# The 31 largest accounting firms in Spain

Tamtam tracks 31 accounting firms headquartered in Spain. This list ranks all of them by number of employees on LinkedIn, led by KPMG España, PwC España and AUREN. Their median headcount is 361. Half of them were founded in 1990 or later. The most common headquarters are Madrid (14) and Barcelona (8).

These are large and mid-sized accounting and professional services firms in Spain. They offer audit, tax, legal, and business advisory services to a range of clients. KPMG España, with 5,523 employees, and PwC España, with 3,761 employees, are among the largest. Other notable firms include AUREN, which specializes in advanced audit and advisory, and BDO Spain, a global professional services provider.

The majority of these firms are headquartered in Madrid, indicating a concentration of the professional services sector in the capital. Companies like Grant Thornton España and RSM Spain also have a significant presence, providing comprehensive services across the country. Many of these firms are part of larger international networks, combining global reach with local expertise.

🇪🇸 Spain · 31 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [KPMG España](https://www.tamtam.ai/c/kpmg-espana) (kpmg.com)<br>Professional services firm providing audit, tax, legal, financial, and business advisory with global expertise and local market knowledge. | Professional Services | 🇪🇸 Madrid | 5,523 |  |
| 2 | [PwC España](https://www.tamtam.ai/c/pwc-espana) (pwc.es)<br>Provides audit, tax, legal, consulting, and transaction services across Spain, helping businesses navigate change and build trust. | Business Consulting and Services | 🇪🇸 Madrid | 3,761 | 1929 |
| 3 | [AUREN](https://www.tamtam.ai/c/auren) (auren.com)<br>Auren is a Spanish firm specializing in advanced audit, advisory, and consulting services to improve company management through innovation, quality, and professional ethics | Business Consulting and Services | 🇪🇸 Madrid | 1,165 |  |
| 4 | [BDO Spain](https://www.tamtam.ai/c/bdo-spain) (bdo.es)<br>Global professional services firm providing audit, legal, advisory, and outsourcing tailored to diverse clients across industries and countries. | Business Consulting and Services | 🇪🇸 Madrid | 1,003 |  |
| 5 | [PKF Attest](https://www.tamtam.ai/c/pkf-attest) (pkf-attest.es)<br>A leading professional services firm in Spain, part of PKF International Network, with over 600 professionals and 11 offices across the country | Business Consulting and Services | 🇪🇸 Bilbao | 904 | 1990 |
| 6 | [Grant Thornton España](https://www.tamtam.ai/c/grant-thornton-espana) (grantthornton.es)<br>Leading global professional services provider, specializing in Audit, Business Consulting, Technology & Innovation, Tax, Legal, Financial, Labor, and Outsourcing services. | Business Consulting and Services | 🇪🇸 Madrid | 880 | 1984 |
| 7 | [Forvis Mazars in Spain](https://www.tamtam.ai/c/forvis-mazars-in-spain) (forvismazars.com)<br>An international firm providing audit, consulting, legal, and tax advisory services, committed to helping clients and professionals succeed while promoting trust and responsibility | Business Consulting and Services | 🇪🇸 Barcelona | 640 |  |
| 8 | [RSM Spain](https://www.tamtam.ai/c/rsm-spain) (rsm.es)<br>Leading audit, tax, and legal advisory and consulting firm. Serves local and multinational companies, focusing on client understanding and challenges. | Professional Services | 🇪🇸 Barcelona | 574 | 1975 |
| 9 | [Andersen in Spain](https://www.tamtam.ai/c/andersen-in-spain) (es.andersen.com)<br>The company provides independent legal and tax services globally through Andersen Global, avoiding conflicts of interest and ensuring seamless client coordination | Legal Services | 🇪🇸 Madrid | 470 |  |
| 10 | [Afianza](https://www.tamtam.ai/c/afianza) (afianza.es)<br>A team of 450+ professionals in Spain providing expert advice to businesses, focusing on adding value and promoting growth through tailored services | Business Consulting and Services | 🇪🇸 Madrid | 463 | 2001 |
| 11 | [Auren International](https://www.tamtam.ai/c/auren-international) (auren.com)<br>Firm provides audit, consulting, tax, legal, and corporate finance services for organizations' sustainable development, offering solutions with experienced teams. | Business Consulting and Services | 🇪🇸 Auren Global | 461 | 1998 |
| 12 | [Baker Tilly España](https://www.tamtam.ai/c/baker-tilly-espana)<br>A national business advisory firm offering audit, tax, legal advice, accounting, and management services to SMEs and multinational companies globally | Business Consulting and Services | 🇪🇸 Madrid | 455 |  |
| 13 | [CE Consulting Empresarial](https://www.tamtam.ai/c/ce-consulting-empresarial) (ceconsulting.es)<br>CE Consulting Empresarial is a leading network of over 150 national and international consulting firms in Spain, providing fiscal, labor, accounting, legal services, and support for franchisees | Business Consulting and Services | 🇪🇸 Madrid | 448 |  |
| 14 | [Adlanter](https://www.tamtam.ai/c/adlanter) (adlanter.com)<br>The company offers comprehensive business support through expert divisions in tax, labor relations, accounting, international mobility, recruitment, and consulting services | Business Consulting and Services | 🇪🇸 Madrid | 431 | 1989 |
