Business Gazelle
Aider Polska (MDDP Outsourcing) is among the winners of the prestigious ranking Business Gazelles 2025. We are one of the fastest growing companies in Poland.
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Aider Polska (MDDP Outsourcing) is among the winners of the prestigious ranking Business Gazelles 2025. We are one of the fastest growing companies in Poland.
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Learn about our history and the path we took to get where we are today - as part of the AIDER group.
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We have been awarded the prestigious Forbes Diamond for the fourth consecutive year.
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We are pleased to announce that Aider Polska (MDDP Outsourcing) has won the prestigious international Global Payroll Awards 2025. bravo to the team!
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The National e-Invoicing System is already our daily business. We help make KSeF an integral and friendly part of your accounting ecosystem.
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We prepare financial statements for companies and capital groups - in accordance with the Accounting Act and IFRS/IAS, comprehensively and on time.
Get to know our full offer.
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We are one of the largest companies in Poland offering accounting and payroll outsourcing.
Aider Polska (formerly MDDP Outsourcing) team
Our team of nearly 350 specialists, based in our Warsaw and Katowice offices, combines experience and expertise with a fresh, up-to-date approach to today's business realities.
Accounting Outsourcing
HR and payroll outsourcing
Reports and reports
Solutions and systems
Tax services
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Accounting Outsourcing
HR and payroll outsourcing
Financial reports
Solutions and systems
Tax and transaction consulting
Contact
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Our values are not slogans on the wall. They are the way we work with and for people. With them, we help grow our clients' businesses - and at the same time build strong teams on their side and ours.
Nearly 350 specialists with confirmed qualifications (ACCA, chartered accountants, tax advisors), who are perfectly familiar with teamwork
As part of the outsourcing, we offer a range of accounting and automation systems, access to which can be enabled at the appropriate stage of the organization's development.
We work in a process-oriented way, constantly analyzing and arranging the work of the teams for maximum efficiency, according to the scale of the activities undertaken.
We believe that behind every success are people, and good relationships build the foundation for great results.
We focus on honesty, trust and mutual responsibility - both within the team and with clients.
We work together to create solutions that cannot be duplicated.
People first. Always relationships. That's why we achieve more.
We simplify the complicated - in processes, conversations and daily work.
We combine technology with innovative thinking, turning the barriers we encounter into new opportunities.
We focus on solutions that allow us to operate more efficiently, more clearly and more effectively.
Simple. Transparent. Effectively.
It is courage in decision-making and agility that allows us to be effective in a changing environment.
We anticipate trends and customer needs, offering solutions that anticipate change.
In relationships, we focus on attentiveness, asking questions and open communication, because speed only makes sense when it comes from understanding.
To see more. Decide more quickly. Act smarter.
"We offer comprehensive support to companies at every stage of their development - from day-to-day operational support to strategic projects. We provide outsourcing of accounting, HR and payroll, tax services and financial controlling, as well as preparation of financial statements, e-reports and management reports. We support companies in optimizing financial processes, reporting and organizing cooperation with banks, including in the area of payments and bank accounts.
We also help in situations that require specialized knowledge and experience - we offer support during inspections by the Social Security Administration (ZUS Shield), carry out due diligence projects for investors, and implement solutions and systems to streamline the work of finance, accounting and payroll departments. We combine expert knowledge with technology to increase the efficiency, security and transparency of company processes.
Our offer is complemented by corporate services, including the establishment of companies and the purchase of shelf companies in Poland in cooperation with a reputable law firm. In this way, we provide clients not only with current financial and accounting services, but also full support in launching and developing their business - in a single, consistent and secure model of cooperation. In all areas, our modus operandi is based on the fact that we want to be a partner that realistically influences the development of business, and not just performs services."
Michal Stanioszczyk
Partner, Aider Polska (MDDP Outsourcing)