Important Updates
Important Updates
March 17, 2026 | United StatesUnited States: April 2026 Visa Bulletin – Continued Advancement in Several Employment-Based Categories; USCIS to Honor Dates for Filing
March 17, 2026 | European UnionEuropean Union: European Travel Information and Authorisation System (ETIAS) and Entry/Exit System (EES) Launch Status
March 17, 2026 | IndonesiaIndonesia: Mandatory Job Vacancy Reporting Requirement Enforced
March 17, 2026 | New ZealandNew Zealand: New Work Visa Options for Graduates Announced
March 17, 2026 | Trinidad & TobagoTrinidad and Tobago: Online Arrival/Departure Card Now Mandatory
March 17, 2026 | United StatesUnited States: April 2026 Visa Bulletin – Continued Advancement in Several Employment-Based Categories; USCIS to Honor Dates for Filing
March 17, 2026 | European UnionEuropean Union: European Travel Information and Authorisation System (ETIAS) and Entry/Exit System (EES) Launch Status
March 17, 2026 | IndonesiaIndonesia: Mandatory Job Vacancy Reporting Requirement Enforced
March 17, 2026 | New ZealandNew Zealand: New Work Visa Options for Graduates Announced
March 17, 2026 | Trinidad & TobagoTrinidad and Tobago: Online Arrival/Departure Card Now Mandatory
March 17, 2026 | United StatesUnited States: April 2026 Visa Bulletin – Continued Advancement in Several Employment-Based Categories; USCIS to Honor Dates for Filing
Subscribe
Fragomen.com home
Select Language
  • English
  • French
  • French - Canadian
  • German

Select Language

  • English
  • French
  • French - Canadian
  • German
ContactCareersMediaClient Portal
Search Fragomen.com
  • Our Services
    For EmployersFor IndividualsBy IndustryCase Studies
  • Our Tech & Innovation
  • Our People
  • Our Insights
    Worldwide Immigration Trends ReportsMagellan SeriesImmigration AlertsEventsMedia MentionsFragomen NewsBlogsPodcasts & Videos
  • Spotlights
    Travel and Mobility Considerations: Situation in the Middle EastNavigating Immigration Under the Second Trump AdministrationImmigration Matters: Your U.S. Compliance RoadmapCenter for Strategy and Applied InsightsVietnamese ImmigrationView More
  • About Us
    About FragomenOfficesResponsible Business PracticesFirm GovernanceRecognition

Our Services

  • For Employers
  • For Individuals
  • By Industry
  • Case Studies

Our Tech & Innovation

  • Our Approach

Our People

  • Overview / Directory

Our Insights

  • Worldwide Immigration Trends Reports
  • Magellan Series
  • Immigration Alerts
  • Events
  • Media Mentions
  • Fragomen News
  • Blogs
  • Podcasts & Videos

Spotlights

  • Travel and Mobility Considerations: Situation in the Middle East
  • Navigating Immigration Under the Second Trump Administration
  • Immigration Matters: Your U.S. Compliance Roadmap
  • Center for Strategy and Applied Insights
  • Vietnamese Immigration
  • View More

About Us

  • About Fragomen
  • Offices
  • Responsible Business Practices
  • Firm Governance
  • Recognition
Select Language
  • English
  • French
  • French - Canadian
  • German

Select Language

  • English
  • French
  • French - Canadian
  • German
ContactCareersMediaClient Portal
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
  • PrintPrint
  • SaveSave

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

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

November 6, 2025 | Conference

Fragomen Frankfurt Global Mobility Forum 2025Read more
More related insights

Marius’s insights

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

November 6, 2025 | Conference

Fragomen Frankfurt Global Mobility Forum 2025Read more
More related insights

Marius’s insights

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

November 6, 2025 | Conference

Fragomen Frankfurt Global Mobility Forum 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

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

November 6, 2025 | Conference

Fragomen Frankfurt Global Mobility Forum 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

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

November 6, 2025 | Conference

Fragomen Frankfurt Global Mobility Forum 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

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

November 6, 2025 | Conference

Fragomen Frankfurt Global Mobility Forum 2025Read more
More related insights

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Explore more at Fragomen

Blog post

Demographics, AI and Global Mobility in 2026: A Global Outlook on Workforce Strategy and Immigration Policy

Director Raj Mann explores how demographic change, artificial intelligence and global trade shifts are reshaping labour markets, workforce strategy and immigration policy in 2026.

