focused on social development, with over 16,500 students and 2,000 professors across six campuses |
2,197 |
| 33 |
Universidad Autónoma de Aguascalientesen.uaa.mx
An educational institution in Aguascalientes dedicated to providing quality higher education and research opportunities to students and the community |
2,187 |
| 34 |
Universidad de Leónunileon.es
A prestigious university focused on excellence in teaching, research, and innovation, producing graduates who are ready for the job market and committed to societal needs |
2,184 |
| 35 |
Universidad Autónoma de Querétarouaq.mx
An institution of higher education in the state of Querétaro, Mexico, founded on February 24, 1951, providing educational opportunities |
2,132 |
| 36 |
Universidad Autónoma de Chihuahuauach.mx
A leading public university in Mexico offering expert consulting services in a wide range of disciplines for over 50 years |
2,083 |
| 37 |
Universidad Autónoma Chapingochapingo.mx
A public institution focused on agricultural education, research, and environmental issues at the high school and university levels, catering to students from all over Mexico |
1,861 |
| 38 | 1,860 | |
| 39 |
Universidad Autónoma de Zacatecasuaz.edu.mx
A leading educational institution in Zacatecas, Mexico, offering a variety of academic programs in biological, social, engineering, language, art, and health sciences |
1,685 |
| 40 |
BancodeMéxicobanxico.org.mx
Providing domestic currency, ensuring purchasing power stability, promoting financial system development, and facilitating payment systems |
1,637 |
| 41 |
Facultad de Ciencias, UNAM.fciencias.unam.mx
Provides education in natural and exact sciences at the university level through various majors and programs |
1,588 |
| 42 |
Benemérita Universidad Autónoma de Pueblabuap.mx
A leading public autonomous institution focused on comprehensive education, research, knowledge dissemination, social relevance, and ethical principles for a proactive society |
1,576 |
| 43 |
Facultad de Medicina - UNAMfournier.facmed.unam.mx
The company is responsible for managing the School Services Department of the Faculty of Medicine, including an integrated administrative system for undergraduate and postgraduate programs |
1,498 |
| 44 |
National Institute of Medical Sciences and Nutrition Salvador Zubiránincmnsz.mx
A leading Mexican medical institution providing specialized third level medical care with a focus on nutrition and internal medicine |
1,370 |
| 45 |
Tecnológico Nacional de México (TecNM)tecnm.mx
A prominent educational institute in Mexico that provides advanced technical and engineering education and research opportunities for students and professionals |
1,330 |
| 46 |
Instituo Nacional Electoral INEine.mx
The company follows principles of legality, certainty, impartiality, objectivity, independence, and transparency in its operations, as mandated by law |
1,252 |
| 47 |
Centros de Integración Juvenil (CIJ)cij.gob.mx
A social assistance institution specialized in comprehensive care for drug addiction under the Secretaría de Salud, following federal government regulations |
1,194 |
| 48 |
FIRAfira.gob.mx
A second-tier development bank in Mexico providing credit, training, technical assistance, and technology support to agriculture, livestock, fishing, forestry, and agribusiness sectors |
1,178 |
| 49 |
Tecnológico Nacional de Méxicotecnm.mx
The National Technological Institute of Mexico consists of 254 institutions, including Technological Institutes, Research Centers, and Educational Development Centers, serving over 600,000 students |
1,171 |
| 50 |
Secretaria de Salud Jaliscossj.jalisco.gob.mx
Location in Guadalajara, Jalisco Engaged in public health services and initiatives for the community's well-being |
1,154 |
| 51 |
Universidad Autónoma del Estado de Morelosuaem.mx
The company is a Mexican university that focuses on promoting academic, research, and cultural activities within a diverse and inclusive community |
1,144 |
| 52 |
SABESsabes.edu.mx
Provider of advanced high school and higher education in the state of Guanajuato, Mexico |
1,126 |
| 53 |
Infotec, Centro de Investigación e Innovación en TICinfotec.mx
A Mexican public research center focused on developing technological products, reducing operational costs, improving competitiveness, and fostering innovation and collaboration nationally and internationally |
1,092 |
| 54 |
Colegio de Bachilleres del Estado de Oaxacacobao.edu.mx
Providing high-quality secondary education in Oaxaca, Mexico, following national standards to form well-rounded students with social commitment and development |
1,085 |
| 55 |
Sistema Municipal para el Desarrollo Integral de la Familia (SMDIF)pueblacapital.gob.mx
The company focuses on empowering families and vulnerable groups in Puebla through preventative and educational programs, strengthening social fabric and promoting values for a better society |
1,084 |
| 56 |
UTEQuteq.edu.mx
A leading educational institution offering quality professional training, close ties with the industry, 9 university degrees, and a diverse academic faculty |
