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Important Updates
June 10, 2025 | 🌐Minimum Salary Changes Announced
June 11, 2025 | United KingdomConstruction News: The Immigration White Paper: What Builders Need to Know
June 11, 2025 | IrelandIrish Legal News: Fragomen Opens Second Office in Cork
June 10, 2025 | FinlandFinland: Relaxed Change of Role Rules for Labor Shortage Sectors
June 10, 2025 | GermanyKiplinger: Retire in Finland and Live the Nordic Dream
June 10, 2025 | 🌐Minimum Salary Changes Announced
June 11, 2025 | United KingdomConstruction News: The Immigration White Paper: What Builders Need to Know
June 11, 2025 | IrelandIrish Legal News: Fragomen Opens Second Office in Cork
June 10, 2025 | FinlandFinland: Relaxed Change of Role Rules for Labor Shortage Sectors
June 10, 2025 | GermanyKiplinger: Retire in Finland and Live the Nordic Dream
June 10, 2025 | 🌐Minimum Salary Changes Announced
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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

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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 fßr Auswärtige Politik/German Council on Foreign Relations

Publications and lectures

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-Wßrttembergische 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 | Meeting

Using Labour Migration to Support Europe’s Green TransitionRead more

June 18, 2025 | Webinar

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

June 5, 2025 | Conference

Creative Bureaucracy Festival 2025Read more
More related insights

Marius’s insights

June 23, 2025 | Meeting

Using Labour Migration to Support Europe’s Green TransitionRead more

June 18, 2025 | Webinar

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

June 5, 2025 | Conference

Creative Bureaucracy Festival 2025Read more
More related insights

Marius’s insights

June 23, 2025 | Meeting

Using Labour Migration to Support Europe’s Green TransitionRead more

June 18, 2025 | Webinar

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

June 5, 2025 | Conference

Creative Bureaucracy Festival 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

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

June 23, 2025 | Meeting

Using Labour Migration to Support Europe’s Green TransitionRead more

June 18, 2025 | Webinar

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

June 5, 2025 | Conference

Creative Bureaucracy Festival 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

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

June 23, 2025 | Meeting

Using Labour Migration to Support Europe’s Green TransitionRead more

June 18, 2025 | Webinar

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

June 5, 2025 | Conference

Creative Bureaucracy Festival 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

Frankfurt

Fragomen Global LLP

Neue Mainzer Str. 75

Frankfurt am Main 60311

Germany

Connect via Linkedin

Marius’s insights

June 23, 2025 | Meeting

Using Labour Migration to Support Europe’s Green TransitionRead more

June 18, 2025 | Webinar

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

June 5, 2025 | Conference

Creative Bureaucracy Festival 2025Read more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Explore more at Fragomen

Media mentions

Construction News: The Immigration White Paper: What Builders Need to Know

Senior Associate Clara Gautrais and Immigration Paralegal Sean Pearce outline the impact of new visa skill requirements and sponsorship rules on UK construction firms.

Learn more

Media mentions

Irish Legal News: Fragomen Opens Second Office in Cork

This article in Irish Legal News covers the firm's recent announcement of its new office opening in Cork, Ireland.

Learn more
Generic Insights

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Kiplinger: Retire in Finland and Live the Nordic Dream

Director Audrey Morew outlines how US retirees may apply for Finnish residency under the “residence permit on other grounds” route.

Learn more

Media mentions

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Partner Louise Haycock explains how the UK’s decision to double the qualifying period for Indefinite Leave to Remain is creating uncertainty for international talent and increasing pressure on employers.

Learn more

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San Diego Managing Partner Karine Wenger discussed the upcoming Olympic immigration landscape and potential challenges for international participants.

Learn more

Media mentions

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Partner Daniel Pierce notes that limited social media activity or private accounts could lead to greater scrutiny for international students applying for US visas.

Learn more

Fragomen news

Fragomen Grows Irish Operations with New Cork Office

Fragomen announces the opening of a new office in Cork, expanding its presence in Ireland to better support clients across the country's southern and western regions.

Learn more

Awards

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Fragomen is ranked both nationally and locally in "Best Law Firms in Australia" by The Best Lawyers.

Learn more

Awards

Global Mobility Lawyer Recognises Fragomen's Wout van Doren and Tanya Loughran as Tomorrow's Leaders

Global Mobility Lawyer recognises Senior Immigration Manager Wout van Doren and Manager Tanya Loughran as Tomorrow's Leaders.

Learn more

Media mentions

Khaleej Times: 30,000 jobs, AI growth: What Disneyland Abu Dhabi means for the UAE

Partner Shayan Sultan discusses how Disneyland Abu Dhabi could impact hiring, Emiratisation and immigration planning in the UAE.

Learn more

Media mentions

Construction News: The Immigration White Paper: What Builders Need to Know

Senior Associate Clara Gautrais and Immigration Paralegal Sean Pearce outline the impact of new visa skill requirements and sponsorship rules on UK construction firms.

Learn more

Media mentions

Irish Legal News: Fragomen Opens Second Office in Cork

This article in Irish Legal News covers the firm's recent announcement of its new office opening in Cork, Ireland.

Learn more
Generic Insights

Media mentions

Kiplinger: Retire in Finland and Live the Nordic Dream

Director Audrey Morew outlines how US retirees may apply for Finnish residency under the “residence permit on other grounds” route.

Learn more

Media mentions

Bloomberg: UK’s Visa Crackdown Leaves City of London Immigrants in Limbo

Partner Louise Haycock explains how the UK’s decision to double the qualifying period for Indefinite Leave to Remain is creating uncertainty for international talent and increasing pressure on employers.

Learn more

Fragomen news

Fragomen Appoints Partner Daniel Brown to Lead its WorkRight U.S. I-9 Technology Solution

Fragomen announces the appointment of Partner Daniel Brown to the position of Chief Executive Officer of WorkRight U.S., the firm’s I-9 employee verification technology.

Learn more

Fragomen news

Fragomen Ranked in Chambers USA 2025

Fragomen earned top rankings in Chambers USA 2025, with Band 1 recognition nationally.

Learn more

Media mentions

The Hollywood Reporter: Will Trump Torch L.A.’s Olympics?

San Diego Managing Partner Karine Wenger discussed the upcoming Olympic immigration landscape and potential challenges for international participants.

Learn more

Media mentions

Business Standard: Could Social Media Silence Cost You a US Student Visa? Experts Weigh In

Partner Daniel Pierce notes that limited social media activity or private accounts could lead to greater scrutiny for international students applying for US visas.

Learn more

Fragomen news

Fragomen Grows Irish Operations with New Cork Office

Fragomen announces the opening of a new office in Cork, expanding its presence in Ireland to better support clients across the country's southern and western regions.

Learn more

Awards

Fragomen Ranked in 2026 Edition of "Best Law Firms in Australia" by The Best Lawyers

Fragomen is ranked both nationally and locally in "Best Law Firms in Australia" by The Best Lawyers.

Learn more

Awards

Global Mobility Lawyer Recognises Fragomen's Wout van Doren and Tanya Loughran as Tomorrow's Leaders

Global Mobility Lawyer recognises Senior Immigration Manager Wout van Doren and Manager Tanya Loughran as Tomorrow's Leaders.

Learn more

Media mentions

Khaleej Times: 30,000 jobs, AI growth: What Disneyland Abu Dhabi means for the UAE

Partner Shayan Sultan discusses how Disneyland Abu Dhabi could impact hiring, Emiratisation and immigration planning in the UAE.

Learn more

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