Portilla Arnaiz Abogados

What Portilla Arnaiz Abogados does

Portilla Arnaiz Abogados is a multidisciplinary Spanish law firm (Sociedad Limitada Profesional, S.L.P.) founded in 2002 and headquartered in Burgos, Castilla y León. The firm provides comprehensive legal advisory services across 17 practice areas, including commercial and corporate law, mergers and acquisitions, insolvency and restructuring, banking and finance, real estate, administrative, civil, family and succession, criminal, labor, tax, energy, immigration, insurance, industrial and intellectual property, and communications and new technologies law. It positions itself as a pioneer in telecommunications and new technologies law within the Castilla y León region, having advised major telecom operators since inception.

The firm serves a horizontal mix of individual clients (particulares y profesionales), small and medium enterprises (pymes), and large companies (grandes empresas). It operates from three physical offices in Burgos (headquarters), Briviesca, and Palencia, with service delivery conducted via in-person consultations, phone (+34 947 205 638), and email ([email protected]). The team comprises seven professionals: founder and managing partner Roberto J. Portilla Arnaiz, four senior associates, one junior associate, and one administrative and accounting professional. Notable practice leaders include Roberto J. Portilla Arnaiz (insolvency/corporate), Judith Ibáñez Alonso (commercial), Juan Antonio Ramos Hernández (administrative), Iván Ruiz Gallardo (litigation/criminal and labor), and Héctor Díez Díez (banking/finance/IP).

The firm's business model is fee-for-service professional legal advisory, with no publicly disclosed pricing. It maintains an active online presence through its website and Instagram, and runs a pro bono 'Proyecto Justicia' (Justice Project) in collaboration with NGOs, providing free legal representation in immigration and regularization matters. The firm is privately held, with no parent company, no external investment, and no M&A activity disclosed. Legal name: Portilla Arnaiz Asesores Jurídicos, S.L.P., registered in Burgos, Spain (CIF: B-09475864).

Name

Portilla Arnaiz Abogados

Legal name

Portilla Arnaiz Asesores Jurídicos, S.L.P.

Website

https://portillaarnaiz.es

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

1–10 employees

Short description

Portilla Arnaiz Abogados is a multidisciplinary Spanish law firm founded in 2002, operating from Burgos, Briviesca, and Palencia, serving individuals, SMEs, and large companies across 17 legal practice areas.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (541110)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Corporate & Commercial Law (BPAHAAAA)

akta.pro secondary industries

Bankruptcy, Restructuring & Insolvency Law (BPAHAAAH), Employment & Labor Law (BPAHAAAD), Immigration Law (BPAHAAAL), Regulatory & Compliance Law (BPAHAAAC)

Keywords

• Commercial law services
• Mergers and acquisitions law
• Banking and finance law
• Real estate legal services
• Corporate legal advisory

Headquarters

HQ city

Burgos

HQ country

Spain

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Legal Advisory Services: Professional legal services billed on a fee-for-service basis, providing comprehensive legal counsel across multiple practice areas including commercial law, banking law, administrative law, civil law, family law, labor law, criminal law, tax law, and more.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Portilla Arnaiz Abogados is a multidisciplinary Spanish law firm that provides comprehensive legal advisory and representation services across 17 practice areas, including commercial and corporate law, mergers and acquisitions, insolvency and restructuring, banking and finance, real estate, administrative, civil, family, criminal, labor, tax, energy, immigration, insurance, intellectual property, and telecommunications/technology law. The firm delivers personalized legal counsel to individuals, self-employed professionals, small and medium-sized enterprises (PYMES), and large corporations through its offices in Burgos, Briviesca, and Palencia in the Castilla y León region of Spain.

