These professional services firms in Mexico City are mostly large, established companies. Key players include Instituto Mexicano del Petróleo, which provides technological capabilities to the energy sector, KPMG México and Deloitte México, both offering audit, tax, and advisory services, and Scitum S.A. de C.V., an information security integrator. Other notable firms are CAD in architecture and planning, and Chevez Ruiz Zamarripa, specializing in high-level tax advisory.
The firms listed span a range of sectors within professional services, including accounting, IT consulting, construction, and specialized business consulting. A common pattern is the strong presence of companies founded in the latter half of the 20th century, indicating a mature professional services landscape in the city.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
KPMG Méxicokpmg.com
Global organization providing Audit, Tax, and Advisory services through 200 Partners and 3,400 professionals in 17 offices across Mexico, offering global support with local expertise |
2,508 | |||
| 3 |
Deloitte Méxicodeloitte.com
Leading professional services firm in Mexico offering audit, consulting, financial advisory, risk management, tax, and legal services with nationwide coverage and over 5,400 employees |
2,137 | |||
| 4 |
Scitum S.A. de C.V.scitum.com.mx
Leading information security integrator, offering comprehensive consulting and managed services, with over 500 specialists across Latin America. |
1,073 | |||
| 5 | 958 | ||||
| 6 |
Chevez Ruiz Zamarripachevez.com
Specialized firm offering high-level tax advisory and consultancy services with personalized and involved approach, focused on client satisfaction through constant updating |
716 | |||
| 7 |
Baker Tilly Méxicobakertilly.mx
A global firm offering audit, BPO, business consulting, and tax services across 147 countries with 22 offices in Mexico |
667 | |||
| 8 |
Crowe Méxicocrowe.com
With 25 offices nationwide, this company is the 5th largest firm in Mexico offering services such as auditing, taxes, business consulting, and corporate governance |
658 | |||
| 9 |
Contadoracontadora.mx
A Mexican company focused on business intelligence and technology, offering a smart platform to manage accounting, finances, and taxes efficiently |
653 | |||
| 10 |
POSTENSApostensa.com.mx
A leading structural engineering consultancy in Mexico, specializing in post-tensioned building construction with over 10 million square meters built |
617 | |||
| 11 |
Hildebrandohildebrando.com
A global IT services provider with nearshore sourcing, systems development, integration, testing, ITO, and BPO for various industries, founded in 1986 |
545 | |||
| 12 | 541 | ||||
| 13 |
RSM Méxicorsmmx.mx
RSM México is the fifth largest firm of Public Accountants and Business Consultants in Mexico, with 7 Managing Partners, 74 Partners, and over 1,100 employees across 37 offices nationwide |
462 | |||
| 14 |
Migdal Arquitectos SCmigdal.com.mx
A development and construction company specializing in a wide range of projects, aiming to enrich urban environments and create lasting architecture |
451 | |||
| 15 |
Excel Consultoresexcel.com.mx
A team of qualified professionals at a firm specializing in designing fiscal strategies to help companies achieve objectives and improve resource management |
437 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 | 
ASEAvalegal.com.mx
Environmental and social consultancy with a history of shaping socio-environmental law practice in Mexico and Latin America for over three decades |
419 | |||
| 17 |
Creel, García-Cuéllar, Aiza y Enríquez, S.C.creel.mx
A leading full-service corporate law firm with 80 years of experience, offering specialized legal advice in various practice areas to local and international clients |
408 | |||
| 18 |
CBRE Méxicocbre.com.mx
Global leader in real estate consulting, marketing, and services, providing thorough industry insights and trends worldwide, recognized for excellence and sustainability efforts |
387 | |||
| 19 |
Kreston BSG Méxicokrestonbsg.com.mx
Multidisciplinary consulting firm providing comprehensive solutions in legal, tax, assurance, and business consulting Part of KRESTON GLOBAL network, ensuring quality, innovation, and ethics |
379 | |||
| 20 |
Basham, Ringe y Correa, S.C.basham.com.mx
A leading Latin American law firm established in 1912, offering full-service legal expertise with a multidisciplinary approach and global network |
368 | |||
| 21 |
NYCEnyce.org.mx
NYCE specializes in developing standards for Electronics, Telecommunications, and Information Technologies, while also offering services for conformity evaluation, training, and proficiency testing |
354 | |||
| 22 |
Sordo Madalenosordomadaleno.com
Interdisciplinary architecture and design firm based in Mexico City and London, specializing in sustainable community development with 85 years of experience |
343 | |||
| 23 |
Multiplica Talentmultiplicatalent.com
Digital talent recruitment agency with 20 years of experience in Latin America and Europe Specializing in personalized, efficient, and flexible processes for clients and professionals |
335 | |||
| 24 |
Murguíamurguia.com
A company specializing in protecting assets through the marketing of surety bonds, insurance, assistance, and risk management with a blend of experience and innovation |
310 | |||
| 25 |
Garrido Licona y Asociados S.C.garridolicona.com
Tax advisory firm providing peace of mind, protection, and guidance to clients with a fresh perspective A reliable team dedicated to your success |
286 | |||
| 26 |
Grupo Microanalisisgrupo-microanalisis.com
A Mexican organization specializing in Industrial Hygiene, Occupational Health, and Environmental services, ensuring compliance with regulations and corporate policies for over 55 years |
213 | |||
| 27 |
INDEPLOindeplo.com
inDeplo is an engineering solutions company specializing in end-to-end project management office and process optimization with world-class quality standards |
196 | |||
| 28 |
Arochi & Lindnerarochilindner.com
A leading Latin American firm specializing in intellectual property protection, offering services in trademark, copyright, patent, trade secret protection, litigation, and more |
183 | |||
| 29 |
ISLAislarepublica.com
ISLA is a Latin American network of creative agencies with a business consultancy approach, transforming brands through creativity, strategy, research, media, and data |
116 | |||
| 30 |
Sinersys Technologiessinersystech.com
Sinersys Technologies provides business solutions through IT services, specializing in software development, integration, and improving processes for multinational companies |
96 | |||
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How this list is built
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 Nov 12, 2026.
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