About us

Facts about GLC

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the year when we started
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over 100 experts work at GLC!
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value of our Public Liability insurance – means no-risk cooperation
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Over 1000 satisfied Clients!
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square meters office
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countries where our clients come from

Walk through the GLC office

Our office is located in the heart of Katowice, on the 14th floor of the ALTUS office building. Take a virtual walk around our office – see how we work!

Social activity

We implement the main values of GLC, among others through activities for the development of local entrepreneurship and cooperation with universities and industry organizations. We defend taxpayers’ rights and support charity campaigns.

GLC in the rankings

We occupy high positions in prestigious industry rankings organized by “Rzeczpospolita” and “Dziennik Gazeta Prawna”.

Learn More

History of GLC

1999
Urbaczka & Szymik Silesian Accounting Group
is established as a civil partnership specializing in bookkeeping. There are two employees.
2004
an Advisory office
 is established - Klimek Szymik Kordal and Partners Limited
2006
change of name to KSK Advisors Ltd
2010
LAW Leader - a multi-disciplinary partnership is created
the first in Poland which brings together the expertise of lawyers and tax advisors
2010
another company, TAX Leader, is created,
specialising exclusively in providing tax advice; at the same time we started creating the Leader Group, which in 2010 had over 40 employees.
2013
there is over 50 team members
 and we have started the process of re-branding to change the company image.
2014
Audit Leader Company is formed,
headed by a chartered accountant

Audit Leader is established, led by a statutory auditor

2015
we opened a branch office in Warsaw
2016
the Katowice headquarters is relocated
 from the premises at Warszawska Street to the ALTUS office building
2016
we obtained the ISO 27001 and 9001 certification
2016
Creation of GLC
the re-branding and business image change have been completed
2017
there are over 100 specialists in our team
2018
we provide services for over 1000 clients from Poland and abroad
we guarantee professional support in accounting, law, taxes and other business related areas.
2020
Advanced technologies
allow us to operate during the pandemic period and serve customers without change.
2021
More specialists in the team
further specialist lawyers are joining our team and we are extending the scope with new legal services aimed at individuals.
2022
The quality of our services is confirmed by ISO certification.
On 28 March 2022, we successfully passed another ISO 27001:2013 and ISO 9001:2015 recertification audit.
2023
We have a larger office
the area of our Katowice office is doubling, we are completely renovating and refreshing the office space