We help you start, grow & expand your business
We support companies and entrepreneurs at every stage of their business with tax planning, accounting, and consulting services. From Madrid to the world.
WHAT WE DO
Our services
Our team of expert advisors with 20+ years of experience delivers the best solutions for every stage of your business, from creation to expansion:
Tax advice services
With a multidisciplinary approach, we help you plan & optimize your business tax strategy, adapting it to current and future financial scenarios.
- Tax consulting & advice
- International taxation
- Tax audit support
Tax management and accounting services
We provide personalized solutions to manage your business’ financial transactions and activities, maximizing benefits and minimizing tax liabilities.
- Bookkeeping
- Managing tax compliance
- Financial reporting
Human resources consulting
We help you design an effective organizational structure, advise on managing your workforce, and ensure HR strategies align with your overall business goals.
- Optimize hiring & payroll processes
- Labor advisory services
- Audit support
Business consulting
We provide advice and guidance to transform processes, navigate change, identify opportunities, and enhance business operations over the short and long term.
- Supply chain management consulting
- Cost management consulting
- Knowledge management consulting
Business purchase and sale consulting
Our expert advice and support help you minimize risks and maximize value for your business during the complex process of buying or selling companies.
- Business valuation & support services
- Deal structure & negotiation
- Documentation & contracts
Business restructuring
We analyze, plan, and implement a business or department restructuring process to improve competitiveness, reposition your company, or address financial challenges.
- Organizational restructuring
- Financial restructuring
- Operational restructuring
“Whether you have a financial department — and you need highly skilled services to expand globally — or you are a small business that needs accounting, HR, and tax support, we can design a unique solution for you!”
Nuria Gomez Bermejo
Founder & CFO, Sigma Corporate Solutions
Who We Are
Our story
Building a global business requires persistence, adaptability to navigate change, and having the right experts by your side.
Nuria Gomez Bermejo
Founder & CFO, Sigma Corporate Solutions
WHY CHOOSE US
About the Sigma Group
Sigma Group is the umbrella of Sigma Corporate Solutions, Sigma AI, and Sigma Cognition. While each of these companies has its unique focus, they all have a shared purpose: enabling companies to scale and bring competitive, cutting-edge projects to life. Meet our sister brands:
Human-centric
Humans are at the heart of everything we do — from the professionals within our team to the people behind the companies we contribute to build and grow.
Our business goes beyond financial statements & tax returns: it’s about people.
Expert advisors
With 20+ years of experience in the tax, accounting, and consulting fields, we can tackle every business challenge.
Our international approach and knowledge of the business creation process are key to driving sustainable growth.
Business ethics
We are strongly committed to honesty, integrity, and transparency.
Ethical business practices are reflected in our day-to-day internal processes and decision-making, and shared by the clients we choose to work with.
SIGMA CORPORATE SOLUTIONS
Our team
Nuria Gomez Bermejo
Founder & CFO
Mayte Gomez
Head of Finance
Elena Munoz Sanz
Human Resources Director
Javier Sanz de Galdeano
Financial Director
LEARN MORE ABOUT US
About the Sigma group
Sigma Group is the umbrella of Sigma Corporate Solutions, Sigma AI, and Sigma Cognition. While each of these companies has its unique focus, they all have a shared purpose: enabling companies to scale and bring competitive, cutting-edge projects to life. Meet our sister brands:
Sigma AI
Data annotation services for Generative AI & LLMs
Sigma AI is a global training data collection, preparation, & annotation services company focused on providing the highest quality training data at scale with a human touch.
Its strong team of annotators can solve even the most complex annotation challenges.
Sigma Cognition
Custom AI solutions with a data-centric approach
Sigma Cognition supports companies throughout the entire
process of designing, building, and implementing AI & ML solutions.
This involves evaluating new AI initiatives, building proofs-of-concept, and designing AI models.