
LEIALTA is a comprehensive business and social consulting firm, with offices in Madrid and Bilbao, that provides specialised advice in legal, corporate, accounting, tax, labour and social consulting matters.
After more than ten years supporting Spanish and international companies, at LEIALTA we continue to move forward with the same purpose as always: to provide professional business advice at the level of large consulting firms, while maintaining the close approach of traditional advisory firms. All of this is delivered through a personalised approach, adapted to the reality of each organisation.
With the aim of sharing LEIALTA’s commitment to the work we carry out every day, we have created a video summarising the main keys to our model, who we are, how we work and what makes us different.
A consulting firm that understands the company as a whole
LEIALTA was founded in 2015 with a clear objective: to combine the technical rigour, specialisation and methodology of large firms with direct knowledge of each client, to work in a close, agile and personalised way.
Since then, we have supported more than 500 companies, from SMEs and family businesses to corporate groups and international companies with activity in Spain.
Our way of working is not limited to managing or resolving specific procedures. We start by understanding how each organisation works, what its structure is and what needs it has. For this reason, we do not offer standardised solutions. We build answers adapted to each company’s stage, objectives and evolution.
Comprehensive advice throughout the company’s life cycle
Based on our experience, we know first-hand that the needs of an organisation evolve as it grows, incorporates new activity or modifies its corporate structure.
For this reason, at LEIALTA we offer comprehensive services capable of supporting companies both in recurring accounting, tax or labour management and in transformation processes or strategic decisions. These require knowledge, management capacity and execution in legal, corporate and consulting matters.
- From the legal and corporate area, we intervene in processes such as company incorporation, the entry or exit of shareholders and contract negotiation. In addition, we have extensive experience in business restructuring and corporate optimisation: from designing a holding structure to coordinating mergers and spin-offs to prepare the company for succession, growth or sale processes.
- From the accounting and tax area, we support companies in the management of their accounting, compliance with their tax obligations in Spain, financial reporting and tax planning.
- From the labour area, we manage payroll, contracts, registrations, terminations and obligations with Spanish Social Security. In addition, we advise on matters such as time recording, remuneration policies, remote work, equality and labour compliance.
We act as a comprehensive advisor for foreign companies in Spain
The international dimension is part of LEIALTA’s regular activity. We have worked with companies from more than 100 countries, helping them establish themselves and develop their activity in Spain.
To do this, we act as legal and tax representative, an essential figure that allows non-residents to respond before the Spanish authorities. We also create companies and manage all the procedures needed to start operating in Spain, such as obtaining a VAT number.
In addition, we become the local partner of reference, helping manage daily operations through comprehensive advice capable of covering legal, corporate, accounting, tax, labour and consulting needs.
We also belong to IR Global, an international network of legal, accounting and financial firms that provides access to specialised professionals in more than 165 jurisdictions. This collaboration strengthens our ability to participate in international projects and coordinate transactions that require local knowledge in different markets.

LEIALTA and our commitment to labour inclusion
Alongside business advisory services, one of LEIALTA’s main areas of specialisation is social consulting.
We support the creation, transformation, development and professionalisation of Special Employment Centres and Social Initiative Special Employment Centres in Spain. In addition, we can say that with LEIALTA success is guaranteed, as 100% of the projects we submit obtain accreditation and are classified as Special Employment Centres, whether traditional or Social Initiative centres.
Throughout our career, we have also participated in the launch of around 40 of these centres. As a result, we estimate that we have contributed to promoting more than 3,000 jobs for people with disabilities.
Our approach combines the economic viability of the project with regulatory compliance, professional management and social impact.
A methodology based on quality and multidisciplinary team coordination
LEIALTA is made up of a multidisciplinary team of around 30 professionals, specialised in different disciplines but coordinated under a quality management system certified under ISO 9001:2015.
This certification is integrated into our methodology through defined procedures, internal reviews, coordination between specialists and a permanent commitment to continuous improvement.
For this reason, at LEIALTA, each project begins with an analysis of the company’s reality and continues with the definition of an adapted strategy, the coordination of the necessary professionals and support during implementation.
After more than a decade, LEIALTA’s essence remains the same: combining technical rigour, speed, proximity and strategic vision to help companies move forward with a clearer structure, greater control and better tools for decision-making.