Due diligence

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Completed projects
Team
Awards and rankings

Our attorneys have exceptional knowledge and extensive experience in conducting complex legal analyses of enterprises. In particular:

we have extensive experience, and we are able to comprehensively organize and conduct due diligence processes for both sellers and buyers,
we have organised and conducted numerous due diligence processes as part of M&A transactions and while preparing prospectuses,
we emphasise the practical aspect of our opinions, presenting the results of the due diligence process, the identified risks, and the recommendations intended to enable or facilitate the implementation of a given project to eliminate or reduce legal risks in a clear and transparent manner.

We have conducted a total of several hundred comprehensive due diligence processes concerning the following industries, among others:

FMCG,
electronic payments,
finance, including lending and leasing companies,
e-commerce,
medical services,
private security,
cash management,
manufacturing, including the production of fittings, packaging, glass products, and carpets,
transport and logistics,
property development,
insurance,
asset management and mutual funds.

Completed projects

Custodia Capital

Advising Custodia Capital and Custodia Capital ZZASI sp. z o.o. FO Opportunities ASI S.K.A. on the acquisition of a majority stake in Profi S.A.
Lindström Oy

Advising Lindström Oy on the acquisition of 100% of the shares in HTS Rental sp. z o.o., a subsidiary of Hollywood S.A.
viridiusLAB AG

Advising the Austrian company viridiusLAB AG, specialized in the laboratory testing industry with operations in various CEE countries and Italy, on an acquisition of the 100% of shares in Ośrodek Badań Podstawowych, Projektów i Wdrożeń Ochrony Środowiska i Biotechnologii „OIKOS” sp. z o.o.
Enterprise Investors

Advising Enterprise Investors on the acquisition of a majority stake in Salus Centrum Medyczne sp. z o.o.
Hartenberg Capital

Advising Hartenberg Capital on the acquisition of a controlling stake in the 4Kraft sp. z o.o. and its subsidiaries, i.e. 4Kraft LLC and Suzhou Kinderkraft Trading Co., Ltd.
Enterprise Investors

Advising the Enterprise Investors fund on the acquisition of 100% of the shares in the Private Healthcare Facility “Śródmieście – Biały Kamień” sp. z o.o.
Deutsche Private Equity (DPE)

Advising Deutsche Private Equity and Swiss law firm Bär & Karrer in the Polish aspects of the international acquisition of a majority stake in IMPAG Group.
Orkla Food Ingredients

Advising Orkla Food Ingredients and its group entities on the acquisition of the plant owned by Eurohansa sp. z o.o.
LangMedia sp. z o.o.

Advising LangMedia sp. z o.o. on the acquisition of 100% of the shares in International Language Institute sp. z o.o.
LangMedia sp. z o.o.

Advising LangMedia sp. z o.o. on the acquisition of 70% of shares in ESL Brains sp. z o.o.

Team

They appreciated us

Chambers Global
Rzeczpospolita
The Lawyer European Awards
PSIK
Chambers Europe
IFLR1000
Mergermarket
Legal 500
CEE Mergers and Acquisitions

In the Chambers Global 2025 ranking, MFW Fiałek law firm has been distinguished for the first time in the Corporate & M&A: Mid Market (Poland) category:

Mirosław Fiałek (Managing Partner) – Band 1
Rafał Siemieniec (Associate Partner) – Band 4
The Firm – Band 3

“MFW Fiałek has been recognized for its strong market presence and expertise. The team advises on a full range of corporate matters, including acquisitions, joint ventures, and corporate structuring. The team has experience advising international investors, including private equity funds. Its clients include domestic conglomerates as well as international companies.”

Mirosław Fiałek, our managing partner, has been ranked at Band 1 in the Corporate & M&A: Mid Market category.

According to Chambers Global “Outstanding partner Mirosław Fiałek showcases extensive activity and market recognition at the mid-market level. Fiałek is proficient at handling acquisitions and restructuring procedures.”

Rafał Siemieniec, Associate Partner at MFW Fiałek, has been ranked at Band 4.

According to Chambers Global “Rafal Siemieniec joins the rankings this year on the back of strong market recommendation for his expert handling of domestic and cross-border mergers and acquisitions.”

In the Ranking of Law Firms of the daily newspaper Rzeczpospolita 2024, we were named as a leader in the categories (law firms with up to 50 lawyers): Commercial Law, Corporate Law, Mergers and Acquisitions; Private Equity and Real Estate.

Mirosław Fiałek was recognised as a leader in the categories Commercial Law, Corporate, M&A and Private Equity, and Rafał Siemieniec in the category: Real Estate.

MFW Fiałek also received a distinction (2nd place) in the category of Handling leading transactions on the Polish market in 2023.

In the Ranking of Law Firms of the daily newspaper Rzeczpospolita 2023, we were named as a leader in the categories (Division II – law firms with up to 50 lawyers): Commercial Law, Corporate Law, Mergers and Acquisitions; Private Equity and Real Estate.

