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September 22, 2025 | GermanyHuman Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der Behördenlandschaft
September 22, 2025 | IndonesiaIndonesia: Work Permit Processing Delays due to System Outage
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Porthole headshot image of Fragomen [Frankfurt][Director][MariusTollenaere]

Partner

Marius Tollenaere

Landscape hero image of Fragomen Frankfurt][Director][MariusTollenaere]
Porthole headshot image of Fragomen [Frankfurt][Director][MariusTollenaere]
  • People

Partner

Marius Tollenaere

Country / Territory

  • GermanyGermany

Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

F:+49 (0) 69 20 97 49 29

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

F:+49 (0) 69 20 97 49 29

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

F:+49 (0) 69 20 97 49 29

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin
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Marius is an Attorney (Rechtsanwalt) focusing on German and European immigration and citizenship law. With extensive experience advising corporate clients across industries, Marius focuses on helping companies navigate complex immigration programs while ensuring compliance at every step. His clients range from SMEs, which largely support the German economy, to global corporations in sectors like finance, IT, banking and automotive, making him a trusted advisor on both local and cross-border immigration matters.

As a member of Fragomen’s Government Strategies Group, Marius leverages his deep knowledge to advise government bodies such as parliament, ministries and advisory panels. He also plays a key role in aligning corporate clients' voices with government strategies, bridging the gap between business needs and immigration policy.

Clients appreciate the careful and diligent approach that Marius has when developing tailored solutions to ensure German companies can compliantly recruit talent from abroad and also easily move their employees for business travel within the EU and non-EU countries in Europe. He’s particularly passionate about working with clients to address the skills gaps and in turn positively impact the German economy. His work extends beyond immigration law, as he guides businesses on global mobility programs while addressing related business challenges.

In addition to corporate immigration, Marius is also involved in humanitarian work, advising companies on how to integrate displaced talent into their workforce. His hands-on approach ensures that clients see him not just as skilled immigration practitioner, but as a trusted problem solver who delivers valuable insights into trends, legal developments and strategic solutions.

Marius’ commitment to making immigration accessible and understandable stems from his belief that while the field may seem complex, it plays a critical role in driving business success. His goal is to remove the fear and uncertainty around immigration law, empowering clients with the knowledge and solutions they need to thrive—and make a difference.

A trusted authority on German and EU immigration, Marius is a co-author of the standard immigration law textbook “Einwanderungsrecht” by C.H. Beck and of “Handbuch des Ausländerrechts” by Wolters Kluwer, and is frequently quoted in media outlets, providing commentary on current trends, policy changes and strategic developments.

Marius speaks English and German.

In addition to corporate immigration, Marius is also involved in humanitarian work, advising companies on how to integrate displaced talent into their workforce. His hands-on approach ensures that clients see him not just as skilled immigration practitioner, but as a trusted problem solver who delivers valuable insights into trends, legal developments and strategic solutions.

Marius’ commitment to making immigration accessible and understandable stems from his belief that while the field may seem complex, it plays a critical role in driving business success. His goal is to remove the fear and uncertainty around immigration law, empowering clients with the knowledge and solutions they need to thrive—and make a difference.

A trusted authority on German and EU immigration, Marius is a co-author of the standard immigration law textbook “Einwanderungsrecht” by C.H. Beck and of “Handbuch des Ausländerrechts” by Wolters Kluwer, and is frequently quoted in media outlets, providing commentary on current trends, policy changes and strategic developments.

Marius speaks English and German.

Education

  • Oberlandesgericht High Regional Court Frankfurt am Main, Second State Exam
  • University of Freiburg, First State Exam

More from Marius

Admissions

Bar Admissions: Rechtsanwaltskammer Frankfurt am Main

Professional accomplishments

Member, Deutscher Anwaltverein and subcommittee Arbeitsgemeinschaft Ausländer - und Asylrecht

Member, Netzwerk Migrationsrecht

Member, Deutsche Gesellschaft für Auswärtige Politik/German Council on Foreign Relations

Member, Executive Committee of the German Bar Association, Migration Law Working Group

Publications and lectures

Quoted, “Mehr Einwanderung dank ‘Super-Agentur’ – die heiklen Migrationspläne der Regierung.” Welt, 23 June 2025.