Learn more

Blog post

Costa Rica Retirement Visa: Application and Requirements for Pensionado Residency

Immigration Supervisor Michael Salas Guzman explains the key eligibility requirements, documentation considerations and benefits of Costa Rica’s Pensionado residency program for retirees receiving lifetime pension income from abroad.

Learn more

Media mentions

Leading Britain's Conversation: One Old Arrest Can Stop You Entering the USA, Even If You Were Never Convicted

Senior Manager William Diaz outlines how US authorities evaluate prior criminal records under ESTA and what UK travellers need to know when completing their applications.

Learn more

Awards

Canada Managing Partner Cosmina Morariu Receives FCCCO Women in Leadership Award

Canada Managing Partner Cosmina Morariu has received the France Canada Chamber of Commerce in Ontario (FCCCO) Women in Leadership Award, recognizing her leadership and contributions to the business and legal communities.

Learn more
Generic Insights

Media mentions

Diário Do Turismo: Brasil passa a emitir visto eletrônico para chineses e amplia mobilidade de negócios

Managing Director Diogo Kloper highlights how Brazil’s new electronic visa for Chinese citizens reduces bureaucracy, lowers costs and streamlines business and tourism travel.

Learn more

Blog post

Why Climate Disruptions Are Reshaping Mobility Strategy

Partner, Global Responsible Business Practices, Lisa Koenig, Lead Analyst Dominic Dietrich, Senior Associate Sarah Blackmore and Senior Associate Sonya Berenfeld Cole examine why climate disruptions are reshaping mobility strategy as economic loss, workforce displacement and travel risks require organizations to reassess workforce planning and operational resilience.

Learn more

Media mentions

Construction Management: What Tougher English Rules Mean for Construction Employers

Associate Ilaria Iovieno and Immigration Consultant Sean Pearce explain how the UK’s higher English language requirement for work visas affects construction employers.

Learn more

Visas

FIFA Mexico 2026 World Cup Entry Requirements: Visa and Immigration Guide

Senior Business Immigration Manager Vicente Duque outlines key immigration considerations for international visitors traveling to Mexico for the 2026 FIFA World Cup, including visa eligibility, entry documentation and travel between host countries.

Learn more

Video

A Guide to EU Visa Categories for Non-EU Nationals

Explore EU visa options for non-EU nationals, including Schengen, long-stay and work visas like the EU Blue Card. Find the right visa for your needs.

Learn more

Media mentions

Global Mobility Lawyer: Give to Gain: Strengthening Safety and Legal Pathways for Migrant Women Experiencing Abuse

Director Gemma Hyslop examines how collaboration across the global mobility sector can help strengthen legal pathways and support for migrant women experiencing abuse.

Learn more

Media mentions

Global Mobility Lawyer: Middle East Conflict Puts Multinationals’ Crisis Plans Under the Microscope

Partner Abeer Al Husseini discussed immigration and duty-of-care challenges for employers amid Middle East travel disruptions.

Learn more

Awards

Partner Sarah K. Peterson Recognized as a 2026 Women in Business Honoree by the Minneapolis/St. Paul Business Journal

Partner Sarah K. Peterson is recognized by the Minneapolis/St. Paul Business Journal as a 2026 Women in Business honoree for her professional achievements and contributions to the Twin Cities business community.

Learn more

Blog post

Demographics, AI and Global Mobility in 2026: A Global Outlook on Workforce Strategy and Immigration Policy

Director Raj Mann explores how demographic change, artificial intelligence and global trade shifts are reshaping labour markets, workforce strategy and immigration policy in 2026.

Learn more

Blog post

Costa Rica Retirement Visa: Application and Requirements for Pensionado Residency

Immigration Supervisor Michael Salas Guzman explains the key eligibility requirements, documentation considerations and benefits of Costa Rica’s Pensionado residency program for retirees receiving lifetime pension income from abroad.