Product overview

Portilla Arnaiz Abogados is a multidisciplinary Spanish law firm founded in Burgos in 2002, offering comprehensive legal advisory services to individuals, professionals, and companies. The firm operates as a unified legal services practice organized across 17 distinct service areas covering corporate/commercial law, insolvency and restructuring, banking and finance, real estate, administrative law, procedural matters, civil law, family and succession law, intellectual property, criminal law, labor law, tax law, energy law, immigration law, insurance law, and communications/technology law. The firm is led by managing partner Roberto J. Portilla Arnaiz and employs six additional professionals across specialized practice areas, with offices in Burgos (headquarters), Briviesca, and Palencia.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial and Corporate Law (Derecho mercantil y societario) Legal advisory in commercial and corporate law, including company formation, domestic and international commercial contracts, investment and financing agreements, franchise and distribution contracts, corporate restructurings, and shareholder agreements. Targeted at companies and entrepreneurs requiring corporate legal support.
• Mergers and Acquisitions (Fusiones y adquisiciones) Advisory and execution of mergers and acquisitions across all sectors, including legal due diligence, acquisition processes, asset transactions, and structural modifications. Targeted at acquiring and target companies, shareholders, and investors.
• Insolvency and Restructuring Law (Derecho concursal y reestructuraciones) Advisory for debtors and creditors in insolvency proceedings, including representation in bankruptcy proceedings, debt restructuring, refinancing negotiations, and protection of creditor interests. Targeted at distressed companies and creditors.
• Banking and Finance Law (Derecho bancario y financiero) Advisory for financial service providers, banks, and savings banks, including anti-money laundering compliance, securities issuance, regulatory compliance for listed entities, and defense before supervisory bodies. Targeted at financial institutions and listed companies.
• Real Estate and Urban Planning Law (Derecho inmobiliario y urbanismo) Comprehensive advisory in real estate operations and urban development, including purchase and lease negotiations, financing contracts, construction agreements, legal due diligence, and administrative licensing. Targeted at property buyers, sellers, developers, and investors.
• Administrative Law (Derecho administrativo) Legal assistance in administrative procedures and contentious-administrative jurisdiction, including sanctioning proceedings, liability claims against public administrations, and public procurement matters. Targeted at individuals and businesses involved in disputes with public administrations.
• Procedural Law and Arbitration (Derecho procesal y arbitraje) Legal representation in civil, criminal, labor, and administrative jurisdictions, as well as advisory and defense in equity or law arbitration proceedings under various Spanish arbitration court regulations. Targeted at clients involved in litigation or arbitration.
• Civil Law (Derecho civil) Comprehensive civil law services including contract drafting, debt claims, civil liability indemnifications, and eviction proceedings. Targeted at individuals and businesses needing civil law support.
• Family and Succession Law (Derecho familia y sucesiones) Family and succession law services including divorces, dissolution of matrimonial property regimes, custody arrangements, compensatory pensions, will drafting, inheritance proceedings, and tutor appointments. Targeted at individuals and families.
• Industrial and Intellectual Property Law (Derecho de propiedad industrial e intelectual) Industrial and intellectual property advisory including trademark and patent registration with Spanish, European, and international offices; domain name disputes; and civil actions for nullity, lapse, and infringement. Targeted at brand owners, inventors, and creative businesses.
• Criminal and Penitentiary Law (Derecho penal y penitenciario) Criminal defense and legal representation in all types of criminal proceedings as defense counsel, civil liability defendant, private prosecutor, or civil plaintiff, including labor rights violations, family abuse, fraud, and tax crimes. Targeted at individuals and corporate defendants.
• Labor Law (Derecho laboral) Labor law advisory and representation services for employers and employees in labor disputes and proceedings. Targeted at companies and workers in employment relationships.
• Tax Law (Derecho tributario y fiscal) Tax law advisory and defense for taxpayers in all types of procedures before the Spanish Tax Agency (AEAT), including management, collection, sanctioning, and inspection proceedings, as well as tax crime matters. Targeted at individuals and businesses facing tax matters.
