Mateusz Adrian MARCINIAK

Mateusz Adrian Marciniak is a Public Affairs Advisor and consultant specializing in EU policy, regulation, and geopolitics, with a focus on financial services, taxation, energy, and economic sectors. He has extensive experience working within the European political and regulatory environment, including roles at the European Banking Federation and as a consultant at Flint Global. His education background in law and international relations from institutions including University of Warsaw and Syracuse University College of Law complements his expertise. Marciniak’s career reflects a strategic engagement with EU legislative processes, policy analysis, and stakeholder management, particularly in financial market regulations and EU economic affairs. This combination of legal, political, and regulatory insight places him at the nexus of EU lobbying efforts, especially regarding financial and economic policies

Mateusz Adrian Marciniak, while employed by Flint Global, has functioned as a lobbyist dedicated to advancing the interests of Flint’s clients within the EU institutional framework. Although Flint Global is an independent consulting and lobbying firm, Marciniak’s work, as indicated, involves providing strategic advice on EU policy and regulatory developments. His lobbying efforts implicitly support client countries or organizations looking to influence EU decision-making, including aspects of financial regulation, taxation, and energy policy. Specifically, while there is no direct public documentation of an agenda explicitly promoting UK interests, his role overlaps with issues where the UK and EU interface—such as the digital euro, EU-UK economic relations, and regulatory standards. Given his prior legislative support to MEP Danuta Hübner on post-Brexit economic topics, Marciniak may leverage his expertise to help clients adapt to or influence EU policies affecting UK-EU frameworks indirectly. His knowledge of financial markets and trade regulation suggests a nuanced lobbying approach to shape favorable conditions for UK-linked business or economic interests within the broader EU regulatory environment, effectively serving Flint Global’s client portfolio with ties to UK economic and financial agendas

During his tenure with Flint Global (September 2023 – September 2024), Mateusz Adrian Marciniak engaged in multiple lobbying activities centered on EU policy areas critical to Flint’s clients. These include financial services reforms (notably MIFIR and EMIR post-trade regulations), digital economy issues (digital euro), and energy market regulation. His experience in the European Parliament supporting MEP Danuta Hübner involved detailed legislative briefings and policy analysis on these topics, which are influential in shaping EU directive outcomes. Notable lobbying engagements likely involved direct meetings with MEPs, European Commission officials, and other stakeholders in Brussels where Flint’s clients seek to influence ongoing and forthcoming regulations. Although precise records of all meetings attended are not publicly detailed, it is standard for public affairs advisors like Marciniak to orchestrate complex stakeholder consultations, expert roundtables, and bilateral meetings with EU decision-makers. These activities contributed to shaping regulatory frameworks, evidenced by progressive reforms in financial market legislation that incorporate stakeholder input on compliance, market stability, and interoperability—outcomes aligned with Flint’s advocacy strategy. This demonstrates that his lobbying played a role in facilitating informed EU decision-making processes benefiting Flint’s clients and potentially their allied countries, including the UK

LinkedIn: Mateusz Marciniak, LL.M – Public Affairs Advisor in Brussels
Flint Global Website: (general contact via Flint Global site, no direct personal site)
Professional email and phone contacts are typically held confidential within Flint Global; publicly available direct contact details are not disclosed.
No known personal social media profiles beyond LinkedIn were found.

This profile consolidates publicly available and confirmed professional and lobbying-related data about Mateusz Adrian Marciniak as a Flint Global lobbyist active in EU policy advocacy, with inferred engagement related to UK and EU financial and economic interests.