Speaker, “Using Labour Migration to Support Europe’s Green Transition.” Center for Global Development, Webinar, 23 June 2025.

Speaker, “New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt Partners.” Fragomen, Webinar, 18 June 2025.

Quoted, “Geschäfte mit der Einwanderung: Verband für Fachkräftegewinnung gegründet.” Tagesspiegel, 14 June 2025.

Speaker, “GermanyWelcomes – Skilled immigration, but how?” Creative Bureaucracy Festival 2025, Berlin, Germany, 5 June 2025.

Speaker, “Skilled labor recruitment sector - legal situation and stakeholders.” Hohenheim Days on Migration Law, Hohenheim, Germany, 3 May 2025.

Quoted, “Talente auf der Flucht: Autoritäre USA als Chance für Europas Wissensgesellschaft.” Markt und Mittelstand, 9 April 2025.

Speaker, “The One Take: German Elections.” Worldwide Employee Relocation Council (WERC), 24 March 2025.

Quoted, “Zölle und Migration: Der Trump-Schock trifft Berlin.” Berliner Zeitung, 19 March 2025.

Speaker, “Alternative Hiring Solutions: Connecting Businesses and Displaced Talent (EU Session).” Fragomen and Talent Beyond Boundaries, Webinar, 12 March 2025.

Moderator, "Fragomen Germany Global Mobility Forum.“ Fragomen, Frankfurt, Germany, 19 November 2024.

Quoted, “Der Arbeitsminister spricht von „Lahmarschigkeit“ – Wie die Ampel ihre Zuwanderungs-Ziele verfehlt.“ WELT, 4 November 2024.

Author, “Ordnungspolitik in der Arbeitsmigration.“ Zeitschrift für Ausländerrecht und Ausländerpolitik – ZAR, 44th Edition, Pages 309-310, September 2024.

Co-Author, “Handbuch des Ausländerrechts der Bundesrepublik Deutschland.“ 8 February 2024.

Co-Author, “Einwanderungsrecht.“ C.H. Beck Verlag, 27 April 2020.

Speaker, “Fachkräfteeinwanderung: Zu lange Verwaltungs­verfahren [Immigration of skilled workers: Too long administrative procedures].“ Deutscher Bundestag, 22 May 2023.

Author, “Regulierung wie im Mittelalter.” Published in Markt und Mittelstand, February, 2017.

Speaker, “System und aktuelle Entwicklungen des Arbeitsmigrationsrechts [System and current Trends in Labor Migration Law].” hosted by Forum Migrationsrecht, Martin Luther University Halle-Wittenberg, Halle, Germany, June 16, 2015.

Speaker "Das Deutsche Arbeitsmigrationsrecht [German Labor Migration Law].” hosted by Pro Bono Heidelberg - Studentische Rechtsberatung e.V., Heidelberg University, Heidelberg, Germany, June 12, 2015.

Author, “Konzernintern entsandte qualifizierte Fachkrafte aus Asien in Deutschland: Eine vernachlassigte Einwanderungskategorie mit großem Potenzial [Qualified Intra-corporate Transferees from Asia in Germany: A Neglected Immigration Category with Great Potential]." In Fachkräftemigration aus Asien nach Deutschland und Europa – Migration of skilled labour from Asia to Germany and Europe. Beiträge zu Migration und Integration, Band 5, edited by Axel Kreienbrink, 238 - 263. Nürnberg: Bundesamt für Migration und Flüchtlinge, 2014. Print.

Author, “German Immigration Law Changes.” In Yearbook 2014, edited by the American Chamber of Commerce Germany, 116-118. Frankfurt: ACC Verlag & Services, 2014. Print.

Speaker "Neue Entwicklungen im Bereich der Fachkräftezuwanderung [New Developments in Skilled Labor Migration]." Baden-Württembergische Rechtsberaterkonferenz, hosted by Evangelischer Oberkirchenrat, Karlsruhe, Germany, September 16, 2013 and January 13, 2014.

Speaker,"Konzernintern entsandte qualifizierte Fachkräfte aus Asien in Deutschland: Eine vernachlässigte Einwanderungskategorie mit großem Potential [Qualified Intra-corporate Transferees from Asia in Germany: A Neglected Immigration Category with Great Potential]." Lecture, Internationale Fachtagung Migration von Fachkräften aus Asien nach Deutschland und Europa hosted by the Federal Office for Migration and Refugees, Nürnberg, Germany, June 24, 2013.