| 15 | [Crowe Spain](https://www.tamtam.ai/c/crowe-spain) (crowe.es)<br>Global professional services provider with presence in over 150 countries and 40,000 professionals Offers tailored solutions combining international expertise with local knowledge | Professional Services | 🇪🇸 Barcelona | 405 | 1920 |
| 16 | [Estudio Contable](https://www.tamtam.ai/c/estudio-contable) (estudio-contable.es)<br>A consultancy in Estepona providing comprehensive tax, accounting, labor, and financial advice for businesses, as well as personalized services for entrepreneurs and individuals | Business Consulting and Services | 🇪🇸 Estepona | 361 |  |
| 17 | [Auxadi](https://www.tamtam.ai/c/auxadi) (auxadi.com)<br>Provides accounting, tax, payroll, transfer pricing, and corporate legal services globally, helping clients with international expansion through a multi-country IT platform and methodology. | Financial Services | 🇪🇸 Madrid | 320 | 1979 |
| 18 | [Kreston Iberaudit](https://www.tamtam.ai/c/kreston-iberaudit) (kreston.es)<br>A professional firm specializing in audit and consultancy services for medium to large companies, expanding geographically with a global network | Accounting | 🇪🇸 Madrid | 284 |  |
| 19 | [TAX Economistas y Abogados](https://www.tamtam.ai/c/tax-economistas-y-abogados) (tax.es)<br>A group of 50 professionals with over 35 years of experience providing personalized tax, legal, accounting, auditing, and insurance services to businesses of all sizes | Business Consulting and Services | 🇪🇸 Figueres | 278 | 1988 |
| 20 | [SORECO](https://www.tamtam.ai/c/soreco) (soreco-group.com)<br>Specialized accounting and legal consulting for French and foreign companies investing and operating in Spain, Portugal, and Italy. | Accounting | 🇪🇸 Madrid | 126 | 2002 |
| 21 | [ANADE](https://www.tamtam.ai/c/anade) (anadeconsultoria.com)<br>ANADE is a specialized firm in labor, tax, accounting, and commercial advisory services, offering comprehensive multidisciplinary solutions to clients' business needs | Financial Services | 🇪🇸 Pamplona/iruña | 103 | 1972 |
| 22 | [ILV SILVER \| Deal & Business Advisory](https://www.tamtam.ai/c/ilv-silver-deal-and-business-advisory) (ilvsilver.com)<br>Professional services firm in Spain offering audit, accounting, tax, legal services Specializes in transaction, due diligence services for business acquisitions Focus on partner-led business advisory | Financial Services | 🇪🇸 Barcelona | 80 | 2004 |
| 23 | [ROSCLAR](https://www.tamtam.ai/c/rosclar) (rosclar.com)<br>Professional consultancy offering expertise in payroll, accounting, tax, trade law, and other services (eg audits, data protection) to help businesses manage efficiently | Human Resources Services | 🇪🇸 Barcelona | 69 | 2005 |
| 24 | [Auditores y Consultores del Sur](https://www.tamtam.ai/c/auditores-y-consultores-del-sur) (aycsur.com)<br>Founded in 1990, this company in Seville offers high-quality auditing and financial consulting services, tailored to each client's specific needs Stay connected for updates | Financial Services | 🇪🇸 Seville | 43 | 1990 |
| 25 | [GNL Russell Bedford Auditors](https://www.tamtam.ai/c/gnl-russell-bedford-auditors) (gnlrussellbedford.es)<br>GNL is a multidisciplinary firm providing accounting, tax, and mercantile services to SMEs and professionals, emphasizing personalized, rigorous, and value-driven partnership for business success | Financial Services | 🇪🇸 Barcelona | 35 | 1983 |
| 26 | [Daem](https://www.tamtam.ai/c/daem-barcelona) (daem.es)<br>A multidisciplinary company with over 40 years of experience offering business advisory and administrative outsourcing services throughout the entire business lifecycle | Financial Services | 🇪🇸 Barcelona | 33 |  |
| 27 | [IF Assessors](https://www.tamtam.ai/c/if-assessors) (if-assessors.es)<br>Spanish business consultancy providing tax, accounting, labor, and legal services for companies and professionals with experience in the sector since 1994. | Legal Services | 🇪🇸 Sabadell | 10 | 1994 |
| 28 | [Protelum Consultoría](https://www.tamtam.ai/c/protelum-consultoria) (protelum.es)<br>A consultancy firm specializing in providing premium and exclusive global services to businesses and self-employed individuals with a personalized approach | Business Consulting and Services | 🇪🇸 Las Palmas de Gran Canaria | 9 | 2022 |
| 29 | [BXC Advisors](https://www.tamtam.ai/c/bxc-advisors) (bxcadvisors.com)<br>A global consulting firm specializing in immigration, tax, accounting, and labor advice, addressing administrative migration issues effectively and rapidly | International Affairs | 🇪🇸 Barcelona | 7 | 2023 |
| 30 | [Integral Asesores](https://www.tamtam.ai/c/integral-asesores) (integralasesores.es)<br>Specialized firm providing comprehensive advisory services to private sector companies in tax, accounting, legal areas for optimal results with professional support | Accounting | 🇪🇸 Córdoba | 6 | 2012 |
| 31 | [GESAD SOCIEDAD DE GESTION SLP](https://www.tamtam.ai/c/gesad-sociedad-de-gestion-slp) (gesadsl.com)<br>Administrative management agency specializing in companies, taxes, and inheritance matters, well-established and reputable in the sector | Business Consulting and Services | 🇪🇸 Madrid | 4 |  |