1,067 |
| 57 |
Órgano de Administración Judicialcjf.gob.mx
The Federal Judicial Council ensures the proper administration and autonomy of courts, promoting impartial and timely justice for society |
1,037 |
| 58 |
INSTITUTO NACIONAL DE ENFERMEDADES RESPIRATORIASiner.gob.mx
Specialized in respiratory diseases research and training high-level professionals in the field of respiratory diseases |
1,007 |
| 59 |
Banco de Méxicobanxico.org.mx
Central bank of the country with autonomous status, focusing on providing national currency, maintaining purchasing power stability, developing financial system, and ensuring payment systems operate smoothly |
1,006 |
| 60 |
Universidad Autónoma de Chiapasunach.mx
A socially responsible higher education institution in Chiapas, Mexico, providing comprehensive education, generating knowledge, promoting culture, and contributing to sustainable development and social well-being |
998 |
| 61 |
Comisión Nacional Bancaria y de Valoresgob.mx
Regulatory agency overseeing the Mexican financial system, responsible for authorization, regulation, supervision, and sanctions of financial institutions and related activities |
977 |
| 62 |
El Colegio de Méxicocolmex.mx
A public university institution in Mexico dedicated to research and higher education in social sciences and humanities, as well as publishing related materials |
975 |
| 63 |
Universidad Michoacana de San Nicolás de Hidalgoumich.mx
A public and secular university inspired by humanism and ideals of historical figures, offering higher education programs |
933 |
| 64 | 920 | |
| 65 |
PENSIONISSSTEgob.mx
PENSIONISSSTE administers and invests workers' retirement funds to provide attractive returns with the lowest market commission, regulated by government financial authorities |
902 |
| 66 |
National Pedagogic University (UPN), Ciudad de Méxicoupn.mx
A Mexican public institution of higher education that trains education professionals, offers specializations, conducts research, and promotes pedagogical culture and artistic expressions |
899 |
| 67 |
Universidad Autónoma de Guerrerouagro.mx
The Autonomous University of Guerrero offers education in seven regions of the state, providing both high school and college level programs |
877 |
| 68 |
Universidad de Quintana Roouqroo.mx
A public university in Quintana Roo, Mexico, dedicated to forming professionals and promoting social and economic development through education and research |
843 |
| 69 |
Universidad Autonoma de Yucatanuady.mx
A public university in Yucatán, Mexico offering various academic programs with central campuses situated in Mérida, the state capital |
841 |
| 70 |
Petróleos Mexicanos S.A. de C.V.pemex.com
A state-owned petroleum company in Mexico with assets worth $41575 billion, ranking as the world's second largest non-publicly listed company |
833 |
| 71 |
CECYTEBCcecytebc.edu.mx
Preparatory school in Baja California offering a comprehensive educational model to prepare students for university and the workforce, with 13 careers and 18 campuses |
819 |
| 72 |
Universidad Autónoma de Coahuila.
A higher education institution in Coahuila, Mexico with multiple faculties and secondary education institutions, established in 1957 and granted autonomy in 1973 |
818 |
| 73 |
CICESEcicese.edu.mx
A scientific research and higher education center in Ensenada, Mexico, contributing to national development through academic excellence and knowledge generation |
808 |
| 74 |
Hospital General Dr. Manuel Gea Gonzálezgob.mx
The company focuses on providing patient-centered health services with a focus on prevention, treatment, and rehabilitation, while also promoting excellence in talent development and innovative research |
804 |
| 75 |
Facultad de Ingeniería de la UNAMingenieria.unam.mx
The company's mission is to train engineering professionals with academic excellence, a sense of ethics, and a commitment to innovation, research, and societal impact Their vision is to be a prestigious educational institution known for producing highly competitive engineers and conducting cutting-edge research |
801 |
| 76 |
Universidad Autónoma de Coahuilauadec.mx
Leading higher education institution in Coahuila, Mexico, focused on providing superior education and academic programs for students in the region |
790 |
| 77 | 779 | |
| 78 |
UADY (Universidad Autónoma de Yucatán)uady.mx
An educational institution promoting comprehensive learning opportunities through quality, relevant, and humanistic education |
777 |
| 79 |
Instituto Tecnológico de Celayacelaya.tecnm.mx
Public education institution founded in 1958, originally offering technical high school services Currently providing higher education at bachelor's, master's, and doctoral levels |
769 |
| 80 |
Instituto Nacional de Bellas Artes-INBAinba.gob.mx
A decentralized entity promoting artistic production, arts dissemination, and art education throughout the country under the Secretariat of Culture |
754 |
| 81 |
Instituto Tecnológico de Moreliamorelia.tecnm.mx
