Follow the steps to fill out the I 129s online effectively.

1. Press the ‘Get Form’ button to obtain the I-129S form and open it in the editing interface.
2. Begin by providing information about the employer. Fill in the name of the sponsoring company or organization, as well as the address details including street number, city, state, and postal code.
3. In Part 1A, indicate whether the petitioner employs 50 or more individuals and if more than 50% of those employees hold H-1B, L-1A, or L-1B nonimmigrant status.
4. Proceed to Part 2 and specify the validity dates for the proposed employment. Indicate if the employee will be a Manager/Executive (L-1A) or a Specialized Knowledge Professional (L-1B).
5. In Part 3, fill out the personal information for the employee, including their name, address outside the United States, country of birth, date of birth, and country of citizenship.
6. In Part 4, provide additional details about the proposed employment, such as the employment address, dates, job title, and description of duties. Also, include prior work history in the U.S. and summarize the employee's education and experience.
7. Complete Part 5 by certifying regarding the release of controlled technology or technical data to the alien beneficiary and selecting the appropriate box.
8. In Part 6, the petitioner must sign and date the form, certifying the truthfulness of the information provided. Include the printed name, daytime telephone number, and email address.
9. If the form is prepared by someone other than the petitioner, complete Part 7 with the preparer's signature, date, contact information, and firm name.
10. Finally, save the changes to your form, and consider downloading, printing, or sharing it as necessary to keep a record of your submission.

Begin filling out your I-129S form online today for a seamless application experience.