I have 4 letters stating my software was adopted by leading companies. Does that count as evidence?

Yes, letters attesting that your software was adopted by leading companies can serve as evidence in the EB-1, especially if they detail your specific contribution and the real impact of that adoption. They help demonstrate that your work influenced the market, which is precisely what the EB-1 looks for in an extraordinary ability profile.

What makes the difference is not the number of letters, but the content of each one. A strong letter typically:

• Identifies the signatory and the company’s relevance in the industry.
• Describes exactly what you created and your role in the project.
• Shows how the software was used and what effect it produced, in a concrete and verifiable way.
• Places your work in context relative to other professionals in the field.

Even so, letters alone rarely suffice. They tend to carry more weight when they are part of a broader package that includes awards, publications, media coverage, speaking engagements, and other independent evidence. The responsible agency (USCIS) evaluates the full picture on a case-by-case basis, so it is worth building a coherent portfolio and checking the updated requirements at the official source or with a specialist before filing.

About the author

Victoria Harper

Editor-in-Chief

Meet the author

As a journalist and lead editor at Visto n’ Visa, Victoria helps ensure that immigration topics are covered in a clear, trustworthy, and easy-to-understand way. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.