A prestigious public higher education institution in Morelia, Mexico, known for academic, technical, cultural, and sporting excellence, producing leaders and entrepreneurs |
741 |
| 82 | 738 | |
| 83 |
FES Acatlán - UNAMacatlan.unam.mx
A leading educational institution in the northwest area of the metropolitan area, providing an alternative campus with a community of 20,000 students |
728 |
| 84 |
Entel Bolivia
National telecommunications company offering mobile, internet, and fixed-line services, focusing on connectivity and digital solutions across Bolivia. |
705 |
| 85 |
Facultad de Química - UNAMquimica.unam.mx
The Faculty of Chemistry at UNAM is a prestigious institution offering accredited undergraduate and graduate programs, known for its impactful research and education |
691 |
| 86 |
UAdeO Universidad Autónoma de Occidenteuadeo.mx
The Universidad Autónoma de Occidente offers a wide range of educational programs and training to the youth in Sinaloa, promoting quality education and inclusivity |
681 |
| 87 |
Universidad Estatal de Sonoralinktr.ee
An educational institution in Sonora, Mexico, with over 40 years of experience offering a wide range of undergraduate and graduate programs to over 15,000 students |
667 |
| 88 |
Instituto Nacional de Neurología y Neurocirugíainnn.salud.gob.mx
Specializing in neurology and neurosurgery, this institute serves as a center for research and education in the field Email: webmaster@innnedumx |
662 |
| 89 |
STC Metrometro.cdmx.gob.mx
A public decentralized organization operating an electric train system in Mexico City, providing safe, reliable, and environmentally friendly mass transit services |
649 |
| 90 |
Tribunal Superior de Justicia del Estado de Méxicogob.mx
Delivering justice through legal processes and proceedings |
649 |
| 91 |
El Colegio de la Frontera Sur (ECOSUR)ecosur.mx
An interdisciplinary research and higher education center in southern Mexico focusing on biodiversity conservation, society, culture, health, and sustainable development strategies |
631 |
| 92 |
Sistema Nacional para el Desarrollo Integral de las Familiasgob.mx
Public decentralized organization coordinating national social assistance system, promoting comprehensive protection of rights for girls, boys, and adolescents in public and private sectors |
621 |
| 93 |
Instituto Mexicano de la Propiedad Industrial (IMPI)gob.mx
A decentralized public entity with legal authority to manage the industrial property system in the country |
614 |
| 94 |
Financiera Nacional de Desarrollo Agropecuario, Rural, Forestal y Pesquerogob.mx
A decentralized entity within the Mexican government, FND promotes rural development by providing accessible credit and financial services to small producers and SMEs |
608 |
| 95 |
Instituto Nacional de Perinatología (INPer)inper.mx
The company works to improve population's quality of life through human resources in sexual, reproductive, and perinatal health, under national health policies |
605 |
| 96 |
Centro de Investigación y Docencia Económicas A.C.cide.edu
A public institution focused on advancing knowledge in social sciences through research, high-quality academic programs, and socially relevant knowledge generation |
597 |
| 97 |
Banco del Ahorro Nacional y Servicios Financieros BANSEFIgob.mx
The company focuses on strengthening the Mexican financial system to provide diverse financial products to the population, especially those with lower incomes |
591 |
| 98 |
Sacmexmi-sacmex.com.mx
This company was established in 2003 by merging the former DGCOH and CADF, under the government of Andrés Manuel López Obrador |
583 |
| 99 | 580 | |
| 100 |
Caja de Salud de la Banca Privadacsbp.com.bo
Social Security entity in Bolivia providing comprehensive healthcare services to employees in the banking and financial sector nationwide through outpatient, hospitalization, and emergency care |
577 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
More company lists in Mexico
- The largest companies in Mexico 3,238
- Retail chains in Mexico 240
- Higher Education companies in Mexico 197
- Manufacturers in Mexico 195
- Financial Services companies in Mexico 163
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- Food and Beverage Services companies in Mexico 161
- Critical infrastructure operators in Mexico 142
- IT Services and IT Consulting companies in Mexico 125
- Construction companies in Mexico 118
- Motor Vehicle Manufacturing companies in Mexico 115
- Retail companies in Mexico 100
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- Transportation, Logistics, Supply Chain and Storage companies in Mexico 88
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- E-commerce companies in Mexico 73
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- Food and beverage companies in Mexico 68
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- Pharmaceutical Manufacturing companies in Mexico 59
- Telecommunications companies in Mexico 59
- Logistics companies in Mexico 58
- Hotel and hospitality groups in Mexico 56