Hi,
I have a construction company. We are a subcontractor.
I need an example of an introduction letter and offering my employees to an electrical contracting company. (bussiness)

Hi, Mariela82!

I just titled and moved your post that you had placed as a response to someone else's question to a thread of it's own so that it will be recognized as being your own question.

This place doesn't work the same way that a chat room does. So, if someone wants to post a question that's not in any way a response to the first question that's at the very top of the page, then it's best to be starting a new thread with the new question.

Concerning your question, There are many sites that deal with how to write effective company introduction letters. If you click on the following links to searches, you'll find them.

How to Write an Effective Introduction Letter for a Company - Google Search

Company Introduction Letter - Google Search

Sample Construction Company Introduction Letter - Google Search

When you find the sample letters, you can tailor them to fit your specific needs.

Concerning your specific needs though, if you would like to start a draft copy of an introduction letter on this thread, without putting in any identifying information, I'm sure that there will be those of us who would be willing to advise you as to how you could make improvements to your letter.

You know more about your specific needs than anyone else here, so doing it that way would be the best.

Thanks!