• Energy Law (Derecho de las energías) Energy law advisory including regulatory counsel for renewable energy projects, intervention before competition authorities, project development advisory, and consumer representation in disputes with distributors and retailers. Targeted at energy sector operators and consumers.
• Immigration and Migration Law (Derecho de extranjería y migración) Immigration and migration law services including residence and work permit applications, asylum proceedings, family reunification, EU citizen permits, and expulsion defense, including the 'Proyecto Justicia' pro bono program. Targeted at foreign nationals and immigrants.
• Insurance Law (Derecho de seguros) Insurance law services including policy interpretation, bodily injury valuation, claim defense and recovery for life, accident, fire, theft and other insurance types, and surety guarantee claims. Targeted at insured parties, insurers, and claimants.
• Communications and New Technologies Law (Derecho comunicaciones y nuevas tecnologías) Telecommunications and technology law advisory for telecommunications operators and information society service providers, including CNMC notifications, licensing, e-commerce, data protection compliance under GDPR, and technology contract disputes. Targeted at telecom operators, ISPs, and tech businesses.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Non-governmental Organizations (NGOs)minorStrategic or Co-development PartnerCollaboration with NGOs under the 'Proyecto Justicia' (Justice Project) initiative, which provides legal advice and representation to disadvantaged individuals lacking economic resources. The firm lawyers advise, represent, and legally defend individuals through framework collaboration agreements with non-profit NGOs, particularly in immigration matters and regularización.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Uría Menéndez: Major Spanish full-service law firm with strong corporate, M&A, banking, and TMT practices. It serves the same SME and large-company segments in Spain but operates from Madrid, Barcelona, and international offices with significantly broader capabilities.
• Pérez-Llorca: Spanish full-service law firm focusing on corporate, M&A, banking, and litigation matters. Overlaps with Portilla Arnaiz's commercial, M&A, and banking practices from a Madrid-centric base serving larger enterprise clients.
• Garrigues: Spain's largest full-service law firm headquartered in Madrid, with offices across Spain and globally. It competes for the same corporate, banking, insolvency, and administrative-law matters that Portilla Arnaiz handles, but at a national and international scale with vastly more resources and headcount.
• Cuatrecasas: Leading Iberian law firm with deep corporate, banking, insolvency, and IP practices. It competes in the same service areas as Portilla Arnaiz but at a multi-jurisdictional level with much larger teams.
• Gómez-Acebo & Pombo: Spanish full-service law firm with strong M&A, corporate, banking, and real estate practices. Competes for the same commercial-transaction and finance mandates as Portilla Arnaiz, primarily serving larger corporates from Madrid and Barcelona.
• Deloitte Legal (Spain): Big Four legal arm in Spain delivering corporate, M&A, tax, and regulatory services. Overlaps significantly with Portilla Arnaiz's corporate, M&A, tax, and restructuring practices for medium-sized enterprise clients.
• KPMG Abogados (Spain): Big Four legal practice in Spain providing corporate, tax, labor, and regulatory advisory. Competes for the same SME and corporate compliance engagements as Portilla Arnaiz, especially in tax, labor, and corporate-governance matters.

Direct peers

• ECIJA: Spanish multidisciplinary law firm especially well-known for technology, telecommunications, data protection, and IP law - directly overlapping with Portilla Arnaiz's stated telecom/TMT specialization. Comparable as a multi-office Spanish firm pursuing TMT-focused mandates.
• Sagardoy Abogados: Spanish labor-law specialist firm with national presence. While narrower in scope than Portilla Arnaiz, it is directly comparable in the employment and labor-law practice area that Portilla Arnaiz explicitly offers.
• Andersen Tax & Legal (Spain): Mid-sized Spanish multidisciplinary law and tax firm operating nationally with a multi-office model similar to Portilla Arnaiz's horizontal coverage across practice areas. Closely comparable as a full-service Spanish firm with corporate, tax, and commercial focus.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/portillaarnaizabogados
• Xx.com/PortillaArnaiz
• LinkedInlinkedin.com/company/portilla-arnaiz-abogados-slp

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Portilla Arnaiz Abogados