Guide

A Guide to US Business Expansion Strategies

In this guide

  • The key challenges businesses face when expanding into or across the US
  • How to approach business registration and choose an appropriate entity structure
  • Setting up payroll and compliance processes from the beginning
  • Different ways to hire and pay workers in the United States
  • Scaling US operations while managing ongoing compliance requirements

Expanding into the United States, or entering additional US states, can create significant growth opportunities, from reaching one of the world’s largest markets to accessing specialized talent across different regions.

At the same time, US expansion introduces operational complexity. Businesses need to account for federal, state, and sometimes local requirements, determine the right legal structure, and understand how employment, payroll, and tax obligations can vary by location.

This guide provides an overview of the main entity, payroll, and workforce models available to companies expanding into or across the US.

You’ll explore different ways to engage and pay US workers, including direct employment, Professional Employer Organizations (PEOs), Employers of Record (EORs), and independent contractor arrangements.

You’ll also find guidance on state registration considerations, entity setup requirements, and how Komp can support more connected workforce operations as your US presence grows.

Who is this guide for?

We've created this guide specifically for:

  • Founders and expansion teams at US companies entering additional states
  • International organizations preparing to establish operations in the American market
  • Business leaders looking for a practical approach to US hiring, payroll, and compliance

FAQs

Expanding into a new market means establishing business operations in another geography, such as the United States. Companies may enter through direct investment, create a local subsidiary, or use employment models such as an Employer of Record (EOR) when they want to hire without immediately establishing their own local entity.

The United States can offer several advantages:

  • Access to a large and diverse customer market
  • Deep talent pools across technology, finance, healthcare, and other industries
  • Established infrastructure for business growth
  • Strong legal frameworks for intellectual property protection
  • A competitive environment that can support innovation and expansion

Yes. A foreign business generally does not need a US Social Security Number simply to operate in the United States. Depending on its structure and activities, the business may instead need an Employer Identification Number (EIN) and other federal or state registrations.

Businesses have several options for building a US workforce:

  • Establishing and employing workers through your own US entity, such as an LLC or corporation
  • Using a PEO under a co-employment arrangement
  • Working with an EOR to employ workers without establishing your own employing entity
  • Engaging independent contractors where the working relationship meets applicable classification requirements

Komp helps organizations connect workforce operations across payroll, compliance, EOR, contractor management, and workforce information as they expand into new markets. With Komp, businesses can:

  • Coordinate workforce structures as operations expand across US locations
  • Connect payroll processes with broader employee and workforce data
  • Manage employees, contractors, and EOR arrangements within a more unified operating environment
  • Improve visibility into documentation and compliance workflows as workforce complexity increases
  • Support international and US workforce operations through connected global workforce management

Ready to expand into the US market? Explore how Komp can support the workforce structure, payroll, and compliance model behind your expansion strategy.

Setting up a US entity typically requires choosing an appropriate business structure, registering with the relevant state, obtaining required tax identifiers, and completing any additional registrations necessary for the company’s activities and workforce.

Komp can support the workforce planning around this process by helping organizations evaluate:

  • Whether direct entity employment, PEO, EOR, or contractor models better fit the expansion plan
  • Payroll and workforce requirements associated with the chosen employment structure
  • Compliance and documentation workflows as teams expand into additional locations

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