## 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 11, 2026.

## More company lists in Spain

- [The largest companies in Spain](https://www.tamtam.ai/l/largest-companies-spain) (10,893)
- [Multinational companies in Spain](https://www.tamtam.ai/l/multinational-companies-spain) (2,706)
- [Retail chains in Spain](https://www.tamtam.ai/l/retail-chains-spain) (1,251)
- [Manufacturers in Spain](https://www.tamtam.ai/l/manufacturers-spain) (1,080)
- [Companies with in-house R&D in Spain](https://www.tamtam.ai/l/r-and-d-companies-spain) (1,067)
- [Wellness and Fitness Services companies in Spain](https://www.tamtam.ai/l/wellness-and-fitness-services-companies-spain) (879)
- [Healthcare providers in Spain](https://www.tamtam.ai/l/healthcare-providers-spain) (711)
- [Companies with a mobile app in Spain](https://www.tamtam.ai/l/companies-with-mobile-app-spain) (561)
- [Hotel and hospitality groups in Spain](https://www.tamtam.ai/l/hospitality-groups-spain) (539)
- [Family-owned companies in Spain](https://www.tamtam.ai/l/family-owned-companies-spain) (531)
- [Software Development companies in Spain](https://www.tamtam.ai/l/software-development-companies-spain) (530)
- [Professional services firms in Spain](https://www.tamtam.ai/l/professional-services-firms-spain) (522)
- [Critical infrastructure operators in Spain](https://www.tamtam.ai/l/critical-infrastructure-operators-spain) (517)
- [IT services companies in Spain](https://www.tamtam.ai/l/it-services-companies-spain) (484)
- [Financial services firms in Spain](https://www.tamtam.ai/l/financial-services-firms-spain) (482)
- [Food and Beverage Services companies in Spain](https://www.tamtam.ai/l/food-and-beverage-services-companies-spain) (462)
- [SaaS companies in Spain](https://www.tamtam.ai/l/saas-companies-spain) (445)
- [Retail Apparel and Fashion companies in Spain](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-spain) (439)
- [IT Services and IT Consulting companies in Spain](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-spain) (437)
- [Hospitality companies in Spain](https://www.tamtam.ai/l/hospitality-companies-spain) (435)
- [Consulting firms in Spain](https://www.tamtam.ai/l/consulting-firms-spain) (420)
- [E-commerce companies in Spain](https://www.tamtam.ai/l/ecommerce-companies-spain) (416)
- [Food and beverage companies in Spain](https://www.tamtam.ai/l/food-and-beverage-companies-spain) (416)
- [Hardware manufacturers in Spain](https://www.tamtam.ai/l/hardware-companies-spain) (415)

---

Source: https://www.tamtam.ai/l/accounting-firms-spain