Mirosław Fiałek was recognised as a leader in the categories Commercial Law, Corporate, M&A and Private Equity, and Rafał Siemieniec in the category: Real Estate.

MFW Fiałek has been shortlisted for the third time as a finalist in the European Specialist Law Firm of the Year category at The Lawyer European Awards 2024.

MFW Fialek has been shortlisted as a finalist for The Lawyer European Awards 2023 in the European Specialist Law Firm of The Year category.

MFW Fialek has been shortlisted as a finalist for The Lawyer European Awards 2022 in the European Specialist Law Firm of The Year category.

The Private Equity practice, led by Partner Miroslaw Fiałek, is a finalist in the “legal advisor – venture capital” category of the PSIK Awards competition, organised by the Polish Private Equity and Venture Capital Association. The law firm is among the four law firms in Poland that were nominated.

The Private Equity practice, led by Partner Miroslaw Fiałek, was a finalist in the “legal advisor – private equity” category of the PSIK Awards competition, organised by the Polish Private Equity and Venture Capital Association. The law firm was among the five law firms in Poland that were nominated.

In 2025 Chambers Europe ranked Mirosław Fiałek (Band 1), Rafał Siemieniec (Band 4) and M&A practice (Band 3) in Corporate/M&A: Mid-Market category.

Mirosław Fiałek has been recommended for the first time by Chambers Europe in the Private Equity category (Band 4).

According to Chambers Europe “MFW Fiałek has a keen focus on delivery successful transactions. The lawyers have solid market knowledge and experience of international and private equity work.”

“Outstanding partner Mirosław Fiałek showcases extensive activity and market recognition at the mid-market level. Fiałek is proficient at handling acquisitions and restructuring procedures.”

“Rafal Siemieniec joins the rankings this year on the back of strong market recommendation for his expert handling of domestic and cross-border mergers and acquisitions.”

In the Chambers Europe 2024 ranking, MFW Fiałek law firm has been distinguished in the Corporate & M&A: Mid Market category, advancing to Band 3 this year compared to our previous position:

“MFW Fiałek climbs the rankings as a result of strong market support. The team advises on a full range of corporate matters, including acquisitions, joint ventures and corporate structuring. The team has experience advising international investors, including private equity funds. Its clients include domestic conglomerates as well as international companies.”

Mirosław Fiałek, our managing partner, has once again been recognised as a recommended lawyer in the Corporate & M&A: Mid Market category. Mirosław Fiałek maintained his position in the ranking and was indicated at Band 2.

According to Chambers Europe “Mirosław Fiałek showcases extensive activity and market recognition at the mid-market level. Fiałek is proficient at handling acquisitions and restructuring procedures.”

In the Chambers Europe 2023 ranking, MFW Fiałek law firm has been distinguished in the Corporate & M&A: Mid Market category:

MFW Fiałek enters the rankings as a result of strong market support. The team advises on a full range of corporate matters, including acquisitions, joint ventures and corporate structuring. The team has experience advising international investors, including private equity funds. Its clients include domestic conglomerates as well as international companies.

Mirosław Fiałek, our managing partner, has once again been recognised as a recommended lawyer in the Corporate & M&A: Mid Market category. His position in this ranking has strengthened and this year he has been designated as Band 2.

According to Chambers Europe Mirosław Fiałek showcases extensive activity and market recognition at the mid-market level. Mirosław Fiałek is proficient at handling acquisitions and restructuring procedures.

In the Chambers Europe 2022 ranking, Partner Mirosław Fiałek was awarded in the Corporate/M&A: Mid-Market category in Band 3.

Mirosław Fiałek has joined the ranking ‘after showcasing extensive activity and market recognition at the mid-market level’. In addition, he has been recognized as an expert in handling acquisitions and restructuring.

In the Chambers Europe 2012 ranking, Partner Mirosław Fiałek was distinguished as “Up and Coming” in the area of Private Equity practice and was identified as “a lawyer valued both for his particular attention to detail and the ability to see the full picture of the situation” and as “one of the most promising lawyers in the field of private equity in Poland.”

In the IFLR1000 2024 ranking, MFW Fiałek were awarded in the field of M&A practice and in the Capital markets: Debt and Capital markets: Equity.

In the IFLR1000 2024 ranking, MFW Fiałek were awarded in the field of M&A practice, obtaining a high position in Tier 4.

Partner Mirosław Fiałek was distinguished as “Highly Regarded” in the field of M&A and Private Equity.

In the IFLR1000 2023 ranking, MFW Fiałek were awarded in the field of M&A practice and in the Capital markets: Debt and Capital markets: Equity.

In the IFLR1000 2023 ranking, MFW Fiałek were awarded in the field of M&A practice, obtaining a high position in Tier 4.