Professionalism & Passion
In the longevity
of family businesses

Comprehensive business solutions covering the full spectrum of ongoing legal and tax matters.

How we support family businesses
  • 01

    Family in Business

    Home

    It's more than just a business—it's about values ​​and assets built over generations.
We support business owners in key decisions, from succession planning and family foundations to asset protection and preparing the business for growth or sale — —so every family can confidently plan for their future.

  • 02

    Legal Structure

    Home

    A solid legal structure is the foundation of the safe development of a family business — it affects taxation, liability, and scalability. We help select and implement solutions that organise corporate structures, minimise risks, and ensure long-term stability.

  • 03

    Optimal Taxation

    Home

    Tax efficiency is not only about savings — it is primarily about security and predictability for family businesses. We help our clients make informed tax decisions, mitigate risks, and take advantage of available preferences so that taxes support business growth, not hinder it.

We are a Trusted Advisor
to Family Businesses Specialising
in Legal and Tax Advice

  • No. 1
    in supporting the
    longevity
of family
    businesses
  • 4,000+
    cases
    successfully
    handled
for
    our clients
  • ~580
    companies actively
    using
Mariański Group
    services
  • 100+
    Polish and international

    family foundations
    successfully established
Get to know us better
We are a Trusted Advisor 
to Family Businesses Specialising
in Legal and Tax Advice
We are a partner who, thanks to many years of experience in advising medium-sized and large family businesses, provides your company with real security — we anticipate risks, identify consequences, and design solutions before problems arise.

Prof. Adam Mariański, PhD, DSc

Founder of Mariański Group