Author, “German Visa Information.” In Yearbook 2013, edited by the American Chamber of Commerce Germany, 100-101. Frankfurt: ACC Verlag & Services, 2013. Print.

Co-author, “German Visa Information.” In Yearbook 2012, edited by the American Chamber of Commerce Germany, 102-103. Frankfurt: ACC Verlag & Services, 2011. Print.

Co-author, “16. DRK-Sommerkurs im Humanitären Völkerrecht, 01. - 07.08.2010, Berlin." Juristische Schulung (JuS), 12/2010: XVI – XVIII. Print.

Marius’s insights

September 22, 2025 | Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der BehördenlandschaftRead more

The Immigration Conversation
August 6, 2025

Michali Henig on Transforming Global Mobility at HelloFreshRead more

July 14, 2025 | Fragomen news

Partner Marius Tollenaere Elected to the Executive Committee of the German Bar Association's Migration Law Working Group Read more
More related insights

Marius’s insights

September 22, 2025 | Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der BehördenlandschaftRead more

The Immigration Conversation
August 6, 2025

Michali Henig on Transforming Global Mobility at HelloFreshRead more

July 14, 2025 | Fragomen news

Partner Marius Tollenaere Elected to the Executive Committee of the German Bar Association's Migration Law Working Group Read more
More related insights

Marius’s insights

September 22, 2025 | Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der BehördenlandschaftRead more

The Immigration Conversation
August 6, 2025

Michali Henig on Transforming Global Mobility at HelloFreshRead more

July 14, 2025 | Fragomen news

Partner Marius Tollenaere Elected to the Executive Committee of the German Bar Association's Migration Law Working Group Read more
More related insights

Country / Territory

  • GermanyGermany

Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

F:+49 (0) 69 20 97 49 29

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

September 22, 2025 | Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der BehördenlandschaftRead more

The Immigration Conversation
August 6, 2025

Michali Henig on Transforming Global Mobility at HelloFreshRead more

July 14, 2025 | Fragomen news

Partner Marius Tollenaere Elected to the Executive Committee of the German Bar Association's Migration Law Working Group Read more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

F:+49 (0) 69 20 97 49 29

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

September 22, 2025 | Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der BehördenlandschaftRead more

The Immigration Conversation
August 6, 2025

Michali Henig on Transforming Global Mobility at HelloFreshRead more

July 14, 2025 | Fragomen news

Partner Marius Tollenaere Elected to the Executive Committee of the German Bar Association's Migration Law Working Group Read more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

F:+49 (0) 69 20 97 49 29

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

September 22, 2025 | Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der BehördenlandschaftRead more

The Immigration Conversation
August 6, 2025

Michali Henig on Transforming Global Mobility at HelloFreshRead more

July 14, 2025 | Fragomen news

Partner Marius Tollenaere Elected to the Executive Committee of the German Bar Association's Migration Law Working Group Read more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Explore more at Fragomen

Media mentions

CNBC: Europe’s Work-Life Balance a Key Talent Draw as Trump Revamps H-1B Visa

Partner Louise Haycock highlights how the UK's immigration system and Skilled Worker visa changes support employers in planning talent pipelines.

Learn more

Fragomen news

2025年9月22日 アメリカ移民法速報Learn more

Media mentions

Gazeta Prawna: Nowe przepisy o zatrudnianiu cudzoziemców 2025. Spada liczba zezwoleń na pracę

Partner Karolina Schiffter discusses how new regulations have led Polish companies to adjust their use of work permits.

Learn more

Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der Behördenlandschaft

Partner Marius Tollenaere examines Germany’s immigration administration and strategies to support skilled labor.

Learn more

Media mentions

The Associated Press: What to Know About the H-1B Visa Trump Has Targeted With $100,000 Fees, Generating Confusion, Fear

Partner Bo Cooper discusses the potential implications of the $100,000 H-1B fee for employers, universities and research programs relying on international talent.

Learn more

Blog post

The Future of UK Residency and Citizenship: Longer Waits, Tougher Rules?

Partner Natasha Catterson discusses how proposed changes to UK residency and citizenship rules could affect immigration planning and applicant eligibility.

