| COUNTRY | FORM | PHOTO | GREEN CARD | BUSINESS LETTER | ITIN | OTHER REQUIREMENTS | NORMAL | RUSH |
| Saudi Arabia | PDF | 1 | Original | Letter from U.S. Company | Yes | Invitation from the Ministry of Foreign Affairs in Saudi Arabia and a Visiting Visa Request form | 10 | 7 |
| Serbia | DOC | 0 | Copy | Letter from U.S. Company | Yes | Invitation from Serbia, and a Letter guaranteeing health coverage while in Serbia | 10 | 7 |
| Singapore | PDF | 2 | Copy | Letter from U.S. Company | Ticket copy | Invitation, hotel confirmation and a computer print out of the Business Profile of the Singapore Registered Company (sample) and Letter of Introduction | 10 | 5 |
| Slovak Republic | Must apply in person |
| South Africa | PDF | 2 | Copy | Letter from U.S. Company | Yes | Invitation | 14 | 7 |
| Spain | Must apply in person. Click HERE for more information. |
| Sri Lanka | PDF | 2 | Copy | Letter from U.S. Company | Yes | Invitation | 14 | 10 |
| Sudan | 1 | 1 | Copy | Letter from U.S. Company | Yes | Invitation | 10 | 7 |
| Sweden | PDF Appendix A
| 2 | Notarized | Letter from U.S. Company | Yes | Invitation. Application form must be notarized. Letter from insurance company or policy showing a minimum of $50,000.00 in worldwide health insurance coverage | 14 | 7 |
| Switzerland | PDF | 2 | Original Copy | Letter from U.S. Company | Yes | Invitation. Application form must be notarized. Letter from insurance company or policy showing a minimum of $50,000.00 in worldwide health insurance coverage. Northern California residents must apply in person | 14 | 7 |
| Syria | 2 | 2 | Copy | Letter from U.S. Company | Yes | N/A | 14 | 10 |