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]
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Marius Tollenaere

Country / Territory

  • GermanyGermany

Get in touch

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  • English
  • German

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[email protected]

T:+49 69 506 029480

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

Fragomen in Frankfurt, Germany

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

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Get in touch

Languages

  • English
  • German

Contact information

Email

[email protected]

T:+49 69 506 029480

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

Fragomen in Frankfurt, Germany

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

Fragomen in Frankfurt, Germany

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

Contributor, “Einwanderungsrecht.” 3rd Edition, 2025.

Speaker, “Fragomen Panel: Bye-Bye Borders (In German).” GBTA + VDR Europe Conference 2025, Hamburg, Germany, 12 November 2025.

Co-author, “Flucht und Arbeitsmigration: (noch) ein Dickicht in der Behördenlandschaft.” Human Resources Manager, 22 September 2025. 

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

June 11, 2026 | Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026Read more

February 26, 2026 | Meeting

Meeting Labour Skill Needs While Expanding Refugee ProtectionRead more

November 10, 2025 — November 12, 2025 | Meeting

GBTA + VDR Europe Conference 2025Read more
More related insights

Marius’s insights

June 11, 2026 | Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026Read more

February 26, 2026 | Meeting

Meeting Labour Skill Needs While Expanding Refugee ProtectionRead more

November 10, 2025 — November 12, 2025 | Meeting

GBTA + VDR Europe Conference 2025Read more
More related insights

Marius’s insights

June 11, 2026 | Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026Read more

February 26, 2026 | Meeting

Meeting Labour Skill Needs While Expanding Refugee ProtectionRead more

November 10, 2025 — November 12, 2025 | Meeting

GBTA + VDR Europe Conference 2025Read 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

Fragomen in Frankfurt, Germany

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

June 11, 2026 | Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026Read more

February 26, 2026 | Meeting

Meeting Labour Skill Needs While Expanding Refugee ProtectionRead more

November 10, 2025 — November 12, 2025 | Meeting

GBTA + VDR Europe Conference 2025Read 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

Fragomen in Frankfurt, Germany

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

June 11, 2026 | Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026Read more

February 26, 2026 | Meeting

Meeting Labour Skill Needs While Expanding Refugee ProtectionRead more

November 10, 2025 — November 12, 2025 | Meeting

GBTA + VDR Europe Conference 2025Read 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

Fragomen in Frankfurt, Germany

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

June 11, 2026 | Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026Read more

February 26, 2026 | Meeting

Meeting Labour Skill Needs While Expanding Refugee ProtectionRead more

November 10, 2025 — November 12, 2025 | Meeting

GBTA + VDR Europe Conference 2025Read more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Explore more at Fragomen

Media mentions

Hong Kong Business Magazine: Employers Seek Broader Immigration Reforms

In this Hong Kong Business article, Managing Director Magdalene Tennant discusses Hong Kong’s recent decision to allow employment and dependent visa renewal applications to be filed up to three months before expiry, a change intended to reduce the risk of work disruptions and provide employers with greater flexibility in managing foreign talent.

Learn more

Media mentions

Professional Engineering: How to Access International Engineering Talent in a Changing Immigration System

In this article published by Professional Engineering, Senior Manager Nadine Barnole examines how UK engineering employers can continue to access international talent amid growing skills shortages and a rapidly evolving immigration landscape.

Learn more

Media mentions

Times Brasil CNBC: How Technology is Reshaping Identity Verification Systems

In this Times Brasil CNBC Real Tech interview, Partner Diana Quintas discusses Brazil’s recent visa exemption for Chinese nationals, what it signals for Brazil-China mobility and how technology is helping support more efficient cross-border movement.

Learn more

Podcast

World Refugee Day 2026

In this episode of The Immigration Conversation, Business Immigration Manager Ayana Ibrahimi is joined by Lara Dyer, Chief Solutions Officer (Americas) at Talent Beyond Boundaries; Stuart Szabo, CEO and Co-founder of Beacon; and Jessica Turner, Co-founder and CEO of ThriveON, to discuss refugee labour mobility and employment-based pathways for displaced talent.

Learn more

Video

Business Travel to China | #MobilityMinute

In this Mobility Minute, Manager Maja Sugui provides an overview of key visa and compliance considerations for business travelers planning trips to China.

Learn more

Media mentions

Michigan Law’s Law Quadrangle: Christopher Wendt, ’98: At the Intersection of Immigration and Health Care Workers

In this profile published in Michigan Law’s Law Quadrangle, Counsel Christopher Wendt discusses the role of immigration in supporting the US healthcare workforce and expanding access to civil legal aid in Minnesota.

Learn more

Media mentions

WealthBriefing: The End of the Golden Visa?

Director Isobel Neilson discusses how investment migration programs are evolving amid political scrutiny, regulatory reform and shifting priorities, with governments moving toward pathways that emphasise economic contribution, talent and stronger ties to host countries.

Learn more

Fragomen news

Fragomen Welcomes Christopher Wendt as Counsel

Fragomen welcomes Counsel Christopher Wendt in Minnesota, bringing nearly three decades of immigration law experience, including more than 20 years supporting workforce immigration programs for Mayo Clinic.

Learn more

Media mentions

The ABC: Switzerland is Set to Vote on a Population Cap. Here's Why it's Divided the Nation

Senior Counsel Dr. Anna Boucher discusses Switzerland’s rejected population cap referendum and the role of immigration in supporting workforce and economic stability.

