In individual cases it may be difficult for travelers to the U.S. to determine whether their entry falls under the Visa Waiver Program or if they must apply for a B-1 visa or even a work visa. Your situation will be individually assessed with reference to the frequency of entry, entry purpose, citizenship, age, company affiliation, etc.
You may wonder what is the maximum length of time that you can stay in the United States, which activities you can practice legally in the U.S. on a business trip, and what entry purposes are explicitly not covered by the visa-free travel under the Visa Waiver Program with ESTA? Are there changes to the entry regulations that need to be considered?
We would be happy to advise you!