Learn more

Media mentions

Leading Britain's Conversation: One Old Arrest Can Stop You Entering the USA, Even If You Were Never Convicted

Senior Manager William Diaz outlines how US authorities evaluate prior criminal records under ESTA and what UK travellers need to know when completing their applications.

Learn more

Awards

Canada Managing Partner Cosmina Morariu Receives FCCCO Women in Leadership Award

Canada Managing Partner Cosmina Morariu has received the France Canada Chamber of Commerce in Ontario (FCCCO) Women in Leadership Award, recognizing her leadership and contributions to the business and legal communities.

Learn more
Generic Insights

Media mentions

Diário Do Turismo: Brasil passa a emitir visto eletrônico para chineses e amplia mobilidade de negócios

Managing Director Diogo Kloper highlights how Brazil’s new electronic visa for Chinese citizens reduces bureaucracy, lowers costs and streamlines business and tourism travel.

Learn more

Blog post

Why Climate Disruptions Are Reshaping Mobility Strategy

Partner, Global Responsible Business Practices, Lisa Koenig, Lead Analyst Dominic Dietrich, Senior Associate Sarah Blackmore and Senior Associate Sonya Berenfeld Cole examine why climate disruptions are reshaping mobility strategy as economic loss, workforce displacement and travel risks require organizations to reassess workforce planning and operational resilience.

Learn more

Media mentions

Construction Management: What Tougher English Rules Mean for Construction Employers

Associate Ilaria Iovieno and Immigration Consultant Sean Pearce explain how the UK’s higher English language requirement for work visas affects construction employers.

Learn more

Visas

FIFA Mexico 2026 World Cup Entry Requirements: Visa and Immigration Guide

Senior Business Immigration Manager Vicente Duque outlines key immigration considerations for international visitors traveling to Mexico for the 2026 FIFA World Cup, including visa eligibility, entry documentation and travel between host countries.

Learn more

Video

A Guide to EU Visa Categories for Non-EU Nationals

Explore EU visa options for non-EU nationals, including Schengen, long-stay and work visas like the EU Blue Card. Find the right visa for your needs.

Learn more

Media mentions

Global Mobility Lawyer: Give to Gain: Strengthening Safety and Legal Pathways for Migrant Women Experiencing Abuse

Director Gemma Hyslop examines how collaboration across the global mobility sector can help strengthen legal pathways and support for migrant women experiencing abuse.

Learn more

Media mentions

Global Mobility Lawyer: Middle East Conflict Puts Multinationals’ Crisis Plans Under the Microscope

Partner Abeer Al Husseini discussed immigration and duty-of-care challenges for employers amid Middle East travel disruptions.

Learn more

Awards

Partner Sarah K. Peterson Recognized as a 2026 Women in Business Honoree by the Minneapolis/St. Paul Business Journal

Partner Sarah K. Peterson is recognized by the Minneapolis/St. Paul Business Journal as a 2026 Women in Business honoree for her professional achievements and contributions to the Twin Cities business community.

Learn more

Stay in touch

Subscribe to receive our latest immigration alerts

Subscribe

Our firm

  • About
  • Careers
  • Firm Governance
  • Media Inquiries
  • Recognition

Information

  • Attorney Advertising
  • Legal Notices
  • Privacy Policies
  • UK Regulatory Requirements

Our firm

  • About
  • Careers
  • Firm Governance
  • Media Inquiries
  • Recognition

Information

  • Attorney Advertising
  • Legal Notices
  • Privacy Policies
  • UK Regulatory Requirements

Have a question?

Contact Us
  • LinkedIn
  • Youtube
  • Instagram
  • Facebook
  • Twitter

© 2026 Fragomen, Del Rey, Bernsen & Loewy, LLP, Fragomen Global LLP and affiliates. All Rights Reserved.

Please note that the content made available on this site is not intended for visitors / customers located in the province of Quebec, and the information provided is not applicable to the Quebec market. To access relevant information that applies to the Quebec market, please click here.