English Version


Grupa Doradcza Sienna Sp z o.o. provides legal services in public contract and economic administration.

We support clients in such areas as:

  • public procurement
  • state aid
  • conclusion and execution of business contracts
  • organization of purchasing processes and audits
  • discipline of public finance
  • spending EU funds
  • public-private partnerships


We provide services to public institutions and private companies operating in each sector of the economy.

We have been cooperating so far with entities from governmental and self-governmental administration, state-owned mining companies, power industry, rail transport, companies belonging to territorial self-government units engaged in waste managemant, water and sewage services,  cultural institutions, research institutes, health care institutions, and many others. We have also provided services for construction, service and commercial companies.


Our business is characterized by a complex approach to every order. We thoroughly examine each case  and propose a solution that best reaches the customer's goal. Thorough legal preparation and knowledge of many areas of economic life give us a basis for undertaking new interesting challenges. The quality of the service proves that our customers often come back to us when realizing successive projects.

The best results are achieved by a team of qualified and experienced specialists