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June 30, 2025 | 🌐Minimum Salary Changes Announced
June 30, 2025 | United StatesUnited States: DHS Proposal to Replace Duration of Status Designation with Fixed Periods of Stay for F, J, and I Nonimmigrants Is Sent to OMB for Review
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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

Publications and lectures

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

June 23, 2025 | Webinar

Using Labour Migration to Support Europe’s Green TransitionRead more

June 19, 2025 | Media mentions

Welt: Mehr Einwanderung dank „Super-Agentur“ – die heiklen Migrationspläne der RegierungRead more

June 18, 2025 | Webinar

New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt PartnersRead more
More related insights

Marius’s insights

June 23, 2025 | Webinar

Using Labour Migration to Support Europe’s Green TransitionRead more

June 19, 2025 | Media mentions

Welt: Mehr Einwanderung dank „Super-Agentur“ – die heiklen Migrationspläne der RegierungRead more

June 18, 2025 | Webinar

New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt PartnersRead more
More related insights

Marius’s insights

June 23, 2025 | Webinar

Using Labour Migration to Support Europe’s Green TransitionRead more

June 19, 2025 | Media mentions

Welt: Mehr Einwanderung dank „Super-Agentur“ – die heiklen Migrationspläne der RegierungRead more

June 18, 2025 | Webinar

New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt PartnersRead 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

June 23, 2025 | Webinar

Using Labour Migration to Support Europe’s Green TransitionRead more

June 19, 2025 | Media mentions

Welt: Mehr Einwanderung dank „Super-Agentur“ – die heiklen Migrationspläne der RegierungRead more

June 18, 2025 | Webinar

New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt PartnersRead 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

June 23, 2025 | Webinar

Using Labour Migration to Support Europe’s Green TransitionRead more

June 19, 2025 | Media mentions

Welt: Mehr Einwanderung dank „Super-Agentur“ – die heiklen Migrationspläne der RegierungRead more

June 18, 2025 | Webinar

New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt PartnersRead 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

June 23, 2025 | Webinar

Using Labour Migration to Support Europe’s Green TransitionRead more

June 19, 2025 | Media mentions

Welt: Mehr Einwanderung dank „Super-Agentur“ – die heiklen Migrationspläne der RegierungRead more

June 18, 2025 | Webinar

New German Federal Government – Migration Law Changes on the Horizon: Insights from Our Frankfurt PartnersRead more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Explore more at Fragomen

Fragomen news

2025年6月 アメリカ移民法ダイジェストLearn more

Media mentions

Arab News: Growing Saudi Film Industry Driving Job Creation, Economic Growth

Partner Abeer Al Husseini highlights how Saudi Arabia’s growing film industry is creating jobs, attracting global talent and supporting economic diversification.

Learn more

Awards

Silicon Valley Business Journal Recognizes Partner Cindy Jen Among 2025 Women of Influence

Partner Cindy Jen is recognized as a 2025 “Woman of Influence” by the Silicon Valley Business Journal.

Learn more

Blog post

2025 LAR and Canada Immigration Trends: Balancing Control and Opportunity

This blog highlights the most significant immigration developments shaping Canada and Latin America in 2025. Drawing from Fragomen’s upcoming 2025 Regional Immigration Overviews—available mid-July—it provides actionable insights and strategic guidance to help businesses and individuals navigate the region’s dynamic immigration landscape.

Learn more

Media mentions

Global Mobility Lawyer: DOL Plans “Emergency Agency” to Approve H-2A Visas

Partner Rachel Beardsley highlights how employment-based immigration supports the US agricultural sector amid labor shortages and evolving policies.

Learn more

Media mentions

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Partner Abeer Al Husseini shares how employers can support mobile talent through travel readiness, immigration awareness and a people-focused approach.

Learn more

Blog post

The EB-1C Green Card for Multinational Managers and Executives: Exploring Non-Traditional Pathways to Permanent Residency

Associate Whitney Luman discusses the EB-1C Green Card for multinational managers and executives, exploring non-traditional pathways to permanent residency.

Learn more

Video

Post-Graduation Work Permit (PGWP) | Staying in Canada Post-Graduation

Partner Jack Kim discusses one of many immigration pathways for staying in Canada post-graduation, the Post-Graduation Work Permit (PGWP).

