Unlock Your Gateway to Success in the US Market with Ellis Porter's Expert US Expansion Immigration Services!

With boots on the ground in the US and the EU, Ellis Porter’s US Expansion team helps EU-based companies develop and execute immigration work visa, green card, and compliance strategies to launch, staff up, and grow new business ventures in the high-value US market.

Our US Expansion Immigration Services:

  • Navigating ESTA and B-1 Business Visitor Rules
    Ellis Porter provides comprehensive guidance to company leaders and teams planning pre-launch business visits to the United States. Whether entering under the Visa Waiver Program (ESTA) or with a B-1 business visitor visa, our expertise ensures your travel is compliant, efficient, and aligned with US immigration rules.

    ESTA and B-1: Purpose and Eligibility

    • ESTA (Electronic System for Travel Authorization): For citizens of Visa Waiver Program countries, ESTA allows short-term business visits to the US for up to 90 days without a visa. Permissible activities include attending meetings, negotiating contracts, consulting with business associates, participating in conferences, and conducting market research. ESTA does not permit employment, hands-on work, or receiving payment from a US source.

    • B-1 Business Visitor Visa: Available to nationals of all countries, the B-1 visa allows business visits for a broader range of activities and longer stays (up to six months, with possible extensions). Permitted activities include attending meetings, negotiating contracts, participating in trade shows, consulting with US partners, and certain types of short-term training. Like ESTA, the B-1 visa prohibits employment and productive work in the US; compensation must come from abroad.

    How Ellis Porter Helps:
    Ellis Porter’s US Expansion team supports your business visits with:

    • Assessing eligibility and selecting the right travel authorization (ESTA or B-1) for your needs.

    • Advising on permissible business activities to ensure full compliance and avoid unauthorized work.

    • Preparing supporting documentation, such as invitation letters, business itineraries, and evidence of foreign ties, to facilitate smooth entry at US ports of entry.

    • Providing practical tips for a successful visit, including how to present your purpose to Customs and Border Protection officers and what to expect during inspection.

    • Addressing special considerations, such as frequent travel, digital privacy, and changes in ESTA eligibility due to travel history.

    With Ellis Porter’s strategic guidance, you can confidently plan and execute pre-launch business visits to the US, laying the groundwork for a successful expansion while minimizing immigration risks.

  • The E-1 Treaty Trader visa is designed for business owners, managers, and key employees from countries that maintain a qualifying trade treaty with the United States. This visa enables eligible individuals and companies to live and work in the US for the primary purpose of carrying out substantial trade-whether goods or services-between their home country and the US. To qualify, applicants must be nationals of a treaty country, and the trading company must be at least 50% owned by nationals of that country. The majority of the company’s international trade must occur between the US and the treaty country.

    How Ellis Porter Helps:
    Ellis Porter partners with companies to leverage the E-1 visa as a strategic tool for US market entry and growth. Our team provides end-to-end support, including eligibility assessments, documentation preparation, application guidance, and ongoing compliance assistance. We ensure your E-1 visa strategy aligns with your business goals, enabling you to launch, staff, and expand your US operations with confidence and efficiency.

  • The E-2 Treaty Investor visa empowers entrepreneurs and companies from treaty countries-including the UK-to invest in and actively manage a US business. To be eligible, applicants must be nationals of a treaty country, make a substantial investment in a real and operating US enterprise, and own at least 50% of the business or have operational control. The E-2 visa is available for both investors and key employees who will help develop and direct the US business.

    How Ellis Porter Helps:
    Ellis Porter works closely with international companies and entrepreneurs to make US expansion seamless through the E-2 visa. We guide you through every step-from confirming eligibility and structuring your investment to registering your business, preparing strong applications, and ensuring compliance for both investors and essential personnel. Our comprehensive approach allows you to launch, staff, and grow your US operations while maximizing the flexibility and benefits of the E-2 visa.

  • The L-1 Intracompany Transfer visa enables multinational companies to transfer key employees to their US operations, providing a flexible and efficient pathway for launching and scaling new business ventures in the US market. There are two primary categories:

    • L-1A Visa: For executives and managers who will oversee US operations, manage teams, or direct essential company functions.

    • L-1B Visa: For employees with specialized knowledge of the company’s products, services, technology, or procedures, essential for supporting US business activities.

    To qualify, employees must have worked for the company (or its affiliate, parent, or subsidiary) outside the US for at least one continuous year within the past three years. The US and foreign entities must have a qualifying relationship, such as parent, branch, subsidiary, or affiliate status. L-1 visas are available to employees of any nationality, with no annual cap or lottery system.

    L-1A visas are valid for up to seven years, while L-1B visas allow for a maximum stay of five years, with initial and renewal periods depending on the nature of the US office. Both categories offer a dual intent option, allowing holders to pursue permanent residency while working in the US.

    How Ellis Porter Helps:
    Ellis Porter partners with global businesses to develop and execute effective L-1 visa strategies for US expansion. Our team manages every aspect of the process, from assessing eligibility and preparing petitions to guiding companies through compliance and supporting employees and their families. We help you transfer executives, managers, and specialized talent to the US, ensuring your new office is staffed with the expertise needed for a successful launch and sustained growth.

  • As your company continues to grow in the US, Ellis Porter can help you use all available US work visa categories to expand your US team, leveraging our decades of experience providing immigration services to US companies.

    When temporary staff assignments become long-term assignments, Ellis Porter can coordinate immigration strategies to obtain US Permanent Resident (Green Card) status for your employees.

    And at every step in your US expansion journey, Ellis Porter is there to help you understand the US immigration laws impacting your business to assure you remain legally compliant.

  • When expanding operations to the US, immigration legal issues are just one piece of the puzzle. The most successful US expansions are supported by a team of complementary professionals in key areas, but putting together the right team can be challenging.

    To help companies assemble a highly-effective expansion support team quickly, Ellis Porter has carefully curated an ecosystem of experienced US expansion services partners that provide services in the following key areas:

    • US Market Research assistance (leveraging Ellis Porter’s relationship with the UK’s Department of Business & Trade)

    • US Legal Entity Incorporation

    • Opening bank accounts and obtaining a Federal Employer Identification Number (FEIN)

    • US Office Selection

    • Human Resources Support, Employer of Record Services, and Payroll & Benefits Services

    • US and International Tax and Accounting Support

    With our US expansion ecosystem, Ellis Porter can make all the strategic introductions you need to achieve your US expansion goals.


About Ellis Porter

Ellis Porter is a leading US and Global immigration legal services and consulting firm that powers the global ambitions of companies and individuals. We provide clear, practical, and responsive guidance on complex global immigration issues, including business travel, temporary work visas, permanent resident visas, immigration legal compliance, and immigration program management.

With over 300 immigration professionals on our team, including over 65 immigration attorneys, Ellis Porter is the fifth largest immigration firm in the US, and the second largest immigration firm with a presence in both the US and UK (London).

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