Top on Header

Aider Polska (formerly MDDP Outsourcing) Accounting, HR and payroll.

One place. Full business support.

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.

Get to know us
magdalena michniewicz

Services - see how we can support your business

What sets us apart?

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.

  • Our approach

  • Our values

Aider Poland - recommended partner in outsourcing accounting, human resources and payroll

"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)


Poland2