US-Based Manufacturer & Sustainability Consultant Support

I'm seeking support for my EB2 NIW application. I require a letter of intent from a US-based furniture manufacturer or sustainability consultant. The main aim of this is to highlight that the company has a legitimate and documented status and they would like to take my services related to sustainability.

Key requirements:
- The company should be legally registered in the US.
- They must be able to provide proper documentation to support their status.
- The letter should express an intent to work with me after my visa gets approved.