Learn more

Awards

Fragomen Featured in Global Mobility Lawyer’s 2026 GML Elite

Fragomen has been featured in the 2026 GML Elite, Global Mobility Lawyer’s inaugural guide to leading global mobility teams, highlighting the firm’s global immigration capabilities, international footprint and work supporting multinational clients.

Learn more

Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026

Partner Marius Tollenaere outlines the key 2026 EU Blue Card changes employers must understand to stay compliant and competitive.

Learn more

Media mentions

STV News: What Can Scots Fans Do if Their US Travel Permits Have Been Revoked?

Partner Charlotte Slocombe explained options available to Scotland fans whose US ESTAs have been denied or revoked ahead of the FIFA World Cup.

Learn more

Media mentions

Hong Kong Business Magazine: Employers Seek Broader Immigration Reforms

In this Hong Kong Business article, Managing Director Magdalene Tennant discusses Hong Kong’s recent decision to allow employment and dependent visa renewal applications to be filed up to three months before expiry, a change intended to reduce the risk of work disruptions and provide employers with greater flexibility in managing foreign talent.

Learn more

Media mentions

Professional Engineering: How to Access International Engineering Talent in a Changing Immigration System

In this article published by Professional Engineering, Senior Manager Nadine Barnole examines how UK engineering employers can continue to access international talent amid growing skills shortages and a rapidly evolving immigration landscape.

Learn more

Media mentions

Times Brasil CNBC: How Technology is Reshaping Identity Verification Systems

In this Times Brasil CNBC Real Tech interview, Partner Diana Quintas discusses Brazil’s recent visa exemption for Chinese nationals, what it signals for Brazil-China mobility and how technology is helping support more efficient cross-border movement.

Learn more

Podcast

World Refugee Day 2026

In this episode of The Immigration Conversation, Business Immigration Manager Ayana Ibrahimi is joined by Lara Dyer, Chief Solutions Officer (Americas) at Talent Beyond Boundaries; Stuart Szabo, CEO and Co-founder of Beacon; and Jessica Turner, Co-founder and CEO of ThriveON, to discuss refugee labour mobility and employment-based pathways for displaced talent.

Learn more

Video

Business Travel to China | #MobilityMinute

In this Mobility Minute, Manager Maja Sugui provides an overview of key visa and compliance considerations for business travelers planning trips to China.

Learn more

Media mentions

Michigan Law’s Law Quadrangle: Christopher Wendt, ’98: At the Intersection of Immigration and Health Care Workers

In this profile published in Michigan Law’s Law Quadrangle, Counsel Christopher Wendt discusses the role of immigration in supporting the US healthcare workforce and expanding access to civil legal aid in Minnesota.

Learn more

Media mentions

WealthBriefing: The End of the Golden Visa?

Director Isobel Neilson discusses how investment migration programs are evolving amid political scrutiny, regulatory reform and shifting priorities, with governments moving toward pathways that emphasise economic contribution, talent and stronger ties to host countries.

Learn more

Fragomen news

Fragomen Welcomes Christopher Wendt as Counsel

Fragomen welcomes Counsel Christopher Wendt in Minnesota, bringing nearly three decades of immigration law experience, including more than 20 years supporting workforce immigration programs for Mayo Clinic.

Learn more

Media mentions

The ABC: Switzerland is Set to Vote on a Population Cap. Here's Why it's Divided the Nation

Senior Counsel Dr. Anna Boucher discusses Switzerland’s rejected population cap referendum and the role of immigration in supporting workforce and economic stability.

Learn more

Awards

Fragomen Featured in Global Mobility Lawyer’s 2026 GML Elite

Fragomen has been featured in the 2026 GML Elite, Global Mobility Lawyer’s inaugural guide to leading global mobility teams, highlighting the firm’s global immigration capabilities, international footprint and work supporting multinational clients.

Learn more

Media mentions

Deutscher AnwaltSpiegel: Die Blaue Karte EU 2026

Partner Marius Tollenaere outlines the key 2026 EU Blue Card changes employers must understand to stay compliant and competitive.

Learn more

Media mentions

STV News: What Can Scots Fans Do if Their US Travel Permits Have Been Revoked?

Partner Charlotte Slocombe explained options available to Scotland fans whose US ESTAs have been denied or revoked ahead of the FIFA World Cup.

Learn more
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June 17, 2026 | IrelandIreland: Stricter Family Sponsorship Requirements
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June 18, 2026 | IndonesiaIndonesia: Processing Delays Following Ongoing Anti-Corruption Investigations
June 18, 2026 | United KingdomProfessional Engineering: How to Access International Engineering Talent in a Changing Immigration System
June 18, 2026 | BrazilTimes Brasil CNBC: How Technology is Reshaping Identity Verification Systems
June 17, 2026 | IrelandIreland: Stricter Family Sponsorship Requirements
June 18, 2026 | ChinaHong Kong Business Magazine: Employers Seek Broader Immigration Reforms
June 18, 2026 | IndonesiaIndonesia: Processing Delays Following Ongoing Anti-Corruption Investigations
June 18, 2026 | United KingdomProfessional Engineering: How to Access International Engineering Talent in a Changing Immigration System
June 18, 2026 | BrazilTimes Brasil CNBC: How Technology is Reshaping Identity Verification Systems
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