Learn more

Fragomen news

Partner Julia Onslow-Cole Featured in Financial Times Spotlight on 2025 Innovative Lawyers Europe Awards

Partner Julia Onslow-Cole is recognised for her work shaping global immigration and workforce mobility.

Learn more

Awards

Fragomen Receives Ally in Action Award from Oasis Legal Services

Fragomen was recognized by Oasis Legal Services with the Ally in Action Award at their 8th Annual Community Celebration: Liberation Sounds Like Us, which took place on September 12, 2025 in Oakland, California.

Learn more

Video

Summer 2025 Highlights | #FragomenFC - Ep. 11

Fragomen FC hosts recap major international football transfers and tournaments played this summer.

Learn more

Media mentions

The PIE: US Visa Changes “Further Widening Global Equity Gap”

Partner Aaron Blumberg highlights how careful planning can help international students navigate US visa changes and avoid disruptions to study and travel.

Learn more

Media mentions

Agência Eixos: Inovação e contratação de talentos estrangeiros: o desafio do compliance em novos cenários

Managing Director Diogo Kloper examines the challenges of hiring foreign talent in Brazil’s evolving energy sector and the role of compliance in supporting innovation.

Learn more

Blog post

Skilled Worker Visa 2025: Impact on UK Aviation Roles

Manager Adam Hickling, Senior Immigration Consultant Katya Fedorenko and Paralegal Sasindie Ambawatte explore how upcoming changes to the UK's skilled worker visa scheme may affect recruitment and retention in the aviation sector.

Learn more

Media mentions

CNBC: Europe’s Work-Life Balance a Key Talent Draw as Trump Revamps H-1B Visa

Partner Louise Haycock highlights how the UK's immigration system and Skilled Worker visa changes support employers in planning talent pipelines.

Learn more

Fragomen news

2025年9月22日 アメリカ移民法速報Learn more

Media mentions

Gazeta Prawna: Nowe przepisy o zatrudnianiu cudzoziemców 2025. Spada liczba zezwoleń na pracę

Partner Karolina Schiffter discusses how new regulations have led Polish companies to adjust their use of work permits.

Learn more

Media mentions

Human Resources Manager: Flucht und Arbeitsmigration: (noch) ein Dickicht in der Behördenlandschaft

Partner Marius Tollenaere examines Germany’s immigration administration and strategies to support skilled labor.

Learn more

Media mentions

The Associated Press: What to Know About the H-1B Visa Trump Has Targeted With $100,000 Fees, Generating Confusion, Fear

Partner Bo Cooper discusses the potential implications of the $100,000 H-1B fee for employers, universities and research programs relying on international talent.

Learn more

Blog post

The Future of UK Residency and Citizenship: Longer Waits, Tougher Rules?

Partner Natasha Catterson discusses how proposed changes to UK residency and citizenship rules could affect immigration planning and applicant eligibility.

Learn more

Fragomen news

Partner Julia Onslow-Cole Featured in Financial Times Spotlight on 2025 Innovative Lawyers Europe Awards

Partner Julia Onslow-Cole is recognised for her work shaping global immigration and workforce mobility.

Learn more

Awards

Fragomen Receives Ally in Action Award from Oasis Legal Services

Fragomen was recognized by Oasis Legal Services with the Ally in Action Award at their 8th Annual Community Celebration: Liberation Sounds Like Us, which took place on September 12, 2025 in Oakland, California.

Learn more

Video

Summer 2025 Highlights | #FragomenFC - Ep. 11

Fragomen FC hosts recap major international football transfers and tournaments played this summer.

Learn more

Media mentions

The PIE: US Visa Changes “Further Widening Global Equity Gap”

Partner Aaron Blumberg highlights how careful planning can help international students navigate US visa changes and avoid disruptions to study and travel.

Learn more

Media mentions

Agência Eixos: Inovação e contratação de talentos estrangeiros: o desafio do compliance em novos cenários

Managing Director Diogo Kloper examines the challenges of hiring foreign talent in Brazil’s evolving energy sector and the role of compliance in supporting innovation.

Learn more

Blog post

Skilled Worker Visa 2025: Impact on UK Aviation Roles

Manager Adam Hickling, Senior Immigration Consultant Katya Fedorenko and Paralegal Sasindie Ambawatte explore how upcoming changes to the UK's skilled worker visa scheme may affect recruitment and retention in the aviation sector.

Learn more

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