Learn more

Blog post

A New Beginning: The Rise of Highly Skilled Visa and Digital Nomad Visa Options in APAC

Practice Leader Kate Praphakornphiphat, Senior Manager Amy Zhang, Immigration Program Manager Melissa Ngeow and Senior Knowledge Management Specialist Faye Amorado discuss the increasing popularity of highly skilled visas and digital nomad visas in the Asia-Pacific region.

Learn more

Fragomen news

Canada's Semiconductor Council: Strengthening Canada’s Semiconductor Talent Pipeline for Global Competitiveness

Partner Cosmina Morariu contributed to Canada’s Semiconductor Council 2025 Talent & Workforce Development report, highlighting immigration’s role in closing talent gaps.

Learn more

Awards

Fragomen Recognized with Community Service Award at Woori Center 2025 Gala

Fragomen was honored with the Community Service Award at the Woori Center 2025 Gala on June 21, 2025 in Philadelphia.

Learn more

Media mentions

People Management: How HR Can Prepare for the ETIAS Rollout

Manager Andreia Florina Ghimis explains how HR teams can prepare for the EU’s new ETIAS travel authorisation system by communicating changes, supporting employees and ensuring compliance.

Learn more

Fragomen news

2025年6月 アメリカ移民法ダイジェストLearn more

Media mentions

Arab News: Growing Saudi Film Industry Driving Job Creation, Economic Growth

Partner Abeer Al Husseini highlights how Saudi Arabia’s growing film industry is creating jobs, attracting global talent and supporting economic diversification.

Learn more

Awards

Silicon Valley Business Journal Recognizes Partner Cindy Jen Among 2025 Women of Influence

Partner Cindy Jen is recognized as a 2025 “Woman of Influence” by the Silicon Valley Business Journal.

Learn more

Blog post

2025 LAR and Canada Immigration Trends: Balancing Control and Opportunity

This blog highlights the most significant immigration developments shaping Canada and Latin America in 2025. Drawing from Fragomen’s upcoming 2025 Regional Immigration Overviews—available mid-July—it provides actionable insights and strategic guidance to help businesses and individuals navigate the region’s dynamic immigration landscape.

Learn more

Media mentions

Global Mobility Lawyer: DOL Plans “Emergency Agency” to Approve H-2A Visas

Partner Rachel Beardsley highlights how employment-based immigration supports the US agricultural sector amid labor shortages and evolving policies.

Learn more

Media mentions

Global Mobility Lawyer: Middle East Tensions Show Importance of Caring for Mobile Talent

Partner Abeer Al Husseini shares how employers can support mobile talent through travel readiness, immigration awareness and a people-focused approach.

Learn more

Blog post

The EB-1C Green Card for Multinational Managers and Executives: Exploring Non-Traditional Pathways to Permanent Residency

Associate Whitney Luman discusses the EB-1C Green Card for multinational managers and executives, exploring non-traditional pathways to permanent residency.

Learn more

Video

Post-Graduation Work Permit (PGWP) | Staying in Canada Post-Graduation

Partner Jack Kim discusses one of many immigration pathways for staying in Canada post-graduation, the Post-Graduation Work Permit (PGWP).

Learn more

Blog post

A New Beginning: The Rise of Highly Skilled Visa and Digital Nomad Visa Options in APAC

Practice Leader Kate Praphakornphiphat, Senior Manager Amy Zhang, Immigration Program Manager Melissa Ngeow and Senior Knowledge Management Specialist Faye Amorado discuss the increasing popularity of highly skilled visas and digital nomad visas in the Asia-Pacific region.

Learn more

Fragomen news

Canada's Semiconductor Council: Strengthening Canada’s Semiconductor Talent Pipeline for Global Competitiveness

Partner Cosmina Morariu contributed to Canada’s Semiconductor Council 2025 Talent & Workforce Development report, highlighting immigration’s role in closing talent gaps.

Learn more

Awards

Fragomen Recognized with Community Service Award at Woori Center 2025 Gala

Fragomen was honored with the Community Service Award at the Woori Center 2025 Gala on June 21, 2025 in Philadelphia.

Learn more

Media mentions

People Management: How HR Can Prepare for the ETIAS Rollout

Manager Andreia Florina Ghimis explains how HR teams can prepare for the EU’s new ETIAS travel authorisation system by communicating changes, supporting employees and ensuring compliance.

Learn